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Heffner Performance Viper TT - Part II

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Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:24 AM   #1
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Heffner Performance Viper TT - Part II

We didn't get on the dyno until fairly late last night, so the results are not optimal but at least we fixed my ignition problem. [img]/images/graemlins/smiles[/img]

Boost set to 17psi, AFR 10.8:1, and very conservative ignition timing.

Next week is another week! [img]/images/graemlins/wink[/img]

BTW, for those who initially were inquiring about the hard torque peak, I toned down the ignition timing and smooothed out the graph.
[image]http://home.comcast.net/~two1bar/927dyno.jpg[/image]
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:26 AM   #2
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Re: Heffner Performance Viper TT - Part II

Damn - that is some serious low end power.
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:28 AM   #3
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Re: Heffner Performance Viper TT - Part II

Thanks Anthony. The drop off after 5600rpm was my error in the fuel map where the AFR took off downward.
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:28 AM   #4
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Re: Heffner Performance Viper TT - Part II

i think what people are forgetting is the fact that this car is 100% stock!

that is just sick....
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:36 AM   #5
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Re: Heffner Performance Viper TT - Part II

Quote:
Originally Posted by RedSnakeGTS
i think what people are forgetting is the fact that this car is 100% stock!

that is just sick....
RedSnake = old news

IBRedSnakecallingGary
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:38 AM   #6
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Re: Heffner Performance Viper TT - Part II

Redsnake is the "new oldness."
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:40 AM   #7
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Re: Heffner Performance Viper TT - Part II

Quote:
Originally Posted by Anthony - 98 GTS
Quote:
Originally Posted by RedSnakeGTS
i think what people are forgetting is the fact that this car is 100% stock!

that is just sick....
RedSnake = old news

IBRedSnakecallingGary
reliable, fast, TWIN TURBO CAR is old news?

does your spray even work?

[scroll][/scroll]
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:44 AM   #8
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Re: Heffner Performance Viper TT - Part II

No doubt Eric's car has it in there (most likely more), whether he wants to unleash it and advertise it is whole another aspect! :thumb:

But lets get real here, all this power is just dyno bragging rights. Anything past 12psi on a Heffner turbo car is just asking to visit a ditch! [img]/images/graemlins/toothy[/img]
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 11:48 AM   #9
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Re: Heffner Performance Viper TT - Part II

Quote:
Originally Posted by Viper TT
No doubt Eric's car has it in there (most likely more), whether he wants to unleash it and advertise it is whole another aspect! :thumb:

But lets get real here, all this power is just dyno bragging rights. Anything
past 12psi on a Heffner turbo car is just asking to visit a ditch! [img]/images/graemlins/toothy[/img]
Sal, you have to realize that Anthony hasnt ever driven a fast car. he doesnt know what 800 rwhp and 900+ rwtq feels like....
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 12:18 PM   #10
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Re: Heffner Performance Viper TT - Part II

Very nice numbers Sal P., Jason and TM. It should get real interesting once these big power dyno cars start going to the track.
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 07:51 PM   #11
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Re: Heffner Performance Viper TT - Part II

Sal, nice job on the subsequent tuning! It is incredible that a stock motor can do so much! The AEM must be fantastic! GOod luck and, like you said, next week is another week!
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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 09:19 PM   #12
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Re: Heffner Performance Viper TT - Part II

Looks like it's time for me to raise the BOOST [img]/images/graemlins/dude3[/img]! 12 PSI is starting to get boring [image]http://www.revxtreme.com/forums/images/smilies/boink.gif[/image] .

Great #'s SAL !



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Re: Heffner Performance Viper TT - Part II
Old July 9th, 2004, 10:09 PM   #13
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Re: Heffner Performance Viper TT - Part II

Quote:
Originally Posted by Viper TT
Thanks Anthony. The drop off after 5600rpm was my error in the fuel map where the AFR took off downward.


the roughness of the curves at the end are directly related to air/fuel???


How does timing affect the curve at the upper rpm's?


Thanks
John
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Re: Heffner Performance Viper TT - Part II
Old July 10th, 2004, 01:56 PM   #14
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Re: Heffner Performance Viper TT - Part II

ungodly [img]/images/graemlins/toothy[/img]
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Re: Heffner Performance Viper TT - Part II
Old July 13th, 2004, 08:19 AM   #15
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Re: Heffner Performance Viper TT - Part II

Sal,

I'm back in town for a couple of days. I can't wait to check that monster out! Congratulations!
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