Big problems
Thread Starter
10 Second Club
iTrader: (24)
Joined: Oct 2002
Posts: 722
Likes: 1
From: Lake mary, (Orlando) FL
Big problems Ok..A friend of mine had a vigilante 3600 put in my a good shop in the area about a month and a half ago...ok run down..it's a 2002' SS with little bolt on's..the car was going 12.70's@111 in the winter and 12.90's-13.0's@109 in the summer before the converter...well after the converter went it the car got MUCH slower...un explainable to me..the car ran before on 245/50/16 nitto's with z28 wheels in the back...after the converter on went the e.t. street's 26/10.5/16's...ok the car went from an average of 13.0@109..to 13.5@102 with the 3600 stall!!!there was no spinning or anything..the car dead hooked and took off..end of story..so what the hell could be wrong with it lol...i feel bad because i was always bugging him to get a converter..cuz i went from 12.70's to 12.20's with my 3200 a few years back...oh then the other day he said he floored it to pass someone and he threw an SES light...the code came back (under autozones scanner) as the shift control stelinoid was stuck open...wich would make sence down the track and all...but it shifted perfectly down the track..I have a much better scanner so i am going to scan just to double check...but anyone know of anything i can do to help this kid?...anone ever heard of anyone LOOSING 5 tenths and 7mph from a converter LOL..never heard it myself..i only lost 1/2 a mph with mine..any help would be awesome...Thank's,
Carter
Carter
Re: Big problems Most likely PCM gremlins are pulling out timing. Could be false knock or something else. Bottom line, the motor is down on power for some reason.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Re: Big problems My personal experience with drag radials vs. ET Streets/Slicks is this:
Unless you have a lot of power and gear, stick with drag radials. A friend have a Vette set up like mine, and ran a 1.64 short time on RE71 Bridgestone Potenza tires (12.04 ET), we put slicks on it for the next run, same day...and it went slower. Not .5 , but a little. The ET streets grow at the big end and sacrifice some rear gear ratio, and they take more power to lug down the track. Try the Nittos with a powerbrake to 3,000 and then stomp it and see how it does.
SDB
Unless you have a lot of power and gear, stick with drag radials. A friend have a Vette set up like mine, and ran a 1.64 short time on RE71 Bridgestone Potenza tires (12.04 ET), we put slicks on it for the next run, same day...and it went slower. Not .5 , but a little. The ET streets grow at the big end and sacrifice some rear gear ratio, and they take more power to lug down the track. Try the Nittos with a powerbrake to 3,000 and then stomp it and see how it does.
SDB
10 Second Club
Joined: Nov 2001
Posts: 1,724
Likes: 0
From: Fenton, MI
Re: Big problems Running that much slower is definitely strange. I can tell you that the shift solenoid stuck open code is probably a result of the bigger stall converter and that there really isn't a problem there. I get the same code on my car with my pro thruster 4200. I hear this code will occur most often in the newer model year cars, like your friend's car and my car.
