Andrew sorry when i said this. > if it was a twin cam head i would make it the last thing on my engine > > > development. i meant hp development, bolt on's can do quite well now. if the head has to come off, for some reason. i would consider getting the porting done. when my motor gets the treatment with forgies etc. it will recieve some sort of port job etc. yerr around the bowls for sure.
Heath ----- Original Message ----- From: Heath <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, July 08, 2002 8:04 PM Subject: Re: Z18 Head > Andrew, how where the condition of the guides when you had your CA Head > done? u said cams approx $800 for the CA, > my mate just got his wrx cams done cost was just over $800, but that is for > 4 cams, he said it should be just over $400 for 2 cams for the CA, i'll > phone him soon about them (SURE CAMS, in brisbane), Errols wagon went from > 213kw @ wheels (sm charger, std cams), with cams it went to 239 kw's(sm. > charger, mod cams) @ wheels, the next week he went 280kw's wheels (big > charger 600hp, mod cams, 22 psi.(not o'ringed can't go higher). this is > running optimax. > run 11.6 @ 126.6 mph. he was happy with the cam power improvement. 26kw at > the wheels. My mates 8sec drag car has this guys cams in his V8 clevo. > what did you increase the valve size to? what's standard on the ca18det? > > ----- Original Message ----- > From: Andrew Denniss <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, July 08, 2002 6:27 PM > Subject: Re: Z18 Head > > > > Thats right heath but the way I look at it if its pushing the air more > > efficiently it will make better power. Top end power only made a small > gain > > with mine around 20hp at the wheels but midrange was huge all they did was > > clean up the ports a bit and pocket porting around the valves. as well as > a 3 > > angle valve job . I know steves Taylor's Z18 had some serious portwork and > > made a fair amount of power gain over the stock head the he at first run. > The > > 20% gain was with the ca18 head im unsure if the same gains could be made > from > > a Z18 > > Cheers Andrew > > > > Cleary Signs wrote: > > > > > My mates old L series turbo motor , runs 40mm inlet valves (standard) > and > > > 42mm exhaust valves. are L & Z heads same valve size? > > > if it was a twin cam head i would make it the last thing on my engine > > > development, as i've seen hi hp out of motors with no porting at all. > just > > > different cams and the right turbo. > > > > > > Heath > > > > > > ----- Original Message ----- > > > From: Tony Bryant <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Monday, July 08, 2002 11:42 AM > > > Subject: Re: Z18 Head > > > > > > > On Sun, 07 Jul 2002 21:57, Andrew Denniss wrote: > > > > > Hi simon porting your head can make a big difference in hp. When > Steve > > > > > Newing at speed technology Victoria Ph 03-98735400 ported my head > and > > > > > reseated the valves ect we gained nearly 20% more flow that's with > > > bigger > > > > > exhaust valves. > > > > > > > > Was this 20% increase on a Z18 head? > > > > > > > > > > > > > > > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
