group a supra????

Mr.SelfDestruct

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May 27, 2005
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so I've wanted to ask this question for a while... what is it? was is a stock toyota car? what are the differences between it and the ma70, jza70, and ga70? just wanted to know more about our legendary machines...
 

SP 7M

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Apr 6, 2005
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supraman2251 said:
^I know that, and does anybody have any more info on the turbo A? what about the supra"R"
Sorry about that. I was in somewhat of a hurry when I read your first post.

The Turbo A has the 7M-GTEU which had a high-er flow version of the CT-26, I believe. That's about all I can come up with off the top of my head at the moment. I haven't taken much time to investigate the Turbo A yet since they're not available for purchase in the US.
 

aye mate

Hiatus over.
Mar 30, 2005
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Turbo A also did not have an afm. It ran off speed density is stock form. I believe it had a bigger intercooler, larger TB, and the 3000 is bigger and not labeled and yea the bigger turbo. Only 500 made in late 1988 but had what we know as the 89+ body and the Turbo A duct(derrrRR)
 

MA70Supra88

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Mar 31, 2005
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There is a buch of good info on DrJonez's forum, MKIIITech.
MA70 Turbo A- a homologation run of 500 cars for a Japanese road race series (not sure which one...),
7M-GTE equipped late '88 model (full '89+ body), sold only in Japan, black with black sawblades, grey leather interior, speed/density air metering (no AFM), larger/non-badged 3000 pipe, larger throttle body (65mm vs. stock 60mm, see rare parts forum), larger intercooler?, larger turbo (still baged CT-26, but compressor/turbine/housings are larger), Momo steering wheel/shift knob, front bumper duct (see post in rare parts forum), Turbo A badging (rear badge and 2 side door stickers)

MA70 Turbo S- a last ditch attempt by toyota to sell more 7M-GTE powered MKIIIs in late '89/early '90 in Japan, no real difference from the "normal" 7M powered MKIII, just the spiffy rear Turbo S badge

JZA70 R- R denoting the Recaro interior (black/grey seats and trim), Torsen differential (4.10 ratio in manual transmissioned cars, 3.91 in auto transmissioned cars), Bilstein struts and different springs, Momo steering wheel and shift knob, 2.5 R rear badge

http://www.mkiiitech.com/forums/viewtopic.php?t=219
 

Mr.SelfDestruct

I build planes... yeah...
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mkIIIman089 said:
Sry if this is rude... but if you knew why'd you ask?

read more closely, I asked what was the difference between those variations of the a70 chassis, and the turbo a.

thanks everyone for the great info, I'm really learning a lot. keep it comin!
 

CassMori

Boost Addict
MA70Supra88 said:
There is a buch of good info on DrJonez's forum, MKIIITech.

JZA70 R- R denoting the Recaro interior (black/grey seats and trim), Torsen differential (4.10 ratio in manual transmissioned cars, 3.91 in auto transmissioned cars), Bilstein struts and different springs, Momo steering wheel and shift knob, 2.5 R rear badge


http://www.mkiiitech.com/forums/viewtopic.php?t=219

Can anyone confirm if the Bilstein struts/springs came only on the R model of the jza70?

edit: I've found that it seems the same suspension came on the Turbo A. But I still haven't found if it was on any other jza70 models.
 
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trydrew

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Nov 4, 2005
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Heres poor thought question for you...

Whats the difference between the narrowbody and widebody variants?

Drew
 

trydrew

Suprafied
Nov 4, 2005
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Yeh i figured that but i cant understand why and i guess i was mainly wondering where they took the extra width from. I looked at pics but couldnt pick out the difference. Must not have been looking hard enough. DOHH!! :icon_mad:
 

IJ.

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Mar 30, 2005
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I "think" and this is only my understanding is in Japan under a certain width costs less for on road costs so they made the narrow body 2 litre Mk3's.

If you get a shot from dead ahead or behind it's quite noticable!
 

Jeff Lange

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Dziuggy said:
2.0TT narowbody only until 88. 89+ wide body was optional

No 86 MK3's were widebody in Japan.

No 87-88 GA70's were widebody in Japan.

Starting in mid-87 (1/87) the MA70 GT Limited was introduced, it was widebody.

Starting in 89, all MA70's were widebody, and the GA70 had the widebody option (not sure which model(s) had it).

After 1990, the MA70 was dropped and the JZA70 was introduced, which was only available as widebody.

CassMori said:
Can anyone confirm if the Bilstein struts/springs came only on the R model of the jza70?

edit: I've found that it seems the same suspension came on the Turbo A. But I still haven't found if it was on any other jza70 models.

The Turbo A did not have special shocks, it had the same shocks as other non-TEMS equipped MA70's in Japan.

The Twin Turbo R was the only A70 that got the Bilstein shocks.
 

CassMori

Boost Addict
Jeff Lange said:
The Turbo A did not have special shocks, it had the same shocks as other non-TEMS equipped MA70's in Japan.

The Twin Turbo R was the only A70 that got the Bilstein shocks.

not that I'm doubting you Jeff, I was going from information I found here:
http://www.supraforums.com/forum/showthread.php?t=152439&highlight=group+turbo+bilstein
and here:
http://www.supraforums.com/forum/showthread.php?t=114118&highlight=group+turbo+bilstein

admittedly, those are fairly old threads, so more accurate information may have come to light. Regardless, you answered my main question :bigthumb: - I bought a rear subframe from a jza70 for the diff, and it had the Toyota Bilsteins on it, just wanted to be sure of what I was claiming :icon_mrgr
 

Jeff Lange

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I got my information from the parts catalog, heh. More accurate. A lot of what was said in that first thread especially is just not true at all.

The Turbo A's also did not have a special clutch, or larger cams, the valves are also the same. The diff is a different part number, but is still 3.73:1, not sure what changed there. The injectors are not larger either.

Turbo A's did have larger sway bars (same ones as the TT-R JZA70), and it had springs unique to the Turbo A, so they were upgraded.

They did have a larger intercooler.