twojztt Posted December 25, 2006 Report Posted December 25, 2006 would a .20 over stock base gasket lower compression in both cyl. slightly Quote
locogato11283 Posted December 25, 2006 Report Posted December 25, 2006 im sure it would. what are you trying to do exactly? Quote
twojztt Posted December 25, 2006 Author Report Posted December 25, 2006 (edited) im sure it would. what are you trying to do exactly? well i put my motor together new pistons ported cylinders 34mm carbs vitos exhaust kn filter 19cc domes v force reeds,plus 5 degrees timing and i got 150 psi kicking presure.Dont i want more compression i will run race gas.bogs some from the get go but does not pop or bog top end just does not feel as fast as i expected. vitos sent me a .20 over base gasket so if i run smaller domes wont it bring my compression up? Edited December 25, 2006 by twojztt Quote
Bansh-eman Posted December 25, 2006 Report Posted December 25, 2006 running smaller domes will bring your compression up, the .020 over gaskets isnt going to lower your compression by much... a few lbs... if your running 150 psi you can probly drop one more size and be around 155 or 160 and be perfect for race gas... Quote
twojztt Posted December 25, 2006 Author Report Posted December 25, 2006 running smaller domes will bring your compression up, the .020 over gaskets isnt going to lower your compression by much... a few lbs... if your running 150 psi you can probly drop one more size and be around 155 or 160 and be perfect for race gas... what if i drop 2 more sizes?170 is desirable isnt that kinda where you want to be? Quote
Bansh-eman Posted December 25, 2006 Report Posted December 25, 2006 it doesnt really matter what your comprssion is... as long as its not low... when its low it means your do for a rebuild... but adding compression when its not needed.. like in a relitivley stock or partialy modified motor is nothing but a waste... all you do by raiseing your compression on a motor that doesnt need it ,is to force you to run higher octane fuel.... unless your running a pretty heavy modded motor you dont need alot of compression or race gas... so at 150 your motor with what you listed is pretty much deadon... adding un-needed compression is pretty much pointless. Quote
2003LimitedBanshee Posted December 25, 2006 Report Posted December 25, 2006 it doesnt really matter what your comprssion is... as long as its not low... when its low it means your do for a rebuild... but adding compression when its not needed.. like in a relitivley stock or partialy modified motor is nothing but a waste... all you do by raiseing your compression on a motor that doesnt need it ,is to force you to run higher octane fuel.... unless your running a pretty heavy modded motor you dont need alot of compression or race gas... so at 150 your motor with what you listed is pretty much deadon... adding un-needed compression is pretty much pointless. No offense intended, but how do you add "un-needed compression"? Adding un-needed octane as I've heard many do before, is of course, un-needed. But, until an extreme, where too much compression can actually cut performance, added compression is performance. You have to make other appropriate changes to compliment the added compression, ie. fuel octane, improved cooling, hotter spark in many cases. But added compression is a mod in of itself. Probably one of the few scenarios I can think of where added compression would be a waste, would be on an airboxed, stock pipe motor; otherwise, give me the compression. Now, if you would have said that you could take better advantage of the added compression with further mods, I'd be all for that statement, but to say that adding compression is nothing but a waste unless you have a "heavily modded" motor I would have to say is false. Quote
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