Four Wheel Drive?
Four Wheel Drive?
Author
Discussion

crafty

Original Poster:

2,291 posts

266 months

Saturday 15th December 2007
quotequote all
... I wonder.....


Pilot Pete

670 posts

247 months

Saturday 15th December 2007
quotequote all
Grant,
Lay off the Egg foo yong mate, it's affecting you.

smile

k wright

1,039 posts

288 months

Saturday 15th December 2007
quotequote all
You lost me at "chain drive". I'm thinking that the motor that Jeff sent you have too much power for those puny 335 rear tires.

crafty

Original Poster:

2,291 posts

266 months

Saturday 15th December 2007
quotequote all
Sorry..... I didnt mean chain-drive all the way to the front, it was chain drive to connect the output shaft to the shaft running forward. Needn't be a chain connection, could be a transfer case with gears.

Main thoughts were> (starting from the front)

Front diff where the battery is (brakes may also be able to be moved inboard?)
Shaft running between the seats.
Shaft down side of engine.
Chain (or transfer case) to connect to the output shaft on the C4 transaxle. (which would be facing rearwards)


Maybe I had too much red wine last night?

simonrockman

7,119 posts

284 months

Saturday 15th December 2007
quotequote all
Z-cars built a twin-engined 4WD ultima

gtr-gaz

5,281 posts

275 months

Saturday 15th December 2007
quotequote all
simonrockman said:
Z-cars built a twin-engined 4WD ultima
....which nobody has seen run.

LuckyP

6,243 posts

254 months

Saturday 15th December 2007
quotequote all
crafty said:
... I wonder.....
Why? yuck

I think the handling is neutral enough on the limit, ooodles of oversteer when prompted and then just a tad of understeer as you kiss the exit kerb. What would 4wd do?

You've done the C4/C2 thing right?

Pete

Edited by LuckyP on Saturday 15th December 10:49

donkeasy

636 posts

251 months

Saturday 15th December 2007
quotequote all
If you are interested:

The Gallardo/R8 gearbox is still in the house.



andygtt

8,345 posts

293 months

Saturday 15th December 2007
quotequote all
I need to nip down to HK and show you the light (I am in Shanghai at the moment), you'd be adding quite a bit of weight and cost for almost no gain and I can't see why you'd need it.

Get the car set up by an expert (I learned this after I sold the car) as this will make a much bigger difference.

If you really want to make the car handle a lot better, redesign the chassis with longer wishbones and inboard suspension.... wont be cheap tho unless you sell up and start from scratch.

bluesatin

3,115 posts

301 months

Saturday 15th December 2007
quotequote all
I am not sure about the handling on this canam Andy! I think it lost something 10 minutes latter!

andygtt

8,345 posts

293 months

Saturday 15th December 2007
quotequote all
lol cool pic, will have to add it to the collection as I havn't seen it before.

crafty

Original Poster:

2,291 posts

266 months

Sunday 16th December 2007
quotequote all
andygtt said:
I need to nip down to HK and show you the light (I am in Shanghai at the moment), you'd be adding quite a bit of weight and cost for almost no gain and I can't see why you'd need it.

Get the car set up by an expert (I learned this after I sold the car) as this will make a much bigger difference.

If you really want to make the car handle a lot better, redesign the chassis with longer wishbones and inboard suspension.... wont be cheap tho unless you sell up and start from scratch.
Ahh... Shanghai. Fun place. The nightlife is spectacular.

The 4wd thing was just a thought... not doing it to the GTR, but contemplating my next build. Not sure exactly what it will be but a few things are stuck in my head... Scratch Built, Audi V8, 4wd, alloy body.

Im trying to gauge interest here to start a "car builder's / restorer's club". The idea is to rent a factory unit and fit it out with all the cool tools. Big stuff like hoists, compressors, welding stuff, english wheel, brake press etc will be communal, each member has a lockup for handtools. We'll get specialists is to do seminars on various trades. Space here in HK is at a premium and I am one of the lucky (very) few to have a garage at hom e that I can build a car in, most people only have a parking space and are not allowed to work on cars there. This, combined with the fact that most of the people into cars here are loaded and wont mind the expense may just work out. I dont have the room for a scratch built at home, but if I can get this idea off the ground that's what I'm gonna do.



kingb

1,166 posts

255 months

Sunday 16th December 2007
quotequote all
bluesatin said:
I am not sure about the handling on this canam Andy! I think it lost something 10 minutes latter!
its already lost something from the rear end

i guess its a high speed run then

chuntington101

5,733 posts

265 months

Monday 17th December 2007
quotequote all
it could work on paper.

you would need to use the Turbo 4WD box and then mate a transfer case onto the back (some guys wled them on!). then you are still going to have a hell of a lot of prop shaft to run the te front of the car!

an alternative might be swing the wqhole thing around, dump the Porsche box and run a T56 with a transfercase. if you could get it to run down the pass side it would intrue less. then you could run the prop back to the rear diff and the front on to the front diff. also with this idea you might want to move the engine back a bit, give you a little more room then.

just my opinions though.

CHris.

ezakimak

1,871 posts

265 months

Monday 17th December 2007
quotequote all
Front mount the gear box, and leave room out the back for turbos, radiators and intercoolers. Less chance of heating up the interior, but you will have to work out how to cool it properly while maintaining low drag.






crafty

Original Poster:

2,291 posts

266 months

Monday 17th December 2007
quotequote all
chuntington101 said:
an alternative might be swing the wqhole thing around, dump the Porsche box and run a T56 with a transfercase. if you could get it to run down the pass side it would intrue less. then you could run the prop back to the rear diff and the front on to the front diff. also with this idea you might want to move the engine back a bit, give you a little more room then.
???? - I hope you were not talking about this for an Ultima, in order to put a diff behind the engine you'd need to push the engine forward, then you'd be sitting on the gearbox....

ezakimak said:
stuff
What's the picture of? - no good for the Ultima but might be for the next project.

crafty

Original Poster:

2,291 posts

266 months

Monday 17th December 2007
quotequote all
... ahh... Nissan GTR

ezakimak

1,871 posts

265 months

Monday 17th December 2007
quotequote all
crafty said:
... ahh... Nissan GTR
yep, tempting - i can see the cogs spining in your head right now
smile

If they got the old 2.6 litre gtr’s running into the 8s down the ¼ with street legal radials, imagine what they will get the new 3.5litre engine to do.

Edited by ezakimak on Monday 17th December 08:19

crafty

Original Poster:

2,291 posts

266 months

Monday 17th December 2007
quotequote all
... always wondered why nobody's built a kit around the Nissan GTR - I suppose parts are a little expensive.

Im very partial to the Audi stuff.

But I do like the weight distribution on the Nissan...mmm

Edited by crafty on Monday 17th December 08:28

ezakimak

1,871 posts

265 months

Monday 17th December 2007
quotequote all
Given the number of people that will inevitably end up modifying these, it will only be a mater of time before there are sequential mechanisms for the box, and dog gears as well.

I would expect that the gearbox from a Nissan GTR to come in at around the same price as the equivalent aged Porsche boxes being used if not less. In Australia GTR stuff would be a lot cheaper than Porsche stuff and more readily available. A complete un-complianced 89 gtr would be around $9K AUS, you might even be able to pick one up when you come down in march for the F1GP.

Someone in Japan did do a mid engine version of the gtr, using the layout suggested a couple of years back. Maybe Google is your friend.




Edited by ezakimak on Monday 17th December 08:49