Jump to content
The mkiv Supra Owners Club

Jacks transmissions


buster

Recommended Posts

  • Replies 54
  • Created
  • Last Reply

Top Posters In This Topic

I think you could only offer a warranty on stock cars. I know that won't be popular With Getrag owners, but to be fair people who tune their cars are pushing them above what the gearbox was designed for. That is not your fault, or Getrags.

 

Offering a warranty on a modified one would be too open to abuse.

Link to comment
Share on other sites

Is there a more cost effective solution, like installing a Tremec Gearbox ? you can get these for 2-2.5K , parts are cheap due to high volume manufacturing

They are in OEM cars like the Hellcat, LS powered cars so are designed to take 700 ft lb torque

 

They never took off in the Supra market due to the loss in revenue companies will make on their **Uprated** OEM Supra Gearboxes ; you can only charge so much for an adapter plate

 

I read the 7 speed manual Tremec in the new Z06 is suppose to be fantastic

 

TR-6070 7-Speed RWD Manual Transmission found in the Chevrolet Corvette Z06

TR-3160 6-Speed RWD Manual Transmission found in the Cadillac ATS-V coupe

TR-6060 6-Speed RWD Manual Transmission found in the Dodge Viper ACR

TR-3160 6-Speed RWD Manual Transmission found in the Ford Shelby GT350R Mustang

 

Cheaper option Chris , create an adapter plate for a Tremec ;)

Edited by Jellybean (see edit history)
Link to comment
Share on other sites

If you are into drag racing you need a suitable gearbox and clutch. Period. the transmission doesn't know nor care if you are drag racing for £1000 wagers at Santa Pod, or away from the traffic lights in Milton Keynes. Synchro transmissions are not good bedfellows for fast gear changes. You need a dog box, a suitably prepared automatic, or a planetary style specialist drag transmission. There would be no way I would offer a warranty on Getrags behind single turbo engines or none stock turbo based twin turbos. The old adage would apply, "Speed costs, how fast can YOU afford to go?"

 

 

Quite why people drool over 6 or 7 speed boxes,auto or manual, I don't know. A turbo engine is (or should be) a broad power band unit and 5 gears are plenty. 3 or 4 in an auto with a torque converter.

 

 

Gearbox transplants will always be expensive, the demand for CNC' ing dozens of bits and bobs to fit a none OE transmission is just not there, so short runs are needed, which are costly. Adaptor plate, clutch release mechanism and hydraulics, gear lever assembly, rear cross member and rear mount, propshaft, tunnel clearance, correct ratios, correct input shaft spline for chosen clutch, does chosen clutch mount with a stock flywheel? Does the gear train chatter with a stock damped or an after market un-damped flywheel, blah blah. More to it than a casual look might suggest.

Link to comment
Share on other sites

Is there a Supra diff suitable? Would the transmission even fit the Supra tunnel? Custom prop, speed sensor etc. Flywheel/clutch combo? Slave cylinder?

 

Doing a custom manual swap properly is expensive. Which is why these budget BMW swaps seem to be poor to drive.

 

BMW gearboxes will be beyond their threshold at BPU power levels, the amount of Failures M3 stock cars are having ,once out of warranty is forcing owners to seek more affordable solutions than the eye watering bill to fox a DCT/SMG box ; reason why Ebay is flooded with them

Link to comment
Share on other sites

Gearbox transplants will always be expensive, the demand for CNC' ing dozens of bits and bobs to fit a none OE transmission is just not there, so short runs are needed, which are costly. Adaptor plate, clutch release mechanism and hydraulics, gear lever assembly, rear cross member and rear mount, propshaft, tunnel clearance, correct ratios, correct input shaft spline for chosen clutch, does chosen clutch mount with a stock flywheel? Does the gear train chatter with a stock damped or an after market un-damped flywheel, blah blah. More to it than a casual look might suggest.

 

True , but when parts for the Getrag cease if they have not already, these kits will not be short runs

 

Tremec is a high volume gearbox, so parts are easily got and cheap ; you can also get them in 5 Speed :)

Link to comment
Share on other sites

I think you fail to look at the bigger picture we traders have to see. Just how many people would actually buy a complete kit? *IF* the MKIV achieves true classic status the valuable ones will be un messed with stock ones. If it doesn't they won't be worth enough for people to want to spend much on repairing one anyway. The dedicated few who want to use them for some form of proper competition will fit proper competition transmissions.

 

So the market for fitting some mongrel synchro gearbox will be very small. If you have a good Getrag 6 speed look after it. Decent oil change intervals, no race changes, no El Cheapo clutches that drag or need all play taken out of the clutch linkage to make them release. If you want to play race drivers accept that repairing one will be costly. In fact if you want a race car, buy one, it's ALWAYS cheaper than modding a road car.

Link to comment
Share on other sites

Exactly as mentioned.

If a viable repair option was available in Europe/uk more owners would use it if prices weren't ridiculous.

 

That's why many owners don't do anything about little noises, or a few hard gears because it is so expensive to send abroad, or to risk sending it to someone who doesn't know exactly what they are doing.

It's a big risk.

 

I know of 3 people who are seriously considering sending to the states, and I know of 4 who are buying secondhand gearboxes.

But even now buying secondhand is a risk at those prices.

Link to comment
Share on other sites

Supra Specialists Ireland , had a few rebuilt; its not the cost of the rebuild or the complexity of the gearbox, it is the parts prices and availability of them

 

BMW M5, Skyline and Supra all run a 6 speed Getrag but I think the confusion is , it lends you to believe parts between these boxes are interchangeable but each gearbox was tailored to each car , mass production of interchangeable parts is just not there

Link to comment
Share on other sites

Im seriously considering sending my box to the states if not next year then the year after, it has had a serious whine ever since i bought it, guessing from previous owners neglect,

 

If you are considering doing rebuilds chris i will gladly send my box to you, warranty or not!

 

How many guys here would expect a company on the other side of the world to give out a warranty claim should something go wrong?

Link to comment
Share on other sites

Im seriously considering sending my box to the states if not next year then the year after, it has had a serious whine ever since i bought it, guessing from previous owners neglect,

 

If you are considering doing rebuilds chris i will gladly send my box to you, warranty or not!

 

How many guys here would expect a company on the other side of the world to give out a warranty claim should something go wrong?

 

 

exactly

Link to comment
Share on other sites

I would love a UK option for a gearbox refurb and I wouldn't expect any warranty despite my car currently being stock power. There's nothing currently wrong with my box, but it would be nice to have the option there should I need it. Really don't fancy having to ship it to the USA!

Link to comment
Share on other sites

Do V160/161 rebuilds (or W58 for that matter) require specialist knowledge of that particular gearbox? I ask because there are many gearbox specialists in the UK. I haven't come across any that claim to be experts in V16x or W58, but I wonder if that's important. It reminds me of new supra owners seeking out supra specialists to do their servicing for them, although IMO a standard-ish supra can be well-serviced by any competent mechanic: supra experience is not necessary.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.