Hey guy's Scotty Here From Mofab llc. Our customer's car 60k odo 30k on block (see mofab llc int the shop builds section) Has developed some issues. Our Shop does not assemble lower rotating assembly I leave that to the experts. (We stick to Developing Forced induction design) I do however assemble engines from the short block up. Our customers car came to us after being passed around some local shops in the Colorado area. The engine seemed solid. as it had been boosted for quite some time, Cp 8.5:1 manley rods not sure on bearings ARP Studs. After our new turbo setup GTX35 and bigger power E85 17psi 600whp 630tq on a dynojet. The car ran great but would get hot. Seemed to get worse, After a coolant test w high carbon, we decided to pull the heads for fear of a head gasket failure, Which was evident by the bubbles coming out of the coolant burping bottle. Upon further investigation the timing chain was almost completely wasted because one of the tensionors seized in full out position stretching the chain and wore all plastic guides through. Missing o rings for oil control of the cam phasing and wrong bolts placed here and there. Basically total loss was emanate if we hadn't tore her down. The machine shop told us the heads were warped. I also noted that the piston rings looked like they were gaped loosely, and the piston to wall clearance seemed large. I told the customer we should do a complete tear down and inspect the block for cracked sleeves/ or warped deck. He didn't want to.......of course i told him that was a bad idea but none the less we reassembled.
After we got the heads back w fresh valve job we did the following.
Completely new timing components and water pump.
Cosworth head gaskets
New Gaskets where applicable
Of course after the the car was put together she ran better than before but obviously with the tighter top end and loose bottom she consummed oil. No smoke tho.

I knew the car would use oil and made it evident to the customer again before we went together this needed to be done but again he told me to reassemble.

The real problem were having is the car still runs hot. We've tried everything. It doesn't push coolant at idle. or under load but does get hot. so hot that after a drive when u park it it boils over. I checked the block w a straight edge and didn't see any warpage while we were in there.
So now after all this the customer wants to tear it back down Buy a new short block and basically start all over. Im so frustrated with the car. I know there's a right way to do things and that would have been to tear it all down but again the customer didn't want to. I don't like taking peoples money twice for the same job but the customers always right.

This is what were doing now, and below is what we already have done.

New short block
New gaskets ect.
Possibly a smaller A/C Condenser
New Head Studs
What gaskets for the head?

Here's what the car currently has E85
Built block cp's manley ARP
Nismo cams
Fresh Heads/Valve Job
Coswoth head gaskets>>>>>>Are These BAD?
Koyo Radiator W Mishimoto fans But One Is upgraded to a 14"
Mofab llc GTX35R w FMIC 24X3x12 core Turbo sits by drivers headlight
3" Exhaust
Everything i mean everything is wrapped for heat protection EVERYTHING
Stock hood
Stock Bumper
No aftermarket oil cooler

Compression 90 first puff 115 across the board. on old engine

Here's what i think The block is either warped and my straight edge test wasn't enough to catch it or there is a hairline crack in a stock sleeve?
Whats the limit of an un sleeved block Wheel Horse Power/ Boost.
The customer now wants to do away with his built lower end and buy a new off the shelf short block from a z engine builder, I say we have his block checked (assuming you can do that? as in guarantee that there aren't any cracks, Have it decked/ honed, toss in some new pistons ( i want his compression bumped back up) and bearings and save him some money. Obviously were trying to solve two issues now. The customer wants 600whp reliable E85 by the way, No cooling issues, Wants to keep his A/C and run it on hot days w out overheating while just driving normally.
WHAT DO I DOOOOOOOO

Im Asking you all cause your the experts

Scotty
Mofab llc

 

tl;dr looks like other post you just made.