Cylinder head differences AYP/ AGU?

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
That is a thought that crossed my mind Bill maybe ADR was the head in production when vw/audi started to play with port sizes so in turn there is some of each in that code :confused:.

Any idea what the part number was on your ADR Bill?

The ADR i have was from a friend who runs a specialist vw/audi brakers yard so i only gave peanuts for it, but i'm sure he had another ADR head there if not two more, next time i'm over there i'll have a look and a little measure up if there still there.

I dont know the part number of it sorry, just its dot stamped ADR
 

joehirth

Rate me up baby
Apr 19, 2010
1,896
3
Woking, Surrey
www.facebook.com
Bringing this thread back -

I've now been told that a largeport head isn't worth going for unless you want over 500BHP as it will increase lag and decrease torque... apparantly a properly ported small port head will out perform a large port head??

Can anyone shed some light on this?
 

tashacupra

Next up "twin scroll"
Jul 26, 2007
303
0
suffolk
http://www.seatcupra.net/forums/showthread.php?t=195054&highlight=Adr

Have a look here, some heavy reading at the end but some good info, from what I have been told/read on most setups a pro ported small port will produce a smoother drive, but my guess is to most of us the difference between ported small port and stock large port will be hard to notice:confused:, and IMO working to a budget as most of us do, justifying the £750 most seem to quote for a good port job is hard when you can use I stock large port for similar results, however this is only my opinion and not based on any experiences.
 

joehirth

Rate me up baby
Apr 19, 2010
1,896
3
Woking, Surrey
www.facebook.com
Does anyone want to swap a Large port AGU head with a small port one? AYP if poss (just to match my OEM engine stamp...)

Fully built with cams and everything might be of use to someone on this thread in particular Tashcupra you saif you want one??
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
Bringing this thread back -

I've now been told that a largeport head isn't worth going for unless you want over 500BHP as it will increase lag and decrease torque... apparantly a properly ported small port head will out perform a large port head??

Can anyone shed some light on this?

wellys S3 with AGu head on it produced more torque than the smallpost S3 on same hybrid.. and its not laggy

300-320bhp region of airflow
 
Progressive Parts, performance parts and tuning specialists