EA81 Unequal Length Headers

User avatar
Willy Fisterbottom
Junior Member
Posts: 330
Joined: Wed Feb 26, 2014 9:37 am
Location: NSW

Post by Willy Fisterbottom » Wed Jun 25, 2014 6:50 pm

steptoe wrote:just dawned on me, your unequal length pipes are a bit along the lines of interference V's tuned length extractors, with the unequal being more like interference type. Once replaced interference with tuned length on an inline six and lost torque, torque returned with interference type extractors again :)
I'll have to google that LOL. My dad used to have an unequal set on a 6 banger XB Falcon and everyone thought it was a V8 from the sound.

User avatar
555Ron
Junior Member
Posts: 189
Joined: Tue Jul 14, 2009 6:54 pm
Location: Newcastle, NSW

Post by 555Ron » Tue Feb 17, 2015 7:27 am

Willy, I stole your idea.

Image

1 3/4" headers. Stainless Steel 3 90° bends and one 45° bend.

Image

And 2" cat back. 2 60° bends and 2 90° bends to complete the exhaust.
- Rhys
91 Brumby

User avatar
Willy Fisterbottom
Junior Member
Posts: 330
Joined: Wed Feb 26, 2014 9:37 am
Location: NSW

Post by Willy Fisterbottom » Tue Feb 17, 2015 12:41 pm

555Ron wrote:Willy, I stole your idea.

Image

1 3/4" headers. Stainless Steel 3 90° bends and one 45° bend.

Image

And 2" cat back. 2 60° bends and 2 90° bends to complete the exhaust.
Looking good Mate.

I'll be getting a new set made up shortly for my newest Vortex. Gonna go 2 1/4" and put a Hot dog between the Cat and Muffler, same as on my 88 Royale sounds much deaper.

Where is the sound clip?

User avatar
Silverbullet
Senior Member
Posts: 2858
Joined: Mon Aug 23, 2010 6:20 pm
Location: Adelaide

Post by Silverbullet » Tue Feb 17, 2015 4:54 pm

I have a question! Only dawned on me this week; how much harder is it to change the oil filter now with the long pipe running around the front of the engine? :rolleyes:
Will it ever end!?
-EA81 TWIN CARB!!!!
-L series 5 speed
-Custom paint job
-2" lift
-Full custom re-wire
-L series front end
Image

User avatar
Bantum
General Member
Posts: 1923
Joined: Sun Jul 29, 2012 4:30 pm
Location: Northern Territory + QLD
Contact:

Post by Bantum » Tue Feb 17, 2015 9:49 pm

You should still be able to get to it :

Image

It might be a bit tight to get any tools in there though ... :(


P.S. - Like your work Ron, I will definitely have to get me one of these now ... :rolleyes:

Cheers, Bantum ...

User avatar
Silverbullet
Senior Member
Posts: 2858
Joined: Mon Aug 23, 2010 6:20 pm
Location: Adelaide

Post by Silverbullet » Wed Feb 18, 2015 4:46 pm

Yeah...would need a long pipe to use as a socket to twist the filter off? Or just ram a screwdriver through it :rolleyes:
Will it ever end!?
-EA81 TWIN CARB!!!!
-L series 5 speed
-Custom paint job
-2" lift
-Full custom re-wire
-L series front end
Image

User avatar
Willy Fisterbottom
Junior Member
Posts: 330
Joined: Wed Feb 26, 2014 9:37 am
Location: NSW

Post by Willy Fisterbottom » Thu Feb 19, 2015 6:31 am

Silverbullet wrote:I have a question! Only dawned on me this week; how much harder is it to change the oil filter now with the long pipe running around the front of the engine? :rolleyes:
I've never had any dramas changing the filter, you may dribble a bit of oil on the headers when the filter is off but thats the only drama lol.

User avatar
Bantum
General Member
Posts: 1923
Joined: Sun Jul 29, 2012 4:30 pm
Location: Northern Territory + QLD
Contact:

Post by Bantum » Thu Feb 19, 2015 10:37 am

One thing I have noticed - You'll need to make sure the end mounting plate is orientated correctly so you can get a socket set with extender on it without obstruction ... ;)

Ciao, Bantum ...

User avatar
Willy Fisterbottom
Junior Member
Posts: 330
Joined: Wed Feb 26, 2014 9:37 am
Location: NSW

Post by Willy Fisterbottom » Thu Feb 19, 2015 12:25 pm

:p
Bantum wrote:One thing I have noticed - You'll need to make sure the end mounting plate is orientated correctly so you can get a socket set with extender on it without obstruction ... ;)

Ciao, Bantum ...
That's what Uni joints or ring spanners are for :p

User avatar
Bantum
General Member
Posts: 1923
Joined: Sun Jul 29, 2012 4:30 pm
Location: Northern Territory + QLD
Contact:

Post by Bantum » Fri Feb 20, 2015 2:28 am

Yeah they are handy - I've got one of them in my set ... :)

However no manner of contorting will get a socket/spanner into that space on the inner drivers side if you got the plate mounted on wrong ... ;)

Cheers, Bantum ...

User avatar
Willy Fisterbottom
Junior Member
Posts: 330
Joined: Wed Feb 26, 2014 9:37 am
Location: NSW

Post by Willy Fisterbottom » Fri Feb 20, 2015 7:28 am

Bantum wrote:Yeah they are handy - I've got one of them in my set ... :)

However no manner of contorting will get a socket/spanner into that space on the inner drivers side if you got the plate mounted on wrong ... ;)

Cheers, Bantum ...
Are we both talking about the the flanges that mate to the head?

User avatar
Bantum
General Member
Posts: 1923
Joined: Sun Jul 29, 2012 4:30 pm
Location: Northern Territory + QLD
Contact:

Tight fit ...

Post by Bantum » Fri Feb 20, 2015 2:17 pm

Yep - You could use a 'finger' ratchet I suppose, will be even harder to get any sort of torque wrench on it but ... :evil:

Something like one of these :

Image

Cheers, Bantum ...

User avatar
Willy Fisterbottom
Junior Member
Posts: 330
Joined: Wed Feb 26, 2014 9:37 am
Location: NSW

Post by Willy Fisterbottom » Sat Feb 21, 2015 1:22 pm

Bantum wrote:Yep - You could use a 'finger' ratchet I suppose, will be even harder to get any sort of torque wrench on it but ... :evil:

Something like one of these :

Image

Cheers, Bantum ...
Fair enough, I've never had a problem with these nuts.

User avatar
steptoe
Master Member
Posts: 11582
Joined: Thu Oct 06, 2005 10:00 am
Location: 14 miles outside Gotham City

Post by steptoe » Sun Feb 22, 2015 3:16 am

'finger tight torque setting would be a little less than wrist tight :) who needs a torque wrench! Mate, need little tools there , where do you get them ?

User avatar
Bantum
General Member
Posts: 1923
Joined: Sun Jul 29, 2012 4:30 pm
Location: Northern Territory + QLD
Contact:

Tools ...

Post by Bantum » Sun Feb 22, 2015 10:57 pm

steptoe wrote: ... Where do you get them ? ...
Can be found at all good automotive / hardware stores such as Super Cheap, Repco etc ...

Snap on tools also do some ... ;)

Cheers, Bantum ...

User avatar
El_Freddo
Master Member
Posts: 12486
Joined: Tue Oct 04, 2005 10:00 am
Location: Bridgewater Vic
Contact:

Post by El_Freddo » Wed Mar 04, 2015 9:33 pm

Nice piece of kit Bantum!

Might have to add them to the birthday list!

Cheers

Bennie
"The lounge room is not a workshop..."
Image
El Freddo's Pics - El_Freddo's youtube

User avatar
El_Freddo
Master Member
Posts: 12486
Joined: Tue Oct 04, 2005 10:00 am
Location: Bridgewater Vic
Contact:

Post by El_Freddo » Thu Apr 09, 2015 2:42 am

After hanging out with a bunch of streeter subi's with wicked exhausts my inner subaru nut REALLY REALLY wants a set of these extractors!

I might have to ask a mate if he'll help me out - then find some funds to hide from the minister of fun and finance to pay for it...

Keen to know Willy, with your coupe running this extractor set, what are the specs for the rest of the exhaust - pipe diametre/resonators/rear muffer etc?

Cheers

Bennie
"The lounge room is not a workshop..."
Image
El Freddo's Pics - El_Freddo's youtube

User avatar
Willy Fisterbottom
Junior Member
Posts: 330
Joined: Wed Feb 26, 2014 9:37 am
Location: NSW

Post by Willy Fisterbottom » Thu Apr 09, 2015 9:32 am

Currently running 2" system with a strait through muffler about halfway down and 2" to the end.
I don't really like the muffler I have as it isn't as deep as what I have on tyhe hardtop. I'd prefer to run a 2 1/4" system with a hot dog in the middle and a straight through muffler at the back.

User avatar
El_Freddo
Master Member
Posts: 12486
Joined: Tue Oct 04, 2005 10:00 am
Location: Bridgewater Vic
Contact:

Post by El_Freddo » Fri Apr 10, 2015 4:54 pm

2.25 inch diametre is a bit much for a 1.8ltr isn't it?? I've got 2.25 inch with the ej22 and that's a good setup IMO.

Do you think the note with this same exhaust would be different between a hydro lifter EA81 and a solid lifter EA81?

Also what sort of distance is the pipe from the LHS port to the collector?

Cheers

Bennie
"The lounge room is not a workshop..."
Image
El Freddo's Pics - El_Freddo's youtube

User avatar
Silverbullet
Senior Member
Posts: 2858
Joined: Mon Aug 23, 2010 6:20 pm
Location: Adelaide

Post by Silverbullet » Fri Apr 10, 2015 6:07 pm

El_Freddo wrote:2.25 inch diametre is a bit much for a 1.8ltr isn't it?? I've got 2.25 inch with the ej22 and that's a good setup IMO.

The battered factory Y pipe I have for the EA81S is bigger than 2" where both pipes come together, I think 2 1/4" or even 2.5" !!
Will it ever end!?
-EA81 TWIN CARB!!!!
-L series 5 speed
-Custom paint job
-2" lift
-Full custom re-wire
-L series front end
Image

Post Reply

Return to “Exhausts”