How much power can a rebuilt r150F *Really* handle?

[WeakSauz]

Hi all,
New in general to the R-Series transmissions, and have a project underway that is making me question if an R150F is the best platform to build off of.

It's a bizzare project-- Sort of a "do it all" vehicle-- not a dedicated crawler, not built for any one purpose other than to be extremely weird, unsuspecting, and to make tons of loud noises and tire smoke:

- 2000 Toyota 4Runner, factory 4x4 IFS setup. (it's built/lifted with lockers, etc, but all factory susp geometry)
- Built/studded 1UZFE, Kelford turbo cams, ported heads, sheetmetal intake, single turbo, E85 (will make 600 wheel horsepower)
- Rebuilt long shaft latemodel R150F, oem chain transfer case, driver drop for IFS crap.

Clearly this thing is going to scream and make tons of power, and rev to 8,000+.
Will an R150F be up to that task? Even if built up to the full potential with caged bearings, etc.

I will not be driving it super hard in 4wd, due to the chain transfer case-- I know it's a weak link.

My local transmission guy and friend is telling me I need to avoid future headaches and just go with a TH400 and adapter for Toyota transfer case. But I really just want to bang gears.

Think an R150 will take it?

[Snowtoy]

Seeing how most in the Supra community run the R series behind their 2jzgte swap/upgrade due to the cost/rarity
of the jetrag 6-spd, it should be able to handle the 600hp you have now, providing you aren't doing drag strip launches at every stop light.

[Gnarly4X]

Hi all,
New in general to the R-Series transmissions, and have a project underway that is making me question if an R150F is the best platform to build off of.

It's a bizzare project-- Sort of a "do it all" vehicle-- not a dedicated crawler, not built for any one purpose other than to be extremely weird, unsuspecting, and to make tons of loud noises and tire smoke:

- 2000 Toyota 4Runner, factory 4x4 IFS setup. (it's built/lifted with lockers, etc, but all factory susp geometry)
- Built/studded 1UZFE, Kelford turbo cams, ported heads, sheetmetal intake, single turbo, E85 (will make 600 wheel horsepower)
- Rebuilt long shaft latemodel R150F, oem chain transfer case, driver drop for IFS crap.

Clearly this thing is going to scream and make tons of power, and rev to 8,000+.
Will an R150F be up to that task? Even if built up to the full potential with caged bearings, etc.

I will not be driving it super hard in 4wd, due to the chain transfer case-- I know it's a weak link.

My local transmission guy and friend is telling me I need to avoid future headaches and just go with a TH400 and adapter for Toyota transfer case. But I really just want to bang gears.

Think an R150 will take it?

"Built/studded 1UZFE, Kelford turbo cams, ported heads, sheetmetal intake, single turbo, E85 (will make 600 wheel horsepower) "

Will that engine fit in the engine bay of my 1986 XtraCab? 

Gnarls.