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Very true IJ. And a/f ratios have alot to do with knock. Those who believe in runing 11.* a/f on race fuel, I'm curious what you think of this article: http://www.innovatemotorsports.com/resources/rich.php Dennis

I tuned with the 110oct today and here is what I found out. I hit fuel cut at 24 psi. I backed it off to 23.5 psi and didn't have any issues. Most of what I read told me to tune for 12.2-12.5 afr. I made an executive decision and set a goal for 12.3 afr while monitoring egts. My max egt is...

I searched this topic because I thought this would have been a topic covered many times but I'm not having much luck. And the information that I do find is conflicting. On 93 oct: 7mgte, 440rwhp, 18psi, lexus afm, 550cc, .70 a/r SP61 turbo i shoot for 11.7afr at max psi. I'm on 110oct...

A/C doesn't kick on. Blower fan doesn't kick on. Already replaced: fan resistor, blower motor, a/c controls. Something missing here behind the passenger side panel? (to the right of the green relay) Thanks, Dennis

Thanks guys. I tried to keep the music as mild as I could. My camera is great at photos, decent for videos and terrible for sound. I could have kept the video sound if you wanna hear tons of wind noise. I kept as much as I could. I'll try again with a different camera. The headlights are...

This is my first attempt ever at making videos. It turned out fantastic. http://www.youtube.com/watch?v=e4yT4zDHPkM http://videos.streetfire.net/video/1990-Supra-Turbo_180505.htm

Add me to the list. 440rwhp/431wtq - 7m, 93oct, sp61 kit, tial, HPF intercooler kit, revv valves, je/eagles, 3"exhaust, spec3, fidanza flywheel, 550cc, lex afm, safc2, avc-r

I just had the same problem. I was -10mph constantly. I must have hit the needle when I was installing another guage. The needle is adjustable, just turn it. Dennis

I did find a block locally. Its the older block though. If it has no cracks, would you feel comfortable running 550hp?

ah i see. So for sure too late for this block? I did have this block "cleaned" by the machine shop. I can't be more detailed than that. I then put about 3000 miles on it with the bolts. Then I switched to studs and put on 500 more miles with the studs. I need a list of stuff to do when I...

that would be a no (by me). But it had ARP bolts installed by the previous owner. I replaced the bolts with studs.

I can't find that thread were you show the earlier/later side by side.

550hp

opps...coolant passage. :)

Yup you called it. Now how to fix it...

LEAK FOUND! Ok, I pulled the engine/trans out of the car to further inspect it. I didn't find anything unusual at first but then I notced the front freeze plug was a a slight angle. It looked like it still made a good seal. To further test, I capped off the water pump inlet and filled the...

no coolant in the cylinders. no coolant in the top of the head. no coolant anywere it wasn't suppose to be. The front freeze plug? I don't think its been changed out since i had the motor. I replace two on the side that were blown out / coming out.

no, not that i noticed.

First make sure the ground wire on the coil packs is complete and not loosen. Replace the coil packs if all wiring is good.

I pulled the head. This job used to take a few days for me. I got it done by myself in 3 hours and 33 minutes. I was too exhausted to thoroughly inspect everything but I think I see something. What do these cracks look like? THis is the only thing I see so far. I will do more inspecting and...