Dynod the Viper today...

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
After 3K miles I was rather bored with the performance so we did this as a sanity check just to make sure it wasn't down on power before I put in a 3.55 differential. Seems that it is producing fine power, so gears are going in.

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Viper GTS
 

skyking

Lifer
Nov 21, 2001
22,543
5,589
146
4-anything is nice! I've got a much crappier cellphone cap of my last dyno run in the 3 -somethings :D
 

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
They're sending me the real thing but that's what I have for now...

I was pleasantly surprised. The seller advertised it as 500 HP when I bought it (a few simple bolt on mods - pulleys, etc.). Seems that is likely fairly accurate.

Viper GTS
 

skyking

Lifer
Nov 21, 2001
22,543
5,589
146
the dyno I used was very flaky, we tried to print and it would crash the computer. Shop needs to spend some money on it :(
Nice to see some displacement with torque above the HP. Proper.
 

alkalinetaupehat

Senior member
Mar 3, 2008
839
0
0
510hp/545ft-lbs @ the crank...damn. I can only dream to put down those numbers one day.

Any other mods planned?
 

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
Assuming the gears give it the grin factor I'm looking for that should be the end of the line. If I have a desire for something with more power I'll buy someone else's project and let them take the depreciation hit. Gears are (I'm hoping) a cheap solution to this particular problem.

Viper GTS
 

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
What's the corrected power?

Don't know. Mid 50's this afternoon so probably fairly good conditions for the run. Maybe they can give me corrected numbers when they send me the results, all I had was what was on the monitor.

Viper GTS
 

RiDE

Platinum Member
Jul 8, 2004
2,139
0
76
Assuming the gears give it the grin factor I'm looking for that should be the end of the line. If I have a desire for something with more power I'll buy someone else's project and let them take the depreciation hit. Gears are (I'm hoping) a cheap solution to this particular problem.

Viper GTS

Damn... i wish i had your 'problem'. :p
 

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
I'm curious why you felt bored with the performance.

It just didn't feel as fun as 500 HP should. I mean its a quick car for sure but I just expected more. I really expected to be able to induce wheelspin essentially at will in 1st gear but it won't spin the tires at all from a roll. I can toss my mustang and throttle steer easily, this just won't do it with the factory 3.07 gearing.

Viper GTS
 

HarryLui

Golden Member
Aug 31, 2001
1,518
33
91
It just didn't feel as fun as 500 HP should. I mean its a quick car for sure but I just expected more. I really expected to be able to induce wheelspin essentially at will in 1st gear but it won't spin the tires at all from a roll. I can toss my mustang and throttle steer easily, this just won't do it with the factory 3.07 gearing.

Viper GTS

I wish I had that traction "problem".

My traction goes away as soon as I hit over 15psi on first or second gear.
 
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DaTT

Garage Moderator
Moderator
Feb 13, 2003
13,295
118
106
I am putting 4:10's in my Mustang (up from 3:55), to try and get the WOW factor back. I hope it works for both of us.
 

brainhulk

Diamond Member
Sep 14, 2007
9,376
454
126
i know this might be stating the obvious but I have to ask, is there a button to disable traction control? because I can't fathom 500hp not being able to light up the tires.

either that, or you have some super sticky and fat tires
 

manimal

Lifer
Mar 30, 2007
13,559
8
0
Great numbers! Still drool everytime I see a picture of your car!!


Also was drooling at the dyno room. I hope mine turns out that nice when we get around to building it.
 

j&j

Senior member
Oct 10, 2011
246
0
0
Uncorrected numbers, SAE corrected you'll probably be 3-5% below that. great choice on the gears, that stupid factory gearing kills me in the vipers
 

Zenmervolt

Elite member
Oct 22, 2000
24,512
22
81
Absolutely beautiful torque curve.

Are you ever getting up to Seattle again?

ZV
 

melchoir

Senior member
Nov 3, 2002
761
1
0
Embrace your traction. My little 2011 5.0 with a blower on it doesn't get traction from a 50 hit on the stock tires. With DRs it's been 10s already but I'd love to have some street-ish tires that moderately hook.