So our local club rented out a dynojet, whose load I have to say was pretty harsh, the numbers came in pretty low but once compared to the others, I was pretty satisfied! The dyno owner said it had to do with the crazy temperature & humidity but does that make this huge of a difference?

And on I went:

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I was sent the dyno run files but for some reason, I couldn't get the rpm readings on the x-axis, it was only showing speed in mph. So you'll have to multiply that by 46.17 to convert it to engine speed in rpm. (Excuse the ghetto-ness)

The gay thing I noticed about 5AT's, is that even when on manual mode, the ECU won't let your rev past around 7000 on 4th and will automatically shift into 5th

Well enough with the blabbering, let's get to business



There are three graphs, each for a different G37. I thought It'd be interesting to combine them (I know, different cars, different readings bla bla). All dyno runs were conducted on the gear whose ratio is 1:1.

Now, the lowermost brown graph is for a G37 with an HKS Intake.

The one right above it in bold red, is for a G37 with Stillen Gen 2 Intakes, UR Crank Pulley, Stillen Headers, GTM Test Pipes & Magnaflow Exhaust

And the one just above it in blue is mine, Stillen Gen 3 Intakes, UR Crank Pulley, FI Test Pipes & FI CF Catback

Still 250whp is heart-braking lol.

Other Cars:
- DE 350Z with intake & exhaust dyno'ed at around 200whp!
- (Previous Gen) Lumina SS Coupe with Full Exhaust & Intake dyno'ed at 312whp
- Lumina CR8 with catback dyno'ed at 336 whp
- Lumina SS with LS7 engine swap, intake & full exhaust dyno'd at 502 whp!

 

niiice! thats what a dyno is for, comparison tool.. now you see the differences! cars looking good btw!

 

Thanks man.. I just found out I was ripped off btw, those DRF files from the dynojet do not contain any torque readings lol And the A/F map is reading 15 don't know how true that is

 

damn that is heartbreaking, that reading is worse than that of a mustang dyno lol 250whp for catback, CAI, pulley, and testpipes? =p

 

15 is waaay lean...you need a tune pronto!

 

I think it's a dyno reading error. There's noway your ECU would let you run an air fuel of 15, maybe at idle (most people run 14.2 - 14.7), but not at WOT. Those are also some really low numbers for a dynojet too. I would have thought you would have made atleast 280whp.

I have somewhat similar mods and when I ran the stock map on my cobb a/p I was still running 12.2 - 12.4 A/F at WOT, so why would my ECU compensate, but not your's?

 

Wow, surprising numbers. I made 258 on a mustang aka hearbreaker dyno and that was just with tanabes, y pipe, and injen sri. Maybe the temp and humidity did make a big difference??

 

AF sensor was probably not in if it is reading a flat line.

Absolute numbers mean crap. All that matters is the % gain

 

Wow.... talk about hot... 105 is some nasty heat.

 

Whats a Lumina? Is it that ugly 4dr like here in the US, that thing put up some numbers thought LOL

 

Wow, those numbers make me sad ;[ I think a Lumina is a family sedan?

 

For those of you who haven't heard of a lumina before here it is:



Yeah turns out the A/F sensor wasn't hooked up lol

 

damn 250 is tough...


when people ask I still tell them it has 330 hp lol

 

looks good sam.

anyone who complains about hp #s is a noob. all a dyno is good for is comparing before/afters with mods and bragging. track times, driving ability, etc are where its really at.

 

haha funny you mention that, my friend with a 6MT HR Z been bragging all day about pushing down 249 whp on that same dyno even though he dyno'd on 4th lol