Jump to content

205GTIDrivers.com has just received a major redesign and the update is still in progress, so please bear with us. You may want to clear your browser's cache and cookies for this site. Sorry for the inconvenience.
Also, we invite you to post feedback in this topic: http://www.205gtidrivers.com/topic/171489-new-website-feeback/ 

  • Welcome to 205GTIDrivers.com!

    Hello dear visitor! Feel free to browse but we invite you to register completely free of charge in order to enjoy the full functionality of the website.

Sign in to follow this  
Batfink

Big Valves

Recommended Posts

Sandy

Some builders/sellers love big valves, because it makes sense in simple terms to increase sizes, increase flow and hence power. The work and parts involved is nicely chargeable, the business case is strong.

What really makes good engines it moderate, considered choices in all areas, pragmatic sizing of things like valves, bores etc and having it all matched and set up really well.

 

Repeating myself, but there's alot more background and testing to my point than you'll ever know... the standard valve sizes are more than adequate for all but the most extreme engines. You're more likely to make your build worse than better, by increasing the valve sizes.

Edited by Sandy

Share this post


Link to post
Share on other sites
petert

anyone know whats the best size valves to use for big valve 2.0 mi16/s16 head that i want to build and what car they from??

 

I know of an engine builder who bought a set of 36.4mm valves from my supplier and turned them down to 35.5mm as he didn't want the hassles of shrouding. Like Sandy said......................

Share this post


Link to post
Share on other sites
Josh_Quant

well i was looking today at work in our valve book and the 2.0 hdi runs 35.6 x 6.0 x 107.1 and stardard 34.6 x 7.0 x 106.4 inlets i was thinking would a bit easier to fit and got a hole hdi engine at work doing nothing, would need more valves and to change valve guides to 6.0mm

 

also got catcams inlet cam and vernier pulley at work, would port and polish the head same time while it was off to

 

what you reckon??

 

and would be running with superchip ECU, uprated fuel reg (4 bar) and gti6 inlet manifold which is already in my 205

 

cheers GUYS (:

Share this post


Link to post
Share on other sites
stefan

Well hell, go for it! And do report back how it goes, will you? :)

Share this post


Link to post
Share on other sites
Sign in to follow this  

×