Javascript Disabled Detected

You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

Off the Shelf Extractors for LH/LX EFI Head Applications

Started by MRLXSS , Aug 27 2010 02:54 PM

Please log in to reply

13 replies to this topic

#1 MRLXSS

The Render Garage

Members
12,396 posts

Name:Matt
Location:Upwey, Melbourne
Car:355 LX Hatchback, DeLorean DMC-12, LX SS Hatch, VY Cross8 Crewman
Joined: 09-November 05

Posted 27 August 2010 - 02:54 PM

Hey Guys,

I'm just about to splash out and buy some extractors for my new motor.

I've managed to find two sets of off the shelf items that both seem ok.

Pacemakers - http://cgi.ebay.com....e=STRK:MEWAX:IT

Tri-y design
Mandrel Bent
1-5/8th Primaries

Castle Headers - http://cgi.ebay.com....em=220571082544

Tri-y design
Mandrel bent - Will flow around 500HP.
1.6mm exhaust grade tubing & 10mm laser cut header plates.
1-3/4" primary,
1-7/8" secondary & 2-1/4" slip fit.
Headers come with extractor bolts & gaskets.

I was initially leading towards the Pacemakers (Mainly for the brand name)... But looking at the specs, the Castle ones seem better (And are a touch cheaper)

How about fitment? Who has used either and how well do they fit?

These headers need to fit and perform well with my next motor plans (400hp+ 355) as well as the 308 thats about to go in. Hence why i'm thinking the bigger primaries are better??

Back to top

#2 _LJ355_

Guests

Posted 27 August 2010 - 06:16 PM

I cant comment on fitment but the larger primaries would be a better option imo

Back to top

#3 _LH SLR 3300_

Guests

Posted 27 August 2010 - 06:32 PM

I have used Castle EFI headers in my Orchid LH Torana & i used Pacemaker EFI headers in my Silver LH SL/R. I posted my experience of the fitment/quality details in your build thread.
Posted Image

Back to top

#4 lx308

Lotsa Posts!

Members
2,838 posts

Name:Tony
Location:Australind
Car:2005 CV8 Monaro
Joined: 25-March 07

Posted 27 August 2010 - 07:10 PM

Matt,
I used the Pacemaker extractors & they didn't fit with HQ mounts. The left 1 hit the K frame & the right side fouled on the steering rack shaft protection on the crossmember. No bolts or gaskets included either.

Back to top

#5 MRLXSS

The Render Garage

Members
12,396 posts

Name:Matt
Location:Upwey, Melbourne
Car:355 LX Hatchback, DeLorean DMC-12, LX SS Hatch, VY Cross8 Crewman
Joined: 09-November 05

Posted 27 August 2010 - 10:17 PM

Thanks Guys,

It sounds like both of them throw up their own sets of problems... LH SLR both your engine bays look TRICK!

I'm not sure what my engine mounts actually are... Any way i can easily tell?

Still unsure which way to go... lol

Back to top

#6 TerrA LX

Fulcrum Fixture

Members
14,241 posts

Location:Sid 'n' knee
Joined: 31-May 06

Posted 28 August 2010 - 12:00 AM

Thanks Guys,

I'm not sure what my engine mounts actually are... Any way i can easily tell?

Torana are shaped like a box (rectangle) and HQ are like an S shape or a question mark.

Edited by TerrA LX, 28 August 2010 - 12:02 AM.

Back to top

#7 _ova budget_

Guests

Posted 28 August 2010 - 10:37 AM

I fitted the Pacemaker extractors which were no hassle (relatively). I'm using the standard torana engine mounts.

Back to top

#8 Evan

Forum Fixture

Members
1,287 posts

Location:Perth Western Australia
Joined: 14-January 06

View Garage

Posted 28 August 2010 - 11:01 AM

Just make sure you have a few hungies spare (to get slight mods done) in your budjet no matter what brand you buy.

Ev

Back to top

#9 orangeLJ

Yes, yes I do post alot!

Members
10,259 posts

Joined: 02-May 06

Posted 28 August 2010 - 02:42 PM

I think you can get 1 3/4 primaries in paceys too, I still havent rung about them! whoops!

Back to top

#10 _LH SLR 3300_

Guests

Posted 28 August 2010 - 05:37 PM

Thanks Guys,

It sounds like both of them throw up their own sets of problems... LH SLR both your engine bays look TRICK!

I'm not sure what my engine mounts actually are... Any way i can easily tell?

Still unsure which way to go... lol

I don't remember if i posted this in your build thread, but my 355 EFI SL/R with the Pacemaker 1 5/8" tri-y appears to be more on par with what you're doing with your car than my Orchid car which is just a mild cruiser. I haven't dynoed my SL/R with these headers but at the forum drag day last month, which i remember you attended, it ran an easy 11.9@113mph with a 3.5 geared LSD centre that was playing up. These fitted better than the Castle headers, i use HQ engine mounts on both cars & the only clearence problems i had with the Pacemakers was around the steering coupling & the RH engine mount on the k-frame.

Back to top

#11 MRLXSS

The Render Garage

Members
12,396 posts

Name:Matt
Location:Upwey, Melbourne
Car:355 LX Hatchback, DeLorean DMC-12, LX SS Hatch, VY Cross8 Crewman
Joined: 09-November 05

Posted 28 August 2010 - 05:53 PM

Thats interesting to hear mate... Fitment is the main thing i'm looking at...

Chris, I spoke with the mob that sell the pacey's down here, and they said they don't do a 1 3/4" primary... Even though they advertise one???

Back to top

#12 Struggler

Forum Fixture

Members
2,426 posts

Name:Andrew or AJ
Location:Canberra A.C.T.
Car:UC Sedan
Joined: 08-November 05

Posted 28 August 2010 - 08:07 PM

JMO but you need a serious 355 to make advantage of the 1 3/4" pipes. The 1 5/8" pipes will make more torque and be faster unless you use a 4500 or larger converter. Pacemake make a great set of pipes and the "cone over" construction is a real plus.

Again, JMHO

Back to top

#13 _LH SLR 3300_

Guests

Posted 28 August 2010 - 11:03 PM

^^^^I agree, on the engine dyno my 355 made around 440bhp@6000rpm. We tried a few different sets of headers, finally deciding on the Pacemaker 1 5/8" primary tri-y for the reasons struggler mentioned. My engine has a wide lobe cam as it was initially built for a shot of N2O, so N/A it lacks torque, i think it was around 380-390lbs@4500rpm. Too larger exhaust would've sacrificed even more torque. As for ease of fitment, the Castle headers are good value for money but i had more problems with fitment/clearance than with the Pacemakers, they had to be heated & bent to clear the chassis rail & floorpan but then they fitted better around the steering. I also had to slightly modify the RH engine mount on the k-frame as with the Pacemakers. Also they are designed to clear a factory LH/LX front swaybar, whereas the Pacemakers don't. These are just my experiences, in any case, good luck with your new engine swap. Cheers Matt

Back to top

#14 MRLXSS

The Render Garage

Members
12,396 posts

Name:Matt
Location:Upwey, Melbourne
Car:355 LX Hatchback, DeLorean DMC-12, LX SS Hatch, VY Cross8 Crewman
Joined: 09-November 05

Posted 02 September 2010 - 02:21 PM

Thanks Matt and Andrew,

Thats interesting about the Swaybar with the pacey's... On their website they say they fit the A9X/L34 Swaybar... I just assumed that is a beefed up version on a standard bar?

I think you have swayed me to the Pacemakers though, that's a very good point about losing torque.