Development of our MK4 Rs for hps

**dainese** · 28-09-2009, 07:21 AM

that sounds delicious...

but a bit of a mission to send heads abroad and receive.

a lot of money, but seems like a good return

**RolfGolf** · 28-09-2009, 10:58 AM

... and then just get yourself one of those mobile refuelling choppers to fly behind you and you're all set

**GoLfMan** · 28-09-2009, 01:13 PM

Originally Posted by graeme86

Headwork?

Read this:

http://www.cncheads.co.uk/vw_r32.html

I like this bit:
"Our gas flow measurements show that it has very good inlet flow but there was a lot of room for improvement on the exhaust side. After a challenging and extensive period on the flow bench we were able to raise the Inlet flow by 6% to 161.6 CFM. On the exhaust side we were able to make a huge increase of 30% to 129CF. This level of flow means this engine is capable of over 400BHP in normally aspirated form."

that is some seriously nice work they've done there

**JVLR32** · 28-09-2009, 02:07 PM

Originally Posted by graeme86

Headwork?

Read this:

http://www.cncheads.co.uk/vw_r32.html

I like this bit:
"Our gas flow measurements show that it has very good inlet flow but there was a lot of room for improvement on the exhaust side. After a challenging and extensive period on the flow bench we were able to raise the Inlet flow by 6% to 161.6 CFM. On the exhaust side we were able to make a huge increase of 30% to 129CF. This level of flow means this engine is capable of over 400BHP in normally aspirated form."

Yes yes....very good ok thanks graeme

**JVLR32** · 28-09-2009, 10:09 PM

Originally Posted by graeme86

Headwork?

Read this:

http://www.cncheads.co.uk/vw_r32.html

I like this bit:
"Our gas flow measurements show that it has very good inlet flow but there was a lot of room for improvement on the exhaust side. After a challenging and extensive period on the flow bench we were able to raise the Inlet flow by 6% to 161.6 CFM. On the exhaust side we were able to make a huge increase of 30% to 129CF. This level of flow means this engine is capable of over 400BHP in normally aspirated form."

Really nice read...For some one who can do this here in Australia

Goodman Engines....Woolgoolga NSW, he uses Ivan Tighe cams

**G-rig** · 29-09-2009, 11:57 AM

Sounds like the intake capacity is still limiting the setup from the above summary?

**Manaz** · 29-09-2009, 12:28 PM

Originally Posted by G-rig

Sounds like the intake capacity is still limiting the setup from the above summary?

I read it as being the other way around - the exhaust is still the limiting factor. Gotta remember that exhaust gases are expanded intake gases - so the engine doesn't need to breathe in as much volume as it breathes out...

**JVLR32** · 29-09-2009, 10:08 PM

A liitle homework done today....Goodman RaceEngines Has alot of programes New Data from America...Hes been Developing head work from that info including hes own knowledge.

This bloke Roy Developed me a EJ20T motor 96 Liberty for my Sportsedan 225kw=300hps....the headwork flowed 350hps...Original motors 155kw

Roy will develop a head if we all anyone wants to.....Is there anyone on here that has a R32 head forsale(dropped a valve all something)....long shot to ask!....He will develop own cams to suit...could be interesting....