Tuff auto conversion

[mic_77]

The standard flexplate needs to be reinforced even without a transbrake I can arrange for them to be done on an exchange bases using a laser cut plate.


cheers Mic

[S1GMARE]

Sweet.
Jizzed in my pants
I think I will go the 904.

[mic_77]

1300 installed for a transbrake on baby 904 S1GMARE!

Does that include rollerising the box.


cheers Mic

[COBWBS]

my flex plate is done..


Im not getting a transbrake.


as for rollerising the box i have no idea.

Maby.

[karl_2ltgc]

Talk to me about baby 904's, what work do they need? Ratios ok?

[sigmare]

Talk to me about baby 904's, what work do they need? Ratios ok?

So far its been good (apart from mincing the ring gear) Its full manual and shifts really smooth. The stall (about 2800rpm) is spot on for drivability. Even with a T04Z it stalls no problem which is why i mention earlier that theres no need for a trans brake.

[mic_77]

I will let you know how much power they can handle this afternoon.


cheers Mic

[COBWBS]

I will let you know how much power they can handle this afternoon.


cheers Mic

Im awaiting the news..

[mic_77]

370hp@wheels injectors were not big enough to go any further but will go to 400 no sweat once I change the injectors.


cheers mic

[tandanus]

370hp@wheels injectors were not big enough to go any further but will go to 400 no sweat once I change the injectors.
cheers mic

Impressive.....
T.

[mic_77]

Not bad for E85 at a $1 a litre hey.


cheers Mic

[81GL]

Nice

Curiosity... but what injectors are in there at the moment?

[COBWBS]

370 HP wats that good for down the track if it hooks up?

Scott

[mic_77]

880cc and all being good it should see a 10.8 in theory good news is it has done a pb on drag radials of 11.22@118 with a slow 1.65 60ft.


cheers Mic

[mic_77]

At scutineering it weighed 1109kg so it is no feather weight yet we have a few things to get rid off and replace the heavy recaro's with some velo buckets should be able to drop 150kg out of it as it is in full street trim heater and everything.


cheers Mic

[psshhhht]

what's the difference between the 3 speed auto from a sigma and that from a Scorpion?
Also what kw/nm would a Sigma auto be able to handle?
I'm starting to think about keeping the auto in my GH after all lol

[S1GMARE]

what's the difference between the 3 speed auto from a sigma and that from a Scorpion?
Also what kw/nm would a Sigma auto be able to handle?
I'm starting to think about keeping the auto in my GH after all lol

The Sigmas have a Borg Warner autos and the Scorpions have (baby) Torqueflite 904.
I had a BW built with firmer shifts by Kewish Autos (Dandenong VIC), locked diff and about 100kwatw. I was very reliable. Use a good tranny cooler.
The 904's have more options to build it strong, shift kits, manual valve body and I've even heard trans brake.

[psshhhht]

ok, cool thanks for that... I'm so so so tempted to stick with the auto for my GH and keep it a street car, but I can pick up a 2.6L and b/w 5 speed for next to nothing, so bang for buck it's probably more appealing.. hmmmmm

[panda]

ok, cool thanks for that... I'm so so so tempted to stick with the auto for my GH and keep it a street car, but I can pick up a 2.6L and b/w 5 speed for next to nothing, so bang for buck it's probably more appealing.. hmmmmm

Yep, smart way to go. Keep your eyes open for a motor/gearbox combo. Its a lot easier than stuffing around trying to match up wide blocks & narrow blocks.

[S1GMARE]

Save your money. Keep it auto and you won't be breaking diffs. And if you get a BW 5 speed, get used to changing gears with your finger inside the gearbox. The shifters love poping out of those boxes.

[COBWBS]

So S1GMARE


When we goin to center road to pull out a auto 4 u mate.

Buy this stage paul has jst abot figured out the conversion hands down!!

Idealy u will buy a narrow block and put ur pistons in it?

Or do a dodgy like me a drill the holes? ( Crap idea )

Thick flax plate, real good bolts.
No worries!!

[S1GMARE]

Will go as soon as it stops raining. Still tossing up between a c4 and the baby T/F.
Pauls converter bolts keep coming loose.

[S1GMARE]

I forgot to ask. If MRGASD reads this, can u p.m me about that c4 adaptor?
Cheers

[mic_77]

Converter bolts coming loose is normally from poor alignment and not using loctite. If anyone is interested my 904 will be up for sale very soon as I am going witha trans braked c4.


cheers Mic

[sigmare]

Converter bolts coming loose is normally from poor alignment and not using loctite. If anyone is interested my 904 will be up for sale very soon as I am going witha trans braked c4.


cheers Mic

what could be out of alignment? and ive used loctite

[mic_77]

The locator for the converter that go's into the crank may be to loose, could have the wrong sized bolts on the flexplate, adaptor not drilled 100%, converter runout the list go's on. It is a pain in the arse to figure out good luck.


cheers Mic

[S1GMARE]

I have decided to use the Baby T/F 904. Got all the bits I need this morning with sigmare.
mic_77, how can I get in contact with you about organising a flywheel.
I'm in S.E. Melbourne.

Thanks to all that contibuted to this post.

[psshhhht]

how's the baby 904 going?

Also what would i need to do to a standard GE b/w 3 spd to get it to shift quicker/crisper, and/or how much would it likely cost to get it manualised?

what would be a good stall speed for a fairly standard 2.6, or maybe EFId?

[S1GMARE]

I haven't built the auto yet.
As for the BW. Any transmission joint can build you an auto with harder shifts. I'm not sure if you can actually manualise the BW35.

[webby]

Auto's are for people who can't turn corners