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Discussion Starter #1 (Edited)
Hey guys,

After some advice before i start making decisions in the future. I own a D16z6 in a 92 - 95 Civic hatch. Currently in the build stage and will be going for 400whp. I am at the point where i have to make some decisions in regards to my transmission / axels so i hopefully will not be constantly breaking/replaceing parts.

Firstly what would be the best base manual Transmission for the D16z6 ? Any manufactures out there that make Strait cut gears for the d16z6 tranny? if so would they be necessary. What are some good things to have done to ensure your tranny can handel the most power and last a long time ?

Firstly what LSD would be best for my needs. The reading i have been doing is the Mfactory Helical seems to be popular? but is there anything else (expect the OBX) that is strong & reliable ? Generally what is more desirable Clutch or Helical LSD?
MFactory Competition Products - Forged Transmission Components

What will be my best option with driveshafts? I have blown up countless OEM shafts and really need to get a product 'Fit for purpose'. The 2.9 stage drive shaft shop axels for the D16 look good on paper, but is there anything better / stronger on the market? or is this the best / best value
THE DRIVESHAFT SHOP

With the products above are there any hidden problems / catches when dealing with the suppliers etc

Thanks in advance!
 

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Classic Man
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you want helical LSD's.


Quaife and mFactory are the best. i use mfactory in mine, with over 75 passes on it, i am not worried about it


as for gears, just use stock they are fine for your power level. (not to mention we dont have other options) at this point your only option would be to go B series transmission, and dole out the cash for some aftermarket gears, which mfactory make as well. expect to pay a minumum of $7000 for your transmission at this point (more than my entire 10 second build cost me)

as for axles, i prefer my axles to be my weak point. if something is going to break, id perfer it be a part that cost me $45 and i can swap out in 15 minutes.


hope that helps you.


also, FYI, i only broke 1 axle all year last year, because i was trying to show off for a camera and did my burnout for what felt like hours... lol just too much tire bite. shattered the inner CV cage.
 

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Discussion Starter #3
I can see what your saying. Generally speaking what is the next weakest link to go after shafts? I will be running a ACT ho23x clutch and Fidanza light Fly wheel. Im hopeing that the weakest link would simply be the tyres, but when i run slicks... i can see what your saying that, i would rather blow a drive shaft the rip first gear apart...
 

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Hi hater!
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the price of the d2b is rather cheap considering the time and money it will save you in the long run. Even if its a ls still better gearing than the ex/si you can buy the b lsd and not buy both th d and the b when you decide to upgrade........ And I'm working on an even easier way to do the conversion with basically no fab work.....
 

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i think D2B is for a track car. if your going to get serious into drag racing then its something to consider.

all i did was replace the gears that were chewed up from the previous owner. then threw in a Mfactory lsd. well worth the money.
thats your best thing to do and like danz said axles are cheap and easy to replace.
 

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Discussion Starter #7
Is there a D2B conversion kit on the market? or all custom fabrication ? How much will one of these conversions set someone back? are there any sucessful writeups online about people who have done it?
 

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one grumpy old man
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boosted-eh has a B in his engine bay. right now, there is some custom work involved. hopefully soon there will be kits available


you could also grab the evolution d2b adapter plate.
 

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Hi hater!
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Is there a D2B conversion kit on the market? or all custom fabrication ? How much will one of these conversions set someone back? are there any sucessful writeups online about people who have done it?
Yes me its in the DIY section you will have to wade through some chit chat but the steps I took are there and Comp offers the flywheel I can find you the P/N if you are really interested. Hit up speedfactory his sn on here is JFK78 they can get the rest sorted out....
 

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Discussion Starter #10
I would like to know the advantage of a Bseries Tranny. Obviously the physically thicker gears is an advantage however i dont think the shorter ratios is benefitical in a high power application... IMO you would want longer gears to be in the high power band longer etc
 

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Hi hater!
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I would like to know the advantage of a Bseries Tranny. Obviously the physically thicker gears is an advantage however i dont think the shorter ratios is benefitical in a high power application... IMO you would want longer gears to be in the high power band longer etc
Not drag racing on top of all the aftermarket support which is basically not much for the D. Stock B trans will hold up pretty well to what the average person can throw at it with a D. There will be a few of us that will be giving the stock trans hell but like I said a few.
 

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For my 400whp setup I went with a Quaife LSD and Autozone reman axles with a lifetime warranty. If I ever break one, free replacement! Stock Z6 gearing with a stock 4.25 FD.

The reason you are breaking axles is because of your driving/launching styles...read up on "pre-loading" and that'll help you a ton!
 

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EJ6
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as for gears, just use stock they are fine for your power level. (not to mention we dont have other options)
what about the M-factory final drives and close ratio sets?
 
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