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Old 06-11-11, 02:55 PM   #1
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doug nash trannys and inline shifters?

I have seen a few rx7s with these set ups locally. I'm looking to use this set up myself in my drag car. But I can not find any real info on which Doug bash tranny is used in this set up. Anyone here used this set up want to chime in and clue me in?
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Old 06-11-11, 03:18 PM   #2
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Send your Doug Nash tranny off to Liberty for face plating, get a vertigate shifter. Just call Paul at Liberty for more info.
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Old 06-11-11, 05:33 PM   #3
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I am running a DN in my RX-3. As far as the tranny goes i can tell you anything you wan't to know.
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Old 06-12-11, 12:05 PM   #4
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I am running a DN in my RX-3. As far as the tranny goes i can tell you anything you wan't to know.

Your going to have to start with the basics or me...lol. I'm not really even sure on which Doug Nash tranny to use or what will even work. I found a few 4+1 and 4+3 trannys. I think they are both from c4 corvettes. Are these the one I should be looking at? Or should I be looking for a 5 speed DN tranny?

Where to get a bell housing adapter, what bell housings to use, clutch/flywheel combos, ect...

Any info here would be great, since I am basically oblivious to DN trannys. didnt even know they were being used until recently. lol...
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Old 06-12-11, 12:48 PM   #5
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The 4+1 is what you want. stay away from the 4+3 and the Richmond Street trans (they look very similar to the 4+1). The 4+1 is actually a 5 speed. Gforce sells the adapter and the input shaft you will need. I would suggest using a TII bellhousing and stock flywheel. All you need for a clutch is a good pressure plate and a sintered iron disc to match the spline of the input shaft.

Here are a couple pics for you.
Finally got my transmission back from liberty's (pics of shiny parts)

I would also recommend sending it to liberty's to have them do the face plate mod. It shifts MUCH better after this is done!
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Old 06-12-11, 02:58 PM   #6
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The 4+1 is what you want. stay away from the 4+3 and the Richmond Street trans (they look very similar to the 4+1). The 4+1 is actually a 5 speed. Gforce sells the adapter and the input shaft you will need. I would suggest using a TII bellhousing and stock flywheel. All you need for a clutch is a good pressure plate and a sintered iron disc to match the spline of the input shaft.

Here are a couple pics for you.
Finally got my transmission back from liberty's (pics of shiny parts)

I would also recommend sending it to liberty's to have them do the face plate mod. It shifts MUCH better after this is done!
THANK YOU!!!

I been googling my *** off and couldnt find any real info. Just a bunch of hot rodders and old school V8 guys using them.

So now i am on the hunt for a 4+1. but, I did however find a 5 speed doug nash locally for a decent deal. Already has an inline shifter on it. (the 5th gear is not an overdrive and has a 1:1 ratio). The guy told me it was on a circuit car originally and was an aftermarket tranny. Not a factory trans originally and it was before Richmond. Would this be just as good as a 4+1? or stick to the 4+1?
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Old 06-12-11, 04:56 PM   #7
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The 4+1 is a five speed with a 1:1 5th gear. As far as i know DN didn't make any race transmissions beside the 4+1. I would be skeptical of the trans locally. A circuit car shouldn't have an inline shifter. Get a pic of it and i can tell for sure. There are still TONS of parts for these transmissions out there you just have to know where to look.
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Old 06-13-11, 12:25 AM   #8
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How much are you looking to spend? Will the car ever be driven on the street?
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Old 06-13-11, 11:03 PM   #9
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I got the guy to send me some pictures of the tranny. I'll be able to post them tomorrow hopefully.

I'm not really sure what I'm looking to spend, I guess it would depend on the quality of the transmission in what it came with. this is for my all motor drag car, it will never see the street.
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Old 06-14-11, 10:53 PM   #10
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Heres some shots o it...

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
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What I had:
93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD Conversion - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE: Junked - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2 SOLD
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Old 06-15-11, 01:35 AM   #11
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Holy ****, did that thing come out of a boat? That is an "H" pattern shifter not an inline, not the best for drag racing. The one thing i need to see if it is the race or street box is not in the pic. Do you have a picture of the drain plug side of the case that is zoomed out a little? Also does it have a place to put a speedometer drive?


Edit: I am about 95% sure that is a street trans and not the pro shifted race trans. See if you can get pics of the other side.
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Old 06-15-11, 02:34 AM   #12
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There is a guy on the net that is selling a doug Nash 4+1 5 speed on the net with the bell housing, he states the tranny is alread set up for turbo/nos applicated drag car, everything on the inside has been refreshened...Check him out

I have a TII bell housing for sale right now if your interested...Its for sale Let me know...
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Old 06-15-11, 02:52 AM   #13
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here is a doug nash 4+1 on racingjunk.com
http://www.racingjunk.com/category/0...llhousing.html
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Old 06-15-11, 10:18 AM   #14
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Quote:
Originally Posted by 13B-RX3 View Post
Holy ****, did that thing come out of a boat? That is an "H" pattern shifter not an inline, not the best for drag racing. The one thing i need to see if it is the race or street box is not in the pic. Do you have a picture of the drain plug side of the case that is zoomed out a little? Also does it have a place to put a speedometer drive?


Edit: I am about 95% sure that is a street trans and not the pro shifted race trans. See if you can get pics of the other side.
Thanks, I'll see if I can get some pics of the other side. I think it is an in line shifter bit has an H pattern shift ****. I'll clarify with a guy first. but if it doesn't turn out to be the street transmission, I will not be buying it anyway.
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Old 06-15-11, 10:21 AM   #15
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here is a doug nash 4+1 on racingjunk.com
http://www.racingjunk.com/category/0...llhousing.html
that's basically everything I need all in one, seems perfect. sounds like the same one teddyrx2 seen also.
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Old 06-15-11, 12:33 PM   #16
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The inline shifter will have some sort of lever to pull it up to the 1-2 gate. That is definitely a "H" pattern.
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Old 06-15-11, 02:51 PM   #17
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Thumbs up

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here is a doug nash 4+1 on racingjunk.com
http://www.racingjunk.com/category/0...llhousing.html

Yup that's the guy selling the DN 4+1 for $2g's and it comes with the bell housing, I don't see it in the picture lol, but he say's it come with the sale...
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Old 06-16-11, 12:48 AM   #18
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here are some more pics... the owner send it to me last night
Attached Thumbnails
doug nash trannys and inline shifters?-2ppan1t.jpg   doug nash trannys and inline shifters?-2r2ymgj.jpg   doug nash trannys and inline shifters?-28klksz.jpg   doug nash trannys and inline shifters?-28tkfas.jpg   doug nash trannys and inline shifters?-26114zc.jpg  

doug nash trannys and inline shifters?-xeiffc.jpg  
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Old 06-16-11, 01:05 AM   #19
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Why can't i find this ad without the link?
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Old 06-16-11, 01:43 AM   #20
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Why can't i find this ad without the link?
This ad expired 6 days ago.
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Old 06-16-11, 02:05 AM   #21
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when i found it, I was using google and it popped up...

Where or what car do these Doug Nash Tranny's come out of?
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Old 06-16-11, 10:23 AM   #22
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I'm looking to work a deal for that one right now. But I still have my eye on the local trans because its much less expensive.

13bRx3 - The local DN trans did not come with a speed drive. He also told me it does have an H pattern shifter on it, but he has the inline shifter for it. He is getting me the other picture hopefully by tonight.
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Old 06-16-11, 12:15 PM   #23
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Seriously, if I was anywhere near that DN in Hollywood I would jump on it. How much will the adapter plate and Mazda input shaft alone cost? Seems like a good deal, and they already come pro-shifted so you could always wait to get it face-plated in the future. That other one doesn't look like it's been stored too well either...
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Old 06-16-11, 01:07 PM   #24
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Somebody anybody? Where or what car are these transmission found? what car?
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Old 06-16-11, 01:09 PM   #25
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They didn't come factory in any car. They are an aftermarket racing trans that is no longer made.
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Old 06-16-11, 01:09 PM
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