Top end head work DC2R

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24-03-2013, 05:06 PM
3RotaRX

Top end head work DC2R

Hey Ozhonda,

I'm wanting to put aftermarket cams for my Aus spec DC2R and wondering what people recommend?

Currently what I have in mind is Toda Spec B with Toda cam gears and toda valve springs.

I already have
Fujitsubo RM01A 2.5" exhaust
JDM 4-1 header
Comptech Icebox
hondata S300 in a P28 ECU which hasn't been tuned yet. Car will only see the drags/track once in a while
Toda Lightened Flywheel
Exedy Sports Organic Clutch.

My main question is what alternatives are there for what I can go with?

Budget is around what I would be paying for the Toda stuff.

Thanks!
25-03-2013, 12:18 AM
dougie_504

Got a high-flow catback?

I've used Skunk2 gear for my B16A head build. Their B-series stuff is very good quality/value.

TODA really is top of the line IMO. If you wanna splash out then go for it. Keep the valves standard, but maybe consider some titanium retainers to go with the springs. The Type R springs are quite good anyway.
25-03-2013, 01:54 PM
stndrd

Are you full licensed? If so then i would recommend a nice GT3076R to cure the power needs.

But if you plan on staying N/A, Jun, Spoon & Toda offer some great camshafts for the B series. Depening on how big of a camshaft you go, you may need to upgrade throttle body diameter and look into port work on the cylinder head.

If you are in Melbourne, feel free to give me a call to discuss further
25-03-2013, 04:52 PM
fatboyz39

Aftermarket cams in a B18c7 stock doesn't seem like a bang for buck mod. Change out those JDM headers to Toda or alike headers, high-flow cat mated with your RM10A.

After that get it tuned and see what results it manage, a Internally stock b18c7 with I/H/E ECU tuned should manage mid-high 13's (driver dependent). That's a quick street car :)
25-03-2013, 05:49 PM
3RotaRX

Quote:

Originally Posted by dougie_504

Got a high-flow catback?

I've used Skunk2 gear for my B16A head build. Their B-series stuff is very good quality/value.

TODA really is top of the line IMO. If you wanna splash out then go for it. Keep the valves standard, but maybe consider some titanium retainers to go with the springs. The Type R springs are quite good anyway.

I'm assuming that you mean Hi flow cat? Nope but I was thinking of a SARD cat and I know its expensive but i'm more a person who wants the high quality stuff...

Thanks for the recommendations will take a look into it.
25-03-2013, 05:51 PM
3RotaRX

Quote:

Originally Posted by stndrd

Are you full licensed? If so then i would recommend a nice GT3076R to cure the power needs.

But if you plan on staying N/A, Jun, Spoon & Toda offer some great camshafts for the B series. Depening on how big of a camshaft you go, you may need to upgrade throttle body diameter and look into port work on the cylinder head.

If you are in Melbourne, feel free to give me a call to discuss further

Not going to be full licensed for a while.. I like the idea of turbo but i love N/A.

Do you think the Spec B cams need the port work?

Also I heard the 68mm Throttle bodies are ideal size for the B18C7? Heard anything more than 70mm is non-beneficial for what I'm going for?

Thanks man, but im from Sydney!
25-03-2013, 05:57 PM
3RotaRX

Quote:

Originally Posted by fatboyz39

Aftermarket cams in a B18c7 stock doesn't seem like a bang for buck mod. Change out those JDM headers to Toda or alike headers, high-flow cat mated with your RM10A.

After that get it tuned and see what results it manage, a Internally stock b18c7 with I/H/E ECU tuned should manage mid-high 13's (driver dependent). That's a quick street car :)

Yeah.. but the JDM header makes a few HP less than what a Mugen or Toda would make and for me i cant justify upgrading to aftermarket header..

But yeah thinking of a hi flow cat like you and dougie have recommended sounds a like a good idea. Will also look into it.

cheers!
25-03-2013, 06:39 PM
mocchi

Quote:

Originally Posted by 3RotaRX

Yeah.. but the JDM header makes a few HP less than what a Mugen or Toda would make

http://weknowmemes.com/wp-content/up...bad-memes.jpeg

im confused
25-03-2013, 07:07 PM
3RotaRX

Quote:

Originally Posted by mocchi

http://weknowmemes.com/wp-content/up...bad-memes.jpeg

im confused

Need me clarify?

JDM 4-1 Header off a Jap spec dc2r.

JDM ITR HEADER 185hp 137TQ
http://www.ek9.org/forum/attachments...ck_jdm_itr.gif

Toda Header 190hp 137TQ
http://www.ek9.org/forum/attachments...stock_toda.gif
25-03-2013, 07:18 PM
stndrd

This is the difference on a stock header.

Once you start opening up the motor this difference will become more and more apparent and will not complement your head work
25-03-2013, 08:19 PM
3RotaRX

Thanks all! got all my questions answered.
25-03-2013, 10:10 PM
dougie_504

Yeah I meant high-flow cat sorry, night duty brain.

Just gonna say this once man. I've done the N/A sh!t. Head build and blah blah blah. Cam shafts, cam gears, valve springs, retainers, valves, combustion chamber re-welds, port work, matching manifolds, enlarged TB/IM.

It sounds great, goes well, and 9,000 RPM is fun.

But I wish I didn't waste my time and money (big $$$$) getting that extra 15-20kw.

Could have done a reasonable turbo setup for the same price and yielded triple the power gains at least.

If I had my time again, I wouldn't waste big money on camshafts and all that. Would go turbo or B20 block. Or just K-series.
25-03-2013, 10:32 PM
INT DIST/TODA

Quote:

Originally Posted by 3RotaRX

Not going to be full licensed for a while.. I like the idea of turbo but i love N/A.

Do you think the Spec B cams need the port work?

Also I heard the 68mm Throttle bodies are ideal size for the B18C7? Heard anything more than 70mm is non-beneficial for what I'm going for?

Thanks man, but im from Sydney!

Spec B's are the way to go for a bottom end untouched B18C7, if you were looking to raise the comp, then C's start being more the cam of choice. Every B series benefits from todays technology in head work, we will soon be offering some servicing options, from decent head services with full cnc valve seating, to adding deshrouded and cc'd chambers, then into cnc inlet and exhaust porting. The head will be coming off, so its something to consider when doing the work along with a thinner head gasket.

68mm is the biggest you would want to go on the t/b also, but a well tuned stock set-up will run into fueling issues, so a better pump and FPR should also be on the shopping list, the stock injectors at a higher pressure will be fine.

As has been suggested, a better header and cat combo would also be the go at this stage.

Biggest part of any cam change, is the install, cam timing and tuning of the car afterwards, best parts with bad install will not net the results you want and what others may have had out of the exact same combo.

Fell free to PM me for any pricing or questions you may have. ; )
25-03-2013, 10:39 PM
stndrd

Just the man i was waiting to hear from. Expect a call or PM as I have referred him onto you
26-03-2013, 11:59 AM
fatboyz39

As i said in my previous post i would address the intake/headers before installing any sort of aftermarket cams.
26-03-2013, 11:48 PM
INT DIST/TODA

Quote:

Originally Posted by stndrd

Just the man i was waiting to hear from. Expect a call or PM as I have referred him onto you

Hi Josh,

Thanks for that buddy, he has contacted me.

Yep as Jimmy has said, a decent intake, header and exhaust are always benefical and first on the list, but you seem to be addressing and looking at cams, so feel free to ask more questions reagarding it if you need to.

Cheers.