I am getting the JR header for my EP and it already has the Injen CAI and Magnaflow exhaust on it. My question to you all is what mod works well and is worth while for the K20? I know I can bottle feed it or boost it or even swap in an a2, but not at the moment because it is my commuter car. I hear the underdrive pulleys actually free up quite a bit of power, any truth? What else should I do motor-wise to her?

 

Hondata?

 

get hondata... its such a big gain.... i was in shock when i drove my car... i was in my house slippers with a big *** grin hittin 8600RPM.... hahaha... its all worth the money

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ep3minivan &raquo;</TD></TR><TR><TD CLASS="quote">Hondata? </TD></TR></TABLE>

 

There's a guy in the classifieds that does
throttle body overboring (sp?). I would do it,
but can't afford the down time right now.

Some other ep owners have done this and
shown gains of ~5hp/5tq. Good enough
for me (costs about $100).

 

he's got an SI, so no 8600 rpm's for him. However hondata for the SI is still a pretty decent mod. Go for it. http://www.hondata.com

 

Thats what I figured. What about tossing on the Type S TB or are the bolt pattens the same?

 

Hondata or a Cam setup...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boosted Ego &raquo;</TD></TR><TR><TD CLASS="quote">Thats what I figured. What about tossing on the Type S TB or are the bolt pattens the same?</TD></TR></TABLE>

IIRC, the Si and RSX-S have the same TB. But I could be wrong.
There was a post on this a while back, I should look for it.

 

If this is the case then I can get the Spoon TB. Expensive yes, but I think it would make a pretty good difference.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boosted Ego &raquo;</TD></TR><TR><TD CLASS="quote">If this is the case then I can get the Spoon TB. Expensive yes, but I think it would make a pretty good difference.</TD></TR></TABLE>

Yeah, I would double check that before you take my word for it.

I know this, though - I bought an AEM SRI for an RSX-S and tried to use it
on my Si. The piping (and connector piece of rubber, or whatever it is) was
larger than the TB on my Si. Maybe it's just the internal diameter that's the
same? I dunno. I'm gonna head over to clubrsx and see what I can find. I'll
bump that old TB thread, too.

EDIT: OK, a couple good posts over there. This looks like a winner: http://forums.clubrsx.com/show...38580

I really want to do this TB bore now...damn I need a 2nd car, though.

 

your best bet now would probably be to get the hondata manifold gasket and hondata.

 

Yea, I think that I will go with the overbore stock TB. So the list looks like this: JR header, overbore TB, Hondata. I have convinced the wife to JRSC it too, so the Hondata may have to wait.

 

Do the pullies add anything?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boosted Ego &raquo;</TD></TR><TR><TD CLASS="quote">Do the pullies add anything?</TD></TR></TABLE>

no.

Get a type-s head and ecu.

 

Just wondering, how did you manage that?

03 Si Bolt ons and stock header 14.7@105

 

Hondata reflashed.
Hondata manifold gasket.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicvtec1ps &raquo;</TD></TR><TR><TD CLASS="quote">Hondata reflashed.
Hondata manifold gasket.
</TD></TR></TABLE>

ok what exactly is the manifold gasket? i hear people talk of this all the time. sorry i am still kinda new to the k20 club

 

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

ok what exactly is the manifold gasket? i hear people talk of this all the time. sorry i am still kinda new to the k20 club </TD></TR></TABLE>

Your car has a metallic (of some sort) manifold gasket on the intake. It's a thin
piece that goes between your intake manifold and the engine head. Since it's
metallic, it allows heat to transfer from the head/block to the intake manifold
(and the incoming intake air/fuel mix).

The Hondata gasket is made of some sort of plastic, so heat does not transfer
(as well, or if at all). This helps keep incoming air cool - it really goes well
with a cold air intake.

The easiest way to summarize is it to tell you to put your hands on your
intake manifold after you've driven for a few mins. It will be *HOT* to the
touch. With the Hondata gasket, you can put your hands on it and it will only
be warm to the touch.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by andyep3 &raquo;</TD></TR><TR><TD CLASS="quote">

Your car has a metallic (of some sort) manifold gasket on the intake. It's a thin
piece that goes between your intake manifold and the engine head. Since it's
metallic, it allows heat to transfer from the head/block to the intake manifold
(and the incoming intake air/fuel mix).

The Hondata gasket is made of some sort of plastic, so heat does not transfer
(as well, or if at all). This helps keep incoming air cool - it really goes well
with a cold air intake.

The easiest way to summarize is it to tell you to put your hands on your
intake manifold after you've driven for a few mins. It will be *HOT* to the
touch. With the Hondata gasket, you can put your hands on it and it will only
be warm to the touch. </TD></TR></TABLE>

how much would a shop charge to put that in? is it easy enough for someone with good knowledge of cars to put in myself?

 

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

how much would a shop charge to put that in? is it easy enough for someone with good knowledge of cars to put in myself?</TD></TR></TABLE>

I should be sleeping.

Anyway, I dunno what a shop would charge. It took a buddy of mine and I about
3-4 hours to put it in, but we were taking our time.
The thing that makes it a pain is that you have to remove your intake (or loosen
it), throttle body AND fuel rail/injectors to get to all the bolts you need. Once
that's done, it's fairly simple and just a matter of putting everything back
together.

 

If you're gonna get the IM gasket put in, throw it in there when installing an intake or new intake manifold. It's not the easiest thing to get to.

 

anyone know what the K20A3 will rev to safely? I have a Hondata unit from the car I sold to buy my ep3, but haven't had the time to get it installed and tuned. Planning on the same mods as this cat, i/h/e im phenolic spacer, hondata, because my EP3 is a lease.

 

dunno if this would be considered a susp mod or engine mod but ive heard alot of great things about es motor mounts

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by the giant EP3 &raquo;</TD></TR><TR><TD CLASS="quote">anyone know what the K20A3 will rev to safely? I have a Hondata unit from the car I sold to buy my ep3, but haven't had the time to get it installed and tuned. Planning on the same mods as this cat, i/h/e im phenolic spacer, hondata, because my EP3 is a lease.</TD></TR></TABLE>

You need the flash for the K20A3 (send them your stock ECU, they reflash it and
send back). You can't use a Hondata unit from another car (especially b-series),
if that's what you were trying/thinking about. It wasn't quite clear in your post.

The flash revs to 7700rpm. More info on their site Hondata's web page.
Several people have had it on their car for 20-30K+ miles with no problems.