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HM Headers HM9C

Started by _CraigA_ , Sep 21 2009 08:51 PM

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129 replies to this topic

#26 orangeLJ

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Posted 04 November 2009 - 07:54 AM

How fancy are you looking for hose/fitting wise?

Earls are relatively cheap for fittings and hose (braid and rubber)

or places like Rocket industries etc.

if you just want rubber and hoseclamps, RYCO do a range of them too (brass fittings etc)

As for the catchcan, Id be interested in one too actually (had the same idea as you to mount it where the washer bottle was.

So if you find someone to knock up a polished alloy one, let me know.

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#27 _CraigA_

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Posted 04 November 2009 - 08:42 AM

Something like the Earl's ones is what I'm after.

I was thinking of two 12AN males at the rocker cover, connected to two 90 Deg swivels then hoses and then the same swivels at the catch can.

VPW has them listed so might buy via the web.

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#28 orangeLJ

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Posted 04 November 2009 - 08:55 AM

Thats pretty similar to what I had in mind.

I need to sort out drilling and plumbing a second breather hole into my sheet metal rocker cover though.

obviously not running a pcv valve? (mines been a "shell" of a PCV for yonks)

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#29 _CraigA_

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Posted 04 November 2009 - 09:13 AM

The engine builder has recommend that I change to a KC style rocker cover (tall aluminium type) with twin breathers to a catch can.

He has told me that breather hoses must be 3/4" ID. No P.C.V valve will be used and I'll be fitting a non vented cap.

I've bought a new polished rocker cover and need to make up some baffle plates and get this plumbing/catch can issue sorted soon.

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#30 _jklumpp_

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Posted 04 November 2009 - 01:38 PM

More for Black??... wow, that's more than I paid for the Extractors themselves!

Catsh tanks - I've used off the shelf ones in mine, and just plumbed up with rubber fuel line & hose clamps.... but I guess you're going for a more 'show' look?
Where are you getting the breather vaccum from?

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#31 _CraigA_

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Posted 04 November 2009 - 03:05 PM

The black coating is apparently more effective and there are more steps to apply it hence a slightly higher price.

but I guess you're going for a more 'show' look?

The show/shiny look doesn't worry me, just the do it once do it right approach.

I'm not using a vacuum connection for the catch tank, just venting using the larger diameter connectors/hoses.

Edited by CraigA, 04 November 2009 - 03:19 PM.

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#32 _coupe202_

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Posted 04 November 2009 - 05:42 PM

Just a photo for you guys thinking of doing bearthers coming off the rocker cover to catcher can with two K&N filters.

sorry my first attempt to add a photo didnt work.

Attached Files

calder_04_10_109b.jpg 121.97K 79 downloads

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#33 _CraigA_

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Posted 04 November 2009 - 10:10 PM

Thanks for the picture. That's exactly what I need.

Where did you get your catch can from?

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#34 orangeLJ

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Posted 05 November 2009 - 08:32 AM

The black ceramic coating has a higher temperature rating then the "crhome" finish.

They use it on turbo housings, dump pipes etc anywhere that sees a shit load of heat (the chrome finish dulls and can eb compromised under excess heat)

I had troubles with my chrome tappet cover, the rockers smashed the front right and rear right hadn corners (clearanced it for themselves!)

But this one clears nicely-

Posted Image

Edited by orangeLJ, 05 November 2009 - 08:40 AM.

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#35 _coupe202_

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Posted 05 November 2009 - 07:19 PM

The guys who made the catcher can are called Vanell there in Melbourne phone no 0397945255.
If you are going to get one made get them to put a fitting for the rad over flow and drain plugs.
Can't remember the cost.

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#36 _CraigA_

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Posted 05 November 2009 - 07:31 PM

Great info - thanks. :clap:

Found them on the web here

www.iprraceproducts.com

Will shoot of an email to them now.

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#37 Stedz_lc

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Posted 05 November 2009 - 07:38 PM

Sorry thread steal, Coupe202 what the blue line closest to front of car ? Where is it coming from fuel pump cover?? Is that all one catch can or have a divider inside?
Do u still have this car if its the one im thinkin of (melbourne based) not been seen for along time, ive seen u a few times in the skyline
Cheers.
ed.

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#38 _CraigA_

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Posted 17 November 2009 - 07:47 PM

Oil Pan has arrived from ASR. Engine builder was very complimentary of both design and quality.

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Head is ready for installation of valve components.

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Block honed and being modded to accept red head

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Headers have been match ported and dropped them off today to get flange welded on. Then off for coating.

Intake manifolds have had a lot of work done to match ports and to make fitting easier. All mounting is now very easy using studs and nuts.

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#39 _CraigA_

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Posted 19 November 2009 - 01:26 PM

Back at the engine builders again today

Crankshaft lightened, knife edged, and balanced.

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Clutch & flywheel assembly balanced.

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Intake manifolds completed.

Posted Image

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#40 GTR600

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Posted 19 November 2009 - 06:15 PM

The crank looks the go,

what was the charge for machine work on the crank if you dont mine me asking.

Did you say you were raising the comp on the head,or leaving as is .

Very nice keep the updates coming.

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#41 _CraigA_

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Posted 19 November 2009 - 08:39 PM

Not exactly sure of the cost to do the crank as the quote covered all parts and machining.

Compression is being set by the engine builder and will be adjusted using piston dish so its 10.3:1.

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#42 orangeLJ

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Posted 20 November 2009 - 08:23 AM

I think im going to have to switch to a counterweighted crank next time I rebuild my 202.

Head looks good.

10.3:1 compression, you will have to watch out for shit batches of fuel(I doubt this will get anything less then 98 anyway!)

Have you got the carbies back yet?

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#43 _CraigA_

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Posted 20 November 2009 - 08:33 AM

98 octance or better is the only fuel I will use. The last engine was about the same comp ratio and had detonation marks in the bore from crap fuel. Will be be much more careful this time.

Haven't sent the carbies off yet. Had to go overseas for work so haven't had time.

The crank is really nice. 4kgs removed from standard weight of 28kg's.

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#44 _LCG77R_

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Posted 21 November 2009 - 02:06 PM

Wow this engine is looking very sweet so far.. go the 6's!

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#45 GTR600

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Posted 22 November 2009 - 06:44 PM

Just wondering were you got your fuel pressure regulator,

Looked for a malpassi but they only suited fuel injection i couldnt find any info on a carby type suiting low psi 3-4

did yours come with pressure guage or did u buy one seperate.

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#46 _CraigA_

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Posted 23 November 2009 - 06:23 AM

Mine came with the carbies and doesn't have a part number on it.

Marked as 'Malpassi Rising Rate Fuel Regulator'

Rocket Industries list the whole range including one for carburettor applications.

Malpassi Regs

Edited by CraigA, 23 November 2009 - 06:28 AM.

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#47 _CraigA_

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Posted 23 November 2009 - 09:00 PM

Cam selection made. Final CR will be 10.5:1.

Posted Image

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#48 _oldjohnno_

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Posted 24 November 2009 - 06:20 AM

This is looking really sweet Craig, I bet you can't wait to get it on the road. I'm predicting mid 12s with good tyres and gears :spoton:

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#49 orangeLJ

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Posted 24 November 2009 - 07:27 AM

Thats a similar range to the cam in my 202

Although with your head (mine needs more work) and alot prettier crank, yours should go a fair bit harder! :spoton:

You're also running 45mm webers arent you? (stupid me, brain fart, just went back and read it)

What are you running behind this? you were running an aussie 4 speed before wernt you?

Are you investing in a yella terra flywheel? Id definitely reccomend it, bought one 2 or 3 years ago and havent looked back. (again, stupid me, looks from the picture like a lightened std flywheel.)

Still running the banjo too? what ratio?

Edited by orangeLJ, 24 November 2009 - 07:33 AM.

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#50 _CraigA_

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Posted 24 November 2009 - 07:57 AM

I'm predicting mid 12s with good tyres and gears

Hope so OldJohnno. What I'm predicting is hours of fun down the local industrial estate!!!

Chris, its just an M20 which may struggle behind this engine. If I have dramas then I'll move to an M21 with the circlip mod.

I already had a standard weight yella terra explosion proof flywheel but on the engine builders recommendation I've bought a lightweight version of the same thing. YT9044L is the part number.

I'm using a 3.55 Banjo LSD thats recently been reconditioned and have a 3.08 LSD as well. There's a 3.55 CIG locker in the shed but last time I used it I popped an axle in the first 5 minutes.

Its going to be interesting to see what breaks first Posted Image