k20a and k20z

[_CiVIC_]

I dunno about the K&N typhoon kits... I heard the oil based filters aren't entirely necessary, they work really well on carby motors but dunno about EFI's.. Plus you have to be really careful when oiling up the k&n's, only because if you put too much oil, you can even clogg up your throttle body..

i'd stick with dry based filters

[locote]

i always thought the DC5R K20a was same as DC5S K20a?????

[_CiVIC_]

i always thought the DC5R K20a was same as DC5S K20a?????

they are very similar in setup, just the engine code is a bit different.. the dc5r has a k20a and the dc5s is a k20z, bit more power out of the S, but who really knows why haha

[locote]

similar code to the new civic sport too hey???

[_CiVIC_]

similar code to the new civic sport too hey???

yup.. the civic sport has the detuned k20z in it

[aaronng]

yup.. the civic sport has the detuned k20z in it

No it doesn't. The k20z2 and k20z3 have different head setups. It's not detuned. Detuned means same hardware but with different ECU to change the fuel/ignition maps to produce less power. In the case of the k20z3, the hardware is different. It has more aggressive cams as well as a full 3 lobe i-VTEC system on both intake and exhaust. The k20z2 on the other hand has only a 2 lobe i-vtec on the intake side. So it works in 12v/16v modes while the k20z3 is using all 16 valves all the time.

[aaronng]

they are very similar in setup, just the engine code is a bit different.. the dc5r has a k20a and the dc5s is a k20z, bit more power out of the S, but who really knows why haha

k20z3 has more aggressive cams as well as a different ECU map.

[aaronng]

if it's for K20A2 dont get an Apexi SRI....

I've seen 2 seperate dynos of SRI with the *bonnet up* and the lost power....

Both CAI and SRI sounds better than stock. SRI has better throttle response but less top end while CAI has worse throttle response and a loss of bottom end but more gains at peak power rpm.

[Tofu]

but in reguards to an SRI in the DC5...don't bother
the design of the DC5 engine bay really stuffs up the airflow for any improved performance, despite what dyno figures read. In real life terms, when the weather is hot, the SRI is useless.

I've had Injen SRI and Injen CAI on my DC5...it's night and day difference
the CAI throttle responce is neglectable

[AMS-89Q]

DC5R and perhaps DC5S are designed to be held at high rpms. Hence, you'd rather top end than initial response. If you can afford it get a Mugen CAI very good a bit pricy though but i heard GruppM is just as good but, with a more aggressive sound when the mid and high end rpms. Your choice, NA people have to be picky with mods to maximise power output unlike turbos.

Nice write up Marcus...

[FunkyR]

Mmmm what tofu said...

I went from top fuel power chamber SRI (prob one of the better designed SRIs as it directs the air filter away from the headers and engine) to Gruppe M.... there was soooo much difference it wasnt funny....

[R123]

so informative Marcus!! great work!!!