rediculous idea, (longitudinal) awd CA

[tyrannix]

a GTR has a longitudinal AWD drivetrain, like a truck, whereas most every other car (that i can think of) has a transverse AWD layout

so either CA or RB could be made awd with a skyline transfer case (or is it part of the transmission?)if thats the caese, then a CA bellhousing could mate to the RB transmission... a custom driveshaft will probably be needed to the rear diff, but then theres the front diff/halfshaftsthis is all pretty much common sense

but then the question.. a GTR crossmember ... would it need extensive modification, bolt right up, or would just fabbing one be easier?

in any case, then the gtr hubs/knuckles would probably have to be used. if that all gets done, then i think you could use a set of struts or coilovers for a skyline (im thinking r31 or 32 onto an s13 body ... if i were going to build an s14, id use an RB)

any input, tell me im wrong and how it would really work etc.

either an AWD S-body or a hatchi (normal FR) is going to be my next project.

just starting to gather info now

(and if i do an RB, im going to *DO* an rb... with a rb30e block from austrailia, with either a 25 or 26 head.... and a lot of light body parts in the front and extra ballast in the back to rebalance it

[81na ZX]

What about a GM-ish transmission, custom bellhousing and one of a ton of commercial transfer cases?

If you really felt up to it, a R200, custome mount and cutsom offset driveshafts...

[8ggalant]

what about weight...all that stuff w/ the ca's 250ish hp (lightly modded)...i dunno but if thats what floats yer boat

[btustison]

The GTR transmission is bigger and larger than the standard T-5 transmission that rb20, sr, CA and KA use, so I don't think you could build that hybrid...What you can do is build an AWD S13 using a proper RB20, 26, or 28, and the GTR drivetrain parts. We built one, but it has been subjected to a lot of "prototype abuse" and we currently have a new car under construction. When the web site is done there will be videos

[Dattebayo]

The skyline front part of the AWD is actually part of the motor located in the oilpan. great idea, but other sources would be needed...

[sdtouge]

sti is same way

[float_6969]

I've seen an AWD setup from a R34 in an S13, but just once, and it was on eBay. I will work mechanically, but, as always, the wiring was a headache, and the guy gave up.

[themadscientist]

the RB26 transmission is not likely to bolt on to the CA, the FJ yes The RB20 can't make the 4WD worth it so I would doubt that the more torque-challenged CA would do much. Then there is the whole front diff mounting problem.

[tyrannix]

realistically, the only problems im seeing is the front diff and how the halfshafts will connect to the front hubsnothing is solid yet, im trying to get ideas now

but if i do a custom awd, it will be longitudinal, not transverse (unless i were to do an awd pulsar project)

low down torque should be no problem for the frankenstein rb30det(t) that i have planned... and it may be that the gtr transmission wont bolt onto a CA bellhousing, then it will probaby just go with the frankenstein engine.. its kinda too bad im in the midle of the silvia project now, there was (is?) a gtr rb25 or 26 with awd transmission on ebay for around 3000

but i havnt given up on it yet.. still have some research to do, i would have the only AWD s13 ... and for it i can use the extra block and head i have, and really do up the engine (more then the one im using now.. its got honed cylinders, balanced and polished rotating assembly, and of course all new bearings and rings, with arp head studs and a tomei 1.5mm head gasket and all new seals and gaskets throughout...for this one, i would bore it out to at least a 2 ltr, maybe even resleeve it, tomei or jun pistons, shot pene the rods and crank, 5 way valve job with all the crazy valvetrain hardware (with beastly stiff springs) those insane 272 cams, and stick it on a flow bench and a 2mm head gasket that might get me usable power into the 10000 rpm range and a little more torque down low

and engine like that might even benefit from a dual turbo setup... but an unconventional one.... your quick turbo in the normal location on a manifold, with a big external wastegate, and then a big rear mount turbo, that would reduce lag as well, if the big turbo fed the smaller turbo then the intercooler

... well. ive got more research to do on this, if transmissions will even be compatible (fabbing a bellhousing is out of my hands.. a crossmember i could probably do)

[fraz]

here is a pic of a nissan skyline r32 gts-4 awd sump.Over here they come in rb20det/rb25det/rb26dett awd.

You can see the sump is significantly stronger than a regular tin sump as found on a rwd RB or any CA engine

[fraz]

low down torque should be no problem for the frankenstein rb30det(t) that i have planned... and it may be that the gtr transmission wont bolt onto a CA bellhousing, then it will probaby just go with the frankenstein engine.. its kinda too bad im in the midle of the silvia project now, there was (is?) a gtr rb25 or 26 with awd transmission on ebay for around 3000

RB30DE/DET is easy to build. My flatmate built one over the past 2 weeks.He used a rb30e block, new factory rings and bearings, rb25de head/intake/oil pump/timing belt tensioners, audi timing belt, rb20det exh manifold (same as rb25det)

It cost him 100 for the rb30, 200 for the rb25 head/intake/water hoses etcand around 700 for rings/bearings/oil pump. He said it owes him $1400 NZ including his time at $20 an hour.

... well. ive got more research to do on this, if transmissions will even be compatible (fabbing a bellhousing is out of my hands.. a crossmember i could probably do)

I have heard that the CA bellhousing will bolt to the rb20de/det gearbox. You could get an awd rb20det box and put the ca bellhousing onto it.

[tyrannix]

did he use the stock RB30E crank, rods and pistons?

and it will cost a tad more here (US), as i have to import all the parts. wasnt the RB30 only produced in Austrailia and New Zealand markets?

[fraz]

yea, stock bottom end, gave it a hone and fitted turbo rings, and new big end bearings.

the stock rods are god for 350 kw at the wheels. Have a look for a diy rb30det guide on the net. the guy made 649hp on a stock bottom end with an early rb25 head. The later series 2 r33 head has vvt and is good for another 100hp on exactly the same setup.

There is a guy in nz running 10sec flat with a rb30 using early rb25 head and rb20det turbo manifold in a awd gts-t skyline on a stock bottom end and no head work

[MinisterofDOOM]

a GTR has a longitudinal AWD drivetrain, like a truck, whereas most every other car (that i can think of) has a transverse AWD layout

Actually, VERY few AWD setups are transverse--it's really a fairly "new" thing. Transverse engine an extremely stupid way to do an AWD setup--grossly inefficient, and basically a waste of energy. It's only used in wierdo AWD versions of existing FWD cars, like the EVO, and in honda's, because they're too stupid to see the benefit of longitudinal setups. Cars taht were designed to be AWD from the start are almost always (unless it's honda--the only manufacturer in the world who is too stubborn and to use longitudinal layouts OR V8s except in limited run cars...) longitudinal.Ten years ago, the mere suggestion of a transverse AWD car would have had an engineer laughed out of a company.

[81na ZX]

Actually, VERY few AWD setups are transverse--it's really a fairly "new" thing. Transverse engine an extremely stupid way to do an AWD setup--grossly inefficient, and basically a waste of energy. It's only used in wierdo AWD versions of existing FWD cars, like the EVO, and in honda's, because they're too stupid to see the benefit of longitudinal setups. Cars taht were designed to be AWD from the start are almost always (unless it's honda--the only manufacturer in the world who is too stubborn and to use longitudinal layouts OR V8s except in limited run cars...) longitudinal.Ten years ago, the mere suggestion of a transverse AWD car would have had an engineer laughed out of a company.

Transverse AWD setups have been around sence the early/mid 80s atleast. Mitsubishi for example.

For one simple reason - cost. Transverse setups are cheaper to build than longitudinal setups. If you were the engineer who suggested a transverse AWD car to sell at the same price as a longitudinal AWD car, youd get a nice hefty promotion