Nissan/Infiniti Tech SR20DET? RB26DETT? VQ35DE? What's it all mean? Find out here!

Which Transmission ? C'mon Epstein

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Old Nov 23, 2009 | 01:25 PM
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Originally Posted by LongFellow
It was sarcasm, calm down killer.

LOL, i was calm??

Internetz strew seriousness levels


Thanks for the info Z28, i was thinking numbers should be a bit higher. My buddy with K&N Air Intake, Intake, Exhaust, headers, and tune managed to put down a almost even 410HP 415TQ
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Old Nov 23, 2009 | 01:41 PM
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Originally Posted by tuner1989
LOL, i was calm??

Internetz strew seriousness levels


Thanks for the info Z28, i was thinking numbers should be a bit higher. My buddy with K&N Air Intake, Intake, Exhaust, headers, and tune managed to put down a almost even 410HP 415TQ

With what cam ?
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Old Nov 23, 2009 | 02:02 PM
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Originally Posted by Epstein
Found my spreadsheet....

So with the data you gave me, the MN12, a 3.538, and assuming a 2700 lb car:
Your peak accel in 1st is about 45ft/s^2 or 1.4G, which you'll probably never get without a slick and drag suspension, which means you'll always blow away 1st even though it'll run out to 50mph on your 255. Just for reference, I'd blow away 2nd in my S13 on street R's with 34ft/s^2 accel.

So 1st goes to 50, 2nd to 72, 3rd to 104, 4th to 149, 5th to 177, and 6th to 266mph.
RPMs drop to 5.0k shifting at 7100 in 1-4, with 5th dropping to 6k.
In 6th at 2k you'll be doing 75mph.

In the race sim part, it's still slower than my old 425whp S13, but not by much. That dyno chart has a ton of area under the curve, even though it's about 40whp light.

Can you upload this spreadsheet?
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Old Nov 23, 2009 | 02:08 PM
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Originally Posted by Z28ricer
With what cam ?
Stock
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Old Nov 23, 2009 | 02:12 PM
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Originally Posted by Epstein
Found my spreadsheet....

So with the data you gave me, the MN12, a 3.538, and assuming a 2700 lb car:
Your peak accel in 1st is about 45ft/s^2 or 1.4G, which you'll probably never get without a slick and drag suspension, which means you'll always blow away 1st even though it'll run out to 50mph on your 255. Just for reference, I'd blow away 2nd in my S13 on street R's with 34ft/s^2 accel.

So 1st goes to 50, 2nd to 72, 3rd to 104, 4th to 149, 5th to 177, and 6th to 266mph.
RPMs drop to 5.0k shifting at 7100 in 1-4, with 5th dropping to 6k.
In 6th at 2k you'll be doing 75mph.

In the race sim part, it's still slower than my old 425whp S13, but not by much. That dyno chart has a ton of area under the curve, even though it's about 40whp light.

Thank you

Yeah i'd expect it to be slower than a car with 30-40 rwhp more, but hey its all the torque in the earlier RPM that will make it nice to daily drive, if I run across someone with up to 550 RWHP, the bottle *should* have me covered

Although i'm guessing the weight will probably be more like 2900 or so, complete with me in it.

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Old Nov 23, 2009 | 02:13 PM
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Originally Posted by tuner1989
Stock

No, sorry, please try again.
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Old Nov 23, 2009 | 02:21 PM
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No sorry?
I'm not going to argue or make up lies from a dyno i personally saw take place, as well as the dyno sheet in my face.

I mean if it doesnt agree with you then thats fine but i'm not out to impress anyone with my friends cars stats. Nor am i a liar as anyone who knows me can verify lol, especially about something like this.

I'll see if i can get ahold of him for a picture or video of the dyno but i'm almost positive hes leaving for thanksgiving to see family up north.
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Old Nov 23, 2009 | 02:30 PM
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Originally Posted by tuner1989
No sorry? I'm not going to argue or make up lies from a dyno i personally saw take place, as well as the dyno sheet in my face.

I mean if it doesnt agree with you ok but i'm not out to impress anyone with my friends cars stats. Nor am i a liar as anyone who knows me can verify lol, especially about something like this.
I understand you think somehow its possible, but sorry either the dyno operator setup the thing completely wrong, or something else went wrong, you literally might as well be claiming you witnessed a S14 T28 equipped SR20det put down 410 RWHP also.

The camshaft simply doesnt have enough lift and duration to do the numbers, countless cammed LS1 cars generally put down 390-430 RWHP, with a mild, to healthy cams, your buddys car isnt magical, its also possible someone installed a cam before he got it.
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Old Nov 23, 2009 | 02:35 PM
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Maybe, ill have to pay him a visit now you made my curiosity rise. It sure as hell pulled hard when i drove it, my guess since i know you know more about these engines then me, is that the dyno wasn't calibrated properly.

He bought the GTO from a lady in her 30's original owner, so a aftermarket cam is most likely out of the question.
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Old Nov 23, 2009 | 02:42 PM
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What year gto ? 04's are 5.7 05-06 is the 6.0 LS2, the 05-06, maybe a little closer to what you said, but still not gonna get there without a cam.

Heres another one to compare, 6.0 car, 224/228 cam, ported stuff, full exhaust, 422 rwhp / 414 rwtq.

2005 Pontiac GTO LS2 JBA Headers Dyno Sheet Details - DragTimes.com
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