about Crankshaft again

[filh]

I know this has been often discussed here , and I 'v searched in forums here .
But ,it's not very clear to me .
I'm in the same situation as my friend last months: Boken crankshaft at my last rally competition . It"was" a small one(13401-16010) : 40mm journals 18mm piston pins.
I'd like to fit the big one (13401-16020) 42/20 mm.
Which car should I look to find happyness?
Can I find small crankshaft in 7 ribs block ? Or do all 7 ribs contents big crankshaft?
I guess ae92 from year 91-92 would be the solution (here in Belgium of course ) but is it alternative on other Toyota Models : Carina , Avensis , Celica ( MR but so rare here) .
I of course need the rods and pistons too and probably the block.
7age is forbidden to me , as i'm must stay under 1600cc , following the competition rules
Thanks for your help
Phil

[jondee86]

Here is a rough guide lifted from Toyspeed.org.nz.....

1. Bluetop bigport 40mm crank 4age ae82/86
2. Redtop bigport 42mm crank 4age/ze strongest rods ae92 (early)
3. Redtop smallport 42mm crank 4age/ze strongest rods ae92 (late)
(some run later model rods from ae101)
4. Silvertop 20v/smallport ze 42mm crank strong rods ae101
5. Blacktop 20v 42mm crank weakest rods ae111

AFAIK you should always (99% of the time) find a 42mm crank
in a seven rib block. Apparently, there were a few engines built
with the 42mm crank in three rib blocks at the time of the change,
but they are RARE.

As a matter in interest, Toyota NZ circuit raced a couple of AE82GT
Corollas back in 1985-86. The engines had a habit of breaking cranks.
Crank life was said to be less than 10 hours at 8000 rpm.

Cheers... jondee86

[filh]

Thanks Jondee ,
My machinist used to prepare engine for the European Gt championship track , won by ae86(Fina sponsored, driver P.Fermine)) in the past .

He told me the same : small crank is to weak and He saw about 7 broken crankshaft , all small one .
That's why , as I'm forced to rebuild an engine for next season , I'll prefer to start with a big crank .
But here I think I can only find ae92GTi from year 90-91 . that's why I was asking if other Toyota models would fit ( no 20v imported here)
thanks
phil