hercalmighty Posted September 3, 2015 Report Share Posted September 3, 2015 Sheerider is correct. Do some searching on how to do a leak down test and compression check. A leak down tester will cost you about $25 dollars in parts and get yourself a good compression checker ( snap on, Mac, craftsman). 91 octane is way low for that motor if you are running 19cc domes. You will probably be closer to 110 octane. If you don't want to run race gas, change out your domes to 21cc domes. Are you running any advanced timing? That will play a factor in your octane choice also. Sent from my VS980 4G using Tapatalk Quote Link to comment Share on other sites More sharing options...
hercalmighty Posted September 3, 2015 Report Share Posted September 3, 2015 The leak down tester is cheap insurance. 25 bucks and a half hour of time will save you hundreds of dollars Sent from my VS980 4G using Tapatalk Quote Link to comment Share on other sites More sharing options...
Bigtex45 Posted September 3, 2015 Author Report Share Posted September 3, 2015 My timing is like 5. I was thinking with these issues I might try to run it a little retarded so I don't burn up my Pistons again Quote Link to comment Share on other sites More sharing options...
Bigtex45 Posted September 3, 2015 Author Report Share Posted September 3, 2015 And let's say it didn't hold air for 6 mins what do I do if it doesn't?? Quote Link to comment Share on other sites More sharing options...
Bigtex45 Posted September 3, 2015 Author Report Share Posted September 3, 2015 Post pics, we like carnage. Quote Link to comment Share on other sites More sharing options...
hercalmighty Posted September 3, 2015 Report Share Posted September 3, 2015 Don't do that. It will run like crap. First decide what fuel you want to run, then build from there. Once again, with 19cc domes and any amount of advanced timing, you are looking at race gas. If you want to run 91 octane, I would go to 22cc domes and 0 to +2 timing. Sent from my VS980 4G using Tapatalk Quote Link to comment Share on other sites More sharing options...
hercalmighty Posted September 3, 2015 Report Share Posted September 3, 2015 If it doesn't hold the 6psi, you have to find the air leak and fix it. Sent from my VS980 4G using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Bigtex45 Posted September 3, 2015 Author Report Share Posted September 3, 2015 I can get any type of fuel I want. I can go up to 140 octane. But what jets do I run and I want to stay away from race gas. I want to stay with these jets... Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted September 3, 2015 Report Share Posted September 3, 2015 So blow it the fuck up I don't care. You ask for help and I give it to you. Yes you do need these tools. A compression tester Wil tell you you have 200 psi of compression. At that point it's safe to say you need race fuel. But putting your dick beater over the hole will do. A leak down tester will show if you have an air leak causing a lean condition and burn up your motor. But just assume it's fine. There not important. You clearly have it figured out and you just want someone to tell you you're doing great. No one gives a fuck youre in high school. We've all been there and we all work. Get the fuck over yourself. 1 Quote Link to comment Share on other sites More sharing options...
Bigtex45 Posted September 3, 2015 Author Report Share Posted September 3, 2015 I put in a new gasket kit for the exact cool head I run. Any tricks to these to make sure they don't leak? Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted September 3, 2015 Report Share Posted September 3, 2015 And let's say it didn't hold air for 6 mins what do I do if it doesn't??Find the leak and fix it. If you're running 5 degrees on timing and 19cc domes on pump fuel that is most likely your problem. It's always safe to leak test the motor too just to be sure. Use it once? I check mine a couple times a year. If you can't afford these things, then you have no business owning a banshee. Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted September 3, 2015 Report Share Posted September 3, 2015 Like I said post pics after it blows again, we really do like carnage. Quote Link to comment Share on other sites More sharing options...
Bigtex45 Posted September 3, 2015 Author Report Share Posted September 3, 2015 It's a banshee they all blow up?? But not knowing I do own a leak downtester but not for a banshee. Am I able to jimmy rig it to fit and get a correct reading? And yes if I blow up. I will post the pictures for you since you asked Quote Link to comment Share on other sites More sharing options...
Bigtex45 Posted September 3, 2015 Author Report Share Posted September 3, 2015 And I can't order anything off the internet. I have a race has shop25 miles from me. Not hard to get gas only runs me 4.50 or so a gallon Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted September 3, 2015 Report Share Posted September 3, 2015 It's a common misconception that they all blow up. Pic of tester in question? Quote Link to comment Share on other sites More sharing options...
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