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Headers to fit VK EFI manifold in LC

Started by _whiteLC_ , May 29 2006 06:50 PM

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23 replies to this topic

#1 _whiteLC_

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Posted 29 May 2006 - 06:50 PM

Finally kicked my project to life last week. VK EFI setup in my LC. (Thanks for your website Sammy), heaps of good info there. Fired up first go.
I'm using some modified 9 port, red motor extractors at the moment that I just doggied up to get it going.
I'm after a decent set now. Does anyone know if there is a particular brand to suit 12 port head with VK EFI inlet manifold, that will fit straight in, or at worst need only a little modification?

I remember reading in the old forum that possible the headers that Castle Auto Electrics & Exhaust Services in Vic will fit without any mods.
Does anyone know if this is true. I rang them today, but they were not sure if it will clear the EFI manifold.

Cheers Cham

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#2 _chevy_253_torana_

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Posted 29 May 2006 - 10:18 PM

hey mate im whacking a blue 6 in my torrie soon and gonna have vk efi as well what do they go like??? any better?? thanks chevy

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#3 _whiteLC_

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Posted 29 May 2006 - 11:10 PM

Haven't had it going for long and only done a few k's at this stage, but yeah I'm REAL happy with it so far.
Starts up easy, no idling probs
Runs smooth, other than moderate cam i'm using
Very happy with the power it seems to have, haven't done hardly any tuning yet. I think once I have a decent set of headers, run it a little longer and get it dyno'd, it'll be sweet!

Cheers

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#4 _JBird_

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Posted 29 May 2006 - 11:57 PM

people say it sh*ts all over carby - sounds different but goes a lot better + better economy i think to the tune of 25mpg or 12L/100km.

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#5 _Sammy_

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Posted 30 May 2006 - 01:13 PM

good to see your conversion has been a success whitelc ....

as far as the extractors go, i reckon its going to be a bit of a hit and miss deal, people will probably be able to tell you if they fit the efi manifold but not in an LC/LJ ......

i'd look at getting your current extractors sorted out by an exhaust place, might be cheaper than getting a whole new set of pipes.

as far as performance and drivability goes with the EFI, theres no comparison to the 350 holley i had previous. ....

economy in my car has been pretty good, my torana gets from 10-15L/100km depending on city/highway and also depends if im driving it or not :rockon:

but my car has a celica 5 speed, 3.08:1 diff ratio and 225/60/13 tyres so these factors may contribute to better economy too ... either way it was a good 1-2L/100km's saved from EFI.

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#6 J-Rod

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Posted 30 May 2006 - 02:16 PM

i think there is a set of off the shelf pacemaker pipes that do suit 12port in lc/lj.

i'd recommend getting your exhaust shop to order them in on the proviso that they can be returned to pacemaker if they foul on the EFI manifold. (thats what i did)

I'd steer clear of the castle autos pipes.. PM me if you want to see why!

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#7 gtrboyy

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Posted 30 May 2006 - 05:35 PM

In the ZOOM mag where they did that efi conversion on a orange lc gtr they used Pacemakers.Apparently they fit.

Edited by gtrboyy, 30 May 2006 - 05:40 PM.

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#8 _whiteLC_

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Posted 30 May 2006 - 06:17 PM

Thanks Sammy, the EFI conversion idea all started because of your site. :clap:

So far this is what I have found out from exhaust shops and manufactures:

Pacemakers - won't clear the inlet manifold plus has heat risers that need welding up (if not required).

Genie - won't clear the inlet manifold.

CastleAuto - The bloke I spoke to says he can't see why they wouldn't fit but couldn't guarentee it. J-Rod PM sent.

The exhaust place tried a few other manufactures, and none of them would fit either. :furious:

I'll prob try to mod a set of pacemakers, or see if I can buy a cheap secondhand set to suit 12 port head somewhere.

I'll keep trying...

Cheers

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#9 _LHoon_

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Posted 30 May 2006 - 06:51 PM

I've got the Pacemakers, and they clear the EFI inlet manifold.
The engine is on the stand at the moment - i'll take some pics soon.

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#10 J-Rod

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Posted 30 May 2006 - 06:56 PM

Who told you the pacemakers wont fit?

have a look at the pacemaker site:
http://www.pacemaker...6cyl_lc-uc.html

The 5008's fit with some minor filing of the flanges on the inlet manifold.. none of the runners will foul.

here they are with the EFI inlet:

Posted Image

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#11 _whiteLC_

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Posted 30 May 2006 - 07:00 PM

Some pics would be great LHoon :spoton:

What part number are they? Are they 'PH 5008 - ENGINE SWAP' (from Pacemaker website)

EDIT:- J-Rod thanks for the pic and info. How long ago did you get those headers, I've also heard that Pacemakers used to fit, but then they changed the design slightly (to give more clearence for the starter motor) and now they don't.
It was Pacemaker themselves that told me that they won't fit.
But I guess the proof is in the picture (unless they are the old design?? :cry:

)... Thanks

Cheers...

Edited by whiteLC, 30 May 2006 - 07:11 PM.

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#12 _whiteLC_

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Posted 30 May 2006 - 07:14 PM

Hey J-Rod, did they have the heat risers on them???

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#13 J-Rod

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Posted 30 May 2006 - 07:27 PM

you have PM

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#14 _chevy_253_torana_

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Posted 30 May 2006 - 07:42 PM

i have a set of vk efi tri ys which im thinking offputting on mine but first il run it on a carby set up can i run these exhausts on a carby ???

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#15 _LHoon_

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Posted 30 May 2006 - 08:45 PM

Some pics would be great LHoon
What part number are they? Are they 'PH 5008 - ENGINE SWAP' (from Pacemaker website)

Yep, i have those PH 5008 extractors. I guess there's no need for me to go out in the garage and take a photo - thanks to J-Rod.

I used the standard VK extractors for a while too - they just required a minor modification near the bottom.

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#16 _whiteLC_

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Posted 30 May 2006 - 09:04 PM

chevy_253_torana: Not sure if the carby inlet manifold will fit with the VK EFI headers, but I would think they would. They don't fit into an LC frame though (if thats the model you have). Although as LHoon says, you will have a minor mod near the bottom.

LHoon: Thanks mate, yeah don't go out in the cold, think I'll go with the 5008's.

J-Rod: You have a PM. Thanks heaps for the info and pics.

Still one last question, just to confirm things, how long ago did you guys (LHoon & J-Rod) get you 5008 headers. Just in case they HAVE changed the design lately.

Thanks heaps guys...

THIS IS SUCH A GREAT SITE....

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#17 _LHoon_

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Posted 30 May 2006 - 10:02 PM

I got mine last year sometime... probably about a year ago.

I heard that they wouldn't fit as well, but I bought them anyway. I was just going to modify whatever hit. But when i tried them, there was no problem at all. I didn't even need to file back the manifold!

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#18 _chevy_253_torana_

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Posted 30 May 2006 - 10:03 PM

o ok thanks very much white lc and lhoon il let you both know how i got along with it il be getting back to it at school holdiays which is in a few weeks time im also gonna install some straight cut timing gears fora bit of whine also down the track a sc14 supercharger

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#19 _glenn385_

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Posted 31 May 2006 - 02:09 PM

I had the pacemakers on my 202 and fitted fine but recently upgraded to a custom made set that seem to work better, i also used the standard plenum for a while but now have made a twin throttle body set up, all run by a motec ecu. This set up made 295 hp on pulp.

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#20 _whiteLC_

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Posted 31 May 2006 - 06:31 PM

5008's ordered. I'll install them this weekend...fingers crossed.

Thanks guys, Ill let you know how I go.

glenn385: Excellent HP...nice :spoton:

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#21 _Sammy_

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Posted 01 June 2006 - 12:55 PM

I had the pacemakers on my 202 and fitted fine but recently upgraded to a custom made set that seem to work better, i also used the standard plenum for a while but now have made a twin throttle body set up, all run by a motec ecu. This set up made 295 hp on pulp.

is this at the flywheel or wheels ? eitherway its a fair bit of power for a 202 ....

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#22 _whiteLC_

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Posted 01 June 2006 - 11:23 PM

UPDATE on Pacemaker 5008's and VK EFI manifold clearance...
Got brand new set of 5008 headers, and it fouls the inlet manifold on the nr 6 exhaust pipe (maybe this is due to the rumoured NEW design???).

I've left an old 12 port head, VK EFI manifold and the new headers with the exhaust shop to mod the nr 6 pipe for me. It hits it by about 1/2 an inch or so.
....BUGGER

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#23 _Sammy_

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Posted 02 June 2006 - 12:46 PM

something like this then ?

Posted Image

i've had the same problem as you can see from this pic, also i've had other brands of extractors that are fine on #6 but hit on #1 .... genie red extractors which i modified to suit my 12 port head had the same issue, it wasn't so bad, we were able to tap a small bit of the pipe down for it to clear (like 5mm)