Outer Limits 4x4 Board

picking up my 3rz engine tommorrow and thinking about getting extractors and a 2.5 inch exhaust for it. any one done some thing simlar? power gains? cheers

The stock 3rz manifold/header is a decently designed tube header. Just put the new exhaust onto the back of it and save some coin.

lol i have the 3rz engine in mine and i dont think there that great of an engine.

but i would just get the exhaust

Kingston_99 wrote:lol i have the 3rz engine in mine and i dont think there that great of an engine.

Drop some 4.3 or down to 4.88 diff gears in it, will poke along better

Kingston_99 wrote:lol i have the 3rz engine in mine and i dont think there that great of an engine.

but i would just get the exhaust

never driven a 22R then

bubs wrote:

Kingston_99 wrote:lol i have the 3rz engine in mine and i dont think there that great of an engine.

but i would just get the exhaust

never driven a 22R then

haha naa, this is the only hilux i'v drivin. is orite but i dont think the 3rz is that great, if i was swaping an older engine for one of these i'd be looking at something beta like a V6 or even a V8.

Sic Lux wrote:

Kingston_99 wrote:lol i have the 3rz engine in mine and i dont think there that great of an engine.

Drop some 4.3 or down to 4.88 diff gears in it, will poke along better

ok im new to 4wd, if i run 33inch tires, wat would be a good diff ratio.
ATM im only running 31inch so im not to bothered about it.

just picked up my 3rz now the stock manifold looks pretty free flowing so ill ditch the extractors. is a 2.5 inch exhaust the way to go?

2.5in should be fine, it is a big displacement 4cylinder so wouldn't go smaller. As for mandrel bent vs press bent, not sure, I went mandrel just in case I turbo it later on (got the turbo manifold already ).

If you turbo it, id run a 3inch or bigger. even half a bar of boost is a shitload of air coming out of 2700cc motor.