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Location:
sa
Registered:
June 2003
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ma70 with 1jz-gte
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Mon, 30 June 2003 02:36
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does anyone know the performance times i could expect from puttin a ijzgte in a manual ma70 supra with exhaust boost and filter mods only?
AND ALSO FOR THE 2JZ?
The reason being is iam tossing up whether to get an s20det silvia or a n/a supra and doin a conversion
thanks
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Location:
Sydney
Registered:
July 2002
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Re: ma70 with 1jz-gte
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Mon, 30 June 2003 02:50
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na supra will have a different gearbox/diff and may not be able to handle the power of a 1J or 2J.
Better off getting a JZA70 which has a 1J in it already. I've seen one in the tradingpost lately.
Performance times of a JZA70 with the usual mods should be maybe late 13s. Not totally sure. 2J should be less.
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Location:
sa
Registered:
June 2003
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Re: ma70 with 1jz-gte
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Mon, 30 June 2003 03:02
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how much is a jza70 worth then?
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Location:
Sydney
Registered:
July 2002
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Re: ma70 with 1jz-gte
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Mon, 30 June 2003 04:25
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Usually about 2-3 grand dearer than a MA70 Turbo.
Go to the tradingpost online and have a look for supra, then go through and see which has the 2.5L twin turbo
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Location:
Adelaide, SA
Registered:
May 2002
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Re: ma70 with 1jz-gte
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Mon, 30 June 2003 07:48
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It's not often you see a jza-70 in the SA trading post (but I haven't looked for a while)
Because I did the manual n/a MA-70 to 1jz powered MA-70 conversion 
You'd need a manual front cut, and there is a bit of work involved so you'll have to weigh up if you want to do all of that. There are a lot more parts/mods available in SA for the Silvia than for toyotas, but if you want something a bit rarer, probably faster, and more comfortable go the Supra.
The n/a manual has a LSD G285 diff (from memory) which has a 4.3:1 ratio. Mine has been going for a year with the 1jz (and R154 gearbox) without a hassle although I don't thrash it that often. I suspect it sometimes slips more than it limits too (and one black line is a bit darker than the other)
I haven't had it at the drags yet, and it runs virtually stock boost and airfilter, so I can't comment on the times you'd expect. It goes pretty damn hard though and will step sideways/lose traction when you hit second in a drag. Losing traction can be a bit of a problem overall!
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Location:
Adelaide, SA
Registered:
May 2002
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Re: ma70 with 1jz-gte
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Mon, 30 June 2003 07:50
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But if you want 2jz...I've heard there is a 2jz six speed front cut at jap-parts (www.jap-parts.com.au) on South Road. Whether it'll fit in the transmission tunnel is another story..
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Location:
Brisbane
Registered:
November 2002
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Re: ma70 with 1jz-gte
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Mon, 30 June 2003 10:32
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The 6sp will fit into the A70 tunnel with no major problems, slight mallet work and you'll be fine. A friend has one in his Supra. Goes well with the 2J.
There's nothing really wrong with a 7MGTE Supra as long as you get a good one. Not to mention them being a LOT cheaper.
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