attn ppl who have EJ with PT4WD EA boxes
- AlpineRaven
- Senior Member
- Posts: 3682
- Joined: Wed Oct 19, 2005 10:00 am
- Location: Melbourne, Victoria, Australia.
attn ppl who have EJ with PT4WD EA boxes
G'day,
Just out of curiosity - has anyone here have dual range boxes from L series (with 1.59:1 ratio) running behind EJ or EJ Turbo engines, have you used low range - have you blown a gearset yet? Also do you use low range as well? - Just wanted to know about the reliability of the gearsets. And also if you have blown one - which one was it?
Cheers
AP
Just out of curiosity - has anyone here have dual range boxes from L series (with 1.59:1 ratio) running behind EJ or EJ Turbo engines, have you used low range - have you blown a gearset yet? Also do you use low range as well? - Just wanted to know about the reliability of the gearsets. And also if you have blown one - which one was it?
Cheers
AP
Subarus that I have/had:
1995 Liberty "Rallye" - 5MT AWD, LSD - *written off 25/8/06 in towing accident.
1996 Liberty Wagon - SkiFX AWD 5MT D/R, Lifted.. Outback Sway Bar, 1.59:1 Low Gearing see thread: 1.59:1 in EJ Box Page
Sold at 385,000kms in July 2011.
2007 Liberty BP Wagon, 2.5i automatic
1995 Liberty "Rallye" - 5MT AWD, LSD - *written off 25/8/06 in towing accident.
1996 Liberty Wagon - SkiFX AWD 5MT D/R, Lifted.. Outback Sway Bar, 1.59:1 Low Gearing see thread: 1.59:1 in EJ Box Page
Sold at 385,000kms in July 2011.
2007 Liberty BP Wagon, 2.5i automatic
mine hasent broken yet it wines a bit like reverse does
actually suprises me it survived rocking on and off traction (very rutted out hill) at 5500rpm
might not do that again now i think about it
actually suprises me it survived rocking on and off traction (very rutted out hill) at 5500rpm
might not do that again now i think about it
- 92 brumby, ej22, MT5AWD, lseries low range, centre diff lock, glf5 dash, 5 stud conversion
lifted 3" front 2" rear all rolling round on 27" khumo Kl71's
more in progress ie:adaptronic ecu and sc14 supercharger
lifted 3" front 2" rear all rolling round on 27" khumo Kl71's
more in progress ie:adaptronic ecu and sc14 supercharger
- AlpineRaven
- Senior Member
- Posts: 3682
- Joined: Wed Oct 19, 2005 10:00 am
- Location: Melbourne, Victoria, Australia.
Nah not scorpion gearset, just standard 1.59 low ratio.Subafury wrote:is that the extra low scorpion gearset?
the answer is probably the same tho- just dont crunch it quick, give it death or get airborne and you'l be fine.
Yeah i'm hoping to take it easy with the box normally i am!
Cheers
AP
Subarus that I have/had:
1995 Liberty "Rallye" - 5MT AWD, LSD - *written off 25/8/06 in towing accident.
1996 Liberty Wagon - SkiFX AWD 5MT D/R, Lifted.. Outback Sway Bar, 1.59:1 Low Gearing see thread: 1.59:1 in EJ Box Page
Sold at 385,000kms in July 2011.
2007 Liberty BP Wagon, 2.5i automatic
1995 Liberty "Rallye" - 5MT AWD, LSD - *written off 25/8/06 in towing accident.
1996 Liberty Wagon - SkiFX AWD 5MT D/R, Lifted.. Outback Sway Bar, 1.59:1 Low Gearing see thread: 1.59:1 in EJ Box Page
Sold at 385,000kms in July 2011.
2007 Liberty BP Wagon, 2.5i automatic
- discopotato03
- Senior Member
- Posts: 2134
- Joined: Sun Mar 18, 2007 9:29 am
- Location: Sydney
I think the trick is to have some mechanical sympathy when in low range , assuming your 1st ratio is 3.545 and diff ratio is 3.9 the overall first low gearing has reduced from approx 16.5 to 1 to 22 to 1 .
This means you're talking about ~ 25% reduction in gearing and increase in torque multiplication in a gearbox that is 0% stronger than it was before .
I can tell by the pics that AR's later gearbox's shafts/gears/bearings are beefed up on the L series ones but its debatable if they are 25% stronger .
The correct way to have stronger gears is to have larger diameter ones rather than wider ones and that means bulkier heavier gearboxes .
If people are going to rip tear and bust drive their cars in LR they have to expect to break gearboxes , manufacturers do push their mule test vehicles fairly hard and this is where Subaru would have found the failure rate with lower LR gears unacceptable in heavier EJ powered vehicles .
True their are situations where throwing an off roader at something is the only way to get over it and thats where more serious off roaders have a chassis/live axles/beefy suspension links/real truck transmission .
No OEM Subaru transmission from the MY/L/Lib Imp/Forrester/Outback range has what you'd call a serious manual gearbox , not even the six spd ones .
My R33 Skyline has huge gears and shafts compared to anything in the above range , basicly a RWD GTR transmission - std .
Be nice to it and you shouldn't have too many problems .
A .
This means you're talking about ~ 25% reduction in gearing and increase in torque multiplication in a gearbox that is 0% stronger than it was before .
I can tell by the pics that AR's later gearbox's shafts/gears/bearings are beefed up on the L series ones but its debatable if they are 25% stronger .
The correct way to have stronger gears is to have larger diameter ones rather than wider ones and that means bulkier heavier gearboxes .
If people are going to rip tear and bust drive their cars in LR they have to expect to break gearboxes , manufacturers do push their mule test vehicles fairly hard and this is where Subaru would have found the failure rate with lower LR gears unacceptable in heavier EJ powered vehicles .
True their are situations where throwing an off roader at something is the only way to get over it and thats where more serious off roaders have a chassis/live axles/beefy suspension links/real truck transmission .
No OEM Subaru transmission from the MY/L/Lib Imp/Forrester/Outback range has what you'd call a serious manual gearbox , not even the six spd ones .
My R33 Skyline has huge gears and shafts compared to anything in the above range , basicly a RWD GTR transmission - std .
Be nice to it and you shouldn't have too many problems .
A .
- Outback bloke
- Senior Member
- Posts: 2103
- Joined: Fri Sep 30, 2005 10:00 am
- Location: Morayfield - Queensland
- Contact:
Subaman has been running one in his car for about 3, 4 or more years now. He blew second gear in it once. It was a random "blow" in that he was driving in second gear and went for 3rd. It didn't de-select 2nd correctly and the gears bound and then blew. Theory behind it is worn bearings. It was an old box that had a whine in it. When we took it apart to rebuild was when we found the centre bearing collapsed.
- AlpineRaven
- Senior Member
- Posts: 3682
- Joined: Wed Oct 19, 2005 10:00 am
- Location: Melbourne, Victoria, Australia.
interesting above.... Yeah i'll wait and see what happens.. If mine blows i'll let you guys know! i think mine will be alright.
Cheers
AP
Cheers
AP
Subarus that I have/had:
1995 Liberty "Rallye" - 5MT AWD, LSD - *written off 25/8/06 in towing accident.
1996 Liberty Wagon - SkiFX AWD 5MT D/R, Lifted.. Outback Sway Bar, 1.59:1 Low Gearing see thread: 1.59:1 in EJ Box Page
Sold at 385,000kms in July 2011.
2007 Liberty BP Wagon, 2.5i automatic
1995 Liberty "Rallye" - 5MT AWD, LSD - *written off 25/8/06 in towing accident.
1996 Liberty Wagon - SkiFX AWD 5MT D/R, Lifted.. Outback Sway Bar, 1.59:1 Low Gearing see thread: 1.59:1 in EJ Box Page
Sold at 385,000kms in July 2011.
2007 Liberty BP Wagon, 2.5i automatic
- Ben
- Junior Member
- Posts: 853
- Joined: Tue Oct 04, 2005 10:00 am
- Location: Coffs Harbour, North Coast NSW
I had a NA EJ20 in front of a EA L series box and used the low range on mostly beaches which is a lot of load on a gear. Shouldn't be any probs generally as the EJ/EA low swap shows, the EJ gearbox is essentially an EA gearset in a slightly different housing. ie Subaru were happy for that gearset to be behind a 100kw EJ22 so no worries.
- stamp_licker
- General Member
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- Joined: Wed Oct 05, 2005 10:00 am
- Location: Kallangur.Bris North
- vincentvega
- Senior Member
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- Location: Brisvegas
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