Hi,
I have a LT1 engine form a impala SS. I have converted it from a automatic to a 5 speed.
My 1st gear can only take 300 flt of torque, but 2nd through 5th can take 350 flt of torque.
I would like to modify the engine so I don't destory 1st gear. How can I get less torque at the low end ?

Timing ?
Chip mod ?
different stroker ?
anything is helpfull
Thanks.

 

What kind of 5 speed?

 

914 Prosche Transmission.

 

I assume its a transaxle, I would leave it be, the chance of you getting any traction in that first gear in what seems to be a lightweight project car is very slim.

 

bigger cam

bigger intake runners

 

Wasn't the 914 the 4-cyl version of the 911?

If so, 300 lb-ft capacity sounds VERY high. IMO, the LT1 will eat that trans early on in it's life. My guess is first full throttle romp in 1st gear.

I had a 164 cube Corvair behind a early 60's Bug transaxle and first gear was iffy. Imp is 2-3 times as strong.

 

Yes, It came from the 4-cyl version of the 911 of the 911

How do you full throttle romp in 1st gear?

 

Put the transmission in 1st and proceed to press the gas pedal to the floor hard.

 

lol

 

I would kill the poor tranny!!!
the engine has 340 flt of torque

 

is the engine bone stock?

jesse

 

Yes, it's stock
the engine comes from a 95 Impala SS