Where did i go wrong
Thread Starter
Launching!
iTrader: (4)
Joined: Aug 2005
Posts: 237
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From: cocoa beach, florida
Where did i go wrong So i took my car to the track last night, and felt like driving it into a ditch on the way home ( of course with me not being in it when it went in)..No but, Originally my car went 12.9 @ 110. this was with the following mods
- MTI airlid
_ pacesetter longtubes and off road y pipe, and a cutout
-dragradials
-stock gearing 3.23's
now i add a performabuilt tranny stage 2 with a 3400 stall performabuilt convertor and i launched at 1500 rpms ( tried all the methods, this worked best) and left the line with a 1.82 60', ran a 12.8 at 105 repeatedly over and over. love the stall and tranny BUT i thought i would hit mid 12's or atleast a 12.6. Im on stock suspension and a ls1 intake manifold. Do i need to up the gears? LCA's? LS6 manifold? Hook a space shuttle on the back of my car?what the hell is going on here?
any advice from fellow convertor guys would be appreciated.
*** And in no way shape or form am i blaming this time on performabuilt, like i said i love the tranny and convertor and can feel the performance there, just seeing what other parts need to be upgraded to achieve the time i want***
- MTI airlid
_ pacesetter longtubes and off road y pipe, and a cutout
-dragradials
-stock gearing 3.23's
now i add a performabuilt tranny stage 2 with a 3400 stall performabuilt convertor and i launched at 1500 rpms ( tried all the methods, this worked best) and left the line with a 1.82 60', ran a 12.8 at 105 repeatedly over and over. love the stall and tranny BUT i thought i would hit mid 12's or atleast a 12.6. Im on stock suspension and a ls1 intake manifold. Do i need to up the gears? LCA's? LS6 manifold? Hook a space shuttle on the back of my car?what the hell is going on here?
any advice from fellow convertor guys would be appreciated.
*** And in no way shape or form am i blaming this time on performabuilt, like i said i love the tranny and convertor and can feel the performance there, just seeing what other parts need to be upgraded to achieve the time i want***
Does the car have a tune to adjust the shift points. I had a 02 SS w/the same stuff you had origanally but no cut out and ran 12.61@ 110 w/ 1.91 60ft.You should be atleast mid to low 12's.And yes LCA'S & ls-6 intake would help.
Thread Starter
Launching!
iTrader: (4)
Joined: Aug 2005
Posts: 237
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From: cocoa beach, florida
ill check that here in a little bit and then post results. I wanted to go try again tommorow. But i just cant come up with where the hell the 5mph went. do you lose a few mph up top with a stall?
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Thread Starter
Launching!
iTrader: (4)
Joined: Aug 2005
Posts: 237
Likes: 0
From: cocoa beach, florida
ya i understand that but 5mph time deduction for a 1/10 better time. I checked my tranny fluid its a tad bit low..not below the level but could prolly use half a quart. other then that im out of ideas.
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Verdad Gallardo Maybe the car has to be retuned for the new tranny & stall.I think you 60ft times should be better than 1.82 w /a 3400 stall that is not much better than i did w/a stock converter.
Thread Starter
Launching!
iTrader: (4)
Joined: Aug 2005
Posts: 237
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From: cocoa beach, florida
yea although i figured that since i only changed the tranny and not the computer that the old shift points should of stayed the same. Ill call norris tommorow and ask him.
Thread Starter
Launching!
iTrader: (4)
Joined: Aug 2005
Posts: 237
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From: cocoa beach, florida
Yea, pretty much what you said. Frank and a few other guys think it would be a good idea to retune the car, due to the fact that the car was tuned ( and tranny shift points where raised) on stock tranny and stock torque convertor, which differs greatly in size compared to the new 9.5" convertor that is in there. But another tuner told me that obviously it cant be the covertor because 1.8 60's are pretty good and to just see if the car is running rich from the last time i tuned it, and maybe i have a bad o2 sensor ( which i do) and check my air/fuel and go from there
This may not apply, but when I had my LT1 car I installed a cut out and it lowered my ET by 2 tenths. But once I removed my cats it actually started hurting my times when I left the cut out open. Thats any easy thing to to test next time your at the track
