KR-1S.co.uk Forum

wots the benefit to shortening the inlets also would this just be on a highly tuned motor or are there gains to be had from standard . ade.

It reduces the crankcase volume a bit, it is normally done as part of a comprehensive tune (my Graham File engine has them done), I'm not sure how much it would benefit a standard engine.
Fairly cheap and easy to do, could be worth a try?

Mike

dont know if im going about this in the right order but trying to do most of the stuff first before actually porting the barrels would kinda like to leave that til last figure if everything else is working efficiantly then thats the time to port what do u think or am i just kidding myself

for the sake of satisfaction its best to go about it the way your suggesting ade, then at least get an idea of what effect mods have. things dont always go to plan though but sticking with proven routes minimises f-ups!! also if your using a dyno, you can see whats working/making more hp or lodsing hp rather than doing everything and not knowing what mod has what effect ect. have a look aty some of mj's post re matching cases/barrels. cheap effective results needing nothing but time, patience and a dremel. oh and gaskets maybe.

cheers for the advice have been deliberating for a long time over how to go about this things dont sink in as quick anymore only40 im resonably competent but sometimes need a lot of time to think about it to make sure i know what and more importantly why im doing things. have already matched barrels etc matched exhaust and more importantly took a lot of care assembling to make sure work is not wasted by sloppy assembly. i think ill shorten inlets then try it then next possibly sort the cases out that will take me ages to be sure in myself that i know where im going with it . ade.

dont forget to set the squish clearance, this can make a fair bit of difference if it's a long way out at present, at least worth a measure.