My Talon

[sleepydsm]

I might just have twin walbros, bulkhead fittings out of sender to a y block, -8 to rail.

I can't find 1/2" hardline anywhere. wtf?

[Swifty1638]

twin 255's or 310's?

Hardline shit I got from jegs or summit. With the fittings. It's aluminum.

[turbotalon1g]

You dont need to upgrade the line, plenty have made more power on E85 without changing the lines.

[Constant_Project21]

Are you doing anything different turbo wise this year? I recall at the dyno day, you mentioning something about changing it up a bit.

[goodhart]

Hey Kevin, what do you think is causing the turbo to keep going to poop?

[sleepydsm]

Hey Kevin, what do you think is causing the turbo to keep going to poop?


I don't know. Lots of people on tuners have a theory of too small of oil drain, but I think that is bs. It's -10an. thats 5/8". And it's not from lack of oil, no signs when disected.

I might just have to get goat blowers 3575. But then I'd need a new 02 housing, change my IC pipe, intake, etc.


I will do some investigating. I'm getting a -4 inline with an 1/8npt fitting for an oil pressure gauge. I will also just make a much larger drain with like copper pipe or something.

[goodhart]

I'm getting a -4 inline with an 1/8npt fitting for an oil pressure gauge. I will also just make a much larger drain with like copper pipe or something.

Let me know what kind of fitting you end up getting, I want to run an oil pressure sender off the feed of my new turbo also. I am feeding off the head, but I still want to be able to know what it is.

[4g63tcrazy]

Posted it before and I'll post it again! Seeing what your oil pressure is that's entering the turbo is a very good idea.

This is your answer. Don't guess. DSMs kill SO many journal bearing garrett, BW, holset turbos. Because they are all more sensitive to oil changes and especially over oiling. And DSMs change their oil pressure per setup, rpm, motor build, oil pump age, Bshafts, oil pump years, oil cooling, hair part, shoe lace orientation, etc. FAR more than any other engine on the planet. PTE has a bad rep because of sh!tty DSM oiling problems. Its DSM oiling that sucks, not PTE (AKA garrett center sections). It's not the manufacturers fault. Its the haphazard, random oil pressures that dsms run on various setups.

Use any gauge: oil gauge, old fuel pressure gauge, old air compressor gauge, old water pressure gauge for home water feed lines, who cares. Get SOMETHING on there after the lines and restrictions to actually see what your oil pressure is. Rev the motor in neutral and find out the oil pressurea at idle, theoretical spool up rpm, and peak oil pressure (should be at redline). Per the holset repair manual for the hx35/hx40: Warmed up, the oil pressure for the hx35 and hx40 should be no less than 10psi at idle, and no more than 72 psi. It should be no less than 30psi at spooling time and after. A bolton hx35 sees 20psi at about 3700rpms and spools damn early so you had better have 30 psi at 2K or you could be eating turbo bearings. An bolton hx40 sess 20 psi as early as 4K on a 2.0L motor. Check your oil pressure. As stated, you MUST have 30psi during spooling up conditions with these turbos. And you cannot have more than 72 psi pressure at full song.

[turbotalon1g]

Also note that the stock drain on these holsets is a lot bigger than 5/8

[sleepydsm]

If i remember right, my drain hole wasn't that big.

And If anything I'd be over pressurizing the turbo, not under. There was no signs of lack of oil pressure when taken apart.