Lencodrive advise needed

Hi Guys,
Never had a Lenco drive dragster before, hence the question:
A Lencodrive 2 speed/reverser/standard output, with can is 24.7" long.
We have 24.2" from the back of the engine plate to the front of the (male) pinion on the rear.

Obviuosly we have to make new rearend plates to move the rearend back further, but Lenco Tech guys couldn't tell us how much room everyone usually allows? I thought enough to cover the 24.7" length, plus the length of the big studs through the engine plate, and the length of the male diff pinion, plus say 1/2" (?), to cover be able to get the trans out of it.
Its a blown Hemi dragster for mid 6 second deal.
Thoughts?

 

I don't have the car anymore so don't have measurements, but I had a 2-speed with the 6.7" bell and shortened output shaft in an ex-fuel chassis, and I wound up just having to loosen the motorplate and sliding the engine forward on the saddles to get the tranny out, could'nt move it much because of oil pump/upright interference, maybe 1 1/2" total but it was enough. If you give it a 1/2" on top of the stud length, you should be OK.

 

Lenco are saying (by phone and their website) that the can is 7.2" deep, was yours shorter or ?
We have an ex-fuel chassis also, circa early 90's ex-Bud car. Engine can go forward about 1.25" on the saddles, but studs are longer than that.

How far was your trans output shaft to the front of the male diff coupler?
Cheers

 

My Titanium Can Is 7.2"

 

Al, to be honest, I'd just be guessing on the measurements, I sold the car almost 3 years ago, but I bought the tranny from Snyder in '02, at that time he had, I think 3 different depth bell housings, the 6.7", 7.2" and a deeper one. It kind of sounds like they may have done away with the 6.7". He was recommending Coan for convertors, seems like Jason had to use a special housing to fit inside the 6.7". Snyder cut about 1 1/2" off of the output shaft and shortened the coupler about as much. With the lock ring about 1/4" away from the rear seal of the reverser the inside of the coupler was about flush with the end of the shaft. About all I could do with everything in place was slide the coupler far enough forward to just disengage from the pinion, it definitley wasn't user friendly. The only real plus was the fact that I never had to pull the tranny at the track.

 

Make damn sure you have at least .250 clearance between the output shaft and the pinion nut. And don't ask why I know this.

 

After re-reading, I realized that I might have been a little confusing. From output shaft to end of pinion was maybe 2-3", it was when the tranny coupler was slid forward all the way there was about 1/4" space between it and the pinion coupler, without sliding the engine forward in the saddles. Remember , I'm operating on memory, and I can tell you it "ain't" that good anymore...

 

No not really, trashed some reverser parts and made a fool out of ourselves.

 

We run a 3 speed lencodrive in our car with a Trick Titanium Can.
From the face of the can to the face of the midplate is 7.240
Tranny is 24.843 from tip of the tail shaft to the face.
(Tranny 24.843) + (Can 7.240) = 32.083
32.083 - (minus) one section (which is 6.250) = 25.833 (you did say a 2 speed)
So your overall length from your midplate to the tail shaft will be 25.833" or 25 13/16" heavy
These measurements are taken right off my car, hope this helps you out some.
P.S. Call Marty Chance (Neil Chance Converters) for your converter

 

Thanks Lorenzo,
It needs to be as short as possible obviously. The B&J tranny is short (5.5" for the 2 speed pack + reverser on top of that).
Edited:
We now know the B&J doesn't couple up to the BrunoDrive.

 

Converter drive deal

For the guys that contacted us that want to know also:
The B&J trans does not bolt up to a BrunoDrive converter unit.
Nor does the Rob Moore short reverser bolt up to a B&J or Lenco trans.
Options are:
-LencoDrive complete (all Lenco deal)
-BrunoDrive converter unit with Lenco trans/reverser (shorter than LencoDrive, just)
-B&J trans/reverser/ and their 'QuickDrive' converter unit (all B&J deal)

I'll post when we have exact dimensions of each for those asking too.