Poor Mans Type R

B16, B18, B20
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Poor Mans Type R

By Greasedmonkey
- Thu Dec 20, 2007 4:53 am #34777 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?
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By asianrob
- Thu Dec 20, 2007 5:38 am #34779 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
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By asianrob
- Thu Dec 20, 2007 5:49 am #34780 http://www.honda-tech.com/zerothread?id=423970

shows the difference in the crank
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By ohDirka
- Thu Dec 20, 2007 5:35 pm #34821 just like a camaro is a cheap mans corvette, just how people are
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By Greasedmonkey
- Fri Dec 21, 2007 1:29 am #34867 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.
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By asianrob
- Fri Dec 21, 2007 2:48 am #34874
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
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By Greasedmonkey
- Sat Dec 22, 2007 1:14 am #34997 Not from the numbers I have seen for stock for stock. GSR flows a bit better.
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By asianrob
- Sat Dec 22, 2007 2:45 am #35004 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
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By Greasedmonkey
- Sat Dec 22, 2007 4:22 am #35014 Hell, the only reason I got the B16a head was because I got a hella deal on it with the cams.
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By asianrob
- Sat Dec 22, 2007 5:25 am #35016 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
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By Greasedmonkey
- Mon Dec 24, 2007 5:28 am #35167 ive been debating on whether or not to port my head.
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By asianrob
- Mon Dec 24, 2007 6:16 am #35174
Greasedmonkey wrote:ive been debating on whether or not to port my head.

do it :thumb:
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By Greasedmonkey
- Tue Dec 25, 2007 5:09 am #35235 yea, i decided to do it. I Just need to get some valve srpings and retainers.

By wetfart
- Sat Jan 26, 2008 5:59 am #39383 gsr is the shit
im starting stock
build tull blows and then build somemore
:thumb:
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By a_CoUpE
- Sun Jan 27, 2008 12:59 am #39456 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.
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