After over a year and a half, my car is finally coming back together. I had some issues with the o-ringed head sealing correctly, but after fixing that, everything is doing pretty well. Paint should be sprayed this weekend and ready to go by next week.

Mods:
2.3l Eagle stroker kit
Modified Buschur stg 3 head (O-rings removed)
Buschur FS635 turbo kit w/ cast manifold
SMIM w/ BBK 75mm TB
Buschur exhaust
Dejon IC piping
Turbo XS FMIC
4" dejon intake with MAF delete
Labonte W/I

I just ran it today to see what it would do. I didn't touch fuel or timing from the last time I tuned it. Meth wasn't spraying either.




Next time I put it on the dyno, I'm going to up boost to 30psi and lean out the AFR if needed. I'll probably need to upgrade from the stock ignition, though.

Here's some pics from prepping the car for paint:

 

not feeling the wheels...but seems like your in the right direction with the motor 578 @ only 22 psi is a monster

 

nice work Matt,

your car is going to be ridiculous when its done. Im suprised how quick its spooling too, you still using the avcr?

 

Yep, AVCR. I was a little surprised by the results over all. With all the stupid things plaguing me during this whole process, I was surprised it didn't vomit rods and oil all over the place. As for the wheels, they will look much better with the new paint.

 

whats wrong with the AFR?

 

I made no changes to the A/F since I had the stock turbo on it. I just ran it today to see how it would respond with all the changes I made. I need to fix a small oil leak, then I will get down to business of actually tuning it.

 

Why would you remove the O-rings in the head?

 

id like to know this as well..

 

So 22psi on 93 octane you made roughly 580?? What was the correction factor used? Doesn't add up

 

I usually see 580DJ at 30psi on racegas with this turbo. Interesting, was this shootout mode?

 

+1 I have made around that with 93 but at near 28-29psi.. Backed it up with some 102-105mph 1/8ths and 132 traps

 

Boost for boost on pumpgas, my 86 is currently way ahead of the curve on a local FS635. They are running C14 to make 20 more whp than me at the same boost level. Car traps 128ish I think, walking the launch.

I'd be curious to see this on a dynojet in standard correction (STD).

Congrats on having it back on the road Matt

 

The o-rings were removed because they were preventing the head gasket from fully sealing around the oil and water passages. I removed/reinstalled the head 3 times thinking it was something I was doing wrong. I was using the OEM MLS gasket as per Buschur's recommendation and torquing the head studs to 85ftlbs per the ARP specs. Everytime, though, as soon as the engine heated up, cooalnt would pour straight into the oil pan. I finally took the head to a local machine shop to make sure I hadn't warped the head. The first thing he said when he saw it was that the o-rings were too tall @ .020" above the deck, especially for a MLS gasket. I spoke with Dave about it and he said that the torque wrenches I used were off amd I should have been torquing to 95ftlbs anyway. That didn't make much sense to me, since i would have had .067" of uncompressable stainless steel between the block and the head. So, I had the machinist remove the stainless rings and fill the gap with copper. Now I have no more pissing coolant problem.

As for the dyno, it was run with a 1.12 CF, not in shootout mode. I really wasn't expecting to see such high numbers, considering all the problems I had been having. At wastegate pressure, 15psi, it put down 431, so I turned the boost up expecting to see around 500-520. When it kept climbing past that, I didn't believe it either. I thought someone had changed the CF to 1.3 or something, so after the run I checked the dyno settings to make sure they were what I normally use.

When I get the body put back together and finish the tune, I'll take it down to E-town, Junior, and you can see how it does yourself.

 

587/1.12=525 so that is the uncorrected #'s. SAE asserts that if the correction factor is above 3% it should be ignored and it is NOT to be used to compensate for altitude either. Good numbers either way.

 

Can you take a picture of that same run, but hit the space bar so the CF shows up?