Has anyone seen a stock 6MT and 5AT Coupe dyno graph? I don't have time to search so I am just asking?

Also, from many experienced dyno guys that I have been to or know...1.15 is your most accurate MT multiplier and 1.22 is your most accurate AT multiplier...not 1.16 of 1.18...so if you take out his 2 minor mods and put his base line back to say 226-230 he is right at the 260-265 BHP mark vs. 270+...

John
03.5 G35 5AT 14.2 @ 96
7 Wire Grounding Kit
K&N CAI w/Injen Heat Shield
UR UD Crank Pulley
NISMO Mid Pipe
Crawford V 5.0
02 Maxima SE 4AT 14.5 @ 95 (Wife's)
87 Mustang GT 13.2 @ 107

 

Has anyone had their G35 5AT Sedan with just a Z tube and K&N drop-in filter (or just the Z tube/ & stock filter) dynoed, and if so what were the results? I'm still wondering what if any extra HP the Z tube really adds. Either way, it certainly sounds faster!!!! ;-) Thx.



2004.5 G35-S 5AT Black/Willow - Prem, R. Spoiler, Navi, Infiniti Sport Wheels, Alum Pedals, Dark Tint, Z Tube, K&N Filter

 

Yes I had a total of 2 pulls, both are identical. The Air/Fuel part of the 2nd one got screwed up though. But the dyno part was exactly the same.

Also considering the measurement was read after the cat at the muffler for the air/fuel it wasn't that accurate either.

Here is a picture of my spark plug to show I haven't been running that lean. The car is basically stock and has no reason to be running lean anyways. You guys can guess what bank its out of?



2004 Infiniti G35S, 6MT, Premium, Sport, DP
Mods: JDM Clears, 20% tint, Z-tube, K&N Drop In
Track: 14.32 at 98.79 mph 2.2032 60ft
Dyno 07-07-04 - 234.2 hp & 233.8 tq
http://www.g35world.com

 

I am no mathematician but just adding the drivetrain loss percentage to the wheel HP will not give you an accurate flywheel HP number.

Stock motor:

260 FWHP minus 15% drivetrain loss equals 221 RWHP

221RWHP plus 15% (or X 1.15) equals 254.15 FWHP (not 260)



G35_TX’s motor

234.2 divided by .85 (the reciprocal of the drivetrain loss) = 275.5

To check this…

275.5 FWHP -15% = 234.2


*'03.5 MT6 Sedan, Premium, CB*

*'00 Saleen S281-SC* http://members.cardomain.com/headpaneer

 

Short version:

You take 15% off a starting number of 260 (i.e. multiply by 0.85) to get 221wheel hp. To calculate crank hp from wheel hp, you need to divide by 0.85, not add 15% (i.e multiply by 1.15).

Gurgen