corrupt Posted March 7, 2006 Author Share Posted March 7, 2006 i already have a good compressor, so i might buy a little grinder thing as you guys say and have a crack at it myself, i just never thought of that as someone once said to me that they had to be "cc'd" or something and only the pros can do that. but come to think about it, thats only probably for the hardcore race engines like balancing n shit. Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted March 7, 2006 Share Posted March 7, 2006 cc'ing isn't as difficult as you would think. they just use parrafin oil etc and check that each port holds the same volume don't they? although that's more for when you're grinding at your combustion chambers i thought. just give them a quick tidy up, removing all the sharp edges etc. just be careful not to mash the valve seats or anything... maybe chuck an old set of valves in just to prevent that?? see if you can get it run up on a flow bench before and after to see if you've made much difference Quote Link to comment Share on other sites More sharing options...
davidian Posted March 7, 2006 Share Posted March 7, 2006 make shure you have another head in case you fuck it up and loose performance Quote Link to comment Share on other sites More sharing options...
Chrome_GT Posted March 7, 2006 Share Posted March 7, 2006 If you haven't already- Go get the David Vizard book on 'How to modify your ford ohc'. I used his mini book as a guide. I have the Dave Hamill book but it's not really as good as the Vizard book from memory. I still haven't managed to pick a copy up for myself yet so let me know if you find a supplier. It will tell you where to remove material from. The books go into pretty good detail so have a read. It''l build your confidence before you have a go. cc'd is just for combustion chamber as far as I know. It's basically to ensure you'll have the desired compression ratio. If your remove material from your chamber without a head skim you'll reduce the c.r. and lose power. You'll still need pros to regrind valve seats and skim the head. The rest you could probably do with the right tools and information. Quote Link to comment Share on other sites More sharing options...
davidian Posted March 7, 2006 Share Posted March 7, 2006 theres a guy selling the book brand new on TM for 79.95, a bit dear but yeah... also available from Burton's Quote Link to comment Share on other sites More sharing options...
RT Posted March 7, 2006 Share Posted March 7, 2006 there is no point in just attacking your head with a grinder thinking you know what you are doing. It's most likely you will make it worse. If you want to do it yourself it's vital you actually research the head you are porting and find out where the problem areas are. Every head is different. For a pinto you can pick up good gains rounding off the short side radius and the valve guide boss on the intake and the short side and sharp curve on the exhaust port. Combustion shape is another important area like valve shrouding etc. If you are going to do it do your homework eh. Quote Link to comment Share on other sites More sharing options...
Eskorted Posted March 7, 2006 Share Posted March 7, 2006 some good advise there rt. i was thinking about doin this myself but after weighing up all the effort, is it even worth it? what kinda of increas are we looking at after just smoothing off the bits you mentioned?? Quote Link to comment Share on other sites More sharing options...
Gaz Posted March 7, 2006 Share Posted March 7, 2006 Remember a good pinto head and a bad one would have over 50hp performance differance. Pinto heads suck balls standard. I cc'd my 1600 pinto head. Basically it just tells you the compression. If you cant find a write up on it on the net I can post up. Quote Link to comment Share on other sites More sharing options...
Eskorted Posted March 7, 2006 Share Posted March 7, 2006 yea could u gime a link or something? ive got a 1600 head just havnt found enough info on porting/valves/skimming to do to it.. Quote Link to comment Share on other sites More sharing options...
Guest kris Posted March 7, 2006 Share Posted March 7, 2006 as for the hardned seats, I wasn't prepared to risk one dropping into my 6 grand engine and fucking it! I haven't seen a lot of valve recession with the pintos, I believe its because of the type of quality iron used. some engines wear out others don't. It's just not an issue, I don't expect my engine to be working in another 25 years. lol Maybe so, but I don't like bits of seat sticking to my Esslinger valves. I've had seats in engines for years with no problems... My engine ain't cheap either. Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted March 7, 2006 Share Posted March 7, 2006 deffently get that book 'How to modify your ford ohc' by david vizard. a whole book on every aspect of pinto performance including port shapes. Has cross-section views of standard verses different stages of porting with flow comparasions. its a good guide and he knows his stuff. 1st rule - old cunts know there stuff. and rt, what kind of clutch set up r u running in capri? i got the cortina running good as but the clutch cant take it once outa 1st gear. Quote Link to comment Share on other sites More sharing options...
RT Posted March 7, 2006 Share Posted March 7, 2006 just a heavy duty ceramic centre with a heavy duty pressure plate with progressive springs.. it's not too bad and it as good as you can do before going for a brass button centre.. kris.. fair call but I'd rather have a little head stuck to my valves then a big ring stuck in my pistons lol. Quote Link to comment Share on other sites More sharing options...
Raizer Posted March 7, 2006 Share Posted March 7, 2006 . Quote Link to comment Share on other sites More sharing options...
Guest Sub Posted March 7, 2006 Share Posted March 7, 2006 Heydoes any one know a good place in Wellington i can get some head work done???? Quote Link to comment Share on other sites More sharing options...
RT Posted March 7, 2006 Share Posted March 7, 2006 Not quite, theres also carbon and kevlar clutchs. More grip than a ceramic, Less shudder/jerk than a brass button. yes true.. thats what i need! Quote Link to comment Share on other sites More sharing options...
Gaz Posted March 8, 2006 Share Posted March 8, 2006 Heydoes any one know a good place in Wellington i can get some head work done???? Kerry Lindsay Engine Reconditioners 12 Regent St Petone Lower Hutt 0-4-568-5803 Facsimile 0-4-568-5447 Upper Hutt 5 A Jupiter Gro Upper Hutt 0-4-527-7857 Facsimile 0-4-527-9131 20 Prosser St Porirua 0-4-237-4808 Facsimile 0-4-237-5238 Knows pintos from memory. Quote Link to comment Share on other sites More sharing options...
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