d series LSD tranny?

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Old Nov 21, 2005 | 05:23 PM
  #1  
.Noah Fecks's Avatar
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Default d series LSD tranny?

did honda make a d series LSD tranny? or would i have to buy an aftermarket diff?
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Old Nov 21, 2005 | 05:39 PM
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Default Re: d series LSD tranny? (Noah *****)

Yes, and no. In that order.

Honda did indeed make D-series (ZC) LSD transmissions for other markets. You can put one on your car, IF you have the proper mounting holes in your engine block for the intermediate shaft's outer mount bracket. All this (and more) was just covered a few days ago ("LSD in D-series tranny - is it possible?" post).

If I were JUST trying to get a limited-slip diff into my existing transmission, I'd probably opt for an OBX unit, or even step up to a Quaife LSD. If I were going to use the ZC's closer-ratio gearing and LSD to build up a "hybrid" transmission (say, like ZC 1-4 gears, Si or HF 5th, and Si final drive ring gear coupled to the ZC LSD unit), then the expense of the ZC LSD tranny would be more acceptable. Last time I checked, IF you could find a ZC LSD transmission, they were running about $575, plus usually another $135-150 for shipping. At that price, the Quaife unit starts looking almost affordable!

For other ideas and thoughts, look up that other post.

Mike
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Old Nov 21, 2005 | 05:41 PM
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Default Re: d series LSD tranny? (Kwicko)

wait i have a sohc zc, does it have a lsd?
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Old Nov 21, 2005 | 06:24 PM
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Default Re: d series LSD tranny? (hondazc89)

The differential is not in the engine. (Sorry, just making fun of your wording.) Did you get a transmission with the engine? The easiest way to tell is to lift the front wheels and put the tranny in gear. Try to turn the wheel. If it turns and the other wheel turns the opposite way, no LSD. If it is hard to turn or doesn't turn, you have an LSD.
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Old Nov 21, 2005 | 07:23 PM
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Default Re: d series LSD tranny? (mikerbike)

thats not true about the lsd, only clutch type lsd's will turn in the same direction
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Old Nov 21, 2005 | 08:15 PM
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Default Re: d series LSD tranny? (hondazc89)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondazc89 &raquo;</TD></TR><TR><TD CLASS="quote">wait i have a sohc zc, does it have a lsd? </TD></TR></TABLE>

Not necessarily. It was an option in Japan/Europe (?). More than likely, you dont. Unless if you paid 400-500 for the transmission alone and has LSD stamped on it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mikerbike &raquo;</TD></TR><TR><TD CLASS="quote">The differential is not in the engine. (Sorry, just making fun of your wording.) Did you get a transmission with the engine? The easiest way to tell is to lift the front wheels and put the tranny in gear. Try to turn the wheel. If it turns and the other wheel turns the opposite way, no LSD. If it is hard to turn or doesn't turn, you have an LSD. </TD></TR></TABLE>

One way you can be certain you have LSD is to look into the axle hole (place where you put the axle into the transmission). If you can see through the other side, you have LSD, if not, you do not have LSD.
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Old Nov 21, 2005 | 08:26 PM
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Default Re: d series LSD tranny? (Crx Jimmy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondazc89 &raquo;</TD></TR><TR><TD CLASS="quote">wait i have a sohc zc, does it have a lsd? </TD></TR></TABLE>

Sorry, I worded my response a bit vaguely. While Honda DID make LSD-equipped ZC transmissions, they were an option, not a standard item from what I understand. Most ZC transmissions still had an "open" differential, unless ordered with an LSD.

If you ordered your SOHC ZC with an LSD-equipped transmission, then you in all likelihood have one. If not, then probably not. Importers usually charge an extra $300 or so for LSD transmissions.

Typically, an LSD is going to make its presence known coming out of a corner, hard on the gas. Open differentials will allow the tire with the least traction to spin (generally the inside wheel in a turn); LSDs will either pull you through the turn or, if you lose traction, you'll be spinning BOTH front tires.

People will tell you that doing a burnout in a straight line and leaving two black stripes means you have an LSD. That's not necessarily true. You could have a powerful engine that's just overpowering the tires and spinning them both at once, or you could just have really shitty tires.

If you remove the axles and look through the holes where they enter the transmission case, you'll see a hole that goes clear through the differential. If there's a bar running across that hole about midway through, it's an open diff (looks roughly like this: ø). If there's no bar, it's a limited-slip diff (looks more like this: o - just a round hole, all the way through). That's the generally-accepted SURE way to know if you have an LSD or not.

Mike
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Old Nov 21, 2005 | 08:37 PM
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Default

dont forget about the jdm d15b vtec trannys. some came in lsd ( both manual and automatic ) but that would require you to convert to a hydrolic system. better off getting a qualif (sp?) or obx lsd and having it installed. give gear speed a call or visit their site as they offer transmission services and can sell you a transmission with a lsd installed as long as you send yours in as a core.
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Old Nov 21, 2005 | 11:04 PM
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Default Re: (beyondspecs_jamar)

you can also get a phantom grip on ebay for 220.00 shipped and comes with upgraded springs.. yellow ones dont hold for ****..greens held 15psi on JRSC with 75shot of go juice with no problem
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Old Nov 25, 2005 | 04:47 PM
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.Noah Fecks's Avatar
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Default Re: (ppfalcon)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ppfalcon &raquo;</TD></TR><TR><TD CLASS="quote">you can also get a phantom grip on ebay for 220.00 shipped and comes with upgraded springs.. yellow ones dont hold for ****..greens held 15psi on JRSC with 75shot of go juice with no problem</TD></TR></TABLE>

thanks guys!
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Old Nov 29, 2005 | 06:16 PM
  #11  
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Default Re: d series LSD tranny? (Crx Jimmy)

Thanks CRX Jimmy. I actually did not know that. So, a Helical LSD will still turn the tires in opposite directions? I suppose I have to spend a few hours on the internet to figure out how those work now...
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Old Nov 29, 2005 | 07:19 PM
  #12  
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Default Re: (Noah *****)

dont waste your money on the Phantom Grip.
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