deion82

Ok I have a 91' GMC ext cab 2wd sierra pickup. tubbed, caged, 5.14 gears with 31x18x15 street tire and 33x17x15 good year slicks with a blown injected ls1. On base tune 9lbs it made 843Hp 749tq. I will be cranking it u to 16-20lbs of boost. I haven't got the truck weighed but i'm guessing in the 3,300lb range. I have been thinking that a glide with brake isn't the ideal tranny for this application?? The holley dominator ecu will control all functions of the 4l80e transmission so that is a plus that route. I was thinking more in the lines of a built 4l80E or biting the bullet and putting in either a bruno lenco or the lenco st1200 clutch. The truck will be a street strip but mostly strip. let me know what you all think.

Sc00by

I say a built 4l80e. Still will be comfy when driving on the street.

bud8fan

iTrader: (9)

why not go with a built t350 or 400...what are you running now

custm2500

iTrader: (10)

What about a glide with that killer power?

You say you aren't going to drive it on the street much.

nonnieselman

iTrader: (10)

I think its all goin to come down to just how much you wanted to drive it on the street.
If it were me id put a built 80e in with a tbrake.

But if its more strip then a 400 or glide with a T brake.

deion82

With the 5.14 gears and tire size. What would my trap rpm be? That's why i'm worried about a glide. Plus the heavy weight. In my super gas car which was 2,600lbs same gear and tire i was coming through the trap at 7,300 rpm. When i say street very limited highway mostly in town driving. If i go auto it will have a t-brake. Even the bruno lenco has a t-brake.

nonnieselman

iTrader: (10)

Even if you went with a th400 or glide, high gear is 1:1. I think theres different gearsets for the glide but not sure.

You didnt meantion the type of FI your using. Turbo? Or SC?

deion82

You didnt meantion the type of FI your using. Turbo? Or SC?[/QUOTE

I'm running a BDS high helix 10-71 blower. Anyone know how to calculate 1/4 mile rpm?

schino

iTrader: (14)

There are calculators online, just do a google search. I'm on my phone otherwise I'd link one. I'm not sure what the bruno lenco is but lenco are not very street friendly. They do carry a bad *** status though.