Hey whats going on I have a vk with a rb30et and a turbo 350 box with adaptor plates and standard t350 stall convertor. I dont know to much about autos but As most of you know a turbo 350 was ment to be behind V8's 5.0l-5.7L + I have this strong box behind my rb30et which makes a fair bit more tourqe at a higher rpm than a v8 but i need the stall speed to be around 3000rpm now im upgrading to a bigger turbo i need to somehow work out what t350 v8 convertor would help me get there im assuming a 3000rpm tourqe convertor ment for a v8 would be around 3500rpm with a rb30? or is that wrong Thanks heaps

I would sugest going to someone whom builds convertors and getting them to build one, that way they can work out torque and stall speeds for you.

as above 1000% talk to your auto bloke or better converter shop for the best advise

Quote: Originally Posted by pigsy as above 1000% talk to your auto bloke or better converter shop for the best advise yeah emailed dominator and the just gave me standard response WE CAN BUILD YOU A CONVERTOR FOR $980 i dont need one built! As a standard t350 convertor fits with my convertor adaptor plate that im using, just wated to know what stall speed a 2500rpm convertor ment for a 5.0-5.7 would be when joined to a Turbo 3.0l

give keas a go champ! they should be able to help you

there shouldnt be a difference, rb30 or v8 3000rpm is still 3000rpm

You will find the converter should come in a little higher. They work on torque and in most cases a 5l or 5.7l will make peak torque lower than an RB30 depending on mods. If you dont want to build another one then trial and error will be your friend. But I would expect it to maybe come in a little later say 3200 ish. Depending how big of a setup you are running 3-3500 wont be far off the mark anyway unless your running a std turbo or a baby highflow! Best bet would be though is call Dominator and TCE and ask some questions!

Quote: Originally Posted by FeRgO there shouldnt be a difference, rb30 or v8 3000rpm is still 3000rpm Dosen't always work out like that ,ie Gemini "standard stall" put behind a 202 in a car that weighs more, becomes a 2g+ stall (it wont last tho) Many things contribute to stall speed including ENG spec,Drive Ratio's,and wheel size etc, some convertor manufacture's will ask for all this info to get the correct stall speed They may explain how to measure correct "flash" stall speed when moving (not stationary with your foot on the brake as most people think) Having better brakes (or trans brake) to hold a car will in some case's allow for higher RPM on the line, so has the stall now changed because of the brakes ? MT

Mums taxi(Steve) is correct in what he is saying, A turbo car will create more torque as the boost comes on so the stall speed(flash) will increase as well, you could throw what you have in and trial and error will come into play but I would be asking a professional for the correct item straight up, there is to many possibles to get it right first up