which is better for a gsr? i heard the pro1 gives more mid and probably more top end then the old s2s2. how is it compare to bc3+? which one would u go for?

 

I the correct size motor I would expect the Pro 1's to make more power everywhere. In a stock/stock revving motor with no plans of more modifications, I might opt for the BC3+'s.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by clean rice &raquo;</TD></TR><TR><TD CLASS="quote">I the correct size motor I would expect the Pro 1's to make more power everywhere. In a stock/stock revving motor with no plans of more modifications, I might opt for the BC3+'s.</TD></TR></TABLE>

co-sign, the bc 3's are about as nice a cam as you can get for a stockish motor. the pro1's which i have are a different beast with a very lumpy idle but great power everywhere.

 

i'm about to replace my bc3+'s with the pro-1's, i'll let you know how it goes.
jamessh1, what compression are you running with the pro1? weren't you able to tune out the lumpy idle? i heard you're supposed to add timing and reduce fuel at idle to get rid of the lumpiness

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by an2ny888 &raquo;</TD></TR><TR><TD CLASS="quote">i get rid of the lumpiness</TD></TR></TABLE>

WHY?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by an2ny888 &raquo;</TD></TR><TR><TD CLASS="quote">i'm about to replace my bc3+'s with the pro-1's, i'll let you know how it goes.</TD></TR></TABLE>

I'm in the same scenario. I don't know, I'm just not happy with the BC3+s. I know a butt dyno doesn't mean anything, but I don't really feel like a big improvement compared to CTRs for some reason

 

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

I'm in the same scenario. I don't know, I'm just not happy with the BC3+s. I know a butt dyno doesn't mean anything, but I don't really feel like a big improvement compared to CTRs for some reason</TD></TR></TABLE>
im on a different boat then u guys. im thinking about getting rid of my old skunk2 stage1 cams for those bc3+.. btw is the pro1 alot more diff then the old stage1?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2SIR-G &raquo;</TD></TR><TR><TD CLASS="quote">btw is the pro1 alot more diff then the old stage1?</TD></TR></TABLE>
-------------------------------------------------

Pro 1+----IN. 0.496,264; EX. 0.469,264
Stage 1---IN. 0.469,264; EX. 0.433,259

 

Given the amount of lift on the Pro 1's, I'm surprised these cams can be put in the same category. If I were you, I'd be contemplating going with BC4's or the Pro 1's. Just my 0.02..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chillinit &raquo;</TD></TR><TR><TD CLASS="quote">Given the amount of lift on the Pro 1's, I'm surprised these cams can be put in the same category. If I were you, I'd be contemplating going with BC4's or the Pro 1's. Just my 0.02..</TD></TR></TABLE>

werd...i never understood why people always compare the two either. These companies make it damn too confusing. The BC3+ is not a "stage 3" cam, and the Sk2 pro1 is not a "stage 1" cam.

 

Sorry to kind of thread-jack, but since the bcIV's were mentioned I thought I'd ask. Has anyone seen any comparisons between the pro1's and bcIV's? I've been curious as to how these cams stack up against each other.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GGhatchie &raquo;</TD></TR><TR><TD CLASS="quote">Sorry to kind of thread-jack, but since the bcIV's were mentioned I thought I'd ask. Has anyone seen any comparisons between the pro1's and bcIV's? I've been curious as to how these cams stack up against each other. </TD></TR></TABLE> taaaddaaahhh the answer to your question is here https://honda-tech.com/zerothread?id=1135465 &lt; great thread

 

Thanks for the link KINGSOL18. I should've known tbone had done a comparison

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by an2ny888 &raquo;</TD></TR><TR><TD CLASS="quote">i'm about to replace my bc3+'s with the pro-1's, i'll let you know how it goes.
jamessh1, what compression are you running with the pro1? weren't you able to tune out the lumpy idle? i heard you're supposed to add timing and reduce fuel at idle to get rid of the lumpiness</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkoundrelUSA &raquo;</TD></TR><TR><TD CLASS="quote">

I'm in the same scenario. I don't know, I'm just not happy with the BC3+s. I know a butt dyno doesn't mean anything, but I don't really feel like a big improvement compared to CTRs for some reason</TD></TR></TABLE>

If either of you wnat to sell your cams soon let me know!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by broketuner-egb16a &raquo;</TD></TR><TR><TD CLASS="quote">

If either of you wnat to sell your cams soon let me know!</TD></TR></TABLE>

I most likely will. Any offers ? j/w

 

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

WHY? </TD></TR></TABLE>

Because as much as some people might like a lopey idle, loping means that power output is less than optimal in the RPM range in which the loping occurs.

As for the original question, the BC3+ would DEFINITELY be the better cam for a stock compression GSR. From what I have heard, the Pro 1 is somewhat similar to the S2S2. That cam likes compression to be at or above 11:1. And a stock GSR is only 10:1.

 

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

Because as much as some people might like a lopey idle, loping means that power output is less than optimal in the RPM range in which the loping occurs.

As for the original question, the BC3+ would DEFINITELY be the better cam for a stock compression GSR. From what I have heard, the Pro 1 is somewhat similar to the S2S2. That cam likes compression to be at or above 11:1. And a stock GSR is only 10:1.</TD></TR></TABLE>

So a S2S2 would be ideal or ok for a JDM ITR given its compression? In another note, you guys mention of titanium retainer wear, what can you guys recommend? I've heard of horror stories of stock retainers breaking in half. Thanks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jamessh1 &raquo;</TD></TR><TR><TD CLASS="quote">co-sign, the bc 3's are about as nice a cam as you can get for a stockish motor. the pro1's which i have are a different beast with a very lumpy idle but great power everywhere.</TD></TR></TABLE>

i was going conduct a write up of the S2P1's, but i'll chime in here. BC3+'s are your best option. i have both BC 3+'s and S2P1's. and all i can say is if you do not have acess to immediate tuning, S2P1's are not for you. i don't know, maybe its because i'm in my 30's and i've been in the game for a while. but, these cams gave me a headache. S2P1's are not drop in friendly, and everybody who has searched on these said cams should know that idling issues with the pro's is a give in. yes, when tuned the pro1's make power and idle o.k. but, having to spend 3 days to get my idle sorted, having my car idle at 1600rpm constantly (during my break in process mind you) popping, sputtering, lumpiness....you know, all of the bullshit people say that they like, is not worth it. and, now that i think about it, i have to commend Rocket for making cams that drop in, make absolute power with the cam gears at zero, idle fine, he supplies a chip etc etc etc. i mean, the S2P1's make more low end power, but, at the sacafice of my sanity, i mean, idle? it just doesn't make sense to me. it does, but, you know what i mean. honestly, when revving to redline, these motors never drop out of vtec after the first upshift, so why is the primary so radical? so i can make more low and mid in the street but have my car lope like a heavily cammed v8? i have respect for Skunk and all of these companies. but, i honestly wish i have opted for S2S2's/Blox B's instead. less headaches, and close to the same power up top. my next cams are probably Rocket M22x's or whatever they are.

 

I guess my comment should of been "HOW" not "Why". Taking the idle away fom pro 1's is like taking the ho out of *****. The primary lobes are oem secondary size. That is what gives you that midrange power. To each his own. Everybody has different builds here. Me personally I want midrange because I won't be in VTAK all the time during racing plus the benefit of a better torque curve!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StorminMatt &raquo;</TD></TR><TR><TD CLASS="quote">Because as much as some people might like a lopey idle, loping means that power output is less than optimal in the RPM range in which the loping occurs.

Pro 1 cam likes compression to be at or above 11:1. And a stock GSR is only 10:1.</TD></TR></TABLE>

And the mentioned lope is at idle up to~1500rpm where nobody makes power because it is at idle. You did get the CR topic going which is good. These cams need higher compression (past threads have shown this).
I believe b16c1 said it that if you don't have access to GOOD tuning then the cam is not for you.
In response to the original post, the person probably has a stock motor. Don't overcam it and go with BC3+.

 

I was wondering about the Pro 1s and the BC3+ so this is a good thread for me; lots of food for thought. I'm running a GS-R with ITR pistons and CTR cams and I'm seriously considering a cam upgrade soon so it sounds like the BC3+ are the best cam for me.

 

i would choose the pro1 cam over the bc3 anyday.. yes you have to tune some to get the idle correct so you actually have to know what you are doing.. when my engine was on donf at dfe enterprises engine dyno we had no trouble at all making the pro1's idle at 800rpms so it can be done.. i am running pro3's in my engine and we had them idleing at 800rpms also.. we were using dtafast engine manag. so as long as you have something decent to tune with you should have no problems..


on another note.. the PRO series cams have PRO in the name for a reason.. if you are wanting to get the best power bottom mid and top these are the cams for you.. but they are a pro series cam which means they are not just a drop in and keep a stock tune.. so when you are purchasing a cam or any engine part you have to have a final goal with what you want to achieve.. then you choose what part is best for you....


shawn

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sparkles &raquo;</TD></TR><TR><TD CLASS="quote"> I'm running a GS-R with ITR pistons and CTR cams and I'm seriously considering a cam upgrade soon </TD></TR></TABLE>

Do you have anything that you are tuning with or are you running it off a stock ecu?

 

I'm using Neptune with Locash tuning.

 

I would opt for the S2 Pro1's if I were you. That or the RM M22x. With you being able to rev beyond stock rpm's, you're gonna benefit a helluva allot more with the Pro 1's vs. the 3+'s. PM me if you want more info on the M22x.

 

The M22x or the Pro 1s wouldn't be over-camming it?