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Guess WHP?next week dyno

7K views 23 replies 10 participants last post by  Z You Later 
#1 ·
Hi guys I have a 350z 2004 model with some bolt-ons :nismo exhaust,megan test pipes ,nismo headers ,k&n drop in air filter ,5/16 plenum spacer
,JWT plate & flywheel and the turboXS UTEC .

So what do you think I m able to achieve 280-290 whp with good tuning ??

The problem right now is that with stock Z i m not far enough 1-1/2 car front
whats your opinion about that ??

I m going next week for tuning the UTEC
 
#2 ·
245 to 250 whp. If your tuner says more than that, he's fudging the numbers. I'm hoping for 280whp and I have every bolt-on plus JWT S7 cams on an '06 Rev-Up.
 
#4 ·
-Confused- it says 287 bhp. so thats just engine HP not to the wheels?. how much torque does the Z have then?.

I have a JWT popcharger, Motordyne 5/16 plenum spacer, kinetix high flow cats, XO2 true dual exhaust.. so that means im prolly pushing 230 hp to the wheels and 310ish to just the motor??.
 
#5 ·
ok 245-250 its good numbers but I have seen other Z 's achieve more than 250 with the same mods or less
C this:
1)http://www.youtube.com/watch?v=Xb59cPldECo
2)http://www.youtube.com/watch?v=rBUXuvgcPCs&feature=related
3)http://www.youtube.com/watch?v=vwoZcNdc6fQ&feature=related
4)http://www.youtube.com/watch?v=_Bf9KZTq-Jk&feature=related

I know if i m going to search I will find more dyno charts but all this doesn t mean nothing
Also some of them they have only bolt ons without tuning ecu or UTEC

So I m hoping for better results than 250 what do u say ?
 
#7 ·
I also think it's possible. I got rated in the range of low 240s from different dyno's. I don't have as many mods as your car, either.
 
#9 ·
i'm gonna throw out an exact number, JUST THROWING IT OUT, but i'm gonna say you'll be right at 247 :biggrin:
 
#11 ·
haha...hmmm...a greek sandwich huh?
 
#12 ·
QUOTE (dionic_5 @ Mar 25 2008, 05:11 AM) index.php?act=findpost&pid=510090
ok 245-250 its good numbers but I have seen other Z 's achieve more than 250 with the same mods or less
C this:
1)http://www.youtube.com/watch?v=Xb59cPldECo
2)http://www.youtube.com/watch?v=rBUXuvgcPCs&feature=related
3)http://www.youtube.com/watch?v=vwoZcNdc6fQ&feature=related
4)http://www.youtube.com/watch?v=_Bf9KZTq-Jk&feature=related

I know if i m going to search I will find more dyno charts but all this doesn t mean nothing
Also some of them they have only bolt ons without tuning ecu or UTEC

So I m hoping for better results than 250 what do u say ?

That doesn't mean much. I can video tape me running my car on the dyno and show you a 500 whp chart right now. Doesn't mean I'm actually making 500 whp, though. It's not difficult to mess with the correction factor to get whatever reading I want. Run the car in the 1/4 mile... Your time tells you how well you hooked up and how good a driver you are. Your speed tells you haw much power the car's making. If you can run a 13.7 @ 103 at sea level in a Z, you're right around 250 whp.
 
#14 ·
I made 263whp on a dynojet with almost the same bolt on's as the OP. The difference was I have a Borla TD and had a unichip at the time. Now I have a Utec and I know my power has gone up. My car pulls so much harder in every gear.
 
#18 ·
QUOTE (i8acobra @ Mar 28 2008, 01:31 PM) index.php?act=findpost&pid=511201
I've dynoed from 249 to 281 on different dynos. Bring it to the track.
+1. A dyno only tells you what your car does in one gear. I added an X-pipe muffler to my Borla and noticed an improvement in first through third gear, however my fourth gear pull was the same as before.
 
#21 ·
I achieve 275.3 whp and as you see without tuning it was 253whp the most amazing thing was the torque (watch out in Greece we measure the torque in different units and i dont know how to calculate )
this numbers are from a dynopack
I dont know if this is an accurate dyno i m waitting your posts
 
#22 ·
That's actually 275.3 PS, which is 271.5 HP. Your TQ of 40.4 KgM equals 292 Lb/Ft.

There's definitely something going on with that dyno. VQ motors make significantly less TQ than HP. The resistance must not have been set correctly.

Like I said, take it to the track and tell us what you run, along with what altitude you're at and what the weather conditions were. I can give you a more accurate idea of the power your making with that info.
 
#24 ·
you aren't pushing 271whp with those mods, like cobra said there was something fishy with the dyno...i'd take it to the track and give all numbers with the specs as said above...sorry to say the number isn't correct but i wish it was

edit: BUT if they were true you better unleash that beast of an engine nissan built ya
 
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