Transmission questions (lsd, axles, size)
Transmission questions (lsd, axles, size)
I'm at the cross roads here and i'm faced with the following questions.
1. What lsd should I choose and why?
I know mfactory and quaife are the leaders in the game. Why one over the other? I know Quaife has a long histroy with being in the game for a quite a long time. I also heard that there customer service isn't that great either. Mfactory hasn't been in the game for a long time and also just recently came out with the d series lsd. I know i'm not going to be getting obx as I don't want to explode my tranny as it would be a waste of money. Besides that, they are also made in china/tiwan which isn't sothrilling to say the least. Any help would be appreciated.
2. I am thinking about putting in my zc tranny, whats involved with putting in equal length axles? Why choose equal length over non equal length? or vise versa?
3. Which is better? 35mm bearing or 40mm?
I honestly like the functionality of my hf trans for gas milage since i drive alot but I would like something better as far as quarter mile times or spirited driving like i do. Are there any advantages to running a smaller diff bearing over the bigger one? I know I can always swap gear sets, i currently have a couple trannys laying around, l3 dx tranny, l3 si tranny, l3 hf tranny with long gear ratios, and a zc tranny, all are cable btw. I am going to turbo so I would like something to hold up which is why I am goin to be upgrading the diff to lsd. Any help on the subject would be greatly appreciated. Thanks guys
I would also like to add that i did some searching for 35 vs 40 mm bearings and not much came up aswell as a search for which axle setup is better.
1. What lsd should I choose and why?
I know mfactory and quaife are the leaders in the game. Why one over the other? I know Quaife has a long histroy with being in the game for a quite a long time. I also heard that there customer service isn't that great either. Mfactory hasn't been in the game for a long time and also just recently came out with the d series lsd. I know i'm not going to be getting obx as I don't want to explode my tranny as it would be a waste of money. Besides that, they are also made in china/tiwan which isn't sothrilling to say the least. Any help would be appreciated.
2. I am thinking about putting in my zc tranny, whats involved with putting in equal length axles? Why choose equal length over non equal length? or vise versa?
3. Which is better? 35mm bearing or 40mm?
I honestly like the functionality of my hf trans for gas milage since i drive alot but I would like something better as far as quarter mile times or spirited driving like i do. Are there any advantages to running a smaller diff bearing over the bigger one? I know I can always swap gear sets, i currently have a couple trannys laying around, l3 dx tranny, l3 si tranny, l3 hf tranny with long gear ratios, and a zc tranny, all are cable btw. I am going to turbo so I would like something to hold up which is why I am goin to be upgrading the diff to lsd. Any help on the subject would be greatly appreciated. Thanks guys
I would also like to add that i did some searching for 35 vs 40 mm bearings and not much came up aswell as a search for which axle setup is better.
Re: Transmission questions (lsd, axles, size)
MFactory's runout is better than the Quaife and the price is less. Both are great quality pieces. My experience with Autotech's customer service hasn't been that great, but in the end they held up to their warranty (it is not Quaife's or the new US Distributor's warranty).
35mm or 40mm doesn't matter for most setups. 35mm weighs less.
If you want to use equal length axles, the only option is to pre-order the MFactory DOHC ZC LSD which is available exclusively from Whoopee Doo Racing. I had MFactory bring the 40mm D LSD to the market and nobody has had any problems with one. I'm having them bring the 35mm LSD to market and don't expect any problems from it either.
If the ZC trans is a DOHC ZC it will be the best if you put the Si FD in it. Otherwise use the DX or Si (if you use the DX, use the Si FD. both have the same gearing minus the FD). If you don't have the DOHC ZC axles and intermediate shaft, you can use the regular 40mm diff (or 40mm LSD) in the DOHC ZC trans so you can use the US axles.
35mm or 40mm doesn't matter for most setups. 35mm weighs less.
If you want to use equal length axles, the only option is to pre-order the MFactory DOHC ZC LSD which is available exclusively from Whoopee Doo Racing. I had MFactory bring the 40mm D LSD to the market and nobody has had any problems with one. I'm having them bring the 35mm LSD to market and don't expect any problems from it either.
If the ZC trans is a DOHC ZC it will be the best if you put the Si FD in it. Otherwise use the DX or Si (if you use the DX, use the Si FD. both have the same gearing minus the FD). If you don't have the DOHC ZC axles and intermediate shaft, you can use the regular 40mm diff (or 40mm LSD) in the DOHC ZC trans so you can use the US axles.
Last edited by Aquafina; Nov 9, 2009 at 10:00 AM.
Re: Transmission questions (lsd, axles, size)
Whos warranty is it?
I figured a bigger diff would be able to support more hp/torque? Thats why I asked about which diff.
I was just wondering if equal length axles makes a difference on how the power is put to the ground. I'm guessing no but am not sure. I really don't understand why honda designed the DOHC ZC with the intermediate shaft if it doesn't make a difference? I was doing some research but couldn't find a exact explaination as to why they did it but that it "helps torque steer" which I don't understand why an axle length would matter? Anyone care to shed some light on this?
Whats the difference between the si trans diff and the dohc zc diff? Are they both the same? If not, what are the differences?
Thanks for your reply
I figured a bigger diff would be able to support more hp/torque? Thats why I asked about which diff.
I was just wondering if equal length axles makes a difference on how the power is put to the ground. I'm guessing no but am not sure. I really don't understand why honda designed the DOHC ZC with the intermediate shaft if it doesn't make a difference? I was doing some research but couldn't find a exact explaination as to why they did it but that it "helps torque steer" which I don't understand why an axle length would matter? Anyone care to shed some light on this?
Whats the difference between the si trans diff and the dohc zc diff? Are they both the same? If not, what are the differences?
Thanks for your reply
MFactory's runout is better than the Quaife and the price is less. Both are great quality pieces. My experience with Autotech's customer service hasn't been that great, but in the end they held up to their warranty (it is not Quaife's or the new US Distributor's warranty).
35mm or 40mm doesn't matter for most setups. 35mm weighs less.
If you want to use equal length axles, the only option is to pre-order the MFactory DOHC ZC LSD which is available exclusively from Whoopee Doo Racing. I had MFactory bring the 40mm D LSD to the market and nobody has had any problems with one. I'm having them bring the 35mm LSD to market and don't expect any problems from it either.
If the ZC trans is a DOHC ZC it will be the best if you put the Si FD in it. Otherwise use the DX or Si (if you use the DX, use the Si FD. both have the same gearing minus the FD). If you don't have the DOHC ZC axles and intermediate shaft, you can use the regular 40mm diff (or 40mm LSD) in the DOHC ZC trans so you can use the US axles.
35mm or 40mm doesn't matter for most setups. 35mm weighs less.
If you want to use equal length axles, the only option is to pre-order the MFactory DOHC ZC LSD which is available exclusively from Whoopee Doo Racing. I had MFactory bring the 40mm D LSD to the market and nobody has had any problems with one. I'm having them bring the 35mm LSD to market and don't expect any problems from it either.
If the ZC trans is a DOHC ZC it will be the best if you put the Si FD in it. Otherwise use the DX or Si (if you use the DX, use the Si FD. both have the same gearing minus the FD). If you don't have the DOHC ZC axles and intermediate shaft, you can use the regular 40mm diff (or 40mm LSD) in the DOHC ZC trans so you can use the US axles.
Re: Transmission questions (lsd, axles, size)
If you bought a Quaife when Autotech was the US distributor it is Autotech's warranty. Not sure if the new US distributor has any kind of warranty or not. I should have asked the owner of Quaife as he came by the MFactory booth at SEMA.
The 40mm LSD is the same size as the 35mm. The only difference is the bearing hubs. 40mm is 2.5mm thicker.
Equal length axles help, which is why Honda used them, and still uses them.
Difference between the standard and DOHC ZC LSD is the size of the axles. DOHC ZC uses B series sized axles which will not fit in the standard diff.
The 40mm LSD is the same size as the 35mm. The only difference is the bearing hubs. 40mm is 2.5mm thicker.
Equal length axles help, which is why Honda used them, and still uses them.
Difference between the standard and DOHC ZC LSD is the size of the axles. DOHC ZC uses B series sized axles which will not fit in the standard diff.
Re: Transmission questions (lsd, axles, size)
If you bought a Quaife when Autotech was the US distributor it is Autotech's warranty. Not sure if the new US distributor has any kind of warranty or not. I should have asked the owner of Quaife as he came by the MFactory booth at SEMA.
The 40mm LSD is the same size as the 35mm. The only difference is the bearing hubs. 40mm is 2.5mm thicker.
Equal length axles help, which is why Honda used them, and still uses them.
Difference between the standard and DOHC ZC LSD is the size of the axles. DOHC ZC uses B series sized axles which will not fit in the standard diff.
The 40mm LSD is the same size as the 35mm. The only difference is the bearing hubs. 40mm is 2.5mm thicker.
Equal length axles help, which is why Honda used them, and still uses them.
Difference between the standard and DOHC ZC LSD is the size of the axles. DOHC ZC uses B series sized axles which will not fit in the standard diff.
Last edited by UltimX; Nov 10, 2009 at 07:36 AM.
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