mainly

but i think youre underestimating the advantage of the pdk transmission.

i dont care how fast you can shift in the viper. theres still a lot of time spent shifting whereas the shift time of the gt3 can essentially be neglected. its basically one continuous gear for acceleration.

and that is evident in the video.

the way the gt3 fell back at the end certainly has to do with the gt3 letting off somewhat. they were neck and neck, then suddenly the gt3 is 30-40 feet behind...

and to me it looked like you could hear the vipers engine kick down slightly before the gt3 jumped ahead. so i think it was the viper that actually got the jump. maybe.

but yes, eventually at a point/speed after which i stop caring, the viper would pull ahead, and walk away from the gt3.

mainly

you mean you think it might have beaten the viper if the viper was stock, not tuned? cause it said in the video that the viper did have power mods.

ipse dixit

I think a GT3 owner who's focusing on 0-60 times or quarter mile times and things like trap speed bought the wrong car.

hfm

^ This.

Nizer

Yup.

And FWIW, I watched a Viper ACR and 997.2 GT3 Cup car turning very similar times back to back at MSR Cresson a few years back. Both on slicks and both driven by the same pro driver. Same old story: less weight vs more HP.

blinsc

deleted

fastmd

Correct, look at the Nring lap times. The Viper ACR is beat only by the Porsche 918 and Nismo GTR, if you consider major manufacturers (not Radical or gumpert).

I did not buy my 991 GT3 to drag race vipers...

fastmd

I agree less weight is always better. A better comparison would be an ACR-X vs a Cup Car, since the cup car is not street legal, ACR-X is also not street legal. My ACR-X was several secs faster than my ACR on all tracks.

Nizer

Might have been an X for all I know. I was there for a Porsche coaching event and wasn't paying much attention other than to note the similar lap times (and the pro's ability to hop in the viper and beat the local hot-shoe owner's best time on the pro's third lap).

gt2urbo

saw a viper viper Xs at cota last year during PCA carrera of the americas. I believe they were running same times as the hopped up cups/ am drivers in RSRs

ToyGuyAZ

I have been on a road course many times in a 991GT3 versus a new Viper TA. On the straight the Viper does not pull on the GT3 at all and by the end of the straight the Porsche will carry more speed because it stops better.

Jooyoung99

The viper on video is not even stock. It's put 40 more ftq with intake, exhaust and tune. Stock viper is faster than GT3, but not by much.

http://www.vividracing.com/blog/proj...ith-big-gains/