hey guys. i am thinking about getting some vtec cam upgrade on my gsr. i was wondering if they made a cam that has stock or close to stock nonvtec lobes and a crazy *** vtec lobe? the thing is, i still want my car to pass smog and i know the smog guys arent gonna be dynoing my car at vtec. also, i will get a VAFC if i must with a given cam.

my goals:
- possibly lower my vtec engagement point
- have crazy *** vtec lobes
- have decent non vtec lobes
- upgrading valve train of its springs, and retainers ( will this let me have a higher redline?)


considering the JUN stage 3s or the skunk2 stage 3.

already done a search, but all i found was which cams are best and the specs for them. i didn't find anything on experience or road results.


Modified by tekstyle at 7:50 AM 8/28/2004

 

crower

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tekstyle &raquo;</TD></TR><TR><TD CLASS="quote">hey guys. i am thinking about getting some vtec cam upgrade on my gsr. i was wondering if they made a cam that has stock or close to stock nonvtec lobes and a crazy *** vtec lobe? the thing is, i still want my car to pass smog and i know the smog guys arent gonna be dynoing my car at vtec. also, i will get a VAFC if i must with a given cam.

my goals:
- possibly lower my vtec engagement point
- have crazy *** vtec lobes
- have decent non vtec lobes
- upgrading valve train of its springs, and retainers ( will this let me have a higher redline?)


considering the JUN stage 3s or the skunk2 stage 3.

already done a search, but all i found was which cams are best and the specs for them. i didn't find anything on experience or road results.


Modified by tekstyle at 7:50 AM 8/28/2004</TD></TR></TABLE>

would also like to know this

 

it seems like you are asking alot. stage 3's would be too much for what your goals are. stage 3 cams will give you a really rough idle, but you will definatly get a crazy vtec lobe. the primaries on those cams are still pretty sick, which doesnt sound like something you want.

go with a more mild cam, like a stage 1 or maybe a stage2, if you want to stay on the rougher side.

 

what will i have to set my idle to if i want a decently smooth idle with stage 3?

 

im not exactly sure..i mean i could give you my best guess but itll be high.

 

hey, a guess is better than no guess

personally, i don't mind my car idling like a harley davidson. as long as it doesnt stall.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tekstyle &raquo;</TD></TR><TR><TD CLASS="quote">
my goals:
- possibly lower my vtec engagement point
- have crazy *** vtec lobes
</TD></TR></TABLE>
You want the opposite. In other words, the bigger the VTEC lobes, the higher you need to set your VTEC engagement point. For instance: Toda 'D' cams like VTEC set above 7,000 rpm.

 

aww damn it thanks man

 

Jun 3 is what you will want , cars idles fine and makes good top in power and crossover smooth , Toda B will have a little lumpy idle and not as good top end power as Jun 3 and last would be SK2 stage 2 are good top end cams and have stock idle but primary lobes are too small making crossover a bit rough to tune out the dip but they still make good top end power . I just saw you said stage 3 Sk2 , these are too big for a street engine even according to Skunk . You will have to cut the valveguides for retainer clearance and change springs often and need would never pass smog .

 

no after market cam will allow you to lower your vtec point only b16 cams will let you do that

 

I like my CTR intake cam, VTEC pulls strong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC 91 Civic &raquo;</TD></TR><TR><TD CLASS="quote">I like my CTR intake cam, VTEC pulls strong. </TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H22A-AllMotor &raquo;</TD></TR><TR><TD CLASS="quote"> I like my CTR intake cam, VTEC pulls strong.
</TD></TR></TABLE>

how does it feel at vtec from stock? did you have to reprogram ur ecu or run a piggy back computer?

thinking about the CTR or skunks stage 2s

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tekstyle &raquo;</TD></TR><TR><TD CLASS="quote">how does it feel at vtec from stock? did you have to reprogram ur ecu or run a piggy back computer?

thinking about the CTR or skunks stage 2s</TD></TR></TABLE>

Keep in mind I have the CTR intake and B16 Si exhaust cam, The CTR cam pulls a lot harder in VTEC.. If you look at the cam you will notice the larger VTEC lobes. Its just drop in, I added more fuel with VAFC.

 

any different between the CTR exhaust cams and then gsr ones?

 

Part # Description Advertised Duration Duration @ .050" Gross Lift w/1.55
Stock Specs from Civic Si Int-265 mid Exh-267 mid Int-219 mid Exh-214 mid Int-.412 mid Exh-.379 mid
Stock Specs from GSR Int-274 mid Exh-276 mid Int-230 mid Exh-216 mid Int-.423 mid Exh-.378 mid
Stock Specs from Civic Type R (JDM Spec) Int-278 mid Exh-280 mid Int-233 mid Exh-224 mid Int-.449 mid Exh-.417 mid

from crower.com


Modified by LSVTEC 91 Civic at 11:44 PM 8/29/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tekstyle &raquo;</TD></TR><TR><TD CLASS="quote">any different between the CTR exhaust cams and then gsr ones?</TD></TR></TABLE>

not really...from what i've read.

i'm looking into getting a CTR intake cam for my gsr motor and leaving the exhuast cam alone. i'm going to keep my stock redline though. i'm using a kenji chipped p28 ecu.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC 91 Civic &raquo;</TD></TR><TR><TD CLASS="quote">

Keep in mind I have the CTR intake and B16 Si exhaust cam, The CTR cam pulls a lot harder in VTEC.. If you look at the cam you will notice the larger VTEC lobes. Its just drop in, I added more fuel with VAFC.</TD></TR></TABLE>

just curious about "CTR cam pulls a lot harder in VTec," i thought vtec's pulling suppose to be a smooth transittion for most benefit in power bang gain, hard vtec pulling = tunning not precious? (am i wrong or i just have no idea?).

what do you mean by "pull harders?"

 

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

just curious about "CTR cam pulls a lot harder in VTec," i thought vtec's pulling suppose to be a smooth transittion for most benefit in power bang gain, hard vtec pulling = tunning not precious? (am i wrong or i just have no idea?).

what do you mean by "pull harders?"</TD></TR></TABLE>

i guess its when ur back feels like its glued to the seat more than before. thats how puller harder feels. just a guess. i don't think a smooth transition is anywhere in the equation unless your pirmary lobes are a little more aggressive to compensate for the difference in lift and durations when switching to the vtec lobes.