valve guide height ?
Turbo Mini Forums

any one an idea what height to set them above the casting using avonbar phase 2 ?

rob

http://www.fishfight.net/

I always press them in using the thickness off a 2p coin as a guide for how far they protrude above the top of the head face.

I press them so that only the taper of the guide is above the top deck.

you have .400 lobe lift on the exhaust so times 1,5 = .600 plus some extra room for seals if you want them on the exhausts and a safety margin .measured under the topcap fitted to the valve to the top of the guide. you end up with something akin to what vegar does . i would consider keeping the intakes a bit further out (as it lifts a bit less : less sticking into the port but still full lenght guide ) but you do need the extra room for the seals there .

That sir, is not rust, it is the progressive mass reduction system

http://aseriesmodifications.wordpress.com/

nope thats not right,

400 thou is with 1.25 rockers, so the lobe lift is about 320 thou... or with 1.5's in the order of 480 thou valve lift.

Was gonna say 600lift on a mini yikes

i got the number somewhere quick . did not read properly and assumed lobe lift. I did think that it was quite a lot but went along anyway ( no beer involved). sorry bout that

Edited by Sir Yun on 16th Aug, 2014.

That sir, is not rust, it is the progressive mass reduction system

http://aseriesmodifications.wordpress.com/