Just wondering how far you can port the 270 18rg head.
I have one to do and i don't want to cut up the spare head to find out.I want to go as far as i need to get the maximun flow possible but without going into any water jackets.
Will only be used for racing so high revs application as won't be going under 4000 on the track.
If any of you 18rg experts could help that would be great.
Thanks.
EDIT
Surely someone here would know how far you can go.
wut you are asking is impossible
no one can tell you such things as heat is not homogenous in a hed
why dun you measure the present thickness of the cooling walls and go from there?
too thin, the heat causes leaks as the metal changes atomic structure
Yeah i might have to do that.
I thought someone would have done these heads before and be able to tell me how far they went or could have gone.
Unfortunatly when i did a search first the pics that WITZL had posted were'nt there in his post.
Location: nth ringwood, Victoria
Registered: August 2002
Re: Porting 270 heads
Sat, 24 July 2004 12:06
just clean the ports up the exhaust is where the gains are we flowed the 2tg heads 220 222 and 260 there was not much btw them at std 200 hp 204 and 206 hp and with porting only pick up a little also the 18rg would be similar my mate done his 4 heads and much the same and thats with 440 thou lift 2tg and 18rg on aflow bench
Wed, 21 July 2004 08:00
