Ok, I'm thinking of getting a JDM gsr engine soon to replace my JDM 2nd gen B16a, and after i'm done swapping it in, I wanna install a set of Skunk2 Stage 2 cams and springs into the motor. So my question is how will these cams perform with the stock intake manifold? I'm gonna get them tuned, but to me it looks like the IM is gonna restrict or not flow as much as a Skunk2 ITR style IM. Am I wrong???? I understand how the GSR IM works, but I don't wanna get my car tuned and have my tuner say " you should swap the IM out for a skunk2/blox/edelbrock/etc".

I did a search here on HT, and I went through all 19 pages and i'm still 50/50 on changing the IM. I've read that i'll loose low end and gain top end with an aftermarket IM. My second question is, has anyone run stage 2 cam or higher on their GSR, tuned with the stock IM?????????

Help me out guys and can't make a decision!!!!!

 

try this. https://honda-tech.com/zerosearch

 

with stock compression you will not utilize the potential of stg 2. id stick with stg 1.

 

I just replaced my ITR cams with S2S2 on my ITR piston GSR motor (~10.8:1) and I lost 10-15hp all the way from 5000-7000 with a 5 hp gain from 7000-8000 neptuned.
The manifold ran out of flow around where the cams really started to take off. So for my set-up the s2s2 with stock manifold did not work. I have since installed a blox manifold and 64mm TB but not tuned yet.
The thing is, the s2s2 cams shift the power up higher and the skunk/blox manifolds do the same so they should be a good match.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rjgerolaga &raquo;</TD></TR><TR><TD CLASS="quote">
try this. https://honda-tech.com/zerosearch</TD></TR></TABLE>

DID you not read the last paragraph? F*CK!!! I always search before I post anything! Did you just read the title and decide to post a comment right after??

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sparkles &raquo;</TD></TR><TR><TD CLASS="quote">I just replaced my ITR cams with S2S2 on my ITR piston GSR motor (~10.8:1) and I lost 10-15hp all the way from 5000-7000 with a 5 hp gain from 7000-8000 neptuned.
The manifold ran out of flow around where the cams really started to take off. So for my set-up the s2s2 with stock manifold did not work. I have since installed a blox manifold and 64mm TB but not tuned yet.
The thing is, the s2s2 cams shift the power up higher and the skunk/blox manifolds do the same so they should be a good match. </TD></TR></TABLE>

So you dynoed your stock engine and then dynoed it again after the cam swap and lost that much power up top?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by needmorespeed &raquo;</TD></TR><TR><TD CLASS="quote">with stock compression you will not utilize the potential of stg 2. id stick with stg 1.</TD></TR></TABLE>

I have Stage one comp cams in my b16a right know. They're nice cams but if i put the GSR in I wanna go alittle bigger. The JDM GSR has 10.6 to 1 compression and obviously has more displacment so I though I would benefit more from these cams on the GSR then I would on the B16a.

 

Yeah my motor is not stock. It uses stock ITR pistons and was neptuned with ITR cams and then s2s2. I made about 5hp on the very top 7000-8000 but lost a ton in the midrange. Just reporting my findings.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sparkles &raquo;</TD></TR><TR><TD CLASS="quote">Yeah my motor is not stock. It uses stock ITR pistons and was neptuned with ITR cams and then s2s2. I made about 5hp on the very top 7000-8000 but lost a ton in the midrange. Just reporting my findings.</TD></TR></TABLE>

Sorry if i'm asking the same thing, but with the s2s2 you made 5hp up top but lost midrange with the gsr IM?? If so do you plan on buying a ITR style IM??


And another thing I wanna know is, if a ITR style IM is installed onto a GSR motor, wouldn't running a P73 ecu be alot better? Cuz your not using the butteflies anymore and vtec is too low. I know I can just raise the vtec with a vafc or chipped p28, but I would like to get it to run at its best with just a oem ecu.

 

Ideal compression for S2S2 is 11.5 I believe. I ran them in my stock block B16 and I loved em

 

I'm only getting the GSR because of the torque. I love my JDM 2nd gen b16a, its a strong motor, doesn't burn a drop of oil and adding a 4.795 FD into the b16 tranny made this setup fun to drive. I really don't wanna sell this engine and end up with a bad seal oil burning hunk of junk. But on low end it feels like a d-series. My plan is to get a JDM GSR long block from tigerjapanese.com, they're selling it for $1650. Since i;m 2 hours away from them I'm gonna go drive and pick it up. Should I go through all this? Buy the GSR, sell the B16a go through the whole swap process, just for 10-15 ft lbs of torque?? Or should I just get S2S2 cams for my b16a and get it tuned with a p28 ecu???????????????

My b16a:

8.5 lb flywheel
blox IM
dc header
comp Stage 1 cams'
tuned with vafc
4.785 FD

 

s2s2 cam are great cams. they will work on the motor with that compression. i would change the intake to a aebs typhoon. make sure u et cam gears. these cams make no power on 0,0. i find the +3,+3 on my motor works and +4,+4 on my friends motor. on 0,0 i lost power everywhere and peaked about the same as 3,3. at 3,3 i gained lots of mid. any questions about these cams ask me. i have had them for like 2 1/2 years

 

would you guy recommend s2s2 cams in a 12-1 motor if not what would you recommend le tme know im in the final window of my build and i have a feeling my header and cams are gonna hold me away from 200 whp all motor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2001B18C1GS-R &raquo;</TD></TR><TR><TD CLASS="quote">would you guy recommend s2s2 cams in a 12-1 motor if not what would you recommend le tme know im in the final window of my build and i have a feeling my header and cams are gonna hold me away from 200 whp all motor</TD></TR></TABLE>
i run these cams and i'm 11.8~12.0 CR.. s2s2's the regular ones, are very good and a more aggressiver mild cam.. i love these cams..Again, CR doesn't define what cam you should use, just how much OF the cam you will use..s2s2's power drop off the last time i dynoed was almost in the upper 8's, around 8700~8900rpms.. but thats been two years almost(when i had my manifold setup) on my itb setup i'm sure its higher, but i dunno.. CR will just max the poteninal of a cam..any cam will make power..how much power dependson your other mods, tuning, and yea, CR... s2s2's in my car are also semi daily driven.. no problems.

 

Can I use stage 2's with a stock block? Are ctr pistons good enough?

 

answered my own ? sorry

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondadriver &raquo;</TD></TR><TR><TD CLASS="quote"> My plan is to get a JDM GSR long block from tigerjapanese.com</TD></TR></TABLE>


If you want a real clean motor buy it from http://www.hmotorsonline.com

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mhollaek9 &raquo;</TD></TR><TR><TD CLASS="quote">Can I use stage 2's with a stock block? Are ctr pistons good enough?</TD></TR></TABLE>


CTR pistons might be a little too much since they're real high compression, but again ask someone who knows more then me.