Getting into the powerband faster/Cam in high mileage LT1?
10-29-2010, 02:15 AM
#22
here is a video of my car doin it. stock 3.42 gears no clue on miles of the rear (junk yard find) and i just camed my car with 128xxx miles. just do some tests like compression test, cylinder leak down test, and if everything looks good then go for it.
http://www.youtube.com/watch?v=EtAutsjAiiY
http://www.youtube.com/watch?v=EtAutsjAiiY
10-29-2010, 02:30 AM
#23
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here is a video of my car doin it. stock 3.42 gears no clue on miles of the rear (junk yard find) and i just camed my car with 128xxx miles. just do some tests like compression test, cylinder leak down test, and if everything looks good then go for it.
http://www.youtube.com/watch?v=EtAutsjAiiY
http://www.youtube.com/watch?v=EtAutsjAiiY
10-29-2010, 02:37 AM
#24
its auto (better for drag racing) but i grew up driving sticks. im running headers, 3" off road y pipe, 3200 stall, CC503/ valve train, 1.6 roller rockers, air foil, 160 thermo, throttle body coolent bypass, !cat !egr !air, stock unported heads and intake, a .015 head gasket, walbro 255 fuel pump, LT4 Knock Module, poly motor, trans and torque arm mount
10-29-2010, 02:43 AM
#25
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its auto (better for drag racing) but i grew up driving sticks. im running headers, 3" off road y pipe, 3200 stall, CC503/ valve train, 1.6 roller rockers, air foil, 160 thermo, throttle body coolent bypass, !cat !egr !air, stock unported heads and intake, a .015 head gasket, walbro 255 fuel pump, LT4 Knock Module, poly motor, trans and torque arm mount
10-29-2010, 06:00 AM
#29
if you want to put it into perspective...have you ever seen a FWD ricer launch?
They dump it, the motor screams, the wheel hop begins and then they shift and the rpms go WAAAAYYYY down. Then they are at to low of an rpm. This happens because they are spinning the tires, the rpms are crazy high and the wheels are spinning bad, but they have no idea how fast they are actually going. so they shift and the rpms drop as if they were doing 15mph in 2nd gear.
Work on your launches. Hard/smokey launches arnt what get you good times. Slipping the clutch a little more and finding that perfect spot is what you need to do. M6 cars are hard to launch, your tires may have something to do with it as well. not just the compound but the sidewall aspect ratio as well.
They dump it, the motor screams, the wheel hop begins and then they shift and the rpms go WAAAAYYYY down. Then they are at to low of an rpm. This happens because they are spinning the tires, the rpms are crazy high and the wheels are spinning bad, but they have no idea how fast they are actually going. so they shift and the rpms drop as if they were doing 15mph in 2nd gear.
Work on your launches. Hard/smokey launches arnt what get you good times. Slipping the clutch a little more and finding that perfect spot is what you need to do. M6 cars are hard to launch, your tires may have something to do with it as well. not just the compound but the sidewall aspect ratio as well.
10-29-2010, 06:34 AM
#30
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like thes guys are sayin your not driving it right, practice your launches easing off the clutch as fast as possible with out breaking the tires loose. you'll figure out when you've gotten the most acceleration w/ the least wheel spin. also a set of LCA's will help plant those tires
nope, you can't have it both ways! a bigger cam will move the powerband so it starts and ends higher. there are mild grinds out ther that will retain the low end while picking up on the high end, if you still want a cam like your describing after figuring out your launch I'd look into a crane227 or speed inc's cadiallac cam.
nope, you can't have it both ways! a bigger cam will move the powerband so it starts and ends higher. there are mild grinds out ther that will retain the low end while picking up on the high end, if you still want a cam like your describing after figuring out your launch I'd look into a crane227 or speed inc's cadiallac cam.
10-29-2010, 07:34 AM
#31
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Like the others are trying to tell ya, your vehicle speed is not matching your tire speed when you are making the 1-2 shift. So in actuality, you might as well be trying to launch in second gear. Next time you are out driving around, find a nice steep hill and practice taking off slowly while going up it. Don't just drop the clutch and get going, pretend there is a cop behind you and take off deliberately slower. Then apply that to the flat launch, only give it more gas and slowly let the clutch out. If the tires don't spin, let the clutch out faster next time.
10-29-2010, 11:57 AM
#33
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You need to control the wheelspin! Instead of launching it at 2k launch it at a lower rpm and dont simply put the pedal to the floor. If it starts to blow the tires off either slip the clutch slightly or feature the throttle slightly to regain traction.
10-30-2010, 02:09 AM
#34
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thanks for all the advice, this morning i went out and ran the clutch out slower while gradually giving gas, it spun for maybe 5 feet then caught in first... 1-2 shift i ended up at 4200ish in 2nd in the powerband and pullin hard 
Now that the streets are cold, at 15mph i hit it and it spins like a ****... makes me feel like i have more power
Now that the streets are cold, at 15mph i hit it and it spins like a ****... makes me feel like i have more power 