Complementing the K20

[rpm boy]

the K20 is an awsome motor from stock, but limitations for the various countries it goes to (polution,noise etc) prohibits honda from certain boltons that will further the motors power capabilities, thus what are your thoughts on complamentative parts (boltons) to make an Unopened k20 perform at its peak
many users are quite weary when it comes to "head work" etc and some just prefer an OEM motor

So what "IS" the best setup for an unopened K20?

DYNO figures to back up claims

[JDM.Power]

as everyone else would say, intake, headers, cat back exhaust, aftermarket computer,and bits and pieces here and there.
if all work has been carried out right in the first place and your engine is well maintain. the motor will be in good knick, to get the power down to the ground with some clutch and flywheel work also with the right suspension and right select of tires you will have and awesome K.

[2002 TeGgY]

best off the shelf boltons for your money IMO are as follows:

Injen Intake
Toda headers
Custom 3" catback/3 inch highflow metal cat

here is my dyno sheet before my head work, just with the above mods and kpro:

http://i277.photobucket.com/albums/kk46/fbarso01/26012009169.jpg

[Benson]

RBC manifold will do wonders for a K20 engine

[rpm boy]

nice figures 2002teggy, and i know what ur getting at JDM.power but i want to know the best of the best setups eg QTB's which headers 4-1,4-2-1 etc kpro or other ecu
off tap mods :)

[xtercii]

http://i85.photobucket.com/albums/k70/xtercii/Picture066.jpg

easy power with intake, SSR/DTR header, 3in exhaust and a good kpro tuner

[2002 TeGgY]

^^is that a JDM K20A?

[rpm boy]

qtb dyno sheet neone?
good figures ctercii, who was the tune done by?

[Type S Tony]

http://cgi.ebay.com/ebaymotors/RBC-manifold-packages-for-Honda-Acura-K-series-engines_W0QQcmdZViewItemQQ_trksidZp3286Q2em63Q2el1 177QQhashZitem170330577652QQitemZ170330577652QQptZ MotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

[xtercii]

yes it's a jap motor, it's tuned by Dave from Insight Motorsport.

[JDM.Power]

nice figures 2002teggy, and i know what ur getting at JDM.power but i want to know the best of the best setups eg QTB's which headers 4-1,4-2-1 etc kpro or other ecu
off tap mods :)

yeah top of the lines Brands, you pay for quality you end up with awesome results, TODA.au are one of the best if your looking for good power and qtb's setup. cant never go wrong with toda parts.

[2002 TeGgY]

did it have the JDMYard I/M and a 80mm T/B?

[xtercii]

no everything else is standard...Rcrew 3in exhaust, AEM intake and SSR header....

[2002 TeGgY]

oh ok, very nice...jdm k20 ftw

[rpm boy]

difference between jdm and audm k20's? tuning or more

[JDM.Power]

difference between jdm and audm k20's? tuning or more

Jap Spec has : 8400 red line (8900 cut out), 162kW/200Nm (147/192 AUDM), VTC works on both the intake and exhaust cycle (AUDM just intake), variable pressure exhaust sytem

http://www.ozhonda.com/forum/showthread.php?t=1822&page=2

[Benson]

yes it's a jap motor, it's tuned by Dave from Insight Motorsport.
:thumbsup:

[aaronng]

Jap Spec has : 8400 red line (8900 cut out), 162kW/200Nm (147/192 AUDM), VTC works on both the intake and exhaust cycle (AUDM just intake), variable pressure exhaust sytem

http://www.ozhonda.com/forum/showthread.php?t=1822&page=2
VTC is only on the intake side for JDM K20A as well.

[JDM.Power]

VTC is only on the intake side for JDM K20A as well.

quoted from the thread.

jdm has a higher comp ratio aswell.

end of the day jdm motors > audm everyone should know this.

[rpm boy]

really, vtc only works on the intake, what a jip, how do i fix this?

[aaronng]

really, vtc only works on the intake, what a jip, how do i fix this?

You can't on a Honda. Until they release a new engine with it.

Quick fix would be to buy an IS250 or an E46/E92 M3 to get VTC on intake and exhaust.

[Type S Tony]

I thought the k20z1 out of the type S has VTC working on both intake & exhaust

[rpm boy]

You can't on a Honda. Until they release a new engine with it.

Quick fix would be to buy an IS250 or an E46/E92 M3 to get VTC on intake and exhaust.

i thought it was only the k24 that had vtc only on the intake.....what a pain, should have built an eg instead, who wants to buy my EP3?

[Type S Tony]

have you posted pics of the EP3 yet?

[rpm boy]

Two versions of Honda's i-VTEC system can be found on K series engines; variable timing control (VTC) can be found on the intake cam of both versions. 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. In engines such as the K20A2 found in the Acura RSX Type-S, the VTEC system operates on both the intake and exhaust valves, allowing both to benefit from multiple cam profiles

[rpm boy]

have you posted pics of the EP3 yet?

what for, i now think its a piece of SH!t, might as well have the d16 single cam vtec

[aaronng]

Two versions of Honda's i-VTEC system can be found on K series engines; variable timing control (VTC) can be found on the intake cam of both versions. 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. In engines such as the K20A2 found in the Acura RSX Type-S, the VTEC system operates on both the intake and exhaust valves, allowing both to benefit from multiple cam profiles
Yes, that's what I said, VTC works only on the intake cams.

What you quoted said that in addition to having VTEC on intake and exhaust cams.

[Type S Tony]

what for, i now think its a piece of SH!t, might as well have the d16 single cam vtec

Nah bro relax, Ep3's are cool, my friends dad used to own one and he was a females magazine editor!

[aaronng]

what for, i now think its a piece of SH!t, might as well have the d16 single cam vtec

d16 > *
So much torque when combined with stock gearing. Drove an EG with it and I reckon it has more pulling torque in the same gear and same RPM (1500rpm) than my 2.4L engine.

[rpm boy]

Yes, that's what I said, VTC works only on the intake cams.

What you quoted said that in addition to having VTEC on intake and exhaust cams.

so VTC is only a fuel saving thing, and vtec is still both cams using the 3rd lobe when vtec kicks in??
sorry im lost....quite easy to do that to me

[aaronng]

so VTC is only a fuel saving thing, and vtec is still both cams using the 3rd lobe when vtec kicks in??
sorry im lost....quite easy to do that to me

VTC on intake cam for fuel saving and midrange torque, and you still have 3-lobe VTEC on both intake and exhaust cams for some high RPM screaming goodness. :thumbsup:

[rpm boy]

RIIIIGHT, bloody hell, confuse the shit out of me, so the benifit of the k20a2 having a cam open on eighter side would be better torque/power?

[EK4R]

http://cgi.ebay.com/ebaymotors/RBC-manifold-packages-for-Honda-Acura-K-series-engines_W0QQcmdZViewItemQQ_trksidZp3286Q2em63Q2el1 177QQhashZitem170330577652QQitemZ170330577652QQptZ MotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

is the rbc manifold similar/same to the manifold on the jdm k20? PRC i believe?

[aaronng]

RIIIIGHT, bloody hell, confuse the shit out of me, so the benifit of the k20a2 having a cam open on eighter side would be better torque/power?

What do you mean by the cam being open on either side?

[aaronng]

is the rbc manifold similar/same to the manifold on the jdm k20? PRC i believe?

Different. RBC is shorter and fatter than PRC. RBC is used on FD2R and USDM Civic Si.

[rpm boy]

K20A2 found in the Acura RSX Type-S, the VTEC system operates on both the intake and exhaust valves,

[EK4R]

Different. RBC is shorter and fatter than PRC. RBC is used on FN2R and USDM Civic Si.

ahh k

so its like RBC (fn2) > PRC (jdm k20) > PRB (ausdm k20)? in terms of performance

[2002 TeGgY]

Different. RBC is shorter and fatter than PRC. RBC is used on FN2R and USDM Civic Si.

isnt the RBB used on the FN2R? 100% sure that the FN2R does not use the RBC...

[fatboyz39]

isnt the RBB used on the FN2R? 100% sure that the FN2R does not use the RBC...

The JDM civic type R? They use the RBC manifolds. The Aussie civic type R uses different manifold. Cant remember the code for it but the yanks have had RBC and that manifold on the dyno and it shows great results.

JDM k20a over the AUSSIE k20 - cams, slightly more compression, manifold (slightly), ECU (there fuel is better), headers.

[2002 TeGgY]

yeh, as stated i said FN2R not FD2R (although i think the FN2 and FD2 use the same RBB manifold)

[aaronng]

isnt the RBB used on the FN2R? 100% sure that the FN2R does not use the RBC...

No, RBB is used on the Accord Euro. FN2R uses RSP. You can tell from a photo of the engine.

[aaronng]

The JDM civic type R? They use the RBC manifolds. The Aussie civic type R uses different manifold. Cant remember the code for it but the yanks have had RBC and that manifold on the dyno and it shows great results.

JDM k20a over the AUSSIE k20 - cams, slightly more compression, manifold (slightly), ECU (there fuel is better), headers.

Edit: You're right, JDM Civic Type R uses RBC

[fatboyz39]

Oh ok...got my model wrong...why did honda make so many manifolds...sigh...

RSP is like the aussie civic R ones?

[aaronng]

Oh ok...got my model wrong...why did honda make so many manifolds...sigh...

RSP is like the aussie civic R ones?
Maybe they couldn't make up their minds. lol

RSP:
http://i239.photobucket.com/albums/ff128/eur003/DSCF2592.jpg

[Type S Tony]

is the rbc manifold similar/same to the manifold on the jdm k20? PRC i believe?

Not to sure, gonna have to ask some1 that got a lil more experiance than me.

[rpm boy]

QTB's, able to use them with stock motor, or are cams required?
also with the headers being on the firewall side, does that free up alot of the restricton as apposed to a normally mounted motor?

[EG5]

QTB's, able to use them with stock motor, or are cams required?
also with the headers being on the firewall side, does that free up alot of the restricton as apposed to a normally mounted motor?

We ran ITB on a stock internal jdm k20a before without aftermarket cams.
http://k20a.org/z10/DSC01684.jpg

[rpm boy]

how did it go yonas? what QTB's, and who tuned it ?

[EG5]

how did it go yonas? what QTB's, and who tuned it ?

TWM brand
Toda AU tuned it
Ran good with it

[rpm boy]

TWM brand
Toda AU tuned it
Ran good with it

got the dyno sheet laying around :p

[EG5]

got the dyno sheet laying around :p

Its been like 4 years ago at least
Dont have any dyno sheet for it

[rpm boy]

do you recomend it or same as a good intake manifold?