Project Cosmo - Finished (nearly)

[2rismo]

B-Man gives no fark for manual tranny. B-Man leaves all the trannies to Beer Baron

[B-Man]

Yes, I've heard about Baron and his trannie fetish !

[88silhouette]

wow brendan this car should be a ripper!

[Beer Baron]

B-Man gives no fark for manual tranny. B-Man leaves all the trannies to Beer Baron

well as you know if it wasn't for my fascination with trannies we never would have met 2rismo.. or should I say delila? :)

[Kinks]

forget the trannies, that engine bay gives me a semi

ive been single for 24 years!

if only I could discount a 3 month error in judgement I'd have you beat by 2 years

[Blitz]

Fork me, that is going to be a ball tearer

[2rismo]

well as you know if it wasn't for my fascination with trannies we never would have met 2rismo.. or should I say delila?

It's Delihla

[Abo Bob]

Ordinarily I'd say Steve Butchard from BMS as he makes fully manualised, normal (forward) pattern, NO ELECTRONICS modifications to JATCO's. He makes a transbraked valvebody for them that is the shiznit.

I don't know how seriously you're going to want to drag race the car so unless you plan on putting slicks on it and turning into a rotary drag nut, I wouldn't bother with the transbrake.

You should make a call to MV Automatics in S.A. and speak to him about the manual valvebody he does for the JATCO's. If it's the 300ZX box, it's an RE403A. Exactly the same valvebody as a Skyline RE401A and in fact, most of the parts are interchangeable. (403 will handle more torque than a Skyline/WRX 401A but the larger components absorb more power. A reasonable trade-off in the circumstances.)

If Mike at MV can build you a box that is:

A/ Completely manualised

B/ Fitted out with tough steels, bands, clutches, etc

C/ Refurbished and re-bearinged (is that even a word?)

D/ Equipped with a converter of his manufacture

...then I'd say go with him for the box. He certainly knows his shit when it comes to JATCO's and although there isn't a transbrake option with his modified valvebody (i don't believe anyway) and the over drive (4th) gear will be a function of an electronic switch (possibly like it is now) it is almost certainly the best way to go about strengthening your box to handle what you're about to feed it.

Cheers,

Adrian

And there is a good chance you can get this to your door for under $3500.

What will be your redline bman? (Thinking about convertors)

[B-Man]

Around the 9,000-10,000 RPM mark

Found a bloke on AusRotary with a mad 20B Cosmo - he's ripping his engine out and putting it in a tube drag car - his tranny is for sale - it's an MV modded one with a 4200 RPM stally (maybe a bit to high for me as my boost will be on by 3000 RPM easy )

[2rismo]

Revving a 20B to 9-10krpm = entirely unnecessary.....

The big BIG hp 20B's only take them to 8500 most of the time.

[B-Man]

10K is a little over the top yeah. Just going on what the engine builders are telling me -

[Kinks]

get it built for 10 and rev it to 8.. better for longevity

[B-Man]

Oh hell yeah - it's built alright - did you see the rotor ? Nice machining around the lip - means good revs - bring it !

[Kinks]

none of this hopefully

[B-Man]

Nah - Boost will be low and cool - flow will be lots - this be good for rotors - esp apex seals -

Thinking of going 1.56 housing on the rear for even more of a good time

[2rismo]

get it built for 10 and rev it to 8.. better for longevity

x2

[B-Man]

1 week to go

I have a woody !

[lingeringsoul]

what exactly does the numbers stand for?

13b and 20b

i know one has two rotors and one has 3 rotors?? are they the displacement of the rotors?

[smasha]

what exactly does the numbers stand for?

13b and 20b

i know one has two rotors and one has 3 rotors?? are they the displacement of the rotors?

the engine displacement...

13 = 1.3L

20 = 2.0L

i could be talking out my arse tho

[B-Man]

^^^ yep that's it

654cc x 3 rotors = 1962cc