whatu think?
Thread Starter
Member
Joined: Apr 2007
Posts: 65
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whatu think?
ok lets start with
b18b 81mm stock sleeves
eagle 95mm forged crank
eagle forged rods
eagle 11.8 cr pistons
kms oil pump
kms block gaurd
stock gsr water pump
civic type r pulley
head:
00' p72 gsr head
supertech valves,retainers,dual coil race springs, 7deg locks
multi angle valve job
on custom stage 4 allmotor race cams w/
aem cam gears
and probably a 100 shot after motor gets in car, with s200 tuning
im hoping its anywhere from 200 - 230whp... what u think?
b18b 81mm stock sleeves
eagle 95mm forged crank
eagle forged rods
eagle 11.8 cr pistons
kms oil pump
kms block gaurd
stock gsr water pump
civic type r pulley
head:
00' p72 gsr head
supertech valves,retainers,dual coil race springs, 7deg locks
multi angle valve job
on custom stage 4 allmotor race cams w/
aem cam gears
and probably a 100 shot after motor gets in car, with s200 tuning
im hoping its anywhere from 200 - 230whp... what u think?
Ridin Dirty
Joined: May 2002
Posts: 3,839
Likes: 0
From: Charlotte,NC
Senior Member
Joined: Oct 2004
Posts: 4,270
Likes: 0
From: Texas
From an OEM standpoint, the ITR version of the PR3 will outflow the p72. The OP already has a GSR head though, which he can get ported and polished for significantly less than the cost of a then inferior ITR head. Not to mention, he will suffer a slight compression loss with the ITR head.
In almost all cases, it doesn't make sense to pay top dollar for an ITR head.
Take one of each, PR3 and a P72 - do the same port & polish job, and the P72 will always flow a higher CFM. Its been proven on a flow bench several times.
From: http://www.importreview.com/reviews/...sB16Ahead.html
Blue is GSR
Red is B16
This is a VERY good comparison to look at...
Question: What is the best head to put on my LS/VTEC, GS-R or B16A?
Answer: In the opinion of Atomic and myself, I have to go with a GS-R head.
Look at the graph...here is the 2 motors
On 1 side we have the LS/VTEC B16A head...coming in at 180 HP
The bottom end is EXACTLY the same as the GS-R LS/VTEC...exactly...
so it makes for a good comparison.
B16A has:
port flow port/polish (mild)
Civic Type-R intake cam
ITR exhaust cam
Comp valve springs/retainers
Type-R intake manifold
GS-R head has:
Stock head
Stock valvetrain
Stock intake manifold
ITR cams, intake and exhaust.
and it made a little more power, as you can see by chart.
With the GS-R head, you also will definitely get more torque.
For the money though, B16A head is a good choice.
Remember, this is not a perfect test, it just shows a pattern....
Jeff
Now just to add, if I were doing an LS vtec setup, I would buy whichever I could find cheapest - the GSR p72, or the B16 pr3.
In almost all cases, it doesn't make sense to pay top dollar for an ITR head.
Take one of each, PR3 and a P72 - do the same port & polish job, and the P72 will always flow a higher CFM. Its been proven on a flow bench several times.
From: http://www.importreview.com/reviews/...sB16Ahead.html
Blue is GSR
Red is B16
This is a VERY good comparison to look at...
Question: What is the best head to put on my LS/VTEC, GS-R or B16A?
Answer: In the opinion of Atomic and myself, I have to go with a GS-R head.
Look at the graph...here is the 2 motors
On 1 side we have the LS/VTEC B16A head...coming in at 180 HP
The bottom end is EXACTLY the same as the GS-R LS/VTEC...exactly...
so it makes for a good comparison.
B16A has:
port flow port/polish (mild)
Civic Type-R intake cam
ITR exhaust cam
Comp valve springs/retainers
Type-R intake manifold
GS-R head has:
Stock head
Stock valvetrain
Stock intake manifold
ITR cams, intake and exhaust.
and it made a little more power, as you can see by chart.
With the GS-R head, you also will definitely get more torque.
For the money though, B16A head is a good choice.
Remember, this is not a perfect test, it just shows a pattern....
Jeff
Ridin Dirty
Joined: May 2002
Posts: 3,839
Likes: 0
From: Charlotte,NC
From an OEM standpoint, the ITR version of the PR3 will outflow the p72. The OP already has a GSR head though, which he can get ported and polished for significantly less than the cost of a then inferior ITR head. Not to mention, he will suffer a slight compression loss with the ITR head.
In almost all cases, it doesn't make sense to pay top dollar for an ITR head.
Take one of each, PR3 and a P72 - do the same port & polish job, and the P72 will always flow a higher CFM. Its been proven on a flow bench several times.
Now just to add, if I were doing an LS vtec setup, I would buy whichever I could find cheapest - the GSR p72, or the B16 pr3.
In almost all cases, it doesn't make sense to pay top dollar for an ITR head.
Take one of each, PR3 and a P72 - do the same port & polish job, and the P72 will always flow a higher CFM. Its been proven on a flow bench several times.
Now just to add, if I were doing an LS vtec setup, I would buy whichever I could find cheapest - the GSR p72, or the B16 pr3.