can the w58 be built up or re-enforced somehow???
#1
can the w58 be built up or re-enforced somehow???
Just wondering,
what options are available on the W58 5speed?
can the gears be beefed up somehow?
What about the cryo freezing, it's supposed to strengthen the metal....
just wondering what else can be done besides going to the 6speed......
what options are available on the W58 5speed?
can the gears be beefed up somehow?
What about the cryo freezing, it's supposed to strengthen the metal....
just wondering what else can be done besides going to the 6speed......
#3
surely there are some cheaper options to making the W58 5-speed transmission stronger and better able to handle more horsepower? The Getrag 6-speed transmissions are quite expensive for me . Anyone know of anyone "beefing up" their W58 transmissions?
#5
Originally Posted by kmn5
Just wondering,
what options are available on the W58 5speed?
can the gears be beefed up somehow?
......
what options are available on the W58 5speed?
can the gears be beefed up somehow?
......
#6
Short answer: No. This has been discussed alot on Supraforums and they have just realized that the W58 is a weak, weak tranny. You gotta be real careful with her, even with just daily driving
So your options are the R154 or the Getrag
So your options are the R154 or the Getrag
#7
Originally Posted by /Aerostar\
they have just realized that the W58 is a weak, weak tranny. You gotta be real careful with her, even with just daily driving
The W58 was way overbuilt for what it was meant to be used for: 200HP.
It could also be said that the 2JZ is a weak, weak motor, because it's internals have the tendancy to crumble above 1000rwhp.
It is in no way a weak tranny.
~Alan
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#8
Alan,
I think its just weak by dyno queen standards
In either case, the tranny becomes the limiting factor when shooting for higher horsepower applications. Sure, there are thousands of others, but some are more easily upgradable than others. The turbo project needs to be planned around the limits of the motor, fuel, engine bay and tranny. If any of those become the limiting factor, the project has to stop and be modified. If there were no room in the engine bay, there would be no turbo and the tranny wouldnt be an issue at all. If the motor were to stop making power at 400rwhp like under stock compression/fuel conditions, the tranny wouldnt be an issue. Its because the engine bay can fit a y2k in there and the motor can handle 1000+ rwhp that the tranny has to be considered.
in my opinion, 6speed is the way to be
if only i had money to afford one...
I think its just weak by dyno queen standards
In either case, the tranny becomes the limiting factor when shooting for higher horsepower applications. Sure, there are thousands of others, but some are more easily upgradable than others. The turbo project needs to be planned around the limits of the motor, fuel, engine bay and tranny. If any of those become the limiting factor, the project has to stop and be modified. If there were no room in the engine bay, there would be no turbo and the tranny wouldnt be an issue at all. If the motor were to stop making power at 400rwhp like under stock compression/fuel conditions, the tranny wouldnt be an issue. Its because the engine bay can fit a y2k in there and the motor can handle 1000+ rwhp that the tranny has to be considered.
in my opinion, 6speed is the way to be
if only i had money to afford one...
#9
so far so good for me, except that slipping clutch, i think it all depends on how you drive and take car of it, don't shift the tranny like its the daytona USA arcade game, it needs to be gently shifted,..,
#10
I have had some questions about this as well for my old car. I emailed a cryo treating company and here is their response. For what it's worth:
"Thanks for your e-mail and interest in our Cryo Treatment. We have been successfully treating transmissions and rearends for many years including a 300% improvement in the life of the gears, shafts, and bearings of a 14,000 horsepower Modified Pulling Tractor powered by four turbine engines. Nothing broke, but after that many hooks they decided it might be best to finally replace everything with new Cryo Treated parts. We should treat all the parts of your disassembled tranny (gears, shafts, bearings, forks, and case) as well as your axle/CV-joints. We have treated axle/CV-joints for Import Dragracers with over 650 horsepower and increased the life from 6 passes to 40 passes (it broke on pass #41)……..not a bad improvement, a net gain of 566%. There is such a wide range in the size and weight of transmissions, rearends, and axles, that I had to determine a simple means of figuring the cost of the treatment, so we treat those parts for $2.50/per pound. Therefore, treating 100 pounds OF THOSE PARTS at $2.50/per pound = $250.00. Not bad “insurance” considering the cost of the parts. We have a minimum run charge of $75.00. That DOES NOT mean that we ad $75.00 to the treatment cost. IT MEANS THAT if the treatment totals less than $75.00 (for example, 20 pounds @ $2.50/per pound equals $50.00 BUT BECAUSE OF THE MINIMUM RUN, THE COST WILL BE $75.00. Why not also treat your disassembled engine ($450 for a 4-cylinder automotive engine and $562.50 for a 6-cylinder or 8-cylinder automotive engine, as the treatment normally results in an increase in horsepower of 2-6% along with reduced wear and breakage and much longer between rebuilds.
The demand for our treatment results in loading our Cryogenic processors (of which we have many) two times each week. We ask our customers to have their parts (cutting tools, engines, transmissions, rearends, axles, brake rotors and brake drums, turbochargers and superchargers, firearms, musical instruments, etc.) delivered to us by noon on either Tuesday or Friday as we load processors each Tuesday afternoon (the treatment of the Tuesday loads will be completed and shipped on Friday) and Friday afternoon (the treatment of the Friday loads will be completed and shipped on Tuesday). We are the oldest, largest commercial cryogenic company in the U.S. and look forward to treating for you. Thanks again.
Bob Reed, Motorsports Div. Mgr./Mining & Construction Specialist
300 Below, Inc.
2999 East Parkway Drive
Decatur, IL 62526
Phone: (800)550-2796
Fax: (217)423-3075"
I would like to point out I'm not saying everything they claim is true but I figure it's worth looking into. I have hear other good stories from RX-7 guys that have suffered from blown trannies and this seemed to help them.
Just my $0.02
"Thanks for your e-mail and interest in our Cryo Treatment. We have been successfully treating transmissions and rearends for many years including a 300% improvement in the life of the gears, shafts, and bearings of a 14,000 horsepower Modified Pulling Tractor powered by four turbine engines. Nothing broke, but after that many hooks they decided it might be best to finally replace everything with new Cryo Treated parts. We should treat all the parts of your disassembled tranny (gears, shafts, bearings, forks, and case) as well as your axle/CV-joints. We have treated axle/CV-joints for Import Dragracers with over 650 horsepower and increased the life from 6 passes to 40 passes (it broke on pass #41)……..not a bad improvement, a net gain of 566%. There is such a wide range in the size and weight of transmissions, rearends, and axles, that I had to determine a simple means of figuring the cost of the treatment, so we treat those parts for $2.50/per pound. Therefore, treating 100 pounds OF THOSE PARTS at $2.50/per pound = $250.00. Not bad “insurance” considering the cost of the parts. We have a minimum run charge of $75.00. That DOES NOT mean that we ad $75.00 to the treatment cost. IT MEANS THAT if the treatment totals less than $75.00 (for example, 20 pounds @ $2.50/per pound equals $50.00 BUT BECAUSE OF THE MINIMUM RUN, THE COST WILL BE $75.00. Why not also treat your disassembled engine ($450 for a 4-cylinder automotive engine and $562.50 for a 6-cylinder or 8-cylinder automotive engine, as the treatment normally results in an increase in horsepower of 2-6% along with reduced wear and breakage and much longer between rebuilds.
The demand for our treatment results in loading our Cryogenic processors (of which we have many) two times each week. We ask our customers to have their parts (cutting tools, engines, transmissions, rearends, axles, brake rotors and brake drums, turbochargers and superchargers, firearms, musical instruments, etc.) delivered to us by noon on either Tuesday or Friday as we load processors each Tuesday afternoon (the treatment of the Tuesday loads will be completed and shipped on Friday) and Friday afternoon (the treatment of the Friday loads will be completed and shipped on Tuesday). We are the oldest, largest commercial cryogenic company in the U.S. and look forward to treating for you. Thanks again.
Bob Reed, Motorsports Div. Mgr./Mining & Construction Specialist
300 Below, Inc.
2999 East Parkway Drive
Decatur, IL 62526
Phone: (800)550-2796
Fax: (217)423-3075"
I would like to point out I'm not saying everything they claim is true but I figure it's worth looking into. I have hear other good stories from RX-7 guys that have suffered from blown trannies and this seemed to help them.
Just my $0.02
#11
Hmmm.....very interesting....
So would they take the whole tranny and just freeze it as-is, or would they take it apart, freeze the parts, and then put it back together?
Sounds very futuristic. =)
~Alan
So would they take the whole tranny and just freeze it as-is, or would they take it apart, freeze the parts, and then put it back together?
Sounds very futuristic. =)
~Alan
#12
this process has acutally been going around for a while.
if i remember correctly...i think everythign is taken apart and cyoed individually then put back.
question is...how much do our tranny's weight?
if i remember correctly...i think everythign is taken apart and cyoed individually then put back.
question is...how much do our tranny's weight?
#13
Yes it needs to be taken apart. You wouldn't need to do the entire thing. You would probably just want to do the input and out put shafts. As well as all of the gears themselves. This would also be a good chance to replace seals and syncros.