Would I get any horsepower gain if i put a RSX-S intake manifold in my 02 RSX base model???? I already got a magnaflow catback 2" exhaust system, and a Injen cold air intake......how much would i gain about??

 

Get an RBC... but only if you have K-pro. I don't know how much gains you'll get in a base but seems how the RBC is shorter then PRB you'll have better flow and better gain. Don't change your manifold until you have K-pro or an engine management because you'll do more harm then good unless you have something that you can tune your car to make use of the changed effects with a different Mani.

 

alright cool, im doing my research to get the right set up
thanks

 

eeek i hope you have not purchased the RBC yet!

you are sure to see a loss of power w/o supporting mods, i would suggest cams and vavle train or boosting if you are thinking RBC.








thats my install of my RBC on my cammed k20a2 in my ep3. The intake manifold is so much larger that i had to cut my radiator support to make it fit but with a built motor worth every penny. You also have to get something called a karcepts adapter to make the throttle body to fit on the RBC (2006 si im) you will also have to shave the water port off of the end of the RBC to make it fit where your power steering pump is

 

nah i havent bought anything yet, im not looking for something crazy, just basic mods that i can get a bit more pick up than stock, cool built on ur car
thanks

 

If your trying to get a little more out of it, i would go the normal intake, header/race header, exhaust

also try some weight reduction and a short throw shifter might help a little bit.

 

yeah i already picked up a magnaflow catback exhaust 2", an Injen Cold air intake which im not sure to put in cause it rains too much in SoFla, and im stilling thinkin if i wanna get some headers..... but i guess with that i should feel a better ride

 

Get a race header it will give you quite a bit of difference... my x-G/F had an ep3 with a race header and i had mine w/o a race head and her car walked all over mine. With a race header and kpro you would be happy you could raise the rev limiter to 7300 rpms and it give you alittle extra revs

 

that sounds like a nice set up, ill look in to it.....

 

did you read what i wrote before getting the rbc skivik?

and short throws do nothing to your car but more wear and tear on your synchros. Save the money up and use it for something that actually makes you faster. the synchros were geared for the OEM shifter not an SS.

 

you shouldent give people info w/e the full info they are looking for. if he went based on getting kpro and an RBC then he would have a big waste of money without some more major mods. No disrespect just saying
Another thing you could consider doing is putting a k20a2 head on the a3 bottom end that would give you a little bit more power and using the type-r cams with rbc then would be beneficial

 

what? ok this is what i'm getting from what you're saying:

1. it would be a waste of money to buy an rbc if he bought K-pro first?
Did you even understand his question? He was asking about an intake manifold, nothing else. I told him it is better to go with an rbc manifold instead of a prb manifold (if he was going with an OEM IM replacement) because the rbc manifold is shorter. That is why the rbc outperforms any OEM IM. So that is why i suggested the RBC over the PRB. I also told him in order to see those gains he would need K-pro first. I did mention if he just put an rbc manifold on his car w/o K-pro or any engine management, he would do more harm then good. He didn't ask about any other parts, any other cams or anything. He just asked if he used the rsx-s IM (PRB) manifold would he see any gains. So i replied with the RBC being better then the PRB if he wanted to see gains. so where are we getting this missunderstanding?

2. If you're talking about him just getting K-pro and an RBC he would not see gains? I don't know how the A3 will react but i'm pretty sure it wont have an inclement effect seems how the RBC manifold on an a2/z1 w/o any "supporting mods" as you state (except the k-pro) has significant gains. you do not need to fully build your motor in order to utilize the potential of an IM. You however need an engine management that will allow you to tune your car to utilize the potential of a changed item.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skivik &raquo;</TD></TR><TR><TD CLASS="quote">Another thing you could consider doing is putting a k20a2 head on the a3 bottom end that would give you a little bit more power and using the type-r cams with rbc then would be beneficial </TD></TR></TABLE>
You can do this but it is painful and costs money to get this correctly done. Just thinking you can slap an A2 head on an A3 bottem end wont cut it. There is more to it then that. It would be cost effective to just buy an A2 and go from there.




Modified by risktypeS at 10:16 PM 10/31/2007

 

What i was saying is a k20a3 w/o supporting mods cams, or boost would yeild no gain if not a loss in power.

 

why?

 

just like any other mod, to much isnt alway the best. Do not forget that The VTEC system on engines like the K20A3 only operate on the intake cam, at low RPM only one intake valve is fully opened, the other opening just slightly to create a swirl effect in the combustion chamber for improved fuel atomization. At high rpm both intake valves open fully to improve engine breathing. This system would have to hard time due to the amount for air being pushed in to have enough volicity to stabalize the incoming air. This resulting in turbulant airflow making an engine lose low range, and mid range power and resulting with maybe the same in over all peak power.

 

i know how the a3 works and what vtec system it utilizes.. my why question is indirectly asking, have you done this and what supporting facts do you have that would make an rbc be not effective on the a3?

 

I have not but people on EPhatch.com has

 

i guess that'll work. I don't know how the a3 reacts to mods so i can't vouch for much of anything about the a3. that's why i ask.

 

thats kewl, i didnt get to do much with mine before i over reved and bent a valve

 

That sucks... so you went with the A2?

 

hahaha had it just laying around... i have a blown k20a3 and a stripped k20a2 right now

 

so you were originally going with an a2?

 

yeah i had it waiting because i was going to do it over the winter k20a2 with 6 speed because my 5 speed syncros were shot. I went out and had a couple and let my freind drive and told him to beat on it and he launched 2nd gear at 80 when he went to hit fourth so that night i tore that engine out and the next night put the new engine in. lol

 

that's koo.. well have fun with your A2

 

thanks man... well enjoy yours that came stock