which would be better for boost w/ a jdm b16a head, the stock cams or gsr cams? does anyone have the specs on both of teh cams for me? Ive tried searching a little, but i cant find the specs mainly of the b16a cams. sorry for the noob *** question, but hey, im still a noob

EDIT: a lil more info...

GSR block cp 9.8:1, manley rods, oem bearings, stock head, itr IM/TB

SC-61 turbo, ram horn mani, blah blah.. tuned for street 10psi pump, ~20psi race gas for track. looking for ~450 w/ race gas, high boost

 

I've got a set of GSR cams for sale if you need them. I've always heard that they worked better for boost then the stock cams.

 

GSR>B16

 

CTR>ITR>GSR>B16 is what i've heard

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatch-E-vanish &raquo;</TD></TR><TR><TD CLASS="quote">CTR&gt;ITR&gt;GSR&gt;B16 is what i've heard </TD></TR></TABLE>

more like ITR&gt;CTR&gt;GSR&gt;B16

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 &raquo;</TD></TR><TR><TD CLASS="quote">

more like ITR&gt;CTR&gt;GSR&gt;B16 </TD></TR></TABLE>

that depends on the manifold/turbo setup.

if you have a log manifold or a really small turbine wheel/housing then gsr cams are you best bet. if you have a big turbine and a nice tubular manifold then ctr or itr cams will work best. (ctr and itr are so close unless you get OLD itr cams that it dosnt really matter that much)

 

http://www.evans-tuning.com/comp3.html
i think this should help..
this is the reason i bought some gsr sticks for my turbo build.

 

is 92-93gsr cams the same as 94up gsr cams???..can anyone confirm this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snowbunny &raquo;</TD></TR><TR><TD CLASS="quote">is 92-93gsr cams the same as 94up gsr cams???..can anyone confirm this?</TD></TR></TABLE>

Yes they are the same

 

here are the specs for the two (B18C and B17) incase anyone is wondering. And also to the OP if the B16A cams you have are 1st Gen then they are the same as a 94+ GSR


Intake opening (BTDC) = 10
Intake closing (ABDC) = 40
Intake duration = 230
Exhaust opening (BBDC) = 40
Exhaust closing (ATDC) = 7
Exhaust duration = 227
Overlap = 17
Intake valve lift (mm) = 10.6 (.417")
Exhaust valve lift (mm) = 9.4 (.370")


Modified by BoostedEG6 at 5:58 PM 4/9/2007

 

^ thanks, that was more of the answer i was looking for... and yes they are first gen b16a cams. Thanks for all the info

 

i thought 1st gen b16a cams was the smallest/weakest of all vtec cams??

 

^ bump, explain more please.. dont just say 1st gen cams are the worst...

 

anyone else?

 

For starters get a different turbo ASAP if 450 WHP at 20 psi is your goal. SC61 is a 600-630 WHP turbo and will probably make closer to 500 WHP at 20 psi. get a smaller turbo, it'll have better response and drive better.

Two, the 1st gen B16A cams are the smallest of all VTEC cams and will make the least amount of power compared to all other VTEC cams. It is a very worthwhile upgrade to pickup some GSR or (even better) ITR cams.

 

im not really worried about the turbo making a little over what a guessed.. as for the cams, ive heard 1st gen b16a cams are same as GSR's, and ive heard 1st gen b16a cams are worst.... hmmmm

 

If I were you I would just go with the GSR's. it will save you the worry. I have a set of 1 gen B16 cams at my house along with a set of GSR's.... when I get back I will mic them and see what it comes out as. I have found many things showing that the GSR and 1 gen B16's are the same as far as lift/duration. But I am also talking about the B16 out of a 89-91

 

I switched for b16 to GSR's in my turbo setup. It was night and day. Gsr were way better. But I have heard theat b16b's(CTR) cams are the best for boost. Now before anybody jumps me that is what I heard and is in no way my opinon due to not being tested by myself.


But def GSR!!!

 

GSR for sure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 &raquo;</TD></TR><TR><TD CLASS="quote">If I were you I would just go with the GSR's. it will save you the worry. I have a set of 1 gen B16 cams at my house along with a set of GSR's.... when I get back I will mic them and see what it comes out as. I have found many things showing that the GSR and 1 gen B16's are the same as far as lift/duration. But I am also talking about the B16 out of a 89-91 </TD></TR></TABLE>

ok thanks bro... i look forward to seeing the results