2001 Viper GTS Dyno Pull with minor bolt-ons :) (vid+pic of results)---

[alwayscode390]

Dyno Sheet:

You must be registered for see images attach

Video of the pull:

http://www.youtube.com/watch?v=CS8SnShSors&list=HL1341853622&feature=mh_lolz

I just got this car 3 weeks ago ... and decided I should get a Dyno Pull going so I can make sure its running well with the few modifications that I have found on it. I bought it from a dealer that said it was "stock minus the wheels" HAHAH.

Mods:

*Smooth Tubes
*Full Corsa 3" exhaust with High Flow Cats
*3.73 Rear Gears
*Dyno Tune
*20" HRE Wheels with 345/25/20 tires

It was 94 Degrees in the room ... OUCH!!!

Results were 425 hp / 460 tq @ the WHEELS, which is about 500 hp / 540 tq @ the ENGINE.

A/F Average was 12.27 ... is that pretty typical and normal (SAFE?) for a Naturally Aspirated Engine?

A/F Ratios seems constant, the runs were consistant, and I got the power I was HOPING for ... so I am a happy camper.

What type of 1/4 mile times should I be able to see with this kind of power? Is it enough that on a perfect run I can dip into the 11's? ( 11.99? ).

It lopes pretty good ... are they like that stock? Could it be the tune ... or maybe a cam? I can post a vid of it idling if that would help ... or would it put out more power if it was a cam upgrade?

Thanks for the comments and for looking!!! ---

 

[alwayscode390]

Im thinking I am losing a few horspower /torque numbers with the 20" wheels, the 3.73 gears, and the heat ... but considering all those things I am still pushing respectable numbers, right? ---

 

[ericj96]

I am shocked no one has replied to your post.

2001 vipers on average pull about 405-410 RWHP bone stock and 435-450 RWT.

Your mods list is
Smooth tubes (and filter I assume) = 6-10 RWHP
Cat Back Exahust 10-15 RWHP
No Cats is about 7-10 RWHP but you list high flow cats so about 4-6 RWHP is typical.
Tune is is worth none to a great deal depending on how close your timing and A/F was to perefect to start with. 12.25 AF is OK. 12.5-13.0 is better if you want every little bit of HP out of your motor.

Your gears net out about 13% higher than stock ratio when you count tire diameter and gears as a whole. You are down on the dyno some as a result but its not much maybe 5 RWHP.

My best guess after performing all the mods you have listed on my car less the gears is:

Base = 405
tubes & flilters = 8
cat back = 12
HF cats = 4
Total should be about 405+ 8 + 12+ 4 = 429 rwhp less some loss for gears makes 425 about right.


Your car is pulling to its full potential so your tune must be pretty good as is.

Best Wishes

 

[plumcrazy]

with the wheels and gears, its a strong number

 

[Zentenk]

Saw this vid while going through Youtube, good stuff.

Got anything planned for it? You could get to 11's with a good run... I almost made it to 11's with K&N and straight pipes (no cat/muffler).

 

[Roysviper]

My BONE STOCK 1997 GTS dynoed 423 rwhp and 469 rwtq......as it came from the factory......it only ran 7.80s 1/8 mi with a 1.90 60' and 12.29 1/4 mi with the factory Michlins.....with some slicks I am sure it would have busted the high 11s....but I never raced it with slicks.....I raced it as it came of the showroom floor. I had that viper the longest ever....I had it seven years....raced it a lot at the track......NEVER broke anything....drive there...drive home and put almost 60,000 mi on it and did nothing but change the oil every 3000 mi and had a blast with it.....when I sold it it still looked new and no one could believe it had that many miles on it or that it was as old as a 1997....... ENJOY your Viper....take care of it and it will take care of you.....but that stock horsepower Viper will get away from you in a New York minute.....RESPECT it......put some M/T street radials on it and it will run high 11s with no problem yet be 100 % street drivable.......

Dyno Sheet:

You must be registered for see images attach

Video of the pull:

http://www.youtube.com/watch?v=CS8SnShSors&list=HL1341853622&feature=mh_lolz

I just got this car 3 weeks ago ... and decided I should get a Dyno Pull going so I can make sure its running well with the few modifications that I have found on it. I bought it from a dealer that said it was "stock minus the wheels" HAHAH.

Mods:

*Smooth Tubes
*Full Corsa 3" exhaust with High Flow Cats
*3.73 Rear Gears
*Dyno Tune
*20" HRE Wheels with 345/25/20 tires

It was 94 Degrees in the room ... OUCH!!!

Results were 425 hp / 460 tq @ the WHEELS, which is about 500 hp / 540 tq @ the ENGINE.

A/F Average was 12.27 ... is that pretty typical and normal (SAFE?) for a Naturally Aspirated Engine?

A/F Ratios seems constant, the runs were consistant, and I got the power I was HOPING for ... so I am a happy camper.

What type of 1/4 mile times should I be able to see with this kind of power? Is it enough that on a perfect run I can dip into the 11's? ( 11.99? ).

It lopes pretty good ... are they like that stock? Could it be the tune ... or maybe a cam? I can post a vid of it idling if that would help ... or would it put out more power if it was a cam upgrade?

Thanks for the comments and for looking!!! ---