Sunday, December 24, 2006 - 09:53 am, by: Richard Johnson(92soarertt)
Pump gas or race gas for 500whp? That matters.
If you want 500whp @ high psi using race fuels (25-30psi), you can get away with a 60mm unit (GT35 for example). You'll still be around 350-400 on pump.
If you want 450-500whp on pump gas(20psi), your going to need something along the lines of 65 to 70mm turbine (like a precision turbo PT-67)
Sunday, December 24, 2006 - 05:21 pm, by: Wayne Peterson(177)
yes i was looking at getting the gt35 with 0.82a/r, i have heard that vvti exhaust manifolds are different than the non vvti who sells them in australia as i will probably have to top mount this turbo to get the room,
Sunday, December 24, 2006 - 06:34 pm, by: Dean Carsen(Deano)
The vvti motors are nowhere near as strong as the early 1j's . That horse power will more than likely kick a rod out the side, as the japanese have found out.
Monday, November 08, 2010 - 12:47 am, by: Harley Jones(Dvjzz30)
wayne theres not a chance you will get 450-500rwhp from a 2540. the hks equivilent on my 1ggte bmw was absolutely max chickens at 330rwhp. intake temps went through the roof and i had to add water injection to calm it down. you have to remember that rating is what the turbo is able to flow. take into consideration that your engine isnt 100% efficient, and your drivetrain losses and you will be pushing hard to make 350rwhp with a turbo that size. go for a gt3082 with a 1.06 rear if you want 450-500 rwhp.
Monday, November 08, 2010 - 12:51 am, by: Harley Jones(Dvjzz30)
just thought id add for reference
my non vvti 1j is making 430-440 rwhp .gt3082 with a .82 rear, 22.5psi on pump fuel. its using a walbro 255lph pump, emange ultimate and my injectors are over 95% duty cycle at max boost (not the sort of stress you want to put on them for long)