noxlovexhere

I need a little bit of advice. My boss is building a trail buggy (see the attached picture) with a 2000 LM7 (with around 100k) as the powerplant connected to a th400. He was looking for more power and I have swayed him into doing a basic twin turbo setup.

What he's looking for is low-low (least lag possible) rpm power on demand that'll hold nicely up until 5500-6000rpm. He is looking into an LS6 cam as well as upgraded springs to accompany this TT build. Could anyone help choose two decently sized turbo's that'll spool quickly off the low end? This is going to be an "all-around" rig but rock crawling is it's primary job.

He's shooting for somewhere between 450-525whp that'll be reliable. Any advice would be greatly appreciated.

stmz28

iTrader: (9)

I would get a cam from ljms with brain tooley springs

noxlovexhere

Thanks for the insight. As long as it doesn't shift the powerband up too high in the rev range I am sure he would be interested.

His old rig was a using a GM 4.3 with about 200hp and this rig is going to be much much heavier.


Here's a video of his old rig in the Southeast Tough Truck Challenge to give you guys an idea of what this might see.

samdogmx

iTrader: (14)

Why twins? For that amount of power I'd think ONE borg S362 or S366 would be enough.

JustAFooL

iTrader: (45)

This is what I was thinking. Dont see a problem with spooling that turbo and it would touch 500 I would think.

oscs

iTrader: (19)

N\A or a supercharger

JoeNova

Single on3 7665 or even 70mm. Triple 12 cam. 2" crossover. Should make for an incredibly torquey 5.3.