TEA 1.5s
I think cometic can make you a gasket for whatever thickness you want. The problem is your compression is going to take a hit. Flycutting isn't really that hard to do. Are you going to have the engine in or out of the car?
Have you measured anything yet to even see if you need to cut?
Have you measured anything yet to even see if you need to cut?
Thread Starter
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
Engine is in the car and running with the Trex and 317s milled .030
I am spraying the engine and dont want to weaken the slugs with fly cutting, i know no one that sprays with fly cut pistons.
I am spraying the engine and dont want to weaken the slugs with fly cutting, i know no one that sprays with fly cut pistons.
I read there are many people that spray with flycutting. I am going to spray 100-125 on mine. I just made sure there were no sharp edges after I cut to minimize detonation.
How much are you spraying?
Also I might have missed it but have you taken the heads to a machine shop to have them check to valve drop on the intake valve and compare it to a stock set of heads. I have that some people didn't have to cut with these heads so maybe you will get lucky.
Thread Starter
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
No tellin right now, but i dont have the heads, that is why i am asking because i may hold out for a set of 243s/799s that i wont have to fly cut with.
I will be spraying 200.
I will be spraying 200.
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Wait so you "think" the dish magically makes it so you don't have to flycut? My flycuts cut into both the dished part of the piston and the outer edge....so you will have clearance issues there. No issues with spray and fly cuts FYI, just sand down the sharp edges and you should be golden.
thicker head gaskets are going to mess up quench distance, causing hotspots, and detonation...ptv clearance will still be an issue, and you'll spark knock like a sucker...just do the work right the first time.
Thread Starter
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
Nope, stock LQ4, they see 16 pounds of boost, some times 18 stock, what is a little old 200 shot? Have sprayed 250 on stock LS1s with no issues, no biggie.
Dont think anything, asking questions and the fact is a dish piston gives leeway on PTV.
Hitting motor on N2) with the domes removed has made them weak and go bad, but that was forged, i dont think a stock piston would do much better.
Stock is .051? So going to .58 would be that big of a deal? I would hope not. Doing it right the first time seems to mean **** the TEA 5.3 and get a damn 243 that will work for sure with no fly cutting.
Wait so you "think" the dish magically makes it so you don't have to flycut? My flycuts cut into both the dished part of the piston and the outer edge....so you will have clearance issues there. No issues with spray and fly cuts FYI, just sand down the sharp edges and you should be golden.
Hitting motor on N2) with the domes removed has made them weak and go bad, but that was forged, i dont think a stock piston would do much better.
Stock is .051? So going to .58 would be that big of a deal? I would hope not. Doing it right the first time seems to mean **** the TEA 5.3 and get a damn 243 that will work for sure with no fly cutting.
Did you check piston/valve clearance? Or are you doing this all off of a hunch that it "clears" just because the motor spun over?
just toss on some 799/243 or ported ones and fly cut. Probably had 100 bottles through one car with flycut pistons at .080 cuts with no issues. 150 shot with a GOOD tuneup on it. That means not running it excessively rich like 90% of the nitrous kits out there are setup out of the box.
well since you have ALL THE ANSWERS, why even ask questions?!?! since you seem to think everything will work "good enough" then just ******* put it together and when that **** flies apart we can all say "told ya so".