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also it is the same head your talking about which is a cone shape chamber

civicsidude i have the same problem i have the 3mm crank in mine and the spacer plate/gaskets and i have over 190psi and it detotnated like a mo fo.so for hahas i put a extra head gasket which got me to 165psi so either i get the head rechambed or put the stock crank back in it...which one is a...

what is the normal operating temperture for the bbk motor???does anyone know will help me out so i know once i get the head done

not at the moment i dont have apicture but i will soon cause i will be pulling the top end apart,getting nervous if i hurt the motor or not so im gonna take a peek anyway.its a 21.5 cc head i think its a head for doing drag racing but i should have a pic up tommorrow

so its proven now with 190 psi of compression and jetted and a 21.5 cc head and a 100 thou of squish and for a 50/50 of c16 and pump gas will still detonate so i put another head gasket with the same set up and i got 165psi of compression with the doubled up head gasket and it ran good idled...

what kind of temps should i get of of the head after a good running?

I am using the 21.5 cc head and i bought some c16 so i do a 50/50 pump gas and c16 and no more detonation and it runs like a raped ape. im happy with it for now until i have to buy c16 again it has tons of power straight across the board now

water injection on a blaster with a 50 percent water and 50 percent alcohol mix will work. i would say if you have a drag blaster yes but if its a trail bike no it would be pointless.I can say if you ran a blaster with nitrous alcohol/water injection would help cause, it would prevent...

it also depends how much power you have than id make a decision than

I got a 14t front sproket on my blaster and im always shifting lol and it has a stock rear sproket but i might go down 2 or 3 teeth on the rear sproket and try and make the gears run a little longer. im gonna use the 14t front sproket with the smaller sproket on the back but if it lugs the motor...

Please note :tire is ruff and slick does hold air wheel in good shape: which one is it ruff or great?I think this guys hampster fell off the wheel

so i cc'ed my heads just for haha's the vito's bbk head was 21.5 cc's thats way too much for my application and i also cc'ed a stock head which was 25 cc's which is more ideal for my application.I just need to send the head out to someone who knows with my mods how much to cut for squish...

its not that lean it is rich but until i get the head rechambed im not messing with it anymore.Im also gonna send it out and check prices and get info from companies before i send the head out to get rechambered

so a 30cc dome should be plenty enough to drop compression.what do you think? i did notice that on a stock blaster motor the piston is 20 thousands in the hole when at tdc but with the stroker crank i am all the way up on the cylinder at tdc

for jets i have a 37.5 pilot,needle is set one clip down from stock and it has a 360 main jet. i also have the airbox lid off,the plug is black and the porcelin is a little tan

i also think the stroker crank didnt help any being the piston is further up on tdc so im just gonna mill the chamber but does anyone know how much should i take out of the chamber like 10,20,or 30 thousands or should i cut it and cc the head for every cut?

it is the vitos head and not a stock chamber it is alot bigger and more aggresivie. i just think someone milled the head.so im just gonna sink the chamber and bring the compression down some

also i think the head has been milled cause they're is barely a ridge from the dome of the head and to where the head seals to the gasket

yea im using the 1.5mm spacer and the two gaskets but i think my problem is the head.I think if i took the stoker crank it wouldnt detonate cause it would drop the piston 3mm in the hole so the compression wouldnt be so high than but im not changing cranks now id rather just change the dome in...

i really dont have the funding for race fuel myself so thats why i was thinking about milling the head chamber and lower the heads cc's i know that with race fuel it would be retarded fast but i dont wanna spend 70 to 150 bucks in race fuel just to enjoy my weekend on my bike. so being they dont...