FFZ gearbox vs cable shift - Max power/torque?

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FFZ gearbox vs cable shift - Max power/torque?

Postby Citi 007 » Tue Oct 14, 2014 11:38 am

Hi guys,

So my gearbox is with Poy Elloff for new second gear synchro and the synchro hub. I have asked him to install a bolt kit to take care of the weakpoint. seals and oil will also be replaced.

What HP/Torque will thse boxes handle with the bolt kit before breaking again?

Currently making 150hp at KAR and I intend to go higher very soon. (closer to 170hp).

If i go cable shift how much will these boxes handle and what are their weak points?

Thanks for looking! :cool: :driving:

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Citi 007 » Tue Oct 14, 2014 6:39 pm

Bump

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Duck » Wed Oct 15, 2014 7:01 am

The box will be ok I had 160kw and 300nm on the wheels. The box held up to a lot of abuse.
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Citi 007 » Wed Oct 15, 2014 7:12 am

Donald, did you have a stock box or did you have a diff bolt kit fitted to it?

Poy also mentioned that the stock engine mounts also affects the gearbox when drag racing and i should upgrade to a solid poly setup.

EDIT to add: what clutch setup were you using?

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Duck » Wed Oct 15, 2014 7:30 am

The box was 100% stock. I used a front poly mount to stop the engine from rocking and to stop axle tramp.
Build your car for yourself, not what an internet forum tells you.

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Torker » Wed Oct 15, 2014 7:34 am

duck wrote:The box was 100% stock. I used a front poly mount to stop the engine from rocking and to stop axle tramp.



Proper mounts make a big difference - both my 16V's wheelspin so smooth that it feels like the clutch is slipping, no axle tramp, wheelhop or anything, just black lines in the road and the smell of burning rubber...

Edit to add - I'm using the same setup in both cars - Wikus's custom rear mount, solid GW press-in poly mounts on the side and ProThane Poly front mount, some vibration but not as bad as you would expect.
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby nd_s » Wed Oct 15, 2014 12:23 pm

Touch wood, my box is still fine, And i launch it like a mofo..
3 years still running strong, running about 140whp to the front wheels

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Citi 007 » Wed Oct 15, 2014 12:35 pm

nd_s wrote:Touch wood, my box is still fine, And i launch it like a mofo..
3 years still running strong, running about 140whp to the front wheels


Diff bolts installed or stock?

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Quik-Trix » Wed Oct 15, 2014 12:39 pm

Never knew the mounts impact the Gearbox, assumed it helped when changing gear and the impact on the linkage, Now that I think about it, makes sense. Thanks!

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Abnormal » Wed Oct 15, 2014 12:41 pm

stock ffz, stock mounts 120kw or so.

Seems fine
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Citi 007 » Wed Oct 15, 2014 12:48 pm

Abnormal wrote:stock ffz, stock mounts 120kw or so.

Seems fine


try removing those mounts to have a look - you'll be surprised. the rear one and the one under the battery seem to take on an od shape rather quickly.

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby BonesGP » Wed Oct 15, 2014 12:58 pm

I am using a stock AUG box. Mounting do make a difference. I have put full poly all round incl lower control poly bushes and a custom rear mounting from Wikus. What a beaut of a mounting. I can actually take the front mounting off due to the solidity of the rear mounting and the motor wont move. Pushing 200kw at KAR and box is still good.
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby nd_s » Wed Oct 15, 2014 1:27 pm

Citi 007 wrote:
nd_s wrote:Touch wood, my box is still fine, And i launch it like a mofo..
3 years still running strong, running about 140whp to the front wheels


Diff bolts installed or stock?

I have a bolt kit in mine..
Was no use cutting corners when it was built..

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby graham savage » Wed Oct 15, 2014 3:27 pm

020 boxes are good to 200Hp, seen some stock ones hold 250 but with bolted diffs. As long as you have a little mechanical sympathy with them you'll be fine, abuse any box and it'll break - or leave you

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby slakkie » Thu Oct 16, 2014 2:01 am

Did 320 on my 020 with bolt on kit but had nice strong clutch to help holding the power
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Citi 007 » Thu Oct 16, 2014 6:29 am

Thanks everyone - That gives me a lot more confidence as the diff bolts have been fitted.

Poy called yesterday afternoon to let me know i can pick up my box from Sarel's shop. :hug:

Now to get a Dyno booking to jet for race fuel :evil: cant wait to have her back on the road again! :driving:

I've also decided to fit Wikus's poly rear mounting while i'm at it. (already have the front poly mount installed and the side mounts i have press-in inserts waiting to go in)

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby graham savage » Thu Oct 16, 2014 6:54 am

Rather get the solid poly cambelt side mount - Wikus will have it too, instead of those silly inserts.

Get your pressure plate to Norbrake, ask Gavin to double spring and double strap it for you.

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Torker » Thu Oct 16, 2014 7:10 am

Mounts and inserts looks like this...

Wikus's custom rear mount:

Image

GW Cambelt side solid Poly insert:

Image

GW Gearbox side solid Poly insert:

Image
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Quik-Trix » Thu Oct 16, 2014 7:36 am

Torker wrote:Mounts and inserts looks like this...

Wikus's custom rear mount:

Image

GW Cambelt side solid Poly insert:

Image

GW Gearbox side solid Poly insert:

Image


Do you have these in yours? How are they in terms of engine movement?
I have the eaxct same setup in my build - all from wikus.

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Torker » Thu Oct 16, 2014 7:40 am

Quik-Trix wrote:Do you have these in yours? How are they in terms of engine movement?
I have the eaxct same setup in my build - all from wikus.


Yip, got this setup in my GT, engine movement is minimal. I will have a look if I've got a video of my car on the Dyno where you can see the engine...

Video added:

Image
Current rides:

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VW Golf - 78 LS 2.0 8V 4-door (2.1 ABF with throttles in progress)
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Citi 007 » Thu Oct 16, 2014 7:49 am

will that rear mount bolt up to the stock mounting position or do i need to mod anything?

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Torker » Thu Oct 16, 2014 7:52 am

Citi 007 wrote:will that rear mount bolt up to the stock mounting position or do i need to mod anything?


Bolts to the stock location...
Current rides:

VW Golf - 83 GT 2.1 16V 2-door with throttles
VW Golf - 78 LS 2.0 8V 4-door (2.1 ABF with throttles in progress)
VW Golf - '08 Citi Storm - 1.4 for now
Hyundai - 1.4 Getz (daily)

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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Abnormal » Thu Oct 16, 2014 9:39 am

hmmmm.. i need some of these.

not sure why yet but i know i need them :)
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby BonesGP » Thu Oct 16, 2014 9:51 am

I been using all poly from Wikus. Only have good praises about that rear mount.

I used to eat up the old mounts and in turn, it used to crack my turbo manifold.

Thanks Viper, just goes to show what advice and help you get from all the ous on the forum.
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Re: FFZ gearbox vs cable shift - Max power/torque?

Postby Quik-Trix » Thu Oct 16, 2014 9:54 am

Torker wrote:
Quik-Trix wrote:Do you have these in yours? How are they in terms of engine movement?
I have the eaxct same setup in my build - all from wikus.


Yip, got this setup in my GT, engine movement is minimal. I will have a look if I've got a video of my car on the Dyno where you can see the engine...

Video added:

Image


Thanks Torker! Looks solid right through the rev, Watched the vid like 5 times, car sounds insane :thumbup:

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