Port and polish TB's, manifold and lower manifold from IPS Motorsports!
 

Update 6/28/13


Ok I did the swap last night. Just wanted to show more pics and info regarding the before and after of all the parts side by side.

First up the weight of the ported lower vs unported, 5.80lbs vs 6.04lbs. So clearly some weight loss of material.

Next, the openings at the bottom of the runners running in both directions, 1.53" vs 1.43" is where the bump is that the injector is slid into. Clearly with the bump gone its opened up quite a bit!! The other way it not as much opened at 1.99" vs 1.98".



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Next, the openings at the top of the lower mani are 1.70" vs 1.70" and 1.53" vs 1.52". The reason the upper part didn't open that much (only 0.01") is because every part on the intake system starts smaller at the TB then gets bigger for the next item. This is because nissan wants the parts to never have to "hit a lip" with air flow. It's better for flow to go through a small space and open into a larger one, than flowing through a bigger opening then hit a lip of metal of the lower mani and cause a bunch of turbulence. So the lower mani's upper part wasn't touched much because the upper mani is what got ported to be port matched to the lower. And looking at the pics with upper mani's gasket system we couldn't port more of it or we'd of ported into the gasket space destroying the upper mani.

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Next, 1.86lbs vs 1.92lbs of each TB.

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Next, upper mani's weight, 7.90lbs vs 7.16lbs. Now why is the ported mani heavier than the unported? Well the ported one is off a g37. They for some reason give it very long cylinders where the bolts go through adding mass and needing longer bolts. They also use brass vs what looks like titanium on my 13 mani!! All my silver looking threaded parts are rainbow colored like when titanium heats up.

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Next, the upper mani runners going in both directions, 1.85" vs 1.82" and 1.56" vs 1.50". Now you'll ask yourself these numbers don't match the numbers above for where it bolts to the lower mani's openings. That's because I didn't measure the exact opening of each item. I stuck my calipers down inside so they laid flat on the parts surface and measured wherever the tips made contact. This just insured a proper measure of each item. The calipers tips are like a 0.5" long so its inside more but i looked and each part is flow matched 100%. You can also see some horrible lips on the unported mani that needed to go away.

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Last, the opening of the TB hole on the mani. 2.47" vs 2.46". Again, because of flow its the TB that got all the porting and not the item it sits on. The TB is 100% port matched now to the upper mani.


On a side note. One thing I hate is the oil in the system! I'm not even boosted and oil comes out of the gaskets of the lower mani to head and injector o-rings. Just nasty stuff. I need to have my catch can running to atmos.

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Update 3/17/14. Update.

AZ is out. IPS Motorsports in columbus is in. I stopped in the shop and talked to the porter for awhile. His prices seem very low and we can undermine even Z1's manifold with what I believe can be a much better job!

Also I talked to the tuner. We will do everything for you guys! We will dyno my car as is. We will install the lower mani. We dyno again. Then we will tune it. Then we will install the upper mani. We will dyno with the stock tune. Then we will revert back to the lower mani tune and we will tune off that for both mani's. Then do all that with the TB's.

You will know what power you make with each item you buy and add on and you will know the before and after of everything without someone lying and changing dyno numbers. It will be legit, I'll make sure of it as I do all the motor work!

Stay tuned.



Update 3/1/14. I now have a spare mani and lower mani. What I think ill do is just port them for starters. See what the dyno says and then when I get some TB's I'll send those for porting.



Wanted to do another idea I had because I haven't seen it anywhere yet. Another member and I have been talking about porting these items. DE has some TB's ready to do and I just bought the lower intake runners off eBay. I'm waiting to pick up a stock g37 mani off a friend and get some TB's myself so I'm not without a car. The goal obviously is more power. The question is how much power vs what the cost of the porting we be.

Z1 is now porting a stock mani and it's running about $300 plus shipping. The results seem to be you get as much midrange as the motordyne m370 mani (minus 0-3TQ) but you don't lose top end power like you do with the m370. Seems the best of both worlds right?! Well all I've seen is Z1's dyno's with the m370 vs their modded stock mani so it will be interesting to compare the stock mani vs a modded stock mani with my own dyno testing (no cheating ). Then on top of that i will be adding ported TB's and the lower mani since its a crude cast piece that looks very rough to the finish.

Fingers crossed it all works out and its a nice boost for NA power. I'll report back with pics of IPS's work as it progresses.

PS, if it does work out I'll send all 4 of my items to be ported again by IPS and sell them to someone looking for the whole package so your car won't be down. Then you can send your OEM stuff to IPS and the gift keeps on giving.

Interested in your results. Please document your baseline with mods.

Thanks!

In for results, thanks for going through the effort to do this

Thought I'd get some befores going :)

Lots need done. And clearly the last two owners did not have a catch can like me. These things have oil and black tar build up galore! Hell just cleaning might net a horse power or two haha.

This is everything on just one side.

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interested on buying
 

:driving: First, thanks for the post and the effort. Do you have an idea when you might be ready to sell yours? I'd like to be first on your buyers list. I've just installed the latest FI cats and exhaust. I'm extremely happy with the end results.
Thanks

Soon I hope. Had to fix my car after an accident. Finishing it tonight though.

update
 

I bought a 350z manifold on ebay yesterday. I plan on making my version of a motordyne m370. I'll be following your post to aid in my efforts. Good luck and sorry about accident. There's a follow on the forum with the same manifold I bought at a a very good price. If you're interested pm and I'll give you his info.

In or updates. Very curious of results cause I also want to do this!!!

Update.

Everything is at IPS for porting. They're a little busy so porting should start next week. Then we'll figure out dyno time and go from there.

I'm stoked to see some results!

Also, chucky - you should throw up some pics and DIY/process of everything you do on your own to modify it. I also saw g37 intake plenums on ebay for $100 bucks I was thinking of buying one also and just taking a nail file and some sand paper to try it on my own and then swap it out and resell the stock one off my car. have a dremel handy too with some good tips but want to avoid using that for "UH OH" 1st time mistakes.

ya know, to avoid down time on my car and just take my time smoothing everything out here and there at night time

m370 mod
 

:biggthumpup: I'll follow up but it will take a while. I got rear ended on my motorcycle and I'm rebuilding it at the present.

sorry to hear brother! Hope you didn't get hurt.

Parts are done. Picking up today.

cant wait man, I have been thinking about doing this myself, Since I did all the head work on my old DSM's. Just did the gasket match.

Ok well I'm going to start out saying I'm not going to say anything. Lot of emotions going on right now about a few things so discuss as you will. I'm going to keep quite till dynoing. Might even do some more myself before then.

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interested in the dyno numbers. How much this cost you

To much for what I got. Got screwed from quote to actual.

damn I hate when people do that. However it looks really nice and still want to see dyno numbers. Do you think this is possible as a DIY?

This looks very interesting. Sub'd for updates on this. Thanks for being a pioneer Syno and sharing the results with us! :)

Decided to ship the Tb's to Maxbore instead of just a polish and profiling of the butterfly shaft that I got. I already have $130 into them but again I thought I was getting porting too!!

Maxbore charges $35 for profiling the butterfly shaft which I believe is for only 1 TB so I'm thinking positively on this and only looking at it as a $70 loss instead of a $130 loss since my shaft is smooth ;)

We'll see what they look like when they come back. Again right now the TB is 2.6" at the front lip and tapers to 2.35" at the butterfly plate. Then it goes back up to 2.39" at the back. This is all bad since the manifold is 2.5" so the TB needs to be at least 2.5" also!

I emailed Maxbore and he said these would go from 60mm to 65mm the whole way through with a new bigger butterfly. Hope it all works out this time!

Yes a 370z member did it but he's replaced his heads, motor, tunes a HR ecu, makes his own full exhaust, carbon fiber full diffuser, fenders etc etc. so if you got skill start porting. If not, don't do it.

Sub'd and interested in the results. Syno ~ Are you using a long tube or short ram air intake? Also wondering which air filters you're using.

I custom made a stillen copy out of silicone and used their 3" k&n filters RU-2820.

DIY cai? - Nissan 370Z Forum

Great link and DIY for CAI. I'm modding my Takeda CAI by shorten the 3" tube to get out from the back of the MtFuji emblem in order to get more air.

1) I noticed no upper manifold cover. Was that for the DIY pics or do you normally have the cover removed? 2) No M370 installed from the DIY pics. Do you now? 3) I noticed the hoses going to your PCVs going different directions. Didi you install dual oil catch cans?

Sorry for the questions. Just interested and respect your work.

Thanks. I'm putting in the inlet ducts for more air on my bumper if you've seen them.

My cars fully gutted. Anything that can go went. The hoses are for my AOS I made. See here, post 3. 2013 sport build - Nissan 370Z Forum

Ok TB's are in.

So front lips gone to 2.64" and tapers down into the center but now there's no more lip. The middle went to 2.51" as far as my calipers can get in from the front. 2.49" now on the back lip which now looks port matched to the manifold!!!! I might have a little sanding to do on the mani, won't know till I bolt them up. And as far as I can get in on the back side closest to the butterfly, it's now 2.48"!

So before 2.6 to 2.5 but then 2.5 down to 2.35 at the butterfly, then back up to only 2.39 at the mani.

Now 2.64 to 2.51 but only down to 2.48 at the butterfly, then to 2.49 at the mani.

I wish the new butterfly was knife edged though.

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smmoooooooooth!

Any updates??

talked to my tuner today. looks like next saturday will be the tune as of right now. however since the porter gave me issue and money here and there i just told him to do a regular old tune and dyno. ill show up with the parts already installed and just go from there. since ill control the dyno settings ill make sure my runs are the same settings and such as in september 2013, august 2013, and next saturday. with a dynojet and the same correction factor, the correction numbers should all give the same numbers as if all runs were done on the say day even though weather changes. for reference ill post the first 2 dynos ive done there so you can see where the car was at in the very beginning, middle and end. wish me luck i get in, get tuned, and come out ahead!

blue line
18x10.5+15 RPF1 with 285/35/18 htr Z3
topspeed true dual cbe with 18" resonators installed
custom cai

green line
18x10.5+15 RPF1 with 285/35/18 htr Z3
custom straight pipe true dual cbe with 18" and helmholtz resonators
custom cai
z1 post maf tubes
ebay LTH
Attachment 144803

Good luck on this. I know your pain. My last vehicle was a Titan and I modded mine with an LS7 throttle body paired with a hybrid 07' Titan intake manifold using an LS3 snout. I was one of the first 3 with the manifold and it wasn't all fun in the beginning but the result was astronaut level.

Ps I'm selling all my OEM stuff unported so someone here can buy it, send it out for porting and install on their car so it's not down for a week or two.

Tuner got a job in California. Before he heads out he's doing some group tuning before hand. The new date looks to be July 7th

Update first page

Damn nice write up man ! Defiantly looking for the numbers when all said and done .
Still I the fence about doing anything like this , price vs power gain ? Thanx for all this work

Well for $199 TB's and $100 for the manifold, after intake and exhaust where else you going to find HP for only $300? Add the upper for $295 and even at only 5 maybe 10 HP it becomes worth it.

Just went for a test drive. Surprised it went great. I thought the TB's would need the idle screw adjusted but it drove 100%. Good to know when you need to drive to the tuners.

You'll be a 100% right if the gains are there . I've been waiting for someone to dyno a car with only the Z1 or Motordyne manifold ( yours been the same if not better ) , intake and exhaust , seems like I the ones I see are with headers and TPs or HFCs . And I wasn't impressed with the sub 320 WHP . When you can get to that without the Z1 or motordyne mani.

I'm a little confused, not 100% sure what you mean. Do you know my mod list? I have more on there then just the intake setup. 320hp also isn't bad as long as you're on pump 93 and SAE correction factor. That's a good 50hp increase from stock. Pretty good for a NA car to pick up.

:icon43: I don't did I miss it? Do you have headers and or HFC's? Intake and catback and what you have done with the port and polish is what I was looking for but looks like you might have more? Sorry man

Its cool I just thought you were talking about me only doing the intake porting. Was just letting you know I have a lot more so fingers crossed I do break 320hp on SAE 93.

So I finally got tuned today at Smokeys and I believe the 2nd here. Although the old tuner is gone for reasons that aren't good I guess. To my great surprise the car was still rich! It was rich stock I'm sure, rich with a CBE and CAI, rich with a LTH, and rich with ported TB's, ported upper and lower manifold. Average looks to be around 11.6-11.8. That sucks because I was taking it easy for fear of being lean for like 3 weeks after the manifolds and TB were installed.

Attachment 143839

Now after the tune its running around 12.6-12.7. The tuner said some run into the 13's but we felt safe with it turning into a track car to not make a dyno queen. I was told timing had been picked up around 3-4 degrees and there were some issues with uprev. The data logger was acting up only getting some of the items at times and the 2013 ROM wasn't doing what he wanted it to do. He would tell it to do things and it wouldn't 100%. Pretty much took all day after waiting 2 hours for uprev to email a license and some other things then start to build a new MAF map.

Since the car was rich he did a base run pull with the OEM size MAF housing so we could see a before and after on his dyno. I've never been on this one before and never heard of it. It's called a superflow AWD and uses something called STP instead of SAE or STD. After the base he started turning everything up. We swapped the MAF from 2.5" to 2.75" and finished it up. Results look to be around 15hp and 6tq at max peak with around 15hp and 15tq above 4500rpm in the mid range (minus that base run boost from 6300-7100). Pretty much what I thought a NA tune would do.

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Next I have to get back on the dyno I've been to a few times before and really compare all of them!!

Mods.
Customs 2.5" true dual CBE straight pipe
LTH
Custom 2.75" CAI
63mm ported TB
Ported upper mani
Ported lower mani

Dyno day.

Its late anything?

Well if I didn't have bad luck, I'd have no luck. I had a feeling my car was just not the right test car. I think to much has been done and I'm just not sure. I really can't wrap my head around what happened. I'll try to do my best to explain. If you want to chime in I'm all ears!!

Ok I'm just going to compare my last dyno to this dyno with changes, the floors yours after. PS, I will find a local 370, take his car there, dyno, add parts, dyno. It's really the only way!

So what changed?? (I'm going to list it all!)
Temp last time 72*. Temp this time 78*.
Humidity last time 39%. This time 30%.
Both 29 in-Hg.
Both SAE.
Both corrected to 1.01 factor.
Both smoothing 3.
AFR last time around 12.7 average. This time around 13.3 so car is tuned???
Last time no tune. This time tuned.
99% sure last time 4th gear. Just called dyno guy, he said 100% 4th gear.
Tires last time 29lbs. Tires this time 30lbs.
Last time OEM lower. This time ported OEM lower.
Last time OEM upper. This time ported OEM upper.
Last time OEM TB's. This time ported OEM TB's.
Last time Stillen gen 3 copy, design and pipe size CAI. This time new CAI with more of a straightened piping with filters in the fenders and bigger MAF housing increased to 0.3" in size over old one and tuned for it of course!

And last, the guys said they haven't touched the dyno in anyway since last year.


Ok on to pics and summary. The new dyno looks like it gained absolutely nothing! And remember, I'm tuned now!! ((((I gained roughly 15hp/15tq at the other shop where I was tuned. The difference in the before and after on the day I was tuned of course was the tune and also the new CAI listed above, that's it. So at the old tuner the "base run" was everything that the first IPS dyno was but plus the 4 ported parts.) The lines criss cross today a few times throughout with a hiccup this time at 5500 rpm and it gained some power at 7100 rpm to redline (big deal). Besides seeing the leaner AFR this time you'd think I never got tuned, the CAI did nothing and the porting did nothing. I'm at a loss. I really thought I had it with the gearing.

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FYI, base vs final tune on dyno day in their weird correction factor. Also my new CAI and tune here.

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Their dyno did have a dynojet correction factor setting. Base DJ factor...

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Final tune DJ correction factor...if their DJ factor really is like a DJ like I was on today then that's why the TQ are both mid 240's. But then where did my HP go??!

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Your build is sick man are you planning jn making a functional rear diffuser and installing a wing for downforce ?

The last one is the dyno from yesterday? It shows a 16hp gain? I wonder if you need to extend the rev limiter now. Not sure what stock internal can hold but I'm sure you can add a few hundred.

A rear I'm not sure. Don't know how. A wing yes. The aeromotions r2.


No yesterday was not the last one. Read the post right above that one. The one you're talking about is the tuners dyno.

370z 50-100mph tread. Everyone post. - Nissan 370Z Forum

So my dyno and 1/4 mile all suck but at least I have some power to prove from all this!! This tells me my dyno reads low and my tires suck for the strip. I'm getting 6.5 seconds on the vid and that's with my tires chirping in 2nd. I figure that's a good tenth or two right there if i can get them hotter. This is ZL1 and C63 AMG territory so woohoo for only 302rwhp.

synolimit, 2013, Nissan, 370z, 3200*, 3.7, 6 Cyl, All Motor, NA, 93, 302, 244, 14.0, 105.5, 6.5

I had seen you on the370z forum, but didn't know you were a member here. Im going to have to try that 50-100.

What parts do you have unported?

Currently I have 2 sets of TB's and 1 lower mani. They are ready to be sent for porting at anytime someone buys. Currently one member here is looking.

One set of TB now. Sold another set and the lower :DOMO:. I'll have the buyers OEM stuff back soon if interested.

added the upper intake manifold back into the FS thread!!

soon to have bench flow testing done!

https://www.myg37.com/forums/private...le-bodies.html

I'm slowly liking these mods... LIM & TB...

I got a stock UIM if u want to buy port and flip...

I just bought some. Pm me price though.

Throttle Body Results
 

RESULTS! I will recommend these!


Dyno: Dynojet


Dyno video:

Dyno graph: AT BOTTOM

Car: 08' G37s 6MT


The Throttle Bodies were the last mod that I have done. Prior to the new throttle bodies my numbers:
304.87 HP
256.86 TQ
STD
Mods: Motordyne Art Pipes, Motordyne E370 Shockwave Cat-Back Exhaust, Motordyne Intake Manifold, Stillen Gen3 Intakes, Uprev Tune.


Numbers after the new TB's and retune:
317.92 HP
269.98 TQ
SAE
Mods: Motordyne Art Pipes, Motordyne E370 Shockwave Cat-Back Exhaust, Motordyne Intake Manifold, Stillen Gen3 Intakes, Uprev Tune, 63mm ported TB's.

EEEEEExcellent!

Beautiful. Might look into this mod now.

OneSickBlackG: how long did the retune take?

So if I buy 63 mm throttle bodies should I keep my Takeda intakes that I believe are 2.75 or put my stillens back on that are 2.50??

Let's do it. I'm getting mines same time and I'm ready to install my 4.08 gears and uprev.... Only $300 after core refund.

After my wheels and tires get installed, the gears or this mod will be my next power mod. If a pumpkin with the gears installed would show up in the private classifieds section, it would make my decision easier.

However, I might get some sway bars first if there is a good Black Friday deal to get that basic mod out of the way.

Takeda for sure but you're going to want to delete that MAF section at 2.5". Buy the MAF housings and pipe off ebay and either weld it in or use 2.75" couplings to attach it. That's what I did to the CAI I made. You will need a retune though and you won't be able to drive to the dyno with them one. What I did was use couplings, drove with my 2.5" installed and slapped the 2.75" on while on the dyno.

So I've decided to pay for a locals uprev license to get this moving along (cheaper than you think :) ). We will be tuning his G37 as is right now with CAI, HFC and CBE. I will then be adding my parts, do a base run to see what they do alone, and tune again. So all of you that have been waiting, wait no longer.

As I thought talking with the tuner these parts WILL show the greatest gains for FI guys! So if 500hp isn't enough then come see me. The tune is setup for November 30th at 3pm at Covert Tuning in Columbus, which by the way, nice cars! Currently 4 TT Lambos sitting around with 100% CNC custom manifolds with integrated BOV's, 4" intake pipes, CNC exhausts, headers etc etc.

Stay tuned.

https://www.facebook.com/CovertTuningDynamics

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Aren't the Taketa's necked down/reduced to 2.50" at the MAF for about 3" ?
I also think it depends if the install included the cut-out at the two air inlet location that both these CAI's use. For me, I have both and have stuck with the Taketa's. These TBs are also on my list.

^ There was a CAI a while back ( like 3 years ago or somethin ) called "Akuma" , that intake was 2.7" all around even in the MAF area, too bad they're not making them anymore, searched everywhere for a used setup but with no luck ..

Why the heck are the good things always discontinued ?! i don't get it !!

http://www.the370z.com/attachments/i...img_0002-p.jpg

I remember Covert Tuning Dynamics. It's that company that a guy called David made to build his LP2000-2 SV TT since no shop would accept to build a 2000hp Lambo Murcielago. Did this car even get a quarter mile run in?

Anyway..can't wait to see the results.

Yes they do neck down. What I did was buy 2.75" pipe off eBay and a new MAF housing and welded it on. You could cut that section out and reattach with two couplings so you could drive to the tuner. Then there throw the new section on and tune for it. This is what I did too.

Like I said above buying some pipe and a new housings with couplings is super cheap and easy.

Not sure. That's the owners car. Right now I guess it has a slight problem with the TB's. There so much air flow that the TB's are being forced closed by the boosted air. What came to mind is my TB with profiled shaft and thinner everything :)

lol. who knows? :dunno:

It actually uses 102mm LS1 TB's so since a vet only has 1 TB the air tries to move both in the opposite directions. The tuner just got back from Motec training in Cali so they'll prob increase the voltage on the one side to fix it. If I had $9000 Id try Motec.

The Akuma kit is 499 new not bad still lower than Gen 3's
Welcome to Akuma Motorsports

its bad on my end haha. those parts on ebay should be $100 with the filters being the most at like $80.

Dyno tune for my car T minus 1hr! Wish me luck this time.

This is not the one set up for Nov. 30 right?

No just mine. I still have everything on my car but this won't be a back to back. Same dyno and tuner but not much to go on. All you'll see is one tuner vs another.

dyno didnt happen last time, i forgot to say. the tuner couldnt text my new phone so it didnt happen.

this is not the dyno going down on the 30th but today is the day im going back to see the tunes safety!!!! again wish me luck!!

Here we go

And so far we found why the last dyno was so low and the car made no HP with the porting...the cars knocking and is in a lower "safe" map. For whatever reason target AFR was 12.8 but running 13.5 with a lot more timing then he normally runs. We are adding fuel and having another run.

Love me exhaust!!!

So how did u end up??

Gained 14 hp and 10 Tq over other tuner. It was targeting 12.8 AFR but hitting 13.5. So we got it to 12.4 and pulled about 4 degrees of timing as it was to much and knocking and running on the safe mode map. I still need more so e85 is next!

That was on what octane?

93......

4 days in counting.

Just a reminder!! PLEASE when you guys ship back your cores protect the parts and apply insurance on the item for the amount I'm giving you back! Does no good to only take the free $50 insurance when I'm giving back $190 or $200 or $250 and the parts destroyed. I just received this TB and there's no way I can resell this! Again I state in the FS thread it's your responsibility to package correctly and put insurance on the returns.

Thanks

what's your exhaust set up?

Custom. LTH into a 2.5" X pipe with Helmholtz, the mid pipes have 18" resonators and the axle backs are just straight pipes.

Sounds exotic! Great job

Thanks. I got lucky. It started as a top speed pro 1 and was good. I added the inlines to delete some rasp and it was great. Once I did LTH's it was crap! I added the Helmholtz's and it was good again but to quite. I cut the muffler off and now its amazing in my eyes.

30th came and went? :)

Sorry on vacation hunting. Wife just sent pics.

Car made what I thought but we are going to retest next week because the car had cats and we believe its holding us back with not letting out new air in get out.

11hp 9tq down low, nothing mid range and 6hp 5tq up top. With the cats removed we are hoping for 10/10 from start to finish.

Picssssss

Picccssss

nice man but does every have that DAMN dip in power at 5500? :/

Huh?

That dips a MAF spike. Why? Idk. Cars with 2 MAF's can be a pain. I did notice the owners MAF pipe is not completely round from the Stillen's T bolt clamps. This is why I hate those. You can't tell how tight or loose to make them. Unless you're running 30 pounds of boost, worm clamps work perfectly.

So only a 7 horspower and 5 torque increase with all three installed?

If you have access to 95 or 98 pump gas you wud get some decent gain from these breathers .. But what happened when u decreased the timing 4d .. Did you lose some power ?!

If you're only looking at peak power yes. There's more increased power at other points in the powerband as high as 11. Till we further test the setup by matching the exhaust to the new bigger intake we won't know the true gains. This is NA power let's not forget! The claims you see from increases from most parts is BS! It's almost impossible to gain good power with no forced induction. Anything you really gain will come as the first mod. After that expect almost nothing. For spots to even get 11 is pretty good at his mod level.

knocking at higher levels will always kill power. We had to decrease timing to make power. The car over all is making about 5-6 degrees less than it should! Based on that we could be making a killing if we figure it out.

What are you making timing wise up top before the knocking

no idea. It's at 23 now. Knocks over it.