408 or turbo 5.3?

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Apr 17, 2005 | 06:39 AM

#11

ZDEN

Thread Starter

Launching!

Joined: Apr 2003

Posts: 209

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From: Fulshear, TX

Quote:

Originally Posted by parish8

you will want to talk to whoever you have build your converter, an off the shelf 2600 converter is desigend to stall to 2600 with a stock motor. on a turbo aplication it may stall to 4000rpm wich is above your peek tq rpm. you will also want to program your transmision line presure to ramp up much sooner. with a turbo you can see a lot of tq at only 1/2 throttle especialy when loaded with something like a trailer.

so how would a stock verter act with it?

Apr 17, 2005 | 09:24 AM

#12

parish8

single digit dreamer

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Joined: Mar 2002

Posts: 9,743

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From: omaha ne

Quote:

Originally Posted by ZDEN

so how would a stock verter act with it?

i can't say for sure but i would expect it to spool slowly because it is too tight and then who knows what once the boost comes on.

a stall is a great investment with a turbo. i just think there are some special considerations when building one for a heavy truck with a turbo. it would be best to call up whoever is building your stall and give them all of your specs and they will make the adjusments.

with the stall i have i can brakestall it up to 2500 or so wich is prety decent, then even when 800+rwtq hits it still only goes up to about 3000rpm. geting it to hold that much tq without blowing thru to 5000rpm but still stall to 2500 probably wont happen with an off the shelf converter.