i dynoed my car today on a dynojet while my friends bolt on mustang got 298 wheel hp my 2006 rev-up 350z got 215 wheel hp my mods are hks hi-power/motordyne 5/16th isothermal/ ur pully set which squeak like crazy on start up!!!! aem cold air intake/ central 20 3.9 fd the reason why i did a dyno on my car today was becuase the best i ran at LACR was a 15.00.............which makes me feel as if i should stop waisting my money and sell the 350z do i need a tune????? i was running at a 17.5 air fuel ratio

 

Definitely need a tune.

Though, the 350z really isn't the best platform for making a high-acceleration car. A mustang would be better for the 1/4th mile and such ... though, the 350z would totally own on the twisties...

 

I've never seen any car hit 17.5 on a dyno... I would question whether the dyno's sniffer was calibrated properly....

 

What 15 flat? Dont have a Z but isnt that slow by standards? **** make me not want one... Aww

 

Lots of ET's posted in the drag racing forum... plenty of people with low 13's with bolt ons

 

... 215whp? thats pretty horrible... what happened to your car?

 

15s with a 3.9 FD and 215 whp? there is something wrong there. May be your screen name has something to do with it .

 

Sell me your 3.9!!!

 

um well at the same day a 2006 mustang gt with Exhaust intake test pipes did a 15.6 constant also a cayman barely pulled a 14.6 while on the way home i pulled on him no problem with my top down..........i dont know im confused..... if i cant get me whp up near 260 im not going to waiste my money on the emange and cams with headers and test pipes i can sell all these parts and buy a small hatch civic...... and do a motor swap for almost the price of mods i have in my car anyone give me your opinion i really want to solve this problem...

 

A dyno sheet would be helpful.

 

A time slip would be helpful.

 

I ran a a 14.9 at 98 mph 3900 ft above sea level. If your running a 15.0 at lower than that you need a tune. If your running lean the stock ecu will pull timing out like there is no end in sight.

 

did you ever get this looked at?

 

no im expecting about 2000 dollar price tag with utec and a tune....also i want to either get cams or a nos set up

 

If you don't want your 3.9 i'll take it off your hands for a good price. Let me know.

 

Dude get that sorted out, of all the Z33 I have seen on the dyno, none of them have ever been that lean. They usually have rich AFRs from the factory.
This engine is like begging to be boosted at the AFRs I usually see. What is more shocking is a the 215whp you managed to make on a DJ of all dynos wow.

Lastly I have seen AFRs leaner than 17.5:1 on a dyno. Saw it first hand when I attended a tuning class, it was demonstrated.

 

Damn that is pretty steep for the tune and the UTEC...ohh yeah its California.

 

You need not post BS like that and get everyone all worked up. Your dyno chart probably highlighted or stated the highest AFR it saw. That means, your car may have been at 17.5 at the very moment it started recording. Post the dyno sheets and I am sure you were somewhere well below 17.5 during the 'meat' of the run.

 

2000 is steep?

The utec is around a grand + a couple hrs of labor to install + dyno tune session. Seems about right to me.

 

A couple of hrs of labor to install? well that is if I am sipping on a beer and smoking my hookah while I do the install perhaps. Guess I am under charging then...thanks for the heads up!