busa piston swap

hasa anyone done the busa piston swap just need to get a few horses out of my and have got a set of busa pistons ready to go in so if any of yopu guys know how and what to do it would be of great help.

cheers ant

[yorkie_chris]

That mean you have bought 4?


You need to get jugs honed couple of thou to allow for greater expansion of forged.

I do not think they add any power but they are lighter and while you're in there you can reduce head gasket thickness for higher CR

[squirrel_hunter]

I will be doing it. If I ever get my crank back from the engineers.

As YC said the barrels will need to be honed out by about 2 thou. This shouldn't cost you to much.

i just need to gain about 3 meters on a guy at the race track down the straight after keep over taking him on the brakes and it gets a little scary at times i have tried diffrent gearing and seem to have the best for the job. I have had the cams done at kent and flowed the head so just trying to think of what else i can do just to gain that bit extra i have only 2 pistons did buy a set of four but sold 2 on ebay for about a quid i think.

[fastdruid]

Anything SV related its best to stick it on ebay and a link here in the 'for sale' probably have got more than a £1 that way

Druid

Originally Posted by antony

i just need to gain about 3 meters on a guy at the race track down the straight after keep over taking him on the brakes and it gets a little scary at times i have tried diffrent gearing and seem to have the best for the job. I have had the cams done at kent and flowed the head so just trying to think of what else i can do just to gain that bit extra i have only 2 pistons did buy a set of four but sold 2 on ebay for about a quid i think.

It could possibly be that your compromising your exit speed by being too late on the brakes. People try to make up time on the brakes and will exit slower than someone letting the bike run in to the apex quicker by letting the brake off earlier, getting the bike turned quicker pointing to where you want to go and getting on the gas sooner. I learnt this very quickly in my first british supersport race at brands gp last year. On the 600 corner entry is as key as corner exit..on a well setup SV you can run mega corner entry.

Failing that tightening the squish works very very well on the SV.

[yorkie_chris]

What you tighten it to?

Originally Posted by yorkie_chris

What you tighten it to?

Enough to make it go better

[yorkie_chris]

Hehe worth a try

Tighten it till piston hits head, then back off a bit

yeah i understand running in faster i do not seem to wake up in race til about 3 laps in then battle back from about sixth the braking thing always seems to happen last lap last corner in a desperate attempt to nab second normally but being behind the other guy he just seems to have a tiny bit more on the straight