double-6s 0 Posted March 3, 2006 Hi all. Can anyone please tell me where I can get some BIG valves for a (soon to be) ported and polished vr head? Many thanks. Bilco Quote Share this post Link to post Share on other sites
dr_mat 0 Posted March 3, 2006 B+Q? ;) I'll get me coat.. Quote Share this post Link to post Share on other sites
Stan 24v 0 Posted March 4, 2006 Ring Andy Walker at PSI Tuning mate - 01782 563703 Quote Share this post Link to post Share on other sites
h100vw 0 Posted March 4, 2006 I don't think I have ever heard of any. If they do exist, then I would expect them to come from the States. Is there even room to fit some in? There is a very good reason for using 4 valves per cylinder... Gavin Quote Share this post Link to post Share on other sites
mgbv8mike 0 Posted March 4, 2006 TSR put a set in mine when they built my engine, they also gas flowed the head, I don't know how much larger they are though. Quote Share this post Link to post Share on other sites
double-6s 0 Posted March 4, 2006 h100vw - course they exist. stop flapping :) 1mm oversize as far as i know. as the man says, TSR defo supply big valve vr heads. Quote Share this post Link to post Share on other sites
Stan 24v 0 Posted March 5, 2006 Did you ring PSI? :) Quote Share this post Link to post Share on other sites
double-6s 0 Posted March 5, 2006 not yet mate. my 2 kids have been running circles round me all weekend. i'll ring andy tomorrow. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted March 6, 2006 Stage 3 12V heads flow a good deal more than standard.....at the expense of bottom end if you do nothing else, such as a capacity increase, to make use of that increased flow. Quote Share this post Link to post Share on other sites
double-6s 0 Posted March 6, 2006 Stage 3 12V heads flow a good deal more than standard.....at the expense of bottom end if you do nothing else, such as a capacity increase, to make use of that increased flow. (see my sig) :) Quote Share this post Link to post Share on other sites
vdubjb 0 Posted March 7, 2006 I have a 2mm oversized inlet 1mm oversized exhaust head in my car. With my cat 268°'s, she pulls like a raped ape. Quote Share this post Link to post Share on other sites
Stan 24v 0 Posted March 7, 2006 she pulls like a raped ape. That made me laugh :lol: :lol: :lol: Quote Share this post Link to post Share on other sites
double-6s 0 Posted March 16, 2006 have just answered my own question....... oversized inlet and exhaust valves are available from http://www.hiflowheads.co.uk anyone heard of them before? Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted March 16, 2006 There has been discussions about Hiflow in the past with mixed opinions, some good, some not so good! Quote Share this post Link to post Share on other sites
double-6s 0 Posted March 16, 2006 ok. they're not that cheap! 25 squid x 12! ouch. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted March 16, 2006 Nothing about the VR6 engine is cheap.....but think yourself lucky you're not replacing 24 of the blighters! Quote Share this post Link to post Share on other sites
double-6s 0 Posted March 16, 2006 good point kev! definately going to stick to a 12v now! Quote Share this post Link to post Share on other sites
