Alright well for starter's I have a 1992 Civic SI, with a B18C( Integra Type R) and a B16 head. Fully built bottom end with J.E low compression piston's (9-1). Eagle Rod's, Walbro 255 High Pressure Fuel Pump, RC 750cc injector's. Garrett t3/t4 60 trim turbo (18psi of boost), tial sport wastegate, greddy type S blow off valve Overheat protection(if the car get's hot the motor start's to fuel cut pretty much feel's like the car is running out of gas), tuned on eCtune by a guy named DK. And I'm probably missing a few thing's. Alrighty so here's my issue, when first tune on my car it idles or w/e and it get's warm. From there I instantly turn my heat on full blast cause if not, the heat will creep up on me, and if I boost (23 pounds of boost), my heat will get up there and quick, and my overheat protection will kick in. If I turn my heat all the way up it sit's below half way mark. When I first turn it on i let it get warm and i turn on the heat full blast and i can drive around and boost around a lot without it overheating. But if I drive my car for let's say 30 minutes straight, then just a little boost and the car's heat will creep up. Like today for example I was on the highway with my gf and this CRX pulled up next to me revved his fart can self up. Then he floors it, so me being the jerk I floor it and when my boost kicked in. I let the boost stay there for about 5-10 second's, I wasnt counted pretty much from 60-140 cause i stopped at 140( the CRX was so far back i couldnt even see his car) but when i looked at my temp, it was about 3/4 and i slowed down and did 55 down the highway letting the CRX past me, i gave it alittle gas and the heat would go up so. I got off and sat at a stop light, and even at idle the car's heat was creeping up ( my car idles at 2,000 rpms). Then before i know it down the street my overheat protection kicked in and i was puting along. Till I found a place to chill and let my car cool down. Any idea's on how to prevent my car from overheating when boost kicks in and daily driving?

 

maybe your getting headlift? you didnt specify if u had arp head bolts. have you made sure your fans working by jumping the fan switch on the thermostat housing ? are you using a stock radiator?

 

I have stock rad, and i think stock head bolts, and if i do need the ARP head bolt's would i get the 99-00 Head bolts because those come with a b16. And the fan works cause if i putmy key in the on position my fan automatically kick's on.