Tuesday, October 02, 2007 - 11:40 am, by: Adam Holloway(Envme)
hey guys just a heads up if you are going to buy a manifold off just jap for the 1j DONT,they dont fit right and the bigest problem is that it sits to close to the motor and you cant mount a turbo to it,and to fix it you will have to mod the out of it and to top it off they are a bounch of drop kicks there .
Benjamin Burgess Goo Roo NSW Toyota Soarer GT-TL, Toyota Corolla Conquest
Tuesday, October 02, 2007 - 12:19 pm, by: Benjamin Burgess(Jampac)
That's the same for just about every 1jz manifold currently sold as they all come from pretty much the same source ie. china. You pay 300 bucks for a manifold don't expect it to bolt up, cause it will not. I've outlined this before about the mods I had to do to get my one to fit.
Tuesday, October 02, 2007 - 01:27 pm, by: Benjamin Burgess(Jampac)
The gcg one is made by a guy here in oz called 6boost. He is all over performanceforums. Yes his ones work, but 1100 compared to 300, for most people, it's no contest which one they'll buy.
Also it's not that expensive to fix them. You chop off the useless T4 flange, weld on a T3 flange at the correct angle, then might have to redrill/cleanup some of the holes and maybe fit tighter engine mounts as the manifold is very close to the chassis.
You should replace engine mounts anyway when going for more power that a single turbo offers, as the engine moves around so much on standard mounts.