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hey guys, did a few searchs here n there and on k20a.org but i still wanted to ask you guys.
here is the deal. say i have dc5s A (jdm) and B(ausdm) both have the bolt on parts (I/H/E + Hondata tune by the same person)
power wise would i be expecting the same result or would the jdm be pumping out a lot more??
im just curious because both in stock form the jdm makes significantly more power, however is it the same after a tune and mods???
Yes the JDM k20 will produce more power, it has better cams and pistons. You'll see around 10kwatw difference after the mods. for example 142kw vs 152kw - so it is quite a bit.
thanks barefoot for the early reply
how much power would you expect for sale a setup on jdm k20 with toda headers, respectable CAI like injen and a respectable catback 2.5". tuned by a decent tuner. I read most people with similar setup get around the 130-138kw mark on the ausdm setup?
so out of interest is it as simple as fitting these JDM parts and change ecu or what's involved?
^ You get quality I/H/E fitted and usually about 1 week or so for your ecu Hondata modification and tuning. depending on where you are.
As barefoot said, there is about 10kw difference atw. However there is also a difference in the mid range where the JDM would also make more power, not just the overall peak.
surely is, and you'll probably several thousand dollars poorer from switching the pistons and cams to it's JDM counter part which is not worth the hassle. The labor involved will cost twice as much as the parts. This is when you'll get after market cams and pistons and be even more in debt hahaha.Quote:
Originally Posted by T-onedc2
yeah that sounds about right. The only JDM setups i've seen are in swaps. They generally make 140kw+ with decent bolt on's and tune. And if you go hard out and get all the best bolt on's etc... you can expect 150ish kwQuote:
Originally Posted by gxiang
i've seen a comparison on the track (video) somewhere in youtube. the JDM one act faster than the AUSDM / UKDM...
but are jdm k20's harder to come by than ausdm?
:thumbsup: I agree, The Aus Spec K20A2 v's JDM K20a (ITR spec) with same bolt ons and same tuner, dyno around 10kw more ATW. K20Z1 (ITS) Motor yield slightly better results then the Aus ITR Motor bolt on for bolt on!!Quote:
Originally Posted by barefootbonzai
Yes and about double the price too.!Quote:
Originally Posted by trism
Cheaper to use a ausdm if youre gonna be doing internal mods tho.!
Are you putting this into a DC5 or EP3, because if you arent and its going into say ek / eg toda dont make headers for it. You will need something like R crew, ssr.Quote:
Originally Posted by gxiang
^ Looks like he's got or looking to get a DC5 :>
depends who u knowQuote:
Originally Posted by Nepolian
so we can pull from this ~
For a daily engine with only bolt on mods a JDM K20 is best.
For a modified engine ( cams/pistons etc) its best to start with the AUDM engine as the end result will be similar
Starting with an audm engine, you will automatically have a few grand extra in the pocket. So putting that money towards the internals WOULD be more beneficial.Quote:
Originally Posted by bennjamin
Also if you were going to build, you wouldn't build with jdm internals, rather build with higher performance stuff. If not, just buy the jdm to start. It will be cheaper to do so in the first place.
One other thing to note is that jdm also have shorter final drive in the gbox so it accelerates quicker than the audm one.
i thought the gearbox was exactly the same. i guess not?
also LSDQuote:
Originally Posted by EK4R
jdm 4.9? audm 4.7?
didnt the ausdm dc5 come with LSD?Quote:
Originally Posted by 90LAN
sorry iam comparing this with a ausdm dc5r gearbox to a jdm dc5r gearbox
AUDM dc5r gearbox is Y2M3Quote:
Originally Posted by thebob
JDM dc5r gearbox is Y2M3
Exactly the same gearbox code , same final drive , same gear ratio
With DC5 Type S you can just simply run aftermarket LSD like Cusco etc.
both 4.9?
does ep3 have the same gearbox as well?
i cant imagine it wouldnt.
type s k20 no lsdQuote:
Originally Posted by EK4R
4.7 FD for JDM/AUDM k20 box. Think the new UK civic type R are a 5.1 FD but the gear ratio's are different.
Jdm has 5.1 final drive, audm 4.7. You can tell when driving at 100kph in 6th gear, jdm will be at approx. 4500rpm and audm will be at 3500rpm give or take one or two hundred rpm. Ask anyone who has jdm k20, they will tell you that this is true.
4.9 i believe, most aftermarket fds for K20 are 5.1.
4.7 FD....there not 4.9. The new civic R from UK has a 5.1 FD from factory.Quote:
Originally Posted by thebob
Quote:
Originally Posted by 7ypeR
http://img.photobucket.com/albums/v5...v3-28-08re.jpg
NPR3 ( EP3 JDM gearbox ) and Y2M3 (JDM DC5R and AUDM DC5R gearbox) have exactly the same ratio. 4.7 Final Drive.
USDM K20A2 have different final drive ( 4.3 ) they also have different ratio from 4th , 5th and 6th gear .
I stand corrected. Good info :thumbsup:
you sure 4500 at 6th gear? it sounds way too high for any factory car...Quote:
Originally Posted by 7ypeR
Its about 3500 @ 6th.Quote:
Originally Posted by xtercii
4500 @ 6th....may be with a 5.3+ FD......LOL
thx eg5 for that info.
i stand correct. gearbox on the jdm dc5 and the ausdm dc5 are xactly the same
I stand corrected to, i guess my informant further stands out that he has no idea what he is talking about.
In regards to the FD2R running same ratios for 1,2,3 and lower 4,5,6 as per Euro R gives it great acceleration with the 5.1 and still gives it a good cruising ratio up high.
Get off the line alot quicker than the EP and DC!
Easy way to find out. Anyone here have k20 out of jdm dc5r integra? They can maybe clarify this. Someone i knew used to have one and that was how i found out.Quote:
Originally Posted by xtercii
I assume the 4.7 final drive stands better than any other?
nar it's exactly the same as the aussie dc5r. sits around 3400ish cruising @ 100Quote:
Originally Posted by 7ypeR
what brand do u guys recommend, like the best on the market? sorry if i sound noob.. but i am curious lol
roughly how much will we be looking at? and where can we source one?
cheers
Rickee
Im assuming you're taking about the FD?Quote:
Originally Posted by Dr.k20z1
Cheaper to get a DC5R gearbox so you get the LSD too!
nar bro.. DC5 type s which = no lsd
i know i got ripped off lol
so any answers to my question above? ^^
:D
what are you talking about?
best brand fd?
haha yeah LOL
Cusco , quaiffeQuote:
Originally Posted by Dr.k20z1
Both good
dont know which is the best brand, however whats available is
tracy sport, spoon, j's racing, mfactory, OEM CRV is a couple i know.
j's and spoon is limited to FD of 5.062 which is the same as OEM CRV.
tracy sport has 5.4, 5.7, 6.0 and 6.33 if i'm not mistaken...
mfactory has 5.4 onwards.
i have a spoon FD, and at 100kmph it's not 4000rpm.. it's 3400-3500 rpm.
& 4.0 for drag racing & full 6 speed gear kits available soonQuote:
Originally Posted by wuism
thanks for the replies ppl.
how much power would you be expecting to pull at the HUB (not ATW) with a jdm with basic bolt ons? I/H/E