WRX Heads should be better than JDM V8 heads when ported
#1
WRX Heads should be better than JDM V8 heads when ported
Hey guys,
We just received the data on our WRX heads. It took about 3 pairs of heads (2 pairs destroyed ) and many hours of testing at the hands of an experienced (and certified) porting specialist but we finally did it!
We managed to make WRX heads flow about 10 to 15 cfm BETTER than the JDM V8 big port counterparts. With the smaller runner diameters and better flow rates, you will be looking at more flow at higher velocities. Bottom line? Since heads are where most of the top end gains come from these heads will make much MORE power
We will be testing these heads in the upcoming weeks on a stage 2 WRX. Stay tuned!
Here’s some pics:
These particular heads received the Gruppe-S port work with a 5-angle valve job.
Gruppe-S port work with a 5-angle valve job
$1250 labor using your heads
Regards,
Preston
Gruppe-S Engineering
29150 Simms Ct.
Hayward CA 94544
Phone: (510) 783-5300
We Accept Paypal!
Paypal: sales@gruppe-s.com
When ordering w/ paypal, please include the following:
product name: XXXXX
sales rep: Preston
Price including shipping: $XXXX
Shipping address.
We just received the data on our WRX heads. It took about 3 pairs of heads (2 pairs destroyed ) and many hours of testing at the hands of an experienced (and certified) porting specialist but we finally did it!
We managed to make WRX heads flow about 10 to 15 cfm BETTER than the JDM V8 big port counterparts. With the smaller runner diameters and better flow rates, you will be looking at more flow at higher velocities. Bottom line? Since heads are where most of the top end gains come from these heads will make much MORE power
We will be testing these heads in the upcoming weeks on a stage 2 WRX. Stay tuned!
Here’s some pics:
These particular heads received the Gruppe-S port work with a 5-angle valve job.
Gruppe-S port work with a 5-angle valve job
$1250 labor using your heads
Regards,
Preston
Gruppe-S Engineering
29150 Simms Ct.
Hayward CA 94544
Phone: (510) 783-5300
We Accept Paypal!
Paypal: sales@gruppe-s.com
When ordering w/ paypal, please include the following:
product name: XXXXX
sales rep: Preston
Price including shipping: $XXXX
Shipping address.
#4
VIP Member
iTrader: (3)
Join Date: Aug 2003
Location: Farnborough, Hants
Posts: 2,539
Car Info: the blue bucket
Originally Posted by DLN84
any recommended valvetrain packages other than that JUN that would go well with these heads?
Mike
Thread
Thread Starter
Forum
Replies
Last Post
UP2MTNS
NorCal Classifieds
1
02-06-2008 07:14 PM
gdbimpreza
SoCal
22
05-11-2005 03:24 PM
stealth-wrx
Engine/Power - EJ20T (pre-2006 WRX and JDM)
5
11-26-2002 01:16 PM