DC2R upgrades

[lukeaye]

Ive read alot about how trying to upgrade your DC2R can result in minimal power upgrades and in some instances even loss....as the DC2R is pretty much tuned by honda to its highest output given its equipment....this in mind can anyone tell me if upgrades such as headers....exhaust....filters and other non turbo related upgrades will have much off an affect on performance? also bearing price in mind is it worth it?

[m3ntAL_l2]

leave the enegin unless ur plaining to spend big bucks to do it right.
just get coils n a set of good tyres 1st.
type r desive qaulity parts not just sum cheap replicas aka xforce ect....

[SiReal]

i believe the only way to upgrade power would be to buy trusted, R&D'd, premium honda tuning parts.

I.e. toda cam gears, spoon/toda/mugen exhaust systems, brand name intake throttles etc.

don't buy universal "one size fits all" then customise it.

Bolt on, brand name parts are probably the way to go.

[lukeaye]

yeah ive heard that.....nobody has really specified power gains though...i no its hard to really give a figure but id just like to no if its worthwile....

[m3ntAL_l2]

wots ur budget???? and wot power ue aiming at??
good I/H/E will cost u around $3k and give u around wot??? 15-20kw? without tunning.
good tuning is around $250/hr so add another 500 or sumthin for tunnin then u will get 30kw?
so after spending $4k ur car will sit on ~150-60atw maybe

[dudeling7]

type r's cant make 150 - 160 with bolt ones lol thats like turbo power.

bolt ones i reckon add about 10-15kw atw with quality parts.

a friend of mine got toda headers, toda cat, fuji exhaust and j racing intake and made an extra 13kw atw.

also depends what type r we are talking about the DC2 (B18C) or DC5 (K20) because both engines respond differently to mods too.

[Barge Ass]

Yeah 150-160kw ATW is a huge exag for $4k, now at the fly that seems possible. You need a total engine rebuild probably over $10k to get that kind of power at the wheels I believe.

[JasonGilholme]

DLO01's DC2R Turbo just made 204 kw atw with 8 psi on a standard block and head. :cool:

Turbo would be the best way to go.

[Barge Ass]

I don't think that was an el cheapo tho right????

[JasonGilholme]

wasn't bolt on but he did say that it wasn't heaps extra compared to a bolt on kit.

Definately worth the extra money compared to a 'kit'

[Barge Ass]

DLO01's DC2R Turbo just made 204 kw atw with 8 psi on a standard block and head. :cool:

Turbo would be the best way to go.

With just about everything else upgraded and the air con removed.

[Barge Ass]

I think an AVO stage 2 will make about 200kw peak at the fly for $8k installed.

[JasonGilholme]

With just about everything else upgraded and the air con removed.

removing ac won't give any/much extra on the dyno.

Fuel system was upgraded to cater for mods further down the track.

Everything else would be found in your regular kit. Except quality parts were used.

[Barge Ass]

My point about the air con was not the 0.000001kw/tonne increase because of removed weight but the overall drivability is decreased.

[JasonGilholme]

driveability is decreased???

You mean confort? not driveability.

[Barge Ass]

Comfort/drivability lets not get too anal, this isn't english lit. You know what I mean.:p

It's just something to take into account because DL001's is a hardcore weekender and not something he will be commuting to work each day with a little "spirited" driving thrown in here and there for a quick thrill. I just playing devil's advocate for the guy.

[JasonGilholme]

well in my books removing the AC would improve the driveability (ie how easy the car is to drive - to get it moving etc cause its lighter and theres less load on the engine) but it would decrease the comfort (cause on hot days you gotta have windows down etc).

anyway, the faster you wanna go the more have to sacrafice. (money included lol)

[lukeaye]

yeah mines a DC2R.......anymore then 160kw at the fly.....and id have to start upgrading other shit....10k for a rebuilt engine....with that sort of gain....dont think id bother....yeah dean's DC2R looks good but he has spent a **** load....i dont have that money...or time....maybe just those exhaust header upgrades would be enuf....13kw at the wheels isnt bad....

[Barge Ass]

well in my books removing the AC would improve the driveability (ie how easy the car is to drive - to get it moving etc cause its lighter and theres less load on the engine) but it would decrease the comfort (cause on hot days you gotta have windows down etc).

anyway, the faster you wanna go the more have to sacrafice. (money included lol)
True and true, point taken. Down here in foggy Melb not having air con to defog the windows quickly would be friggin downright dangerous and that reduces "being able to drive it".

[Barge Ass]

160kw at the fly is about 200 old horsies/tonne in the DC2R and thats more than enough to frighten grannies and beat a lot of cars at the lights.

[lukeaye]

so if i just do headers, exhaust, intake and wat not dudling u reckon i will see about 40kw at the flywheel???? 180kw sounds pretty good to me.....and yes ur rite at that sort of power id eat most cars

[lukeaye]

that would be wat about 5k?

[HarryS]

just get I/H/E and make sure they are quality parts.

do you want top end power or more bottom end/middle???

top end: get 4-1 headers
bottom/middle: get 4-2-1 headers

in terms of intake, get the mugen intake kit....it does cost alot(ranging from 600 to 800) but it does increase performance.

[lukeaye]

just for the record it is my daily commuter haha...but i live 2 mins from work...and i dont take it to hang out at maccas and shit...i just have fun in it when i need to go for a drive....it does a few coast trips which sucks....because it revs at about 4,000rpm in 5th at 115km/h but overall its not to bad on fuel...i owned a prelude before this and the economy is similar....that was a 2ltr but.....yeah i/h/e is prob the best idea.....and insurance is another thing i put a turbo in....im gone im already paying 3200 sooooo thats gotta be considered....wat a waste i could have spent 3200 on mods......farkkkkkk

[Barge Ass]

As Adrian from Toda has said a car with a lightened fly and sports clutch with a reduced final drive ratio will eat an I/H/E car at the lights, because of reduced moment of inertia you will see greatly improved throttle response.
If its your daily then consider an organic heavy duty clutch and a lightweight flywheel. It will take a little adjustment but is worth it apparently.

[Barge Ass]

I don't think you'll see 40kw gains with I/H/E. You're getting 141kw at the fly stock in a DC2R. I don't know about ECU remapping and stuff but maybe with aggressive tuning you'll see 160kw. You are sacrificing economy and engine life mind you so it's all a trade off.
The parts must be purchased with a significant end result in mind, they need to work in unison.
It's no good getting extractors designed for mid/low range torque gains and plopping a 3inch exhaust on.

[Barge Ass]

I take it you're on you p's so I'd also factor in extra insurance (notify your insurance company of mods or they will f*&k you over) and the fact that I/H/E mods are an easy target for police to defect you whereas they will have a pretty f*&ked time looking for a sports clutch and flywheel on the side of the road.

[lukeaye]

all very true.......so u reckon the heavy duty clutch and lightweight flywheel will see significant gains in acceleration? o hang on changing the final drive ratio is gonna **** my highway driving hard.....

[Barge Ass]

Yeah that's why I left it out. lol
The stock 4.7ish is already pretty nasty. I feel for new CTR owners their's is 5.01 or something.

[lukeaye]

so wat ur saying is.....i cant do shit.....haha o well at least i found out now rather then later when i spent the mullah

[lukeaye]

illl just buy something faster in a year....i can buy my mates 2005 DC5R 60k for about 24k.....so maybe ill just upgrade to that abit later

[JasonGilholme]

dc2r is quicker

[Barge Ass]

No the flywheel and clutch will get you off the line faster. Higher coefficient of friction for less slippage and the faster spooling fly will do the trick.
Stick with the DC2R it's just as good (if not better) as a DC5R which is an Acura RSXS anyways.
I'm being bias coz I have one tho it's just what I've read. Evo mag voted the DC2R as best handling fronter of all time and the DC5R didn't get a mention.

[gheybo]

dc2r is quicker

dc2r is not necessary, if your talking about stock then yea it's quicker. dc5r has 147KW while the dc2r has 141KW

[lukeaye]

yeah i read that....and id have to say understeer is non existant in my car....it scares me how fast it can go....i havent probed the limit yet....but yeah im just thinking of my wallet...i wont lose any money on this car in a year....so if i upgrade to the DC5R i can just keep my run going.....the DC5R handles as well if nto better....they have a much stiffer chasis...and i dont no about ur claim...i dont think the DC2R is quicker over a 1/4 mile

[lukeaye]

i mean the DC5R is quicker over the 1/4 mile

[Barge Ass]

Well the DC2R has 3ish kw/tonne more than the DC5r so it's pretty debatable.
But it comes down to driver skill ie ability to stay in the powerband. I don't know the torque curves by rote but maybe the DC5R has more usable because it is a later model.

[lukeaye]

yeah but the DC5R runs a different gearbox..there are some differences...but all i can see are claimed times...ill have to give my mate a run....ill tell u how i go

[Barge Ass]

It puts the ideology more in perspective if I say a Lotus is slower than a DC5R because it has a CTR engine with a peak of 141kw, not 147. No it's not and significantly so.

[Barge Ass]

yeah but the DC5R runs a different gearbox..there are some differences...but all i can see are claimed times...ill have to give my mate a run....ill tell u how i go
Cool but swap drivers and do quite a few as statistical variance is very significant.

[lukeaye]

yeah good point....i also like the look of my yellow DC2R better :D its really suprising how many ppl no wat they are are admire them....except como and ford drivers.....aghhhhhh how i love them haha

[Barge Ass]

I love mine too!:p I want to give it babies.:o Can't wait for the rev rev of little DC2R RC's around the house.

[Barge Ass]

DC2R probably needs a minuscule wear and tear handicap too.

[lukeaye]

u got any mods on urs barge ass?

[Barge Ass]

Nope, just got it a few weeks ago from Honda with 58000 on the clock.

[lukeaye]

o really how much u get that 4....mines got 93k one owner full log...stock 19,600 i got it 4

[Barge Ass]

Too much! lol

[lukeaye]

how much u pay?

[TheSaint]

what about supercharging?

[lukeaye]

supercharging is no good....better for high torque...DC2RS arent a high torque application. The only way to go is turbo

[Barge Ass]

Plenty of B18 R's have been supercharged, a lot of them in Lotus's. The engine will never be a torque monster because of the small displacement.
From what I've read it's considered inferior to turbocharging in terms of peak power but if you want more torque early and no lag it might suit a daily more than a turbo.
In terms of cost for a good kit and upgrades I think the prices will be similar. Remember at some point if you plonk in a HUGE turbo or SC you'll have to decompress too.

[lukeaye]

say goodbye to fuel efficiency for a daily driver though....but yeah ur rite it would help with that lack of low end power....and it would help with that high end insurance bill

[Barge Ass]

Super/turbocharging is more efficient then creating an N/A pig. And SC's have a distinct whine so another easy police target. Both are not exactly stealth when you pop the hood either.

[lukeaye]

mmmmmmmmm i really want to race a mazda 3 MPS id beat a mazda 6 MPS

[Zilli]

if u cant drive your car right you will beat a 3 MPS.... heavy pigs they are... the number dont show much difference in acceleration... i can vouch for the flywheel and clutch combo and the way it brings the car to life... good investment

[lukeaye]

have u actually raced one?....personally i think they have to much power for a FWD car given there equipment

[Zilli]

no i haven't, but the numbers say roughly on average of the same time for the 100 km/h sprint, and the average person to drive the MPS i don't really think would know how to get the right launch, so im just deducing that in the typical line up i'd end up on top