For the ZR1, headers, tune and CNC throttle body is ~610whp. A pulley with those mods should be close to 700whp.

The GTR will make ~570whp on the stock turbos, maxed out.

 

Here's a dyno video of the alleged Viper Marty is referring to. It's a 2009 model. It made 585 rwhp and 565 rwtq. It has custom built headers (they used my car for their R&D) and an exhaust of my own design and construction. No tuning. There is currently no way to tune the new PCM. However, I have a new "off road" Mopar racing PCM sitting in the box at home waiting to be installed. It tweaks the fuel and timing a bit and should take advantage of the exhaust mods. Under the curve power gains should be substantial and peak power will be over the 600 rwhp mark. Only downside is it requires higher octane fuel than what is readily available at the pump for the best performance. Marty, wanna sell me some race gas??

http://www.youtube.com/watch?v=6K1jt143ddw

 

Hey Atomic,

That car ^^^^ looks familiar !!

It is a very good looking car!

 

Sounds like you had some fun runs MK!

I do regret buying the Porsche over a Viper sometimes... Mainly because of the fact that my car would probably be sitting a Underground getting a big nasty turbo setup built for it... Well I take that back ... it'd actually probably be in my garage with my fabricators building a nasty turbo setup for it

 

They are very fast indeed. I had the chance to run agaisnt Jamie Furman's SRT viper (stock) and the thing trapped 130...right out the box. Later on that day he ran 10's.

http://www.youtube.com/watch?v=BoZlmIyH9HM

 

Keith - Thanks for the video. We will have to schedule the closed track for some runs when you get the tuning done. We are picking up a couple of barrels of race gas tomorrow. What octane do you need. I imagine there will be another order placed yet this summer if you want a barrel. There is a station up on 169 that sells 100 at the pump.

Marty - The grey Viper is sexy. Looks like a dead ringer for the one used on the closed road for educational purposes the other day.

 

Always wanted a Viper. Never had the cajones to drive one though as I heard they can bite hard driven at 9/10's. That'd be great if the newer ones have been made a bit more forgiving on the edge of adhesion.

 

Me too Brad ^^,

I like this new one the best by far, It looks fantastic!

 

I agree they look verrry nice esp. the ACR. Priced one out a few weeks ago but was surprised to see there weren't any promo's or anything for them.

 

Really? I haven't heard that, but you've got to wonder what will happen with Chrysler filing bankruptcy and possibly going under? Anyone else know?

 

There were some crazy incentives back in February when I bought my '09. Normally, SRT vehicles and Viper are excluded but this time everything was included with one exception. Viper ACR. Even so, there were dealers willing to let them go in the low 90's. I wanted one bad but I just couldn't justify paying the premium over my '09 coupe. I already have better brakes and suspension than the ACR and I can always add the aero bits in the future.

 

Yes, Chrysler has been trying to sell Viper. Lots of rumors and speculation as to whether a deal has already been made. Nothing official yet.

 

Tom, these are Viper Competition Coupes. They are not street legal. Some are stock and some have Speed GT upgrades which , I believe, includes a little more horsepower. I was at Viper Days at Sebring last year and it seems most of the guys were running in the 2.13 to 2.15 range. Most of these cars have less horsepower than an '08-'09 Viper with headers and an off road PCM but they weigh about 400 pounds less and have a stiffer suspension.

It is hard to believe that the '08 and '09 Vipers can gain so much horsepower with just a set of headers but it has been verified. Someone explained to me (don't know if it's true or not) that the stock exhausts are very restrictive because they have side exits. The noise regulation tests are supposedly done on a drive by basis and a side exhaust car has a disadvantage. It is hard to believe that Dodge would leave that much horsepower on the table.

 

Oddly enough I only got a Porsche because of a crappy lying chrysler dealership. I got my deposit back and got a 996 TT. Haven't looked back though I wouldn't mind an ACR. Just seems like it would be too hard to find competition for that car.

 

Looks like pay backs for me this summer, and a nice view of your tail-lights