Fast 95 Z28

Ok, I'm building a LQ4 408 with stock LS3 heads, 10.8:1 compression, pat G cam, victor jr intake (running a carb). Its going in a 1970 firebird weighing about 3500 curb weight i'm guessing. The car has a 12 bolt rear with 3.73 gears and a 28" tire. I plan to drive the car to the track about 25 miles away with a turbo 400 so i have no overdrive and it will be a non-lock up converter. I was thinking a 2800rpm stall? Since i don't really know how stalls work to much. I didn't know if i had a 3200-3500rpm stall how much it would be slipping if i was taching 2600rpm on the freeway. I want the car to be slightly efficient getting to the track and not going to kill my transmission from heat. I'm putting a tranny cooler on the car. Looking to run low-mid 11's Any recommendations are appreciated on the size stall!

Paul57

I think you will want a high torque multiplication converter for non lock-up street use. My 3200 is around 2.3 torque multiplication which is quite high. This will require less throttle input to get/keep you moving verses a lower torque multiplication.

Fast 95 Z28

won't a 3200 stall with my 408 stall out around 3600? what converter are you using? just want my 408 to run like a bat out of hell

87gnx

iTrader: (3)

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Leeroyws6

iTrader: (4)

revmax ftw.yes,they are a sponer here.

Paul57

Most converters don't "flash" over the rated stall unless you have a real heavy car or significant displacement. Standing on the brake (and gas) you won't usually reach the stall rating. At least that has been my experience.

Paul57

These guys were very helpful to me and the price is right for the quality internals.

FTICONVERTERS

iTrader: (3)

fast, We design and build converters like you are looking for. A converter can be built to give you driveability and performance. We do a lot of conversions such as yours. Give me a call and we can go over your combo and I can make a sugestion.

Greg