AKIQPilot Posted March 25, 2019 Share Posted March 25, 2019 26 minutes ago, Skidooski said: Dude. That is bad ass. 200 psi of cranking compression is serious. Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Jimmy Snacks Posted March 25, 2019 Author Platinum Contributing Member Share Posted March 25, 2019 Just now, AKIQPilot said: Dude. That is bad ass. 200 psi of cranking compression is serious. I was going to say something about that...even my dumbass knows that is some serious compression! Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Highmark Posted March 25, 2019 Platinum Contributing Member Share Posted March 25, 2019 1 minute ago, AKIQPilot said: Dude. That is bad ass. 200 psi of cranking compression is serious. Fuck yeah it is. 1 Quote Link to comment Share on other sites More sharing options...
AKIQPilot Posted March 25, 2019 Share Posted March 25, 2019 25 minutes ago, racer254 said: Is this one better? Nailed it. Mine always reads 10 low. Maybe I should use this one. No that one is not likely to work properly on the PTO cylinder either. Use one like dooski posted. That is a good set up. Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted March 25, 2019 Platinum Contributing Member Share Posted March 25, 2019 37 minutes ago, Highmark said: Dude I know what compression is. I was making shit out of toolkit. BTW you wouldn't have any OEM pistons around for a 2000 Mach Z? I know you do I'll check and see Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted March 25, 2019 Platinum Contributing Member Share Posted March 25, 2019 16 minutes ago, AKIQPilot said: Dude. That is bad ass. 200 psi of cranking compression is serious. Just pulled my tar sled out of storage and checked the comp. Quote Link to comment Share on other sites More sharing options...
AKIQPilot Posted March 25, 2019 Share Posted March 25, 2019 Just now, Skidooski said: Just pulled my tar sled out of storage and checked the comp. Dude. That is some serious HP. Well north of 200 depending on what cc that motor is. Very nice. Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted March 25, 2019 Platinum Contributing Member Share Posted March 25, 2019 Just now, AKIQPilot said: Dude. That is some serious HP. Well north of 200 depending on what cc that motor is. Very nice. Thanks Tom. Made 240 at the crank with 52's. Stock cylinder 975cc Quote Link to comment Share on other sites More sharing options...
AKIQPilot Posted March 25, 2019 Share Posted March 25, 2019 2 minutes ago, Skidooski said: Thanks Tom. Made 240 at the crank with 52's. Stock cylinder 975cc Wow. Just incredible. That think has to run in the 9’s in the quarter? Maybe quicker? Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted March 25, 2019 Platinum Contributing Member Share Posted March 25, 2019 (edited) 4 minutes ago, AKIQPilot said: Wow. Just incredible. That think has to run in the 9’s in the quarter? Maybe quicker? It ran mid 9's before in my old shitty chassis with 48 rounds. Can be an 8 second sled in the right hands We'll see if I can get it there this year Edited March 25, 2019 by Skidooski Quote Link to comment Share on other sites More sharing options...
AKIQPilot Posted March 25, 2019 Share Posted March 25, 2019 Just now, Skidooski said: It ran mid 9's before in my old shitty chassis with 48 rounds. Can be an 8 second sled in the right hands Yea, a light drag chassis and a good rider could get that motor into the 8’s i would guess. Quote Link to comment Share on other sites More sharing options...
Frostynuts Posted March 25, 2019 Share Posted March 25, 2019 4 minutes ago, AKIQPilot said: Yea, a light drag chassis and a good rider could get that motor into the 8’s i would guess. You mean someone like bennytoomany ? Quote Link to comment Share on other sites More sharing options...
racer254 Posted March 25, 2019 Share Posted March 25, 2019 48 minutes ago, AKIQPilot said: No that one is not likely to work properly on the PTO cylinder either. Use one like dooski posted. That is a good set up. LOL I was kidding. That's just one like have that I thought I would put on to get a laugh. I have one just like dooski. Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Jimmy Snacks Posted March 25, 2019 Author Platinum Contributing Member Share Posted March 25, 2019 Cold compression...didn’t hot....look good? 1 Quote Link to comment Share on other sites More sharing options...
racer254 Posted March 25, 2019 Share Posted March 25, 2019 They are off 10lbs? Hmm, wonder why so much difference. Check them again. Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Jimmy Snacks Posted March 25, 2019 Author Platinum Contributing Member Share Posted March 25, 2019 42 minutes ago, racer254 said: They are off 10lbs? Hmm, wonder why so much difference. Check them again. Less than 10%....not too concerned. Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted March 25, 2019 Platinum Contributing Member Share Posted March 25, 2019 44 minutes ago, Jimmy Snacks said: Less than 10%....not too concerned. For a trail sled...I'd run it. But I'd also be keeping an eye in it too to see if the one cylinder continues to drop. That's decent compression in both holes with less the 10% difference so 1 Quote Link to comment Share on other sites More sharing options...
Ez ryder Posted March 25, 2019 Share Posted March 25, 2019 6 hours ago, Skidooski said: And keep in mind all gauges read differently. I have 2 and they read 15psi off from each other. I have a friend who bases what fuel to use in his race sled off of comp reading from his gauge lol I have 3 all read diff . I have 1 I always brought when buying a used sled and 1 I had out when selling a used sled 1 Quote Link to comment Share on other sites More sharing options...
Ez ryder Posted March 25, 2019 Share Posted March 25, 2019 2 hours ago, Jimmy Snacks said: Cold compression...didn’t hot....look good? run it 1 Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Jimmy Snacks Posted March 25, 2019 Author Platinum Contributing Member Share Posted March 25, 2019 Just now, Ez ryder said: run it 6 minutes ago, Skidooski said: For a trail sled...I'd run it. But I'd also be keeping an eye in it too to see if the one cylinder continues to drop. That's decent compression in both holes with less the 10% difference so Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted March 25, 2019 Platinum Contributing Member Share Posted March 25, 2019 17 minutes ago, Ez ryder said: lol I have 3 all read diff . I have 1 I always brought when buying a used sled and 1 I had out when selling a used sled When buying take the one that reads low and vice versa Quote Link to comment Share on other sites More sharing options...
racer254 Posted March 25, 2019 Share Posted March 25, 2019 1 hour ago, Jimmy Snacks said: Less than 10%....not too concerned. Nah, shouldn't be. 1 Quote Link to comment Share on other sites More sharing options...
1jkw Posted March 25, 2019 Share Posted March 25, 2019 4 hours ago, Skidooski said: Holy shit, what octane do you need to run. Quote Link to comment Share on other sites More sharing options...
Carlos Danger Posted March 25, 2019 Share Posted March 25, 2019 the irony of two strokes is most times the radically ported engines run lower compression on a gauge. An engine with stock or even low hp porting will in most cases read higher on cranking compression.. None of you guys run a Leak down tester? Quote Link to comment Share on other sites More sharing options...
Carlos Danger Posted March 25, 2019 Share Posted March 25, 2019 2 hours ago, Jimmy Snacks said: Cold compression...didn’t hot....look good? 10% rule 140 high = 14lbs difference or 126lbs. seems your good. 1 Quote Link to comment Share on other sites More sharing options...
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