Not sure I'll actually try this, changed out my 56x86 for a cast 60x86 and its so much better, to take advantage of the 66mm I'd have to have my IP fuel curve changed, which I am not interested in doing.
Are you measuring drive pressures? Out of all the compressor wheels I've tried, the stock cast 60x86 has been the best, cleaned up all my smoke and off idle, tons of power. I haven't really revved it out yet as my engine is making some weird noises and need it to last a few more months. The...
Yes and no. I gave up too much down low and midrange but up top, it would let my engine rev like a 2 stroke. I didn't check DP readings so that might have something to do with it. A DSM Holset guru told me that wheel is a high pressure wheel meaning it needs to see 30+ psi to really wake it up...
This is the lowdown on the GEP, its no longer cast by Navistar. I am waiting to hear back to see if there are other markings to make sure its a GEP over a chinese casting.
I used Permatex thread sealant and my last oil analysis said I had coolant in the oil? I just checked the bearings, mains were good, rods weren't that bad considering they weren't that bad when I put the turbo on almost 2 years ago. They had lost their crush so I replaced them anyhow.
When I...
The P400 are solid, the Optimizer is supposed to be dotted. Ted's has a brand new Optimizer they say is legit but it has solid lines but no Navistar symbol. I emailed GEP to see what they have to say.
The dots still exist AFAIK, the only lined version you mention is on Ted's and we think that's not a real GEP. Never heard of any GEP having first year issues, they were fixed from day one of the retool.
Oil passages or cooling issues, didn't hear that one either, have to go digging, :(
Still...