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Old 02 November 2023 | 08:15 PM
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so everyone what’s on your lists ? Either like me sometimes to “ yourself “ or for the other half to get you ?
my sons was to stop daddy spending all his money on that now noisy Subaru thing ! Lol.

mines an aos system either rcm or Perrin to match the other bits !
Old 02 November 2023 | 08:30 PM
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Originally Posted by 4evascoob
so everyone what’s on your lists ? Either like me sometimes to “ yourself “ or for the other half to get you ?
my sons was to stop daddy spending all his money on that now noisy Subaru thing ! Lol.


mines an aos system either rcm or Perrin to match the other bits !
Ive got the Perrin aos and it works pretty good.
Id like a 2.5 or 2.6 closed deck short block built by Alyn but santa won't stretch to that unless I can sell my finch 2.35 that i run currently.
Old 02 November 2023 | 09:07 PM
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I've got a Perrin aos for sale, thought I'd put it on here. Its new and red.
edit...but it's for a hatch

Last edited by hedgecutter; 02 November 2023 at 09:10 PM.
Old 02 November 2023 | 09:44 PM
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The issue with the Perrin is that the crank case breather is both the in and the out. So you are trying to return the oil down the same hole you are trying to vent it from. Not ideal on a big power car.

Better off with the RCM that returns oil to the sump instead, thus leaving the crank case to vent as it should.
Old 02 November 2023 | 10:13 PM
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Originally Posted by Dan.jo
The issue with the Perrin is that the crank case breather is both the in and the out. So you are trying to return the oil down the same hole you are trying to vent it from. Not ideal on a big power car.

Better off with the RCM that returns oil to the sump instead, thus leaving the crank case to vent as it should.
Agreed it's better if you have 2 holed sump, i lived with rcm return to sump with the one hole and found it awkward to remove and replace with the return to sump tube if that makes sense.
Old 02 November 2023 | 10:47 PM
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Originally Posted by lockheed
Ive got the Perrin aos and it works pretty good.
Id like a 2.5 or 2.6 closed deck short block built by Alyn but santa won't stretch to that unless I can sell my finch 2.35 that i run currently.
why ? due to enginetuner magic on it ?
owens twinscroll and link g4x for my freshly build 2.1
Old 02 November 2023 | 11:11 PM
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Originally Posted by JdmSti2006
why ? due to enginetuner magic on it ?
owens twinscroll and link g4x for my freshly build 2.1
Explain abit more please bud! engine tuner ruined my valve train via over revving and admitted to it via valve clash.
Over 8k revs on a wrx head
​​​​​​
Old 03 November 2023 | 08:52 AM
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Originally Posted by lockheed
Explain abit more please bud! engine tuner ruined my valve train via over revving and admitted to it via valve clash.
Over 8k revs on a wrx head
​​​​​​
Yes that's what I mean using word "magic", read Your post before( and few others) but did not know what they did and thats one of the reasons I did not use them for my 2.1 jdm build.
Why 2.5 -2.6 over 2.35? jdm heads could help to.
I was after 2.35 for my jdm heads but chevron said better to go with 2.1 for owens turbo.
Not sure should I ask Santa about rcm aos to

Last edited by JdmSti2006; 03 November 2023 at 08:55 AM.
Old 03 November 2023 | 12:10 PM
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Originally Posted by Dan.jo
The issue with the Perrin is that the crank case breather is both the in and the out. So you are trying to return the oil down the same hole you are trying to vent it from. Not ideal on a big power car.

Better off with the RCM that returns oil to the sump instead, thus leaving the crank case to vent as it should.
dan quick one for you mate. Does your exhaust touch very slightly on your arb ? Mine does tho everything is aligned ??
Old 03 November 2023 | 12:24 PM
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Originally Posted by JdmSti2006
Yes that's what I mean using word "magic", read Your post before( and few others) but did not know what they did and thats one of the reasons I did not use them for my 2.1 jdm build.
Why 2.5 -2.6 over 2.35? jdm heads could help to.
I was after 2.35 for my jdm heads but chevron said better to go with 2.1 for owens turbo.
Not sure should I ask Santa about rcm aos to
Had zero issues with my ET built / ASP sleeved 2.5 running 580 and 610lbft. It has been absolutely faultless.
Old 03 November 2023 | 12:25 PM
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Originally Posted by 4evascoob
dan quick one for you mate. Does your exhaust touch very slightly on your arb ? Mine does tho everything is aligned ??
No issues on mine, I’m running a whiteline ARB and uprated adjustable end links and no clearance issues. Is yours standard ARB setup?
Old 03 November 2023 | 12:52 PM
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Originally Posted by Dan.jo
No issues on mine, I’m running a whiteline ARB and uprated adjustable end links and no clearance issues. Is yours standard ARB setup?
no exactly the same as yours ? All whiteline also with adjustable end links mine actually touches the exhaust??

us there a left and right on arb I wonder ? I may have it wrong way around ??

Last edited by 4evascoob; 03 November 2023 at 12:54 PM.
Old 03 November 2023 | 12:56 PM
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Originally Posted by 4evascoob
no exactly the same as yours ? All whiteline also with adjustable end links mine actually touches the exhaust??

us there a left and right on arb I wonder ? I may have it wrong way around ??
It needs adjusting, the ARB should be perpendicular with the floor when the wheels are on the ground.
Old 03 November 2023 | 01:14 PM
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Originally Posted by Dan.jo
It needs adjusting, the ARB should be perpendicular with the floor when the wheels are on the ground.
it is ? Surely you can only adjust tension ? Once in the brackets it can’t really go anywhere or am I being dull ?
Old 03 November 2023 | 03:13 PM
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Originally Posted by 4evascoob
it is ? Surely you can only adjust tension ? Once in the brackets it can’t really go anywhere or am I being dull ?
The adjustable end links are to adjust the tension of the bar, but it needs to be perpendicular to the floor once the wheels are on the ground for it work as it’s designed to.

Last edited by Dan.jo; 03 November 2023 at 03:14 PM.
Old 03 November 2023 | 03:26 PM
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Originally Posted by Dan.jo
The adjustable end links are to adjust the tension of the bar, but it needs to be perpendicular to the floor once the wheels are on the ground for it work as it’s designed to.
yea but if it’s in the original bracket position I guess it can’t be anything else , or do you
meannit might be slanted but then surely it can’t be ? You must only have a few millimetres of clearance I’m presuming?
Old 03 November 2023 | 03:37 PM
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Originally Posted by 4evascoob
yea but if it’s in the original bracket position I guess it can’t be anything else , or do you
meannit might be slanted but then surely it can’t be ? You must only have a few millimetres of clearance I’m presuming?
On mine, the shape of the bar would mean it would hit the exhaust if slanted like you say. If you still don’t have clearance when it’s perpendicular then look at getting some different exhaust mounts, some have three holes to give you clearance options.
Old 03 November 2023 | 03:45 PM
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Originally Posted by Dan.jo
Had zero issues with my ET built / ASP sleeved 2.5 running 580 and 610lbft. It has been absolutely faultless.
Yes like few others but for me lack of communication ,no engine spec just price for 2.1,asking 4.5k for used 2.2 short block etc pushed me off.
Maybe they are to busy-not for me than.

Last edited by JdmSti2006; 03 November 2023 at 03:47 PM.
Old 03 November 2023 | 03:52 PM
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Originally Posted by Dan.jo
On mine, the shape of the bar would mean it would hit the exhaust if slanted like you say. If you still don’t have clearance when it’s perpendicular then look at getting some different exhaust mounts, some have three holes to give you clearance options.

I’ll get in on a ramp or I have access to a pit teouble is when I did it I had it jacked up and just matched length of end links to original and then dropped it back down so can’t see what’s going on when the weight is back on. The other mounts might be an option. Will report back.

Wonder if I could add a 4 post lift to my list ? Lol probably taking the **** a bit.
Old 04 November 2023 | 09:42 AM
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Originally Posted by 4evascoob
I’ll get in on a ramp or I have access to a pit teouble is when I did it I had it jacked up and just matched length of end links to original and then dropped it back down so can’t see what’s going on when the weight is back on. The other mounts might be an option. Will report back.

Wonder if I could add a 4 post lift to my list ? Lol probably taking the **** a bit.
Your suspension must be under load, with wheels on the ground, when you adjust the droplinks, so that the links aren't under load in a level static position . That should allow them to be perpendicular. You need a pit or an alignment ramp for that.
Old 05 November 2023 | 12:10 PM
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Originally Posted by hedgecutter
Your suspension must be under load, with wheels on the ground, when you adjust the droplinks, so that the links aren't under load in a level static position . That should allow them to be perpendicular. You need a pit or an alignment ramp for that.
will get it over pit early part of week and remove and do again. So take them off and allow car to sit with full weight and then adjust links to desired length for middle hole and then tighten yes ?
Old 05 November 2023 | 12:39 PM
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Yes, just make sure you have the spacers oriented correctly for using the middle hole on the bar, otherwise it’ll out unwanted torque on the bar and won’t adjust correctly.
Old 05 November 2023 | 08:30 PM
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this is how it was set up originally? But not right I’m guessing ?
Old 05 November 2023 | 09:37 PM
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Originally Posted by 4evascoob



this is how it was set up originally? But not right I’m guessing ?
Wont be able to tell from those pictures as the wheels are unloaded.
Old 06 November 2023 | 03:12 PM
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So with car under it’s on weight do the drop links need to be loose when fitted or fitted and then tightened so there under tension ?
Old 06 November 2023 | 04:39 PM
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Upside down I think !!!
Old 06 November 2023 | 06:14 PM
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Remove drop links, wheels on the floor, adjust drop link to size of 2 holes, 90° for top and bottom bolt on drop link aka square C ,slide it to holes ,nuts on job done
mine old setup on newage below
Old 06 November 2023 | 07:07 PM
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It was in upside down or reversed. The bend was facing down rather than up !! What a tit , all sorted. The links were nice and loose while under load then I gave it a few turns until the wobble went and locked it off. Dropped it back down. Also measured each side to floor and they were exact. It also now clears the exhaust !
Old 07 November 2023 | 10:11 AM
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Good outcome. I once spent 30 mins trying to fix a wrx arb to my hatch sti!
The bolts of the link should slide in without any tension, and be locked in place.
Given my experience with WL arbs, I'd spray lashings of bilt hamber or something similar on them
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Old 07 November 2023 | 10:17 AM
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to avoid this.....
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