The Red Devil
#601
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Split the box yesterday, but didnt have time to post up any pics. Current findings:
1 tooth smashed off the input gear of 2nd, plus a few good chunks and graunches.
2/3 teeth knocked of the output gear of 2nd, plus a few good chunks and graunches.
Hub/carrier? for the 1st/2nd Selector has a chunk knocked out of it.
Bits of metal about the place but not as much as i was anticipating.
Will do pics tonight.
1 tooth smashed off the input gear of 2nd, plus a few good chunks and graunches.
2/3 teeth knocked of the output gear of 2nd, plus a few good chunks and graunches.
Hub/carrier? for the 1st/2nd Selector has a chunk knocked out of it.
Bits of metal about the place but not as much as i was anticipating.
Will do pics tonight.
#604
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Pics
Box on engine stand ready for stripping
Transfer case and output shaft together with selector
Centre diff housing
DCCD
End of main case, with 5th gear visible
One half of case with selctor rods and forks in situe, sorry forgot to take one with gears still in
A bundle of bits including modena front diff
A bit blurred, but one tooth hidden in casing
More shrapnel burried up here
Input gear missing one tooth
And again, together with one tooth!
Output gear with 2 teeth missing
And again
Chunk removed from carrier for selector fork
Still not decided on which way to go, dog or syncrhro.
I was thinking dog this morning, but swinging back round to synchro now, due to difference in cost, allbeit marginal, and the relative ease to swap over.
Steven
Box on engine stand ready for stripping
Transfer case and output shaft together with selector
Centre diff housing
DCCD
End of main case, with 5th gear visible
One half of case with selctor rods and forks in situe, sorry forgot to take one with gears still in
A bundle of bits including modena front diff
A bit blurred, but one tooth hidden in casing
More shrapnel burried up here
Input gear missing one tooth
And again, together with one tooth!
Output gear with 2 teeth missing
And again
Chunk removed from carrier for selector fork
Still not decided on which way to go, dog or syncrhro.
I was thinking dog this morning, but swinging back round to synchro now, due to difference in cost, allbeit marginal, and the relative ease to swap over.
Steven
Last edited by P20SPD; 19 April 2006 at 05:55 PM.
#605
Big lumps of hard steel...
I'll be very interested to see which way you go in the end.
I think a full dog box on the road would be murder and need a good fettle every 12 months?
Also:
Straight 1st 2nd and semi helical 3rd 4th, stock 5th?
or the other way round?
Weird oil.
Graham
I'll be very interested to see which way you go in the end.
I think a full dog box on the road would be murder and need a good fettle every 12 months?
Also:
Straight 1st 2nd and semi helical 3rd 4th, stock 5th?
or the other way round?
Weird oil.
Graham
#606
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steven, personally Id go syncro, then if you want to go dog sell the box.. just remember your goal was a fast road car, not a drag special.
#607
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Originally Posted by 911
Big lumps of hard steel...
I'll be very interested to see which way you go in the end.
I think a full dog box on the road would be murder and need a good fettle every 12 months?
Also:
Straight 1st 2nd and semi helical 3rd 4th, stock 5th?
or the other way round?
Weird oil.
Graham
I'll be very interested to see which way you go in the end.
I think a full dog box on the road would be murder and need a good fettle every 12 months?
Also:
Straight 1st 2nd and semi helical 3rd 4th, stock 5th?
or the other way round?
Weird oil.
Graham
Graham, Thats Redline Shockproof.
Straight cut 1st,3rd & 4rth
Semi Helical 2nd
Standard 5th
---john---
Last edited by John Stevenson; 19 April 2006 at 06:40 PM.
#608
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Just sat and read this in one go
Really great to see it develop and really sad to see it go as well
Just out of interest how much is one of those sumps?And what is it made out of?
Cheers
Danny
Really great to see it develop and really sad to see it go as well
Just out of interest how much is one of those sumps?And what is it made out of?
Cheers
Danny
#612
Does he not possess all 3 of the above?
Is shock proof oil ok in an 'old' box for road/race use?
John: (#607) why is that semi helical in 2nd? for good downshifts?
Do you have occation to drop from 2nd to first in a hill climb to boot-out of a corner?
I have just one corner at Prescott where I HAVE to do this in my Sti.
Graham
Is shock proof oil ok in an 'old' box for road/race use?
John: (#607) why is that semi helical in 2nd? for good downshifts?
Do you have occation to drop from 2nd to first in a hill climb to boot-out of a corner?
I have just one corner at Prescott where I HAVE to do this in my Sti.
Graham
#613
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Graham,
The semi helical gears have no impact on shaft quality. The 1st and second are from a PAR set of 4, which were semi helical 2-4 with straight cut 1st. John Stevenson's box is a dog box.
The semi helical gears have no impact on shaft quality. The 1st and second are from a PAR set of 4, which were semi helical 2-4 with straight cut 1st. John Stevenson's box is a dog box.
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Graham, what Paul says !! I don't know why Steven has a mix and match gearbox, probably circumstance, Steven ?
Yes 1st used at both Forrestburn and Fintray.
---john---
Yes 1st used at both Forrestburn and Fintray.
---john---
#615
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Yes Cirumstance. Dropped on a 1st and 2nd PAR kit, plus PPG 3rd and 4th considerably cheaper than the full PPG kit. This was thought to be pretty bullet proof (as far as you can get), and given that i had abused the hell out the identical setup on the Lateral car, with well over 100 more horsepower and torque, i was pretty confident it would hold up.
However, its seems a combination of events have surprised me, and quite a few others.
When it initially happened i thought the engine had gone, and then a drive shaft, but soon realised it was 2nd
Funny as hell at the time, and still funny now, but concern is now in my head as to what to do.
John, i will have a count up later on and get back to you.
Steven
However, its seems a combination of events have surprised me, and quite a few others.
When it initially happened i thought the engine had gone, and then a drive shaft, but soon realised it was 2nd
Funny as hell at the time, and still funny now, but concern is now in my head as to what to do.
John, i will have a count up later on and get back to you.
Steven
#616
Blimey oh riley, I was going to give you a bell to catch up (I still will do) but at least I've saved a fortune on the phonebill - if I'd have asked "so what's been going on with the car" then I think we'd still be on the phone next week
#617
So, for me and my hillclimb/road car:
Sti v3 donar box (currently inperfect condition)
PPG semi helical synchro on 1/2/3/4 and a UK 5th for cruising (Sti is a bit revvy at 80mph)
Impact oil
5 blade paddle from Lateral with sprung center
Avon slicks.
Wonder if it is better to get a slave box as the donar and sell the Sti box to off-set some cost?
Is this a DIY/While you wait at Paul's place...?
Sti v3 donar box (currently inperfect condition)
PPG semi helical synchro on 1/2/3/4 and a UK 5th for cruising (Sti is a bit revvy at 80mph)
Impact oil
5 blade paddle from Lateral with sprung center
Avon slicks.
Wonder if it is better to get a slave box as the donar and sell the Sti box to off-set some cost?
Is this a DIY/While you wait at Paul's place...?
#618
Drag it!
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Originally Posted by John Stevenson
Steven, count the teeth on the reverse/selector ring, I may be able to give you one, save you a couple of quid (assuming you stay Syncro)
---john---
---john---
#619
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Chiark, we must meet up for a beer one lunchtime, maybe next week?
Graham, see if you can source a duff box as a donor and go from there. Should get one for between 50 and 100 quid.
Steven
Graham, see if you can source a duff box as a donor and go from there. Should get one for between 50 and 100 quid.
Steven
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Graham that's exactly what i did with mine, sourced a broken box.
Then gives you the time to be able to get the box built up without the car off the road. Or strewn about the drive in many bits
Then gives you the time to be able to get the box built up without the car off the road. Or strewn about the drive in many bits
#622
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Graham,
Whats up, you were recommending API 800 quid rebuilds earlier.. now you recommend paul
Make your mind up..
David
Wonder if it is better to get a slave box as the donar and sell the Sti box to off-set some cost?
Is this a DIY/While you wait at Paul's place...?
Is this a DIY/While you wait at Paul's place...?
Make your mind up..
David
#623
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PS And building a box isnt a DIY thing! not unless you have a press and a few tools and know how to set the preload etc.
David
David
#624
I meant:
Drive the car to Zen
DIY to help/do the gearbox out of the car @ Zen (even i can do that)
Zen do the box
911 puts back in to save a few $$$
Or: Get a duff box (ie v6) and take loose box to Zen.
Go shopping with the wife for brownie points and come back for the box that day.
Fit box at home, struggle on your back on your own.
API do gearbox rebuilds, could get the kit off Paul and go there for same action (API much closer to me). API have a good link to Zen.
I'm going through all this as I expect the box may start to complain soon and there is only a 2 week gap between races now till end Sept.
Boy Scout stuff: Be prepared
Graham
Drive the car to Zen
DIY to help/do the gearbox out of the car @ Zen (even i can do that)
Zen do the box
911 puts back in to save a few $$$
Or: Get a duff box (ie v6) and take loose box to Zen.
Go shopping with the wife for brownie points and come back for the box that day.
Fit box at home, struggle on your back on your own.
API do gearbox rebuilds, could get the kit off Paul and go there for same action (API much closer to me). API have a good link to Zen.
I'm going through all this as I expect the box may start to complain soon and there is only a 2 week gap between races now till end Sept.
Boy Scout stuff: Be prepared
Graham
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In that case graham,
find a front diff now, find a donor casing now.
Buy the billet forks one month.
buy the bearings, seals etc another..
doesnt cost as much then
find a front diff now, find a donor casing now.
Buy the billet forks one month.
buy the bearings, seals etc another..
doesnt cost as much then
#626
Or doesn't feel as if it does!
The gearbox fund is started and will grow.
Getting the doner will be a case of ebay i think as people on here tend to know what is the good stuff...
I have a pre-occupation to keep the stock stuff so being able to put it back to stock when I'm done with the Impreza thing (ie hill climbing).
The Impreza is getting close to being out classed soon with some of the stronger cars coming in later in the year.
Thanks to all for the input!
Graham
The gearbox fund is started and will grow.
Getting the doner will be a case of ebay i think as people on here tend to know what is the good stuff...
I have a pre-occupation to keep the stock stuff so being able to put it back to stock when I'm done with the Impreza thing (ie hill climbing).
The Impreza is getting close to being out classed soon with some of the stronger cars coming in later in the year.
Thanks to all for the input!
Graham
#628
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Originally Posted by David_Wallis
PS And building a box isnt a DIY thing! not unless you have a press and a few tools and know how to set the preload etc.
David
David
Andy