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Engine Specific Info and Questions => IDI Engine => Topic started by: redbaronmulisha on January 27, 2008, 11:35:38 am

Title: head mods
Post by: redbaronmulisha on January 27, 2008, 11:35:38 am

hello fellow diesel suckers.was discussing cyclinder head modifications that would flow a bit more power.he said could all be done i wanted to hear what the specialists say the mods are listed:
back cut and swirl polish the valves
3 angle valve job
port and polish the head
(obviously getting the head skimmed and arp bolts)

well any feedback would be good

Title: head mods
Post by: 935racer on January 27, 2008, 12:05:39 pm

Yep all of those things work. The exhaust ports on these heads need all the help they can get.

Title: head mods
Post by: redbaronmulisha on January 27, 2008, 02:44:37 pm

good job,i was thinking of getting/making a manifold from engine to turbo  or just hollowing the current 1 out a bit.an equal length manifold would be nice but i cant be bothered with the hassle

Title: head mods
Post by: Ottobon on January 27, 2008, 11:13:09 pm

anybody have pics of the exhaust ports?

Hi, first post :)

Title: head mods
Post by: dillenger1 on January 28, 2008, 02:56:04 am

(http://i249.photobucket.com/albums/gg206/2253benjamin/volkswagendiesel026.jpg)

Title: head mods
Post by: 914turboford on January 28, 2008, 10:46:28 am

Is there any kind of consensus as to which exahaust manifold is better? Mk1 side exit or Mk2 center exit?

Title: head mods
Post by: burn_your_money on January 28, 2008, 11:29:17 am

mk1 and mk2 TD exhaust manifolds are identical from what I can tell. The NA ones are slightly different with the exit port being more offset on the mk1. I would not refer to them as "side exit" though. Perhaps you mean the Quantum ones?