andrew, i dont really plan on doing much of the work myself, as i dont really have the time, equipment or knowledge. im willing to pay someone to do it for me, but b4 i start getting anything done i want to know exactly what should get done.
so it seems to port out the 1.8 is the way to go then? is polishing worth it? anything else i can do? cheers, ryan >From: andrew smith <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] >Subject: Re: 1.8 VS 2.0 ltr head >Date: Sat, 09 Mar 2002 07:11:51 +0800 > >Ryan, >I assume you mean a closed chamber L18 head compared to the open chamber >L20 >head.Both heads can be modified to suit and probably depends on what you >can >do yourself and/or how much your willing to pay someone.Using a closed >combustion chamber is the way to go which means the L20 head would need to >be >welded up and machined which can be costly.The L18 head would only need to >have a bit of deshrouding in the chambers.The L20 head generally has larger >ports than the L18 head to start with but both would require porting.If >your >attempting to do the porting yourself i would suggest trying to find >something to copy.The last head i did i borrowed a corroded out head of >someone that had come off a 200hp L20 and copied that.If you havent done >any >porting before, do some homework first.Ive seen plenty of people stuff up >good heads.I would also get a hardness test done on the head before i >started >anything. >Andrew Smith > >1600 BoY wrote: > > > hey list, > > im stumped at which to choose between the 1.8 or the 2.0 ltr. > > currently i got a L20, with twin 45s on the way. plans include big cam, > > clutch, and match ported head. > > now i have both a 1.8 and a 2.0 head spare. ive been told some different > > stories but dont know which head will best suit the application. im >under > > the impression the 1.8 raises compression, but if u shave the 2.0 will >it > > also raise the c/r? > > i also plan to get 280zx valves(44mm) but i dont know which head. > > IE if i do the same mods to the 1.8 and 2.0 which will benefit better? > > if the 2.0 is ported could u get it ported more than the 1.8, ie is >there > > restrictions on the 1.8? > > > > any other mods i should to to the head at all? > > thanks list, > > Ryan Ottens > > > > _________________________________________________________________ > > Chat with friends online, try MSN Messenger: http://messenger.msn.com > > > _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com --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]/ ---------------------------------------------------------------------
