hey wuddup everybody need some help and advise. i got me a k20a2 motor and current have the k20a3 jrsc in my car (ep3)
i already got the rrc manifold for the k20.
but now im debating if i should just smack the k20a2 with the rrc manifold n call it a day or i should keep the k20a3 jrsc and smack it on the k20a2.
Also dont know if the motor can handle the sc cuz the k20a2 compression is 11.1 kind of high.
need some help guys ive seen youtube video of ppl putting the k20a2 with the jrsc n dyno at 293whp 203tq

ohh and sorry if im posting this on the wrong thread...

 

My vote is "keep the JRSC", as much as I want to buy it from you, I think you can always use more hp! Also, with some planning, you could make it a safe DD

 

are you kidding?? More RSX guys run the s/c than EP3 guys. I'm putting over 300whp with a charger and my buddy with his k20a2 is putting down 290whp all day. The a2 is a better built engine period. Two guys I know, one in my club, is throwing over 500whp on his turbo k20a2... i wouldn't be worried at all

 

definatly go with the sc and get a kpro that would make for a great dd with some great power

 

this^

or you could sell both and get a k24a2. those are more fun


too bad the tranny will peace out when it gets a good amount of power

 

I changed my mind, just sell me your jrsc... plz...?

 

Yeah, which is why guys on K20a.org are running 10/11 second quarter mile passes with 700whp+ on STOCK trannies

Please don't spread misinformation.

 

so i dont need no cams or lower compression piston?
if i do keep the jrsc i wouldnt have to worry about finding the idler pulley n use the sc pulley.

 

I think you just need that adapter I pm'ed you about, or unless you go to 3.7 pulley or something..., z3 motor has similar compression ratio, but JRSC's kit works w/o cam/valve/etc., but Kpro is neede though..., like I said, just sell me and you'll delete the option of SC, hence, no worries, wah-la!!! lol...

 

not really misinfo. The gears, specificly 2nd gear, is really weak. Shears right off. Which is why most K series guys makin over 500hp run a 5 speed tranny.

 

Yeah, the OEM EP3 tranny

 

high compression and boost is where its at. do it. even if you were to build a motor for boost i wouldnt suggest anything lower than 10-1 cr. its more fun this way. plus e85 is becoming more widely used which is helpful when running setups like this. but yeah high comp. and boost is okay, IF you are tuned, PROPERLY.

 

I thought you meant stock Type S trannys. Yeah EP3 trans are teh GoOd Ones.

 

I'm on my 3rd tranny with only 347whp supercharged... k series trannies suck

 

I like NA better, but if you have the SC already it kinda seems like a win/win in my opinion.

Sounds like the QC has a nice EP in the making

 

^ im on my 2nd tranny i agree with you, im about to back to a 5 speed and sell my 6 speed when i get my turbo setup

 

Maybe it's not the tranny that's the problem, but the driver....

 

the port on the k20a3 sc should be the same as the k20a2 head port? im guessing

 

nahhh the 6 speed is doing just the job with my ultra light flywheel and cc stage 4 clutch last trans went bad due to clutch going out and bad throwout bearing for almost a year. yes i know give me a facepalm i deserve it. oh well

 

I thought people the run the 5 speed tranny for longer gears...

 

my bad, 5 speeds are stronger, but theres still some guys with no luck with those either

 

I'd go w/ 5sp, especially if you're running k24 + FI setup. 6sp's too short for k24's.
So..., did you decide you wanna sell me your SC??? lol...

 

haha im still deciding which one. cuz if i keep the jrsc i gotta sale the rrc manifold sigh n i highly dout anybody wants to buy the rrc manifold for $589 comes with the intake manifold gasket, throttle body gasket, n throttle body adapter

 

I'd agree with these guys, K20a2 gives 4psi of boost standard with a JRSC and can safely run at up to 8psi on a smaller pulley without changing anything to the internals.

You'll need a race exhaust manifold/header and decent exhaust system as well as K Pro don't forget but as others have said you'll easily see 300+whp on 4psi.

K20a2 N/A will take a LOT of money and still wouldn't get that power if you want to keep it N/A.

Do a search on www.type-r-owners.co.uk or www.civictype-r.co.uk and look for a guy called TP. He had the most powerful N/A k20a2 in the UK and was running approx 340whp (with NOS) but cost him a fortune, about £20k in total! It's all documented on there somewhere though.

 

Knew I'd find it somewhere, here's his car and the list of stuff he had on it. Not sure what it was putting out in total in the end but was in J-Tuner magazine and getting 1/4 mile times in the 9's.

http://civictype-r.co.uk/forum/viewt...p?f=39&t=85010

Let me know if it doesnt let you see it without being a member and i'll copy and paste it all in.