m6z

iTrader: (5)

I've been thinking of doing an lsx swap in a g-body for awhile now. Looking for some serious power. I just happen to find a complete kit. Headers, turbo, wastegate. All the hot parts anyway. It's a single kit with a PT 106 "F" trim turbo, tial 60mm gate & a 5" to 4" downpipe.

I would like to stay hyd. roller if I can. Would like to run in the 8's with this combo. Prob. around 3300 lbs with a turbo 400 trans with brake.

What would the ideal displacement & recommended heads? Should I go solid roller? Will a nice big air to air be sufficient or do I need to go air to water? LSX block with ETP heads? or ???

Any ideas or comments would be helpfull.

Thanks,
Doug

DrTurbo

iTrader: (3)

I would run at least a 400ci engine, but would definitely think about keeping the Downpipe a 5". Also a 106 is a BIG overkill for 8's....hehe.

m6z

iTrader: (5)

Yeah I know it's overkill. Go big or go home right? lol.

Anyone else have an opinion? I can use all the help I can get.

hellbents10

iTrader: (10)

Its going to be tuff on a hyd. motor as you need some RPM to work with esp. If the cubes are at or around 400 or less. You could go 8's on less turbo and keep a hyd. setup though.

Cmarsh

We have gone 7.79@ 182 mph on radials with a Gt55 91mm turbo..why deal with the 106 if your goals are only 8's?

m6z

iTrader: (5)

The only reason I would be running the 106 is because it comes with the kit. So a solid roller 434 would be more matched to the 106? And would be enough turbo & motor to go high 7's/ low 8's. Not that I will want to go that fast. lol.

Are the tall deck LSX blocks out yet? What would be the max cube on a tall deck turbo motor?

Pro Stock John

iTrader: (34)

I've been asking around, and +/- 400ci has been the reccomendation. Folks have reccomended running an LSX block bored 4.030 so as to leave some metal for any future overbores. Couple that bore with a 4.000 stroke and you have a 408ci. As Tom/Joe/Harlan/Stenod and Steven/Josh/LMR have shown, a 106mm turbo is a mid 7 second turbo in the hands of experienced racers. Did you guy the turbo kit that Cesar had?

m6z

iTrader: (5)

No its not Cesar's kit. This is the kit that was/is on Cal Hartline's GN. What would be the reccomended turbo to run mid 8's with around 400 cubes. Prob around 3500 race weight.

Cmarsh

Pt91, gt5591, prob even a GT4788.

m6z

iTrader: (5)

Thanks.

VENGEANCE

91mm turbo has been 7's w/ ~400 cubes. If 8's is simply your goal id go with something like an 88-91. But im not one that can talk, Im putting a 98mm on a six speed car. If i were you, id do a mid-400 cube LSX with a 106 and go really fast , dont stop at 8's! Ive always been a fan of overdoing it.

98Z28MASS

iTrader: (6)

If money permits why not keep the 106 and pick up an 88 or 91 as well. That way you could run the smaller turbo (if that even applies to an 88-91 lol) and see where that gets you then step up to the 106 if your wanting more. Also, id say the bigger cube motor the better (within reason as you wouldnt want to bore out the cylinder walls too much). An LSX block with 400+ CI should be enough for either turbo.

turbo'd stang

I thought you needed 400+ci to run that fast?