[damusto]

I'd like to talk about differences that may exist in ae86 family.
Everywhere where I go, I read about the AE86 as it was a very homogeneous model. Even in the"bible"that I have are no such distinction listed at all.
But we know that there were two variants of two bodies.
So I'm wondering what differences may be in aerodynamics or mass distribution between 2 and 3-door version, or and Levin and Trueno.
Did anyone of You wondered about it ?

I dont know if this is some kind of fortuity, but most rally cars are Levins when Trueno seems to dominate on the race track. This is my observation based on historical pictures.
Of course, this statistic may be flawed - I dont know what clipping of all I saw.
But it gravitated me to such considerations.
What do You think, I wonder. Have You have any data ? (hard numbers would be the best)

[oldeskewltoy]

MOSTLY the differences are trim, and lighting.




On the front there are a few different bits as well... Trueno has early/late distinction, but there are also slightly different front and rear end treatments.



There is also the AE85... this was powered by the 3AU(1487cc instead of 1587cc) and used a cable pull clutch, along with a different 5 speed transmission. Another difference was it used solid front rotors similar to the E7 chassis Corollas

[damusto]

Thanks for the quick reply.
Because I really hope that we can develop this topic.

So what You present, are the differences that we all can easily see.
Plus some which ware inside car too. About whom, by the way, is very good to be aware, I think.

The question is how all this translates onto aerodynamic drag ?
I expect noticeable differences between 2 and 3-door version.

Drag can be quite similar between Levin and Trueno I think.
But what if Trueno will open lights ? I expect drag increases is noticeably.
And weight distribution between 2 and 3-door version - I expect it should be different noticeable too.

[McKenney]

In America, we only got the Trueno front end. GTS models with the 4AGE and SR5 with the 4AC. GTS models were only available in a 5 speed manual, while the SR5 had an automatic option. Zenki models had one set of tail lights for the coupe and one for the hatchback model. Kouki got only one set per body style as well. Various interior options and various amenities were available across the board. Also, we only got them from 1984-1987. No early 1983 models for us. All were LHD.

And the SR5 models all had the 6.4" solid axle with an open differential with 4.10:1 gears and drum brakes. GTS models had the 6.7" diff, optional LSD, and disc brakes with 4.30:1 gears.

All US model SR5 cars had a VIN starting in JT2AE85/6, while the GTS started with JT2AE88.

Across all models options available were: power steering, air conditioning, cruise control, power windows, power mirrors. Power steering and Air conditioning were pretty standard in the cars sold in the southern US though(as people are lazy and it gets HOT here).

Also a lot of the 1987 GTS models had SR5 front seats with different headrests.

[damusto]

Thanks is good to know it all.
Therefore, we should have heavier US versions.
I'm very curious how it all translates into the numbers.

[damusto]

I'm very angry because my new service manual is worth nothing when it comes to ae86 ...

... going back to topic: When You get acquainted with this specification here:
http://www.aeu86.org/index/technical-ae8...topic=4815

We have:
Kerb weight: 950 kg (coupe), 970 kg (hatchback)

but weight distribution is constant here 53:47 (%) front:rear
and it seems to me that there should be some difference. Maybe small but I'd like to know that.
1 more I think that this weight is not exact. I reached for two different road tests, both from 1984 and both involving the 3-door version of Levin. Based on them the weight of car with all liquids except for fuel is 940,2 kg
I assume the weight of a full tank is ~37.4 kg so kerb weight should be 977.6 kg.

What do you think about this ?
Do You have any historical journal with 2-doors Levin version road tests ?
And both Trueno variants ?

[oldeskewltoy]

Road and Track test Feb 1985

[oldeskewltoy]

have you looked at the FIA paperwork???

http://www.bmsc.com.au/forums/attachment...-ae861.pdf
http://www.bmsc.com.au/forums/attachment...-ae862.pdf
http://www.bmsc.com.au/forums/attachment...-ae863.pdf
http://www.bmsc.com.au/forums/attachment...-ae864.pdf
http://www.bmsc.com.au/forums/attachment...-ae865.pdf

[damusto]

Cool, thanks a lot Oldeskewltoy.
I assume this is the US (better equipped) version because it achieves 1111,3 kg

And yes I read FIA papers - however since this is A group there is no individual vehicle weight.
There are general rules that say what is the minimum weight for the group, depending on the engine capacity.

[damusto]

btw 133.7 kg diffrence its a lot - this surprises me, its a bit hard to believe
We we should look at the equipment differences, it would be nice exclude this factor. This is getting interesting.