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340Whp & @260TQ NISMO

Has anyone checked this out yet? 340 to the wheels using only Stilled products and UpRev to tuen it... Dyno-Comp - Blog

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Old 03-12-2012, 11:58 AM   #1 (permalink)
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Default 340Whp & @260TQ NISMO

Has anyone checked this out yet?
340 to the wheels using only Stilled products and UpRev to tuen it...

Dyno-Comp - Blog
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Old 03-12-2012, 12:06 PM   #2 (permalink)
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Quote:
Bone Stock: 2010 Nissan 370z Nismo
REAL WORLD this is what a 2010 Nissan 370z Nismo puts down for power..
292 (Wheel HP) x 1.25 = 365 at the flywheel.
230 (Wheel TQ) x 1.25 = 288 at the flywheel.
These numbers were taken from a stock car and may vary.
HP is now at 340 (at the wheels) which equates out to about 425 HP at the flywheel.
TQ is now at 260 (at the wheels) which is approx 325 TQ at the flywheel.
At the end of the day what does all this mean…
+60 HP increase at the flywheel.
+37 TQ increase at the flywheel.
At least they admit the skew
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Old 03-12-2012, 12:21 PM   #3 (permalink)
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Quote:
Bone Stock: 2010 Nissan 370z Nismo
REAL WORLD this is what a 2010 Nissan 370z Nismo puts down for power..
292 (Wheel HP) x 1.25 = 365 at the flywheel.230 (Wheel TQ) x 1.25 = 288 at the flywheel.
These numbers were taken from a stock car and may vary.
HP is now at 340 (at the wheels) which equates out to about 425 HP at the flywheel.
TQ is now at 260 (at the wheels) which is approx 325 TQ at the flywheel.
At the end of the day what does all this mean…
+60 HP increase at the flywheel.
+37 TQ increase at the flywheel.
I thought the NISMO was rated at the 350 mark, or am I missing something?
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Old 03-12-2012, 12:23 PM   #4 (permalink)
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Originally Posted by Spikuh View Post
I thought the NISMO was rated at the 350 mark, or am I missing something?
The dyno reads high
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Old 03-12-2012, 12:24 PM   #5 (permalink)
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Very generous dyno. I'd like to see some trap speeds of this 350hp beast.
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Old 03-12-2012, 12:25 PM   #6 (permalink)
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I have one question.. Why are they multiplying the WHP by 1.25 to estimate the crank HP?

Isn't the drivetrain loss in manual Z's estimated at around 17%-18%..?? I think 25% is a bit high..
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Old 03-12-2012, 12:36 PM   #7 (permalink)
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Originally Posted by pty370z View Post
I have one question.. Why are they multiplying the WHP by 1.25 to estimate the crank HP?
Isn't the drivetrain loss in manual Z's estimated at around 17%-18%..?? I think 25% is a bit high..
This is pretty much my next question. Why 1.25? Where are they getting it from?

Instead of:

Quote:
292 (Wheel HP) x 1.25 = 365 at the flywheel.
230 (Wheel TQ) x 1.25 = 288 at the flywheel.
Shouldn't it be:

292whp x 1.20 = ~350hp
230wtq x 1.20 = ~276tq

Then using that 1.20 to finish out, their final numbers would be:

340whp x 1.20 = 408hp
260wtq x 1.20 = 312tq

Is this the wrong approach?
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Old 03-12-2012, 12:37 PM   #8 (permalink)
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Quote:
Originally Posted by pty370z View Post
I have one question.. Why are they multiplying the WHP by 1.25 to estimate the crank HP?

Isn't the drivetrain loss in manual Z's estimated at around 17%-18%..?? I think 25% is a bit high..
Because nothing is better than a horsepower circle jerk
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Old 03-12-2012, 12:47 PM   #9 (permalink)
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Why is a NISMO with the same mods of a 370z much higher in WHP? Wouldnt they be both around the same power but they are both with the same mods?
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Old 03-12-2012, 12:48 PM   #10 (permalink)
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EH waste of $$$ if you ask me,, I made 298 WHP and 240 WTRQ, Stock headers and stock cats in a 7spd X coupe. For 40 WHP. Stillen's dyno is very generous at best, Their" 515HP SC kit" made 440HP( 365 WHP) before I was tuned. Stillen dyno= INFLATED..
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Old 03-12-2012, 12:50 PM   #11 (permalink)
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Originally Posted by jezeka777 View Post
Why is a NISMO with the same mods of a 370z much higher in WHP? Wouldnt they be both around the same power but they are both with the same mods?
I think they cooked the books on this one.
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Old 03-12-2012, 12:50 PM   #12 (permalink)
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Quote:
Originally Posted by ANMVQ View Post
EH waste of $$$ if you ask me,, I made 298 WHP and 240 WTRQ, Stock headers and stock cats in a 7spd X coupe. For 40 WHP. Stillen's dyno is very generous at best, Their" 515HP SC kit" made 440HP( 365 WHP) before I was tuned. Stillen dyno= INFLATED..

I wish my bank account could do the same.. lol .... thanks for the reply


BTW: How are you liking the Stillen SC? Ive been wanting to get one but every one has been telling me to go TT.. Do you feel alot of power and can you upgrade to higher boost?

Last edited by jezeka777; 03-12-2012 at 12:55 PM.
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Old 03-12-2012, 12:54 PM   #13 (permalink)
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lol...........that would be nice as well!
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Old 03-12-2012, 01:01 PM   #14 (permalink)
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Quote:
Originally Posted by jezeka777 View Post
I wish my bank account could do the same.. lol .... thanks for the reply


BTW: How are you liking the Stillen SC? Ive been wanting to get one but every one has been telling me to go TT.. Do you feel alot of power and can you upgrade to higher boost?
I'm loving the kit, The car is a complete animal, Ripped on the HW on Saturday and hit 142 MPH in 5th( With lots of room left).( Yes HW was very clear) Me and one other car..I can up the boost with just a pulley change and return, But for me it us more than enough,, LOL for now, I'm looking into the GTR's pistions and rods.
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Old 03-12-2012, 01:09 PM   #15 (permalink)
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Quote:
Originally Posted by Spikuh View Post
This is pretty much my next question. Why 1.25? Where are they getting it from?

Instead of:



Shouldn't it be:

292whp x 1.20 = ~350hp
230wtq x 1.20 = ~276tq

Then using that 1.20 to finish out, their final numbers would be:

340whp x 1.20 = 408hp
260wtq x 1.20 = 312tq

Is this the wrong approach?
I think that's right and closer to the truth.

350hp (per Nissan)/292whp (dyno)= x(approx. hp @ flywheel)/340whp (dyno)
x=407.53 hp @ the crank.

Still pretty good numbers even if the dyno reads high. You can inflate the numbers, but you should only be looking at the difference from the baseline anyways. My understanding was, that the 48whp increase from baseline is more important than the actual hp reading on the dyno.

This a link on there for determining the numbers they used.
http://dyno-comp.com/tuning.php#dyno101

Seems kind of odd. It would mean most stock non-Nismo's should have numbers closer to 345hp at the flywheel.
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Last edited by Cmike2780; 03-12-2012 at 01:17 PM.
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