I know it's cooled by coolant. I for some reason thought you had a GTX bp-t. I apolagize. The GT-R engine changes things now. Those old Garretts are junk turbos compared to what the new GT Garrettss are made of. The purpose of the oil is to lubricate the bearings, not neccesarily cool the turbo. Oil will keep the temperature down somewhat, but coolant was used to bring the majority of the temp. down and to add reliability. Some might disagree and say that the extra coolant fittings and passage ways were prone to leaking though. I would always run a water cooled turbo myself.MechaManZero wrote:But Jay Dog. The VJ-23 is a BALL BEARING and COOLANT COOLED turbo. More advanced than the Oil cooled t3/t4 that utilizes a cartridge.
The GTR is a far better engine than ANY 4cyl Honda engine PERIOD!! Think about it, Honda made their torqeless wonder 1.6 for fuel economy for the masses. Mazda built a limited produced, bad-a-- 1.8 for competition use only. I'm sure if you're confident, you will have the upper hand here. I'd put money on it.MechaManZero wrote:Yes it is bigger but it is being spooled on a 1.6 liter engine. The compression is higher BUT with more displacement and a lower compression for safe boost, after I break this sucker in, I can turn the boost up a bit all the way up to 18 psi which the fuel maps are good for that I have heard. This kid wants to do 10 psi so I am thinking of going to 16 psi. Not going to 18 anytime soon. So at the track I will set it at 16 psi and the streets I will set it at 12 psi.
The T3/T4 is a dinosaur of a turbo. I'm so glad I got rid of mine. The technoligy is a little dated and I'm suprised that many turbo kits for other cars still use these older Garrett designs.
C'mon guy, I've been around turbo's looooong enough to know even this.MechaManZero wrote:PS: smaller turbos spool up faster.
