Wassup, i was wondering how many people have type s cams in their 5gens, i heard they make a big difference, what are your guy's input?

 

I haven't done extensive research as to whether or not there safe and compatable. But from some search that you find using HT some say good things about them and other say bad.
-Consider the following.
-Type-S has 10.6:1 compression pistons.
-Different valves.
-And I believe some differences in the Intake Manifold.
-Keep in mind that the USDM Prelude and the Type-S Prelude aren't exactly the same.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RAB &raquo;</TD></TR><TR><TD CLASS="quote">Type-S has 10.6:1 compression pistons.</TD></TR></TABLE>

I thought the Type S pistons were 11:1?

 

Not 100% sure just pulled that # from my vauge memory.

 

jdm h22a has 10.6
jdm S spec has 11.0
euro-R also has 11.0

 

The most common issue that I've seen reported w/ type s cams is wear on the valverain; the coomon "theory" is that the type s ramp rate is much greater than the v. the USDM base model or SH cam ramprate, and that this tends to scorch the valvetrain components on USDM heads even if type S valve springs are used (allegedly the USDM heads are "softer" than the JDM heads.) If you'd like to err of on the side of caution, get the type SH cams (if you've got a base model.) Otherwise, just leave it be. And yes, type S c/r is 11:1, has different valvesprings/retainers/ same dual runner manifold (Euro accord type R has single runner manifold), but that's about the it.

 

Base model cams are different than SH cams? I thought they had the same engine...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95 Gizzer &raquo;</TD></TR><TR><TD CLASS="quote">Base model cams are different than SH cams? I thought they had the same engine...</TD></TR></TABLE>

Yah, same engine, but different cams. The SH cams are a bit more aggressive (lift & duration) to compensate for the ATTS system.

 

sounds good. I guess ill stick to my cams for now until i feel the need of gettin new cams

 

heres a link to some who has type s cams that evaluated it, dyno is provided for the cams also, i have type s cams and they pull pretty decent for honda cams, and being that they are honda cams the idle is pretty good also

http://www.geocities.com/timn_1/type_s_cams.html

 

thanks for the link areyouasian

 

does anyone have any experiance with putting the SH cams into a base model? I hadn't heard about this until now...would the gains be worth doing or would some aftermarket cams be more worth the trouble of putting different cams in?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bb6h22a &raquo;</TD></TR><TR><TD CLASS="quote">

Yah, same engine, but different cams. The SH cams are a bit more aggressive (lift & duration) to compensate for the ATTS system. </TD></TR></TABLE>

Dude get you INFO right..!!..
SH and BASE model cams are the SAME..
Do a cross referance on the part #'s before you write some false statement.
Now you got some poor guy buying SH cams for his BASE lude, thinking hes gonna gain some extra HP, and alls hes going to get is the same cams he started with..

 

Dude his info about the Type SH cams is correct. Maybe you should check the Helm manual specs for each cam before going off on someone.

 

Ha DR and hubert are right if I were you guys I'd never doubt road racers.
Directly from helms
Base
-------------
Intake Exhaust
Primary 34.041mm 33.745mm
Mid (VTEC) 36.856mm 36.323mm
Secondary 34.971mm 34.683mm
SH
--------------
Intake Exhaust
Primary Same Same
Mid (VTEC) 37.229 36.704
Secondary Same Same

 

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

Dude get you INFO right..!!..
SH and BASE model cams are the SAME..
Do a cross referance on the part #'s before you write some false statement.
Now you got some poor guy buying SH cams for his BASE lude, thinking hes gonna gain some extra HP, and alls hes going to get is the same cams he started with.. </TD></TR></TABLE>

Here's that glass of water, to help you wash your foot down.

 

Then I guess people that order Base lude cames are going to get SH cams and so on...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cottonwoodz &raquo;</TD></TR><TR><TD CLASS="quote">Then I guess people that order Base lude cames are going to get SH cams and so on... </TD></TR></TABLE>


Why would that be the case? It's a different set of cams.

 

Because, they have the same part #...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cottonwoodz &raquo;</TD></TR><TR><TD CLASS="quote">Because, they have the same part #... </TD></TR></TABLE>


Well either the HELMS is wrong, or Honda doesn't want you buyin SH cams.

 

so does anyone know for a fact that he SH cams are a bit more aggressive?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sslude &raquo;</TD></TR><TR><TD CLASS="quote">so does anyone know for a fact that he SH cams are a bit more aggressive?</TD></TR></TABLE>
I did just provide the base and SH cam specs the SH VTEC lobes are about .5mm larger, so you get more lift.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by areyouasian &raquo;</TD></TR><TR><TD CLASS="quote">heres a link to some who has type s cams that evaluated it, dyno is provided for the cams also, i have type s cams and they pull pretty decent for honda cams, and being that they are honda cams the idle is pretty good also

http://www.geocities.com/timn_1/type_s_cams.html </TD></TR></TABLE>
Just remembered the HP that, that guy is producing is what I'm producing with no S cams. Just an observation.

 

Just to add I picked up with .3 tens with the type-s cams and some butt dyno changing the skunk2 cam gears....with one trip to the track with them.

 

Ive heard of the type s cams scoring the lifters cuz of the stock LMA's.The type s cams are pretty agreesive and the stock lma's may not have enough room for the higher lifts.Ive heard of someone using teg type r lma's.