Finally PDR data vs Dragy data
Race Director
Joined: Dec 2006
Posts: 12,393
Likes: 2,911
From: Fort Worth, Texas
Last edited by PRE-Z06; May 12, 2020 at 07:55 PM.
Burning Brakes
Joined: Jun 2012
Posts: 1,046
Likes: 862
From: Vancouver BC
Race Director
Joined: Dec 2006
Posts: 12,393
Likes: 2,911
From: Fort Worth, Texas
Thanks it’s stock other than 275mm drag radials and CTS spares up front, I run scca autocross and time trials in stock class. It’s a manual as a C6 auto wouldn’t 60’ that fast. It’s a 3LT as well, 1LT narrow body LS3 Z51 with smaller brakes would easily be a tenth faster.
Last edited by PRE-Z06; May 12, 2020 at 09:06 PM.
Drifting
Joined: Mar 2018
Posts: 1,362
Likes: 400
From: DFW TX
The point of posting the video is that the PDR and timer are innacurate on a fairly grand scale. The dragy is way better.
It is still a 2.8 or 2.9 car but people have to be kidding themselves with the 2.6-2.7 stuff. We are probably talking 100 whp difference between a stock 2.8x run and a high 2.6x run.
It is still a 2.8 or 2.9 car but people have to be kidding themselves with the 2.6-2.7 stuff. We are probably talking 100 whp difference between a stock 2.8x run and a high 2.6x run.
Thread Starter
Burning Brakes
Joined: Apr 2014
Posts: 1,112
Likes: 1,514
PDR showed 3.2 in his 3.1 run and 11.56 which is totally not his best try at all
In his first run he did 2.9 in PDR and 11.45 in dragslip but he forgot to connect dragy in that run.
He said he has a transmission issue in 1-2 shifting and you can see it clearly in the dragy curves. Now it is resolved after transmission reprogramming and he will do some testing again.
.
Last edited by Iker; May 12, 2020 at 09:36 PM.
Burning Brakes
Joined: Aug 2015
Posts: 1,234
Likes: 986
From: Scottsdale Arizona
The point of posting the video is that the PDR and timer are innacurate on a fairly grand scale. The dragy is way better.
It is still a 2.8 or 2.9 car but people have to be kidding themselves with the 2.6-2.7 stuff. We are probably talking 100 whp difference between a stock 2.8x run and a high 2.6x run.
It is still a 2.8 or 2.9 car but people have to be kidding themselves with the 2.6-2.7 stuff. We are probably talking 100 whp difference between a stock 2.8x run and a high 2.6x run.
All real enthusiasts want for any car is accurate data. It’s that simple.
The C8 is fantastic...better than my expectations...but the PDR is definitely ‘optimistic’ with its timing.
Race Director
Joined: Dec 2006
Posts: 12,393
Likes: 2,911
From: Fort Worth, Texas
DA 1900
PDR showed 3.2 in his 3.1 run and 11.56 which is totally not his best try at all
In his first run he did 2.9 in PDR and 11.45 in dragslip but he forgot to connect dragy in that run.
He said he has a transmission issue in 1-2 shifting and you can see it clearly in the dragy curves. Now it is resolved after transmission reprogramming and he will do some testing again.
.
PDR showed 3.2 in his 3.1 run and 11.56 which is totally not his best try at all
In his first run he did 2.9 in PDR and 11.45 in dragslip but he forgot to connect dragy in that run.
He said he has a transmission issue in 1-2 shifting and you can see it clearly in the dragy curves. Now it is resolved after transmission reprogramming and he will do some testing again.
.
Last edited by PRE-Z06; May 12, 2020 at 11:46 PM.
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Melting Slicks
Joined: Oct 2008
Posts: 2,074
Likes: 1,158
From: Pasadena Texas
Yep and I'm betting that because dragy just proved that there are a multitude liars about the C8's performance that come Monday morning the phones will be ringing off the hook at the local Chevrolet dealers with people cancelling their order instead of buying a piece of crap C8.
Some of the anti C8 obsessions are just beyond ridiculous. ............finding any little thing to cry about........I didn't know the car was such a POS until I read about it in a Corvette fan forum site. All this b****ing and moaning over a couple lousy hundredths of a second. People are dying all over the world and all some of you give a crap about is what dragy says. Personally I think some priorities need greatly adjusting.
Some of the anti C8 obsessions are just beyond ridiculous. ............finding any little thing to cry about........I didn't know the car was such a POS until I read about it in a Corvette fan forum site. All this b****ing and moaning over a couple lousy hundredths of a second. People are dying all over the world and all some of you give a crap about is what dragy says. Personally I think some priorities need greatly adjusting.
So, how did I come about finding this obscure and way old thread. I was doing a search on where to install a Dragy and found this linked to google. Since I was raised well and was told it never hurt to say I'm sorry or to say please, or thank you, I felt that eating some crow was the right thing to do.
By the way, I should receive my new dragy tomorrow.
Last edited by OLD_GOAT; Jan 28, 2025 at 08:56 AM.