does anyone have any tips of porting/polishing a head on a 16v. I really dont know my car engines and wondered if it was just straight forward. i always take the heads off my dirtbikes, get a dremel and polish the insides making it all nice and smooth. is it the same for a car head? can i just take it off and clean it up. will i notice much of a difference like i do on my dirtbikes? is polishing/porting the head the same as gas flowing?? sod this engine conversion stuff....i wanna tune my valver up and drive it into the ground
Does anyone have a good link with pics on how to do this as I would be interested in having a go at doing it sometime.
Nah recardo mate 2 stroke are a peice of urine compared to a 4 stroke engine mate. Have a read here. Give you a good step by step. Link to SA Motorsport DIY guide Edited by: DuBDuDe
don't get a proper one most vw heads are done by the same guy, and sold through DD, stealth, TSR, etc get one of his.
what so you recon by a whole new head?? to be honest i didnt want to make wholes any bigger, just clean and polish to stop carbon building up. the seats are soo nice. couldnt live without them. i can see why there so expensive now. so porting is making wholes bigger whats gas flowing??
gas flow/ porting all the same bigger is not necessarily what is best, and remember that air does not just travel in 1 direction, it pulses in the inlet manifold read the pumaracing site on cylinder heads some good info along with some tripe about RR losses
elie do you guys work on anything other than 20vt's? would be so much easier coming down to voodoo rather than going to stealth.. Edited by: RECARDO
You can do it yourself, its going to be far more work than doing a 2stroke MX head though. I spent about a whole week on an 8v head, and looking at the 16v head I rebuilt recently, feck that, just save yourself some money and buy one unless you have plenty of time on your hands. Plus the proper 'bought' heads will give you much better gains as they have been setup on a flowbench etc.
A proper one isnt 'that' expensive for what you get is it....... And if you go direct to the guy ratehr than through one of the comapnies you can save a fair bit..... (i assume everyone is talking about a blydenstein head?) What the waiting times on getting a head done anyway? Do they do em on exchange or is it acutally your head that gets done? Just out of curiosity
GVK's was from 'the' bloke in 'the' shed iirc. Byldenstein are feckin expensive too from what ive heard. Edited by: DuBDuDe
Personally I think you are simply wasting your time to try it yourself, it not just a case of a quick polish, on mine wich is just an A pack spec like most of the others on here, there was considerable work on the combustion chamber as well as the ports. When valvers were new cars, with just an A pack spec head the gains on the proper engine dyno at GTi engineering were 15bhp. My gains on RR were 14bhp. (tho engine perhaps a tad looser by then over 1st run) but 10bhp pretty much guaranteed. Designa Dubs are doing V good head deals by the man in the shed (he doesnt like or want people going direct hence he doesnt advertise etc) I'd only use him or Blydenstien for my VW heads. I have tho seen some cack modded heads from other companies with no combustion chanber work & ports looking standard, so buyer beware. Edited by: iguana
It's not Racepower.. it's Franz Ferdinand. And only a very select few of us have his direct number.... the reast of you have to pay twice as much to get the same thing from a big tuner Edited by: Tubthumped
