pastvertical

iTrader: (1)

hello guys, i went through my storage and i found a turbo that i bought several years ago for my dsm. the turbo is a t3/t4 garrett ballistic .
the turbine housing says .63, the compressor says .60

it was supposed to make 450 rwhp on a dsm. ( thats what they said when i bought it)

if i bought another one if these, and did a twin turbo setup, will theses work on a 418 cubic inch motor??

want to make 900 to 1100 rwhp

stevieturbo

If it was supposed to make an upper limit of 450 on a small motor with higher boost, not a hope in hell of them making 900 on a large motor with lower boost.

SM105K

iTrader: (3)

Bingo

Ping King

iTrader: (20)

Do you have a compressor map available for this unit? You may be run into issues with back pressure from your displacement, but its worth a shot to look at the map.

I doubt that you'll see that 1000 rwhp number though.

rkreigh

I'd go bigger or forget about it, that one will choke it

if you have a goal of 600-700 at the tire you'll be ok, but don't plan on revving it to the moon or you'll choke it off with back pressure

garethmarshall

I agree you will be pushing these to the max and probably will choke it. Your further ahead selling it and going bigger

NoorJ

measure the inducers/exducers of both wheels, that'll give more info than the aspect ratios

Orr89rocz

iTrader: (13)

These generally have a 55-59mm inducer compressor and similar 50's mm exducer turbine wheel. Definately smaller. You'd be better off with a larger turbine ratio if possible, .81-1.00 range.

They couuuuld work ok for 600-700 hp. Seen guys use these on their sbc's 305-350" motors. Bolt on L98 thirdgen with similar t3/t4 hybrids made enough on 10-12 psi to trap 115, which aint bad gain considering 100-103 mph is common with bolt on only.