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Poor Mans Type R
Posted:
Thu Dec 20, 2007 4:53 amby Greasedmonkey
I keep hearing this a lot lately. People keep refering to my build as such. Slapping a B16a head on a GSR short block. Sorta what Im doing. But how is this a " Poor Mans R"? The b16a head effectively lowers the already low compression of the GSR from 10:1 to about 9.7:1 or so. An ITR has a ratio of 10.6:1 for the US and 11:1 for the JDM one. So in swapping the head over you are in effect losing power and compression. How is that good? Although I am using a GSR block and B16a head, Im not sticking with GSR pistons, or the US ITRs that came in the block. Im just a lil confussed as to how this combo can be the poor mans r? redlines like a stock b16a or GSR, has lower compression that all three motors and most likely will be slower too. Whats the deal?
Posted:
Thu Dec 20, 2007 5:38 amby asianrob
ITR head = B16 both are PR3 jsut the type-R with the infamous green paint are the chosen ones that are sent to get ported and polished
B18C bottom GSR and type R have the same block BUT the Cranks are different as soon as i find the the HT page on it i'll show you
Posted:
Thu Dec 20, 2007 5:49 amby asianrob
Posted:
Thu Dec 20, 2007 5:35 pmby ohDirka
just like a camaro is a cheap mans corvette, just how people are
Posted:
Fri Dec 21, 2007 1:29 amby Greasedmonkey
I just dont see why people just dont go get a full GSR. why swap on a head that lowers the compression, just becuase its got the PR3 casting number. The Cumbustion chamber is bigger on the PR3 head, which is what lowers the compression.
Posted:
Fri Dec 21, 2007 2:48 amby asianrob
Greasedmonkey wrote:I just dont see why people just dont go get a full GSR. why swap on a head that lowers the compression, just becuase its got the PR3 casting number. The Cumbustion chamber is bigger on the PR3 head, which is what lowers the compression.
better flow
Posted:
Sat Dec 22, 2007 1:14 amby Greasedmonkey
Not from the numbers I have seen for stock for stock. GSR flows a bit better.
Posted:
Sat Dec 22, 2007 2:45 amby asianrob
the tuner out here seemed to get better numbers out of 16 instead of 18's but if you can get either of those to get the flow of a H22 then it wouldnt matter lol
Posted:
Sat Dec 22, 2007 4:22 amby Greasedmonkey
Hell, the only reason I got the B16a head was because I got a hella deal on it with the cams.
Posted:
Sat Dec 22, 2007 5:25 amby asianrob
yea my last set up that i was going to build (LSVTEC) i bought a brand new head off my friend thats been sitting in the closet for like a year and a half lol i got that and ported and polished that but never used it hahah ended up trading for my K24 i need to finish
Posted:
Mon Dec 24, 2007 5:28 amby Greasedmonkey
ive been debating on whether or not to port my head.
Posted:
Mon Dec 24, 2007 6:16 amby asianrob
Greasedmonkey wrote:ive been debating on whether or not to port my head.
do it
Posted:
Tue Dec 25, 2007 5:09 amby Greasedmonkey
yea, i decided to do it. I Just need to get some valve srpings and retainers.
Posted:
Sat Jan 26, 2008 5:59 amby wetfart
gsr is the shit
im starting stock
build tull blows and then build somemore
Posted:
Sun Jan 27, 2008 12:59 amby a_CoUpE
idk but i have seen personally a "poor mans R" run 14.9's consistently.
Stock GS-R block
B16 head w/ full Type R internals.
in a 93 hatch.