adam`

iTrader: (10)

well im going with twins on my lsx mustang. i have to go with internal wastgates due to the space. turbos must be t3/t4 flange and would prefer some 60mm's. the shortblock is stock and the goal is 550whp on lowboost/pump gas.

motor is a stock ls1, 317 heads, tr224 cam, and ls6 intake. the fuel system is an intake walbro 255 with -6an feed to speed inc rails and 28lb injectors.

DrTurbo

iTrader: (3)

Their are several brands.....give us a call.

adam`

iTrader: (10)

do they make a t4 flange internal wastegate turbo?

DrTurbo

iTrader: (3)

I don't remember their being a T4 internally gated unit other then some of the Holset units. They are big though and fairly laggy.

396375

iTrader: (10)

Stock turbo from a Grand National will work.I just happen to have a couple laying around

adam`

iTrader: (10)

i dont think those are t3 or t4 turbos are they?

calongo_SS

iTrader: (7)

Not sure about the what turbos to go with but I guarantee those 28 lb injectors won't work. Get some 60's.

adam`

iTrader: (10)

i figure that. i hope a single walbro will handle 550whp though. it is maxing oiut on a 200shot.

nuclearxp

I had a t3/t4 Grand National 61mm turbo on my 3800 firebird, worked well with tight spaces. Try fullthrottlespeed.com.

Also, not 100% on this but I think 550whp will be pushing a walbro 255 pretty hard.

adam`

iTrader: (10)

arnt grand national turbos like a 3bolt setup?

adam`

iTrader: (10)

bump.

rking

iTrader: (3)

Sure is

adam`

iTrader: (10)

bump bump