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Peak hp at 7250 rpm

My car has been on a dyno twice and both times peak power was around 7250 rpm. This is somrwhat confusing or maybe i havent seen enough other 370s dyno

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Old 07-02-2014, 12:45 PM   #1 (permalink)
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Default Peak hp at 7250 rpm

My car has been on a dyno twice and both times peak power was around 7250 rpm.

This is somrwhat confusing or maybe i havent seen enough other 370s dyno charts but others seem to make power up to 7500 at least.

Is the motordyne m370 causing this?

Car runs great this is just curiosity and confusion
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Old 07-02-2014, 01:29 PM   #2 (permalink)
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Base models make peak power around 7k rpm. But if you see, it's nearly flatline from 6500 till 7500. You might have a couple mods that pushed your power up at higher rpm. The M370 will reduce top end power by a couple hp.

Nismos reach peak power at 7400rpm, most likely due to a better breathing exhaust
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Old 07-02-2014, 01:50 PM   #3 (permalink)
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Normal. Check the rating from Nissan, they post the peak HP @ a certain RPM
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Old 07-02-2014, 02:11 PM   #4 (permalink)
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As long as the power doesn't drop off considerably after 7250 I wouldn't be concerned at all.
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Old 07-02-2014, 02:14 PM   #5 (permalink)
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Non-nismo makes 332@7,000RPM
Nismo makes 350@7,400RPM

Those are the factor specs
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Old 07-02-2014, 02:53 PM   #6 (permalink)
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Mine made its peak hp at 7343 after the tune and 7323 before it was tuned. (with the cat back and CAI) So I would say you are about normal.
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Old 07-02-2014, 03:43 PM   #7 (permalink)
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Indeed. I have new knowledge. Thanks
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Old 07-03-2014, 12:56 AM   #8 (permalink)
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My graph also shows peak around 7100-7200
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Old 07-05-2014, 07:16 AM   #9 (permalink)
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Check this out, my 7at shift from 1-2 at 7625 rpms fall to 5950.

1-2 gear shift at 7230 rpms fall to only 6300. My 1/4 trap was 1 mph faster.

Lol.... gonna stop watching replays

i still have the videos showing this i believe

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Old 07-05-2014, 02:06 PM   #10 (permalink)
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Quote:
Originally Posted by TheBoomSpoon View Post
Check this out, my 7at shift from 1-2 at 7625 rpms fall to 5950.

1-2 gear shift at 7230 rpms fall to only 6300. My 1/4 trap was 1 mph faster.

Lol.... gonna stop watching replays

i still have the videos showing this i believe
I wanna see. This doesn't look right
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Old 07-05-2014, 02:13 PM   #11 (permalink)
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Quote:
Originally Posted by DEpointfive0 View Post
I wanna see. This doesn't look right
Sit tight. Getting it uploaded..
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Old 07-05-2014, 02:53 PM   #12 (permalink)
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Here is the weirdness as i cut and slow mo'd it. Im no video mogul but you can trll its different anf better shifting 1-2 at 7250 at least on mine it seems

370z 7at weird shift: http://youtu.be/4H8nQGK5mlo
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Old 07-05-2014, 03:12 PM   #13 (permalink)
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is that AFR accurate? if so you are running dangerously lean
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Old 07-05-2014, 03:16 PM   #14 (permalink)
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Quote:
Originally Posted by Super Werty View Post
is that AFR accurate? if so you are running dangerously lean
Im using AFR (measured) ftom torque and i believe so because prior tune was around 12.7 or so during WOT and with this tune it obviously a little higher.

I swear though if i have to get a retune im driving 900 miles to z1 to get it
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Old 07-09-2014, 02:36 PM   #15 (permalink)
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Quote:
Originally Posted by Super Werty View Post
is that AFR accurate? if so you are running dangerously lean
Hmmn this seems to support your statement. I am now worried.

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