210psi compression. wtf.need opinions

[gonzodesign]

skeeter you have zero clue on anything your answer is call cam at redline...I want some dyno proof that someone is doing this, better yet why is someone dumb enough to do this

[gonzodesign]

sstanton what happens if you alter timing and you end up with 250?

[gonzodesign]

I'll say I am not a Banshee rider, I have road racers that do not go in dirt, a 250 twin makes 85RWHP, a 500 V4 makes 185RWHP and never would any of these motors see the north side on 160 on cranking compression I am wondering why you guys do this, now if its because my buddy said it cool then ok I actually wanted some good info, I do know of a guy that spent 4,000.00 with Trinity and it was a fully ported 10 mil motor that had 200 PSI cranking compression and it made 82HP on the dyno, after special domes were made and compression was down to 160 it made 110 on the same dyno.

[pp13bnos]

82hp on a 10mil?  I'm sorry...

[hercalmighty]

If you do some research trinity is known for having crappy domes. That's why that motor ran like crap.

[bansheerider313]

trinity 20cc with the swirls.idk rpm.stock timing. 3500 elevation

[BANSHEE HP]

Gonzodesign owns skeeter

[sstaton1983]

I agree there is a limit to the compression ratio when the engine will start struggling to build higher rpms. But that is different then cranking compression. This is based on my opinions.

Edited April 25, 2014 by sstaton1983

[J-Madd]

Of course PSI doesn't always correlate to compression ratio, but I would think the PSI is what the piston has to push against each stroke. That in itself would limit max rpm regardless of ratio. JMO.

[gonzodesign]

and you J-Madd are correct, noone is running a banshee like that, and if they are they haven't a clue, is the pipe set up for 3500 rpms cause thats all that motor would be good for..but ole Skeeter knows better, I could break it down for you but I'm afraid you would not understand

Edited April 25, 2014 by gonzodesign

[sstaton1983]

I think higher compression motors have their place, just depends on what you want from it. Gonzo is used to small piston gp bikes that rev way higher then banshee's.

[gonzodesign]

a Banshee will gain nothing, zero, not 1 ioda, absolutely zilch with compression over 180 and anyone that says oh yea I have 220  I have 250 is absolutely clueless, there is no place anywhere for a 250 PSI motor unless your at sea level and are planning a trip to Mt. McKinley

[gonzodesign]

Skeeter I have got multiple messages that said you are absolutely clueless

[BANSHEE HP]

I sent at least 1 of them

[registered user]

damn you guys get all up tight about this pressure crap. soon as the engine lights up it all goes down the toilet anyways. make the engine run good when its actually running, not when kicking the bastard in the garage showin off to the fat neighbor lady