sailman

I'm looking to turbo a 250cc fourwheeler motor, its a 4 stroke out of a suzuki quadrunner 250

i'm thinking about going draw through carb system with a 34mm mikuni carb to keep it breathing easy

what would abe a turbo small enough that i could get cheap used somewhere? i was thinking about using a turbo of a jetta TDI and cutting the exhaust housing from teh manifold and welding teh exhaust housing right to the manifold im gonna make.... would this turbo still be too big?

sohcpwr

t25, small mitsu turbo, the'll all work. dont do a drawl through though. they suck. Modify the carb a little and do a blow through setup. A drawl through can ice the air/fuel mixture at outside temps of 50 degrees and under

sailman

hmm.... i'll see if i can get my hands on a TDI or TD turbo off a jetta or golf.....

what modifications would you need to make to the carb to do a blow through set up, ive heard about having to enclose the whole turbo in a whole case so the whole turbo is under pressure

sohcpwr

in the case of a quad (it has only one carb?) you could just run the pipe to it. Different carbs usually require different modifications. The float bowls are hollow and most can only take a few pounds of boost before they collaspe. a common technique is to fill them with foam. Im more familiar with v8 carbs as opposed to the motorcycles, so i dont know how much applies. You sometimes have to run a few vac/boost lines from the plenum to areas on the carb where it will leak fuel under boost i.e. throttle shaft, cold start valve, etc..

use a t25 off a 2g eclispe. I got one for sale if you want it. pm me