After my new engine install my ATS turbo has low boost anywhere from 10 to 15psi max! I've got a r&d 90cc with the WG wired shut. My pipes are sealed with no leaks. I just replaced the snail gasket thinking that was it, it wasn't.. sounds like a boost leak around 15psi but I've got none at the moment, with the old engine I could hit 20psi real easy.. something I'm missing? Any help would be great thanks guys

 

is she intercooled?

 

Nope, just studs on a new engine.. intercooler in a few months

 

well it's not a ic boot issue then.what about the boost gauge tube?

hey,i drove through your home town recently.Yosemite park to livermore.

 

Awesome!! Its a new hose lol with fittings.. scratching my head on this one, the only thing changed is a new engine

 

injector pump timing more advanced on new engine than previously? won't light the turbo like retarded timing

 

This Fel, Do you need me to send you my meter? Im going to time my Bronco as soon as I get it fired up, but after that, its free to go wherever...


2* could be worth 3psi.... What does your intake tube look like? 3" DP?

 

I'm at 6.5* intake is clean and clear with a new k&n.. should I go more advance?

 

DP is the biggest you could slide into the turbo

 

Advancing it from there wont help boost, only top end.


What are your EGT's looking like?

 

Cruising temp is around 500-600F* at 60mph 2300rpm.. stick your foot into it climbs fast. I can post a video in a few if that helps

 

did you reman the engine,buy used,or?

 

Are the bearings in the turbo good? If its side loading it wont like building higher boost. But sounds like it was working good on the others.

 

Reman by promar precision engines in NJ.. that's all they do is diesels

Yes turbo is good, the old engine was pushing 20 plus psi

 

I wonder if the seal on the up-pipe is leaking from removal?


Gotta be a boost or drive pressure leak somewhere...