F8L Z71 Posted September 12, 2004 Author Report Share Posted September 12, 2004 Well my runs sucked and I kept blowing intake tubes off and I'm down about 3-5mph form 2 weeks ago so now you guys can laugh. *Copy and paste from LS1Tech* My times were not the greatest but about what I expected after my lastest testing on the G-Timer. Seems I am about 3-5mph lower on both the G-Timer and the track than what I was 2 weeks ago. I'll figure out what's up and get back there as soon as I can. I just wish I hadn't dicked with the intake piping after I picked it up from the shop or I might not have keep popping tubes last night. Anyway, thanks to Vojto I got some pretty neat footage of a 4wd launch gone wrong. Thx bro. 4WD launch at 8psi. Hard to see in the video but I swear tires were bouncing off the ground. Even people at the track thought the tires were lifting, only instead of both at once it was more like one at a time, alternating. LOL Buckin 4x4! Link to comment Share on other sites More sharing options...
m396 #00-011 Posted September 13, 2004 Report Share Posted September 13, 2004 Wow, all of these hard 4WD launches look so hard on the drivetrain, much like axle hop. Wish I had that problem, ;) Link to comment Share on other sites More sharing options...
F8L Z71 Posted September 13, 2004 Author Report Share Posted September 13, 2004 Wow, all of these hard 4WD launches look so hard on the drivetrain, much like axle hop. Wish I had that problem, ;) <{POST_SNAPBACK}> It was hard on the interior too. All my crap when flying out of every nook and cranny it was hiding in. I'm told I just need to crank down the torsion bars and drop it and inch and a half and it will all go away. Link to comment Share on other sites More sharing options...
m396 #00-011 Posted September 13, 2004 Report Share Posted September 13, 2004 I'm told I just need to crank down the torsion bars and drop it and inch and a half and it will all go away. Really, that would give you a lower center of gravity, but would also give you a softer spring rate. Link to comment Share on other sites More sharing options...
davechevyss Posted September 13, 2004 Report Share Posted September 13, 2004 good luck and hope the tranny holds Link to comment Share on other sites More sharing options...
mwalls54 Posted September 13, 2004 Report Share Posted September 13, 2004 wow thats alot of wheel hop, need to drop that thing some and loosen the rear suspension some. i have some wheel hop but not as bad as yours. still a good time Link to comment Share on other sites More sharing options...
F8L Z71 Posted September 13, 2004 Author Report Share Posted September 13, 2004 Thx mate, my best of the night was a [email protected] best mph was 104.9 so I assume something is wrong and taking timing out. Not sure but I think by lowering the front end it keeps me from maxing out the suspension as fast and keeps the front tires from cambering in so bad and hopfully keeps on em on the ground LOL Link to comment Share on other sites More sharing options...
BenKey Posted September 13, 2004 Report Share Posted September 13, 2004 Thx mate, my best of the night was a [email protected] best mph was 104.9 so I assume something is wrong and taking timing out. Not sure but I think by lowering the front end it keeps me from maxing out the suspension as fast and keeps the front tires from cambering in so bad and hopfully keeps on em on the ground LOL <{POST_SNAPBACK}> Do you log your runs? Link to comment Share on other sites More sharing options...
F8L Z71 Posted September 13, 2004 Author Report Share Posted September 13, 2004 Do you log your runs? <{POST_SNAPBACK}> I don't have any dataloggin software anymore. ATAP took a dump on me then my laptop broke. I am gonna have my buddy check it out and retune it to lean it out some. We were at 10.5 AFR on the street in 3rd gear. Link to comment Share on other sites More sharing options...
zippy Posted September 13, 2004 Report Share Posted September 13, 2004 i'm not sure anyone would be laughing at you. that's the quickest STS time i've seen so far. pretty nice launches, what were the 60' times? glad to see the trans held up.... Link to comment Share on other sites More sharing options...
F8L Z71 Posted September 13, 2004 Author Report Share Posted September 13, 2004 Thx Zippy. I guess I am just upset that I am losing MPH somewhere and I don't know why. I am gonn apull the plugs after work tomorrow and see how they look. The 2 best 60's were 1.84/1.85 the rest were in the 2.0-2.2 range. It seems that if I don't get at least 5psi on launch it will bog and take forever to spool up due to this big turbo (big for my 5.3L). Seems 6psi is perfect for a smooth launch. Anything higher than that sends the truck prancing down the track and a crap 60' like the first one in the video (2.0). The 2nd launch was the 1.84 60' and 7.99 1/8th mile. Link to comment Share on other sites More sharing options...
F8L Z71 Posted September 13, 2004 Author Report Share Posted September 13, 2004 Ohh, and i think the tranny was slipping a bit because 3rd took longer than normal to get into. Not enough to hurt my times much i dont think but enough to hurt my feelings. LOL Link to comment Share on other sites More sharing options...
mwalls54 Posted September 14, 2004 Report Share Posted September 14, 2004 thats where i lost my tranny on 2nd to 3rd shift. might want to think about getting some clutches and a band. Link to comment Share on other sites More sharing options...
zippy Posted September 14, 2004 Report Share Posted September 14, 2004 when you break a hard part, that's when you know you got the shift right. Link to comment Share on other sites More sharing options...
BenKey Posted September 14, 2004 Report Share Posted September 14, 2004 Ohh, and i think the tranny was slipping a bit because 3rd took longer than normal to get into. Not enough to hurt my times much i dont think but enough to hurt my feelings. LOL <{POST_SNAPBACK}> Do you have a shift kit, tranny cooler, better fluid? Link to comment Share on other sites More sharing options...
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