Page Loading... please wait!


This message not going away?
Ensure Javascript is on and click the box
Unregistered? Register for a user account. Home :: Downloads :: Submit News :: Reviews :: FAQ   

Online

There are 55 unlogged users and 2 registered users online.

You can log-in or register for a user account here.

Languages

Preferred language:



Post new topic   Reply to topic
View previous topic Printable version Log in to check your private messages View next topic
Author Message
dleachOffline
Post subject:   PostPosted: Dec 31, 2011 - 03:33 PM
KitCentral Fellow


Joined: Sep 28, 2008
Posts: 837
Location: Fair Oaks, California
Status: Offline
Typically, the output shafts are on the right side of the drive train. If the drive train is turned around then the output shafts are on the left (driver's) side of the car. Correct? Is this a problem? Doesn't Lamborghini have a detent in the oil pan for the rear driveshaft? The 4wd's I have seen (admittedly not very many) only have the front (now to be the rear) shaft offset. But the purpose of the front shaft offset is to clear the engine so, that works. It seems it would work better than a marine v-drive and possibly take less longitudinal space but, only if there is room for the offset in the tunnel. Intriguing!

Don
Building a 6.0
 
 View user's profile Send private message  
Reply with quote Back to top
bartmanOffline
Post subject:   PostPosted: Jan 01, 2012 - 03:14 AM
KitCentral Fellow


Joined: Jun 21, 2005
Posts: 220

Status: Offline
I typed two paragraphs and this thing wouldn't post it??

Anyway, an abreviated version because I'm kind of short on time now.

small block chevy mated to a 5sp from a camaro to a NP205. The long version explained how we had built a mud/sand drag truck for a customer with the engine relocated to the bed as mid engine. We then decided to try it for a lambo customer who did not want an adaptor and transaxle set up. We initially was trying to make it all wheel drive but customer did not want it that complicated. And it is complicated to do AWD due to different wheel circumferences front to rear and front to rear biasing for AWD. So, we dropped the front diff and put the divorced transfer case there. One drive shaft from the tranny to the NP305 and a three piece back to the diff. The project died with the housing industry, our customer was a realestate developer. Chassis was sold as a bare chassis several years ago and the SBC ended up in a '52 Chev 5 window pickup.

RT wrote:
Bartman,
Good solution.
What unit did you use?
How did you make the connections between the transmission, transfer case, and rear differential?
Any pictures?

RT
 
 View user's profile Send private message  
Reply with quote Back to top
bartmanOffline
Post subject:   PostPosted: Jan 01, 2012 - 03:17 AM
KitCentral Fellow


Joined: Jun 21, 2005
Posts: 220

Status: Offline
dleach wrote:
Typically, the output shafts are on the right side of the drive train. If the drive train is turned around then the output shafts are on the left (driver's) side of the car. Correct? Is this a problem? Doesn't Lamborghini have a detent in the oil pan for the rear driveshaft? The 4wd's I have seen (admittedly not very many) only have the front (now to be the rear) shaft offset. But the purpose of the front shaft offset is to clear the engine so, that works. It seems it would work better than a marine v-drive and possibly take less longitudinal space but, only if there is room for the offset in the tunnel. Intriguing!

Don
Building a 6.0


"Divorcing" the transfer case allows you to space it how ever you need. In our mock up, we put it all the way up front where the front diff would be. we did that so it would not take up foot space.
 
 View user's profile Send private message  
Reply with quote Back to top
wire2Offline
Post subject:   PostPosted: Jan 01, 2012 - 03:32 PM
KitCentral Fellow


Joined: Feb 15, 2005
Posts: 307
Location: Milton, ON, Canada
Status: Offline
RT wrote:
A typical 4wd has the transfer case feeding front and rear differentials. The rear differential input faces forward and the front differential input faces rearward. With the driveshaft turning the same direction the front differential has to make those wheels run "backwards" to drive forwards. Those differentials are offset to clear the engine also. So, if you turn the entire drive train around, put the front differential at the rear. The offset should work out for you and the differential will turn the correct way.
......

RT

True, a front diff will turn "backwards" to drive the car forward. By putting it in the rear of a chassis you've turned it 180° so now it will drive the car backwards.
 
 View user's profile Send private message Visit poster's website  
Reply with quote Back to top
arklanOffline
Post subject:   PostPosted: Dec 31, 2012 - 02:58 PM
Junior Member


Joined: Dec 25, 2012
Posts: 5

Status: Offline
was doing some research on transfer cases and it seems they lock the front and rear diffs...
so to the people who said they had a go at making it awd with a transfer case how did they get past the front and rear diffs being locked together when it comes to going around corners?
 
 View user's profile Send private message  
Reply with quote Back to top
AdrianBurtonOffline
Post subject:   PostPosted: Dec 31, 2012 - 10:52 PM
KitCentral Fellow


Joined: Jul 22, 2003
Posts: 1754
Location: Mooresville, NC
Status: Offline
wire2 wrote:
RT wrote:
A typical 4wd has the transfer case feeding front and rear differentials. The rear differential input faces forward and the front differential input faces rearward. With the driveshaft turning the same direction the front differential has to make those wheels run "backwards" to drive forwards. Those differentials are offset to clear the engine also. So, if you turn the entire drive train around, put the front differential at the rear. The offset should work out for you and the differential will turn the correct way.
......

RT

True, a front diff will turn "backwards" to drive the car forward. By putting it in the rear of a chassis you've turned it 180° so now it will drive the car backwards.


You can also flip the diffs and have the car go fwd

_________________
Now building in Mooresville NC
http://www.flickr.com/photos/adrianburton
http://profile.imageshack.us/user/AdrianBurton
http://s997.photobucket.com/albums/af91/AdrianBurton/
 
 View user's profile Send private message Send e-mail Visit poster's website  
Reply with quote Back to top
EAMartinOffline
Post subject:   PostPosted: Jan 01, 2013 - 07:51 PM
KitCentral Fellow


Joined: Jan 04, 2008
Posts: 298

Status: Offline
arklan wrote:
was doing some research on transfer cases and it seems they lock the front and rear diffs...
so to the people who said they had a go at making it awd with a transfer case how did they get past the front and rear diffs being locked together when it comes to going around corners?


Most all-wheel-drive or full time 4 wheel trucks have a "differential" or viscous couple built into the transfer case to allow for this. When you want actual 4 wheel drive there is a electrically operated lock that is engaged, usually with a switch or button on the dash. It gets more complicated in a car where it is likely that there will be a difference in the front and rear tire diameters. In that case it would probably be necessary to have different gear ratios in the differentials.
 
 View user's profile Send private message  
Reply with quote Back to top
arklanOffline
Post subject:   PostPosted: Jan 03, 2013 - 04:00 PM
Junior Member


Joined: Dec 25, 2012
Posts: 5

Status: Offline
im with bartmans customer, too complicated.
easier to just use a transfer case to the back wheels only
 
 View user's profile Send private message  
Reply with quote Back to top
jaredclawsonOffline
Post subject:   PostPosted: Feb 27, 2013 - 05:23 AM
Member


Joined: Jun 02, 2011
Posts: 28
Location: St George, UT
Status: Offline
I am also bulding my replica Diablo with a v-drive setup. I have a BMW V12, but thats all for the drive train so far. What donor vehicles come with this divorced transfer case mentioned above? I would like to go to the salvage yard and take some measurements.
 
 View user's profile Send private message  
Reply with quote Back to top
Display posts from previous:     
Jump to:  
All times are GMT - 8 Hours
Post new topic   Reply to topic
View previous topic Printable version Log in to check your private messages View next topic
Powered by PNphpBB2 © 2003-2006 The PNphpBB Group
Credits
 
Page created in 0.26940298080444 seconds.