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Old 28 December 2013 | 03:07 AM
  #31  
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The box job on a Impreza is 4 outa 10 compare to other cars. Try doing a E36 M3 box that ain't fun at all.

Chin up and slap a new box I'm job done
Old 28 December 2013 | 04:16 AM
  #32  
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Originally Posted by Fudgey
Well ive been offered a 45k mile box off an 07 wrx, just waiting to find out if the part number matches.

Thing is tho, the car has a 24kish api rebuilt engine so that should be good. But the box doesnt work lol.

I wont be after massive power, say 350bhp 350lbft at some point but the std box wont take it.
Hi there

Probably worth have look on older TY754 which are stronger than TY752(New age) and many people run on them early 400bhp and some above 500bhp without the issue

You are probably need to learn how to drive,if you are killing the gearbox,as many people run on New age WRX gearboxes lot more and they're not broke 5 speed

Nothing is bullet proof,6 speed will or can break too,like any gearbox

Good luck there

Jura

Originally Posted by ScoobyNoob79
The max I'd attempt on the 5 speed would be 330/330, even that may let go.

Even adding PPG isn't a failsafe, why do you think the STi comes with thicker/stronger driveshafts too?

The weakest component will eventually fail.

Honestly, either keep it around 300bhp or chop it in for an STi.
Many people proven on 5 speed you can run lot more than 330/330,its really depends how you drive and how you change the gears etc

PPG again,we run our at 555.5bhp without the issue,on previous occasions we are run 490bhp plus NOS,wagon has been used on drag or track days and we never have any issue with the gearbox plus we run WRX Driveshafts and WRX rear diff

6speed is nice,but still I prefer 5speed PPG due gear ratios and whine noise of the straight cut

Jura
Old 28 December 2013 | 06:30 AM
  #33  
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On mattys big sale thread he has a ty754 gearbox £150 only a slight crunch in 5th with a fast gear change at high rpm.
Old 28 December 2013 | 09:11 AM
  #34  
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Originally Posted by tubbytommy

id say first one in best

it doesnt annoy me at all your quite amusing as newb idiots go.

most people dont have experience of rebuilding wrx boxes beceause they are crap, they just fit an sti box or buy the sti in the first place
Are you serious? The forum is all the worse because of people like you.

The UK turbo/ wrx gearbox is perfect for what it was designed for. Yes, if you start doing 7k launches and constantly drive everywhere like a tw&t, then yes, of course it will break, just like any other gearbox. I also understand that they are nicer to use on a day to day basis.

It's the only gearbox I've had the four scoobies that I have owned. (Two of those were classic sti's, so they can't have been that bad!) And it's one of best 5 speeds I have ever used with the integra type r being the best.

The main problem is when people start taking the wrx beyond the capabilities of the standard td04 turbo. If a transmission is rated at 300ft/lbs of torque on a light duty of say 800 hrs per year, 5% of that at full power, then it is very easy to understand why they fail when people start using then in a different way than what was intended. That is how a manufacturer specs a transmission. I know, as I sell marine and industrial transmissions for a living.

What I think some Impreza owners fail to understand is that for many people, the WRX offers the perfect compromise between power/speed/reliability, without looking like a boy racer.

Last edited by Gear Head; 28 December 2013 at 09:27 AM.
Old 28 December 2013 | 09:20 AM
  #35  
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Originally Posted by tubbytommy
do it, one les wrx on the road and one less idiot owner to clog up this forum.


double win
you should **** off and take emmas with you, will be 2 less idiots
Old 28 December 2013 | 09:38 AM
  #36  
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Originally Posted by fawor
you should **** off and take emmas with you, will be 2 less idiots
you pigeon english is getting a bit better
Old 28 December 2013 | 10:29 AM
  #37  
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The code on the box i took out was 77-TY754VN2AA
So it was the stronger box.

I just dont think i could live with a straight cut nox on a daily basis. Im getting older lol
Old 28 December 2013 | 11:12 AM
  #38  
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How do you get a 2k return on a boggo wrx ? I struggle to get a grand from a bug wrx. Even with a gearbox to sell.
No offence intended, but 2k return is a big dream m8.
£400 engine
£150 box.
£40 for bonnet
£80 for brakes
£200 U.K. 300 trim.

Not much saleable gear after that pal.
Old 28 December 2013 | 04:17 PM
  #39  
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Originally Posted by Gear Head
The main problem is when people start taking the wrx beyond the capabilities of the standard td04 turbo. If a transmission is rated at 300ft/lbs of torque on a light duty of say 800 hrs per year, 5% of that at full power, then it is very easy to understand why they fail when people start using then in a different way than what was intended.
The best example of this has to be the M32 6 speed box used on the Astra VXR/CDTi. The box itself is rated for up to 320nm, which funnily enough is around what the Z20LEH (and what ever the 1.9CDTi lump is) is good for output wise. I'm sure we can all guess what a common failure is on the Astra VXR
Old 28 December 2013 | 07:31 PM
  #40  
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Originally Posted by PADDYHOEY
How do you get a 2k return on a boggo wrx ? I struggle to get a grand from a bug wrx. Even with a gearbox to sell.
No offence intended, but 2k return is a big dream m8.
£400 engine
£150 box.
£40 for bonnet
£80 for brakes
£200 U.K. 300 trim.

Not much saleable gear after that pal.
What about doors, wings, bumpers, spoiler, interior trim parts etc
It is a uk300 so has the hella headlights etc

Body panels arw not mint tho, stone chips and the odd dint etc

Well i stripped the box down earlier and its second gear that has gone.
All the syncros etc look to be in very good condition, no wear at all that i can see

Now thinking about trying to buy a new mainshaft, new second gear and replace all bearings and seals. As it looks to be in very good order.

Ill take it work when i go back and clean it all up if i can source the parts
Old 28 December 2013 | 07:46 PM
  #41  
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Just put a new box in and stop complaining
Old 28 December 2013 | 07:55 PM
  #42  
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As in brand new?

Icht dont think so!

By new you mean second hand with potential problems...
Old 28 December 2013 | 08:06 PM
  #43  
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Originally Posted by Fudgey
What about doors, wings, bumpers, spoiler, interior trim parts etc
It is a uk300 so has the hella headlights etc

Body panels arw not mint tho, stone chips and the odd dint etc
Get your breaking kit out and don't listen to Paddy, he knows absolutely **** all about Imprezas

Once you've made your dorrah on it you can get yourself an STi
Old 28 December 2013 | 08:08 PM
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I've not changed a gearbox on an Impreza, but most of the things I've done have been relatively straight forward (well more so than I thought for an idiot like me).

Try changing the throttle cable on an old school Vespa, or the rear wheel on a Honda Goldwing .
Old 28 December 2013 | 08:11 PM
  #45  
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Originally Posted by thenewgalaxy
Get your breaking kit out and don't listen to Paddy, he knows absolutely **** all about Imprezas

Once you've made your dorrah on it you can get yourself an STi
I must be doing summat wrong

I only break and repair Subaru's for a living for the past 15 years.

Lol.
Old 28 December 2013 | 08:21 PM
  #46  
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Well, i dont want to break it as i quite like drivimg it. But the more i think about what i want to do the more its going to cost of course.

I guess im going to repair it, but again its how to go about it. Just stick a second hand box in and hope for the best, or try and repair mine. Now i dont know where to get parts from, other than subaru and the nearest dealers is a good 30 mins from me.
Old 28 December 2013 | 08:31 PM
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TY754VBAAA's are rumoured to be one of the strongest early 5 speeds, the same as a P1 I believe. Again rumour, but I've heard people on here say they "can" be ok up to 400BHP.

Maybe give this chap a shout....
https://www.scoobynet.com/full-cars-...-breaking.html

or here...
https://www.scoobynet.com/subaru-par...i-v5-6-p1.html
Old 28 December 2013 | 08:35 PM
  #48  
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Originally Posted by Fudgey
Well, i dont want to break it as i quite like drivimg it. But the more i think about what i want to do the more its going to cost of course.

I guess im going to repair it, but again its how to go about it. Just stick a second hand box in and hope for the best, or try and repair mine. Now i dont know where to get parts from, other than subaru and the nearest dealers is a good 30 mins from me.
Unless your going to replace all the innards of the gearbox, your going to be as well to fit a secondhand box. Yes, only second is damaged as far as you can see but how well will the rest of the gear set fair once in use again. You can't warrent how long it will last, just the same as a secondhand box. Stop ****in about and get a box in the car and drive it.
Old 28 December 2013 | 08:54 PM
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Kwick, the one in the second link is sold.
But the first one is in oxford, im swindon so not far!!

Cheers bud ill try and get hold of the chap!!
Old 28 December 2013 | 08:57 PM
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Oh, would the P1 box be a straight fit or would i need the rear diff etc? What about prop and shafts etc oh and clutch???

Cheers!!

My car is a 2001 bug uk300

Last edited by Fudgey; 28 December 2013 at 08:58 PM.
Old 28 December 2013 | 09:32 PM
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From what I remember you'd need the matching diff. Good bit of info on this thread...
https://www.scoobynet.com/929113-cla...on-here-5.html
Old 28 December 2013 | 09:34 PM
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I'd recommend fitting a matching diff anyway.
Old 28 December 2013 | 10:00 PM
  #53  
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Cheers chaps, hopefully its not sold
Old 28 December 2013 | 10:36 PM
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Managed to find mateys number on the P1 site, he still has box and diff in the car so i can check to make sure all is good.

Looks like this may be the way to go then!
Old 29 December 2013 | 12:43 AM
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Don't be put off by the ******** on here who seem to reply to every single thread. They obviously have no life
Old 29 December 2013 | 08:58 AM
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Originally Posted by Fudgey
Managed to find mateys number on the P1 site, he still has box and diff in the car so i can check to make sure all is good.

Looks like this may be the way to go then!


Another good thread here....
https://www.scoobynet.com/scoobynet-...d-gearbox.html


Originally Posted by APIDavid
As I've said before I have had customers running close up to 400hp on a TY752 Vers 3 transmission and never broken it in 2 years of competition [ winning as well ! ] And guys on TY754 in road cars with barely 300 hp breaking 2nd or 3rd gear regularly.

Remember that any TY 752 is at least 12 years old with 12 years of metal fatigue. Some TY754's are 11 years old............

I think that somewhere between 350 - 380 hp and 350 - 360 ft lbs is probably Ok for a 754 - above that level and you're on borrowed time, BUT, the later 2.0 WRX 5 speeders are stronger again, especially the drop gear bearings at the back which are usually the source of most noises. So a late blob eye 2.0 5 speed is about as good as they get.

David
Originally Posted by MartynJ
520lbft seemed to be the breaking point
2 people I'd listen to over post count ******.
Old 31 December 2013 | 02:18 AM
  #57  
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Found a box and diff very local for £250, so will probably go that route and have mne rebult in the mean time.

From more research it seems that the P1 box has short ratios, so again not good for a daily.

Cheers all
Old 31 December 2013 | 10:22 AM
  #58  
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If you found it hard to get the box off wait till you try and get it back on 7 out of 10 times it's a bit of a mission, done loads in my time from 6 speed to 5 speeds and its always better if you get someone to give you a hand

Hope you get it sorted
Old 31 December 2013 | 05:27 PM
  #59  
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Cant say im looking forward to it tbh!
Hopefully picking the box up at the weekend but need to get new exhaust gaskets in the mean time. There is a subaru dealer local to where the bix is so ill pop in there and see if i can get some. Are subaru parts places open on saturdays?
Old 10 April 2014 | 05:54 PM
  #60  
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Originally Posted by swaynie
The box job on a Impreza is 4 outa 10 compare to other cars. Try doing a E36 M3 box that ain't fun at all.

Chin up and slap a new box I'm job done
E36's are easy to get the box in and out of!



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