ma70 is the name of the 86.5-92 supra chassis. It is also the vin code for the NA. MA71 is the vin code for the turbo, but the firewall is still stamped ma70

Which is more desirable? that's a debate that has been waged for years (NA vs T). For SCCA autocross and road racing, the NA gets the nod. For reliability, the NA. For power, the turbo. For general street appeal -- the turbo


edit: actually A70 is the name of the chassis, the "M" is for the m-series block. so the 1jz is a jzA70, and I assume the 1g-gte is gA70

Toyota is pretty consistant in the naming of their chassis. For example the E86 chassis has the 4A-GE in it so its known as the AE86. The W20 chassis has a 3s-gte in it, so its a SW20. The A67 chassis has a 5m-ge in it, so its a MA67....

 

The way I heard it was the A70 was supposed to be all NA cars, and the A71 was supposed to be all turbos, but because of more demand for turbos they used chasis stamped A70 for use with turbos.

I don't know if this is confirmed or not though.

 

yes jeff you are correct, infact the A70 and A71 are identical, the only diffrence between them was that the 70 was supposed to be NA and the 71 was suppopsed to be turbo, but because of the demand for the turbo model and the lack of demand for the NA model, left many MA chassis unused. so toyota just stuck the 7M-GTE in the MA70 insted of the MA71

 

i'm wondering however, how do you tell if you truly have a 71 chassis on your turbo, instead of a turbo blocked shoved into a NA chassis and stamped as MA71...

 

Look at the identification tag, it will say EMA70xxxxx..... or EMA71xxxx......

 

edit: actually A70 is the name of the chassis, the "M" is for the m-series block. so the 1jz is a jzA70, and I assume the 1g-gte is gA70....

This is correct, here is a great link that explains the differces in the A70's.
http://www.tigersport.freeserve.co.uk/supras main.htm

 

so if u have a turbo 71 (like i found on mine) then u got the original turbos, and if you have a "stock" 70 turbo then you have one that was made to fulfil demand.... do you still have the limited slip and all the other turbo stuff as well?

 

there is literally no difference between the 70 and 71 turbos, other than that plate.

 

Could one technically sell for more since it was an "original"

just wondering`

 

I imagine a MA71 would be worth slightly more to a Supra purist.

 

ma71supraturbo is correct, all chassis's are A70. You guys are either looking at the data tag or the VIN, in which case the "MA7x" is simply refering to the engine inside the car. Turbo and N/A chassis are completely identical in every way because they are the same chassis.

 

The chassis code stamped on the bulkhead, i'd always thought there was some '71's and mostly '70's. Thats what i read somewhere, could be and probably wrong

 

The chassis code stamped on the bulkhead, i'd always thought there was some '71's and mostly '70's. Thats what i read somewhere, could be and probably wrong

I dunno. I'm not sure whats on the firewall of the jza80's na and turbo. MK1 mr2's are "aw11" even though the vin on the supercharged says aw16. And I think all rwd corolla's in the gts body style are stamped AE86 even though the carbed version is the ae85


http://ourworld.compuserve.com/homepages/stepho/oldcodes.htm

Supra: (x)xAxx
Mr2: (x)xWxx
Celica: (x)xTxx
Starlet: xPxx

Camry: xVxx
Cressida: xXxx

the () are because the later toyota engines have 2-letters in the name (jz instead of M, zz instead of A)

Edit: the RWD celica was xAxx like the supra -- interesting...

 

All the MK3's I've seen have MA70 stamped into them. I have yet to see anyone prove there are MA71 chassis's out there.

 

can anyone in UK or japan confirm this? I wonder if a 1jz mk3 would have "m" on its chassis

 

1JZ and 1G in Japan

they were designated as "JZA70 Supra" for 1JZ and "GA70 Supra" for 1G. Now can everyone figure it out? "M"A70 Supra for 7"M"

 

this i know, read my previous post. but does the chassis say "MA70" on the firewall?

 

All the MK3's I've seen have MA70 stamped into them. I have yet to see anyone prove there are MA71 chassis's out there.

I think I remember Reg Reimer saying something about 71's.

 

All the MK3's I've seen have MA70 stamped into them. I have yet to see anyone prove there are MA71 chassis's out there.

I'll post a picture of mine tommorrow when I get off work.
This is just for you Bishop. lol

 

can anyone in UK or japan confirm this? I wonder if a 1jz mk3 would have "m" on its chassis

Yah that'd be interesting to see!

 

My chassis code starts MA70 on the firewall IIRC, been so long since i looked, ill ask my mate what his says as he's got a 1jz.

 

this should help:

http://www.mkiiitech.com/forums/viewtopic.php?t=27

 

Just had word from my mate, his 1jz starts with JZA70


Good page that dr j

 

heh, i try.

 

I'll post a picture of mine tommorrow when I get off work.
This is just for you Bishop. lol

I can't wait. I'm interested to see someone prove this