thought you might like to see this...

Nice.....i was goin a subie box for new conversion but still found the strength off them still alittle on the week side...but this still sounds could be a good buy if wanting 5speed......

so the final ratio is 3.7 ?? its a very tall ratio

the guy is doing it to build an awd manx, so id imagine the rubber size would counteract the diff gears

JVL, PPG gearsets for a subie box are around 4-5k... so about the same as a built kombi box (excluding fitting the gearset in the subie box) & with an extra gear....

Tall Off road rubber needs a lower diff ratio, between 4.8 and 5,2 generally, 3.7 and big rubber will be low rpm at highway cruise. I dont know the gear ratios, but it'll probably be doing 2000rpm at 100km/h.

Quote:

Originally posted by STIDUB the guy is doing it to build an awd manx, so id imagine the rubber size would counteract the diff gears JVL, PPG gearsets for a subie box are around 4-5k... so about the same as a built kombi box (excluding fitting the gearset in the subie box) & with an extra gear....

The good news is we'll be offering different diff ratios as well. I should be able to announce them by the end of next week, the factory is just doing the final designs to ensure the tooth profile isn't weakened. I daresay we'll be able to offer ratios from 3.7 right up to 5.9 so all you offroaders can have your cake and still eat it when you're in 5th gear just coming on boost at 3,000rpm or so.

My AWD max runs 215/40/18's and will be a street/drag car so the diff ratio will be perfect for it, plus that's what the box had standard so we engineered the first one off that.

hey JVL these boxes hold 206kw standard and don't break if you shift gears properly. How much power do you want to put through one?

P.S. people my website with all the info and pix is http://www.members.iinet.net.au/~ttriebler 

cheers

Todd

JLV , is well up to date on the subaru gear boxes and I dont think needs any lessons

Its the final ratio that kills the subaru gear box, hence the many failures of the aussie 3.9/3.54 ratios. Subaru uped the ratios in JDM boxes ( 5MT ) 4.11 / 4.44

6 speeds , another story

Here is the ratio chart for those that are looking

as for power to run through mine , 330kw


http://spda-online.ca/modules/tinycontent/rewrite/tc_28.html 

Quote:

Originally posted by seagull JLV , is well up to date on the subaru gear boxes and I dont think needs any lessons Its the final ratio that kills the subaru gear box, hence the many failures of the aussie 3.9/3.54 ratios. Subaru uped the ratios in JDM boxes ( 5MT ) 4.11 / 4.44 6 speeds , another story

If we now look at the costs

Most stock JDM subaru 5 speeds come in around $1500.00
6 speeds are around $3000.00 and up these days & heaps stronger than the 5mt trans + no need for PPG gear sets

Sorry not trying to dish out any lessons...I am just getting up to speed on em myself.
I was asking a serious question though, how much power are you planning to put through a box JvL?
I am trying to guage how many people have combos over 350hp and would need ppg gearsets or 6 speeds.
95% of my enquiries to date are perfectly happy with the 5 speed and some lunatics even want the old 2wd box reversed that holds about 100kw.

6 speed definately a different design to the 5 speed and can't use my crownwheel and pinion, but it will go into 4 bolt and 8 bolt 5 speed 4wd boxes.

Total length 1/2 an inch shorter than a 6 rib if you cut the Subie 4wd extension housing in half or use the 2wd extension housing. And no adapter plate either so engine/box combo shorter.

Seagull, got a 6 speed you can send me? I'll swap you for one of my crownwheel and pinion sets and you can see if you can destroy it in your buggy! in the meantime I'll see about getting the 6spd reverse jobbie done so if you blow the third gear out of it I can sort you out for a reverse 6 speed.

Most people would only require a 5MT fitted as I would say the big market would be the ej22 & ej25 N/A conversions.

If we look at the 6Mt say a 02 RA STI ( I have this gear box in my liberty ) we get as factory a LSD front diff. Its very rare to get a LSD in a 5mt gear box. also keep in mind the 6MT is around 30kgs heaver than the 5MT gear bag,

Eru _ 67 so you know the 5MT ( awd trans ) measures 800mm over all ( I am not sure what the delete kit measures when fitted ) . If I recall a type 1 box is 600mm over all , an adapter plate is 10 or 12mm thick. I think JLV would be looking for a 400Kw > 450 Kw trans ( if he is messing with another toy these days.

Todd , I dont have a spare 6MT at this point of time

if any one is looking for a subaru awd 5mt gear box , I have one $1000.00

JVL, No Doubt you and seagull know your stuff.

For most of us, with modest gains in mind (if you can consider going from 1600 TP VW to EJ20T or the like modest) the reverse cut CW & P set is a great breakthrough. You get 5 forward gears in a 'box that mates natively to a Subaru motor without an adapter or special flywheel, etc....
These boxes handle enough power stock, and to be honest how much power do you need in an 800 kg beetle. ttriebler even stated the enquiries thus far were for N/A engined conversions. Racing or high HP applications aside, I think there is a market for this conversion. Perhaps the same reverse cut CW & P conversion can be produced for a 6 speed subaru ' box.

Thanks guys i value JVl and Seagull's experience and to be honest will be discouraging orders from pple with high power applications like hotted up ej25t's and so on. Those guys have the experience and have been kind enough to share their knowledge with us. It's not worth getting a bad reputation for something blowing up and also frigging people around. There's a lot of money invested in a drivetrain change, much more than just the r & p cost.

Anything up to ej20T is no problem in my books as that's the factory design spec.

You don't have to worry about whether or not there's a market or not for my product. I sold out of stock in the first week.

Now someone send me a 6 speed box so we can get it done!

The big thing with turbo motors is not the KW power they produce its the torque. Dave butler said when he rebuilt my box with the albins internals that there were signs of stress fractures in numerous parts of the box from the torque. Even though my gear set is now strong, that doesnt change the fact that the rest of the box remains a liability to some extent. Is it a dream to daily drive a 250atw+ beetle like you stole it, without fear of drivetrain weakness......possibly.

My point is, after all that ramble is that even with mobs the vw box essentially is not made to handle the torque and power we are talking on a daily basis. Just like a 1600 vw case is not designed to take a 2332 turbo motor on a daily basis.

The subaru box as a starting point will be alot stronger as a unit. If it breaks then replace the gears or whatever and it should be bullit proof. My vw box will never be!

The G50 is expensive if you can find a good one, and unless you are a master fabricator(steve) then they are too difficult to engineer.

I think the subaru option is a good one to consider for those doing a ej20t conversion.

Hi

I wish I knew about this a few years ago. Maybe next time.

If these prove popular with off road guys the price of subi trans will go up

I just put the numbers through a gear ratio program and they look good.

I just picked a random 5 speed.

JDM Impreza WRX MY93 1st 3.454 (48 kph) 2nd 2.062 (82 kph) 3rd 1.448 (116 kph) 4th 1.088 (166 kph) 5th 0.825 (203 kph) final drive 4.111, 6,000 rpm with a 24 inch tyre, 101 kph @ 3000 rpm

Steve