car sounds like it misfires at 3lbs of boost??!

[my89supra]

i have an 89 supra turbo stock... my car is in the very slow process of restoration... my problem has me baffled bc im no expert with cars...,

about a week ago my car had been runnin great... until i blew a heater hose... i never let the car over heat or go bone dry... i immediatly replaced the hose and refilled the coolant and as i was drivin home the car started actin funny when i tried to get on it... at about 3lbs of boost it sounds and feels like a cylinder cuts out and i lose acceleration and power... over the last week i've noticed that when the engine is cold it runs normal but once it heats up it has the problem again... i hav no clue wat the prob could be and would like to know if anyone else has had this issue occur

 

[Dirgle]

Sounds like you got coolant down in the spark plug valleys, use some compressed air to blow it out.

 

[my89supra]

ok... i plan on doin a compression test to see if there is anythin wrong when i go to change the plugs..

 

[Kai]

THIS IS NOT AN INTRODUCTION THREAD. Moved to relevant section.

 

[my89supra]

so last night i went and got what fluids were in with the plugs out and took it for a test drive only to find the problem is worse now and the boost dosent seem to be involved now ha..

 

[my89supra]

did the compression test yesterday... cylinder 6 had a lower compression.... and after the compression test the car ran like normal but today the problem started right back up...

 

[Chaingun]

How low was cylinder 6 compared to the others?

 

[my89supra]

the others were at 150 and cyl 6 was 110

 

[Chaingun]

That's not good, but there's a few things that could cause that on some motors. I'd do a few more tests before screaming BHG but it's a possibility

 

[my89supra]

yeah sux tho bc its so cold out now and i dont have a garage to do work so im kinda beat for now...