Organizer put me down for Uprev but I wanted Ecutek. Tuner is planning to convert my tune over in November.


Michael Upton’s 3 “ intake kit with Apexi filters


EPS throttle bodies are significantly larger than stock.

 

Had a good day Thursday with my G /s...
Went for a run, locked all my worthwhile possessions in the trunk (phone, wallet, laptop etc), dropped my only key somewhere on the 3 football fields I was running around.
A 6mi walk home, a tow, $250, an insurance claim, and 20 hours later I got back into my car.
​​​​​​
The passenger and driver door trim (interior and exterior) and shift lock cover are now all mucked up from the tow truck breaking in, new scratches on the hood from sitting in a shady neighborhood overnight, and the dealers still won't fix the rust on the trunk corners. Says TSBs don't cover cars out of warranty.

I learned a lesson guess.
/end rant.

 

TSBs are covered regardless of warranty. you should fight that.

 

^not true at all. i think ur confused with recalls

 

Swapped most of my body mods from my 07 G35X to my new 2012 G37 S Premium 6 speed! Also put my G35X mostly back to stock. Going to switch exhausts soon since the 2012 has meh exhaust.

 

 

Ah. Curious, what was the last year they offered the 6MT? 13?

 

That's right.

The next year they renamed the car Q40, and sold it throughout 2014 and 2015 model years, right alongside the new Q50... which seemed a really odd decision. And they abandoned the 6MT in the Q40, as well as the RWD Sport Package and the AWD Sport (appearance) Package.

So yeah, 2013 was the last year you could buy an Infiniti with a 6MT. End of an era, I suppose.

 

Long overdue, MAF and throttle body cleaning!

 

Went to the junkyard on Monday and grabbed an upper and lower intake manifold, throttle bodies, and a homelink mirror with compass because $5.

Going to clean up /smooth the TBs and sell the upper intake mani. The lower - I'm thinking I can make the VQ35HR upper fit by filling the bolt holes and redrilling them, rather than slotting the manifold holes. PITA to do on the car. Pittance to do in the garage with a drill press and tap/die set.Bonus is no need for top plate.

 

Take plenty of pictures...

 

Isn't that essentially the Z1 upper IM? Don't they take a UIM from a VQ35HR, bolt on an adapter plate and call it a day?

 

That's what my research has shown. For $600 or so. Not that it isn't worth it, but that's also a set of HFCs, so...

Since I grabbed a spare lower intake manifold from the salvage yard ($20) I'd rather fill and re-drill bolt holes in the lower; aluminum is easy to work with and if I crack a mounting boss I can have it welded back up and reinforced by a friend with the proper TIG gear. And if it totally doesn't work, I've got my original LIM and can mod the VQ35 upper as in threads here.

However, I'd rather mod the aluminum, as opposed to grinding fragile plastic and risking cracking or breaking a $100 UIM, and then machining a top spacer plate so the bolt heads aren't at an angle to the plate, and then spending $50 at Maryland Metrics to get the right longer bolts.

Maybe as I'm coming from rotaries, I'm more used to making my own stuff than getting off-the-shelf. There is certainly a breakeven point of "is it worth my time to do". For example, I'll not be building an exhaust at home - for one thing, I don't have access to a lift or portable TIG gear any more, and making custom exhausts for my Jeep or RX7 isn't quite the challenge as it would be for the Infiniti. But relocating bolt holes? That's easy, and there's enough slop in the metal UIM bolt bosses that drill press accuracy is fine (as opposed to a milling machine). I did a lot of manifold and adapter rework when I was converting old RX7s from 4-bbl carbs to fuel injection. It was surprisingly easier than I had imagined, especially with JB weld and TIG access.

 

There's pretty mixed opinions about using the Z1 UIM. Some people swear on their mother's grave, and wave dyno sheets at you. I suspect the best gains to be had (if at all) are with a tune and a long-tube CAI.

 

I imagine there is a slight difference due to the different resonance frequency of the longer runners, but I doubt it amounts to much without a tune.

Hence my hesitancy to spend $600 on it. $150... sure. And that is assuming I buy a VQ35 UIM off ebay for going prices and not a the local pick-n-pull for $20.

Idea is to get manifold set up, clean up throttle bodies, long tube intake, FI HFCs and exhaust, and *then* get a tune. None of that should make the car dangerously rich or lean, and seems like maybe 50HP or so total for all mods after the tune. Not bad for NA, and might keep me happy for a few years without going turbo.

My buddy and I talked about getting the heads off that motor and doing a multiangle valve job and some porting - but lots of work to make each port flow evenly, and with VVEL doesn't seem to net much gains. There is only so far I'm willing to pursue NA power. Honestly, only so far I need to go... main reason for the catback is the darn car is too quiet, not the potential power (don't tell my wife that). Seems like modern manufacturing tolerances moot much of the benefits of the porting and polishing jobs of the past.