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Location:
Launceston, Tasmania
Registered:
May 2002
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ma70 compared to ga70 supras???
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Mon, 24 November 2003 06:06
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my father is looking at importing a mkIII supra and we were wondering how the GA70 stacks up against the MA70? any help is greatly appreciated 
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 06:22
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Buy the GA70... you won't blow headgaskets every 5,000 k's then.
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Location:
Brisbane
Registered:
May 2002
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 06:41
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Yes, GA70's don't suffer from the chronic BHG problem. They do suffer from being slow though.
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 06:43
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And we come back to the performance reliability scale...
performance goes up, reliability goes down.
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Location:
Camden, NSW
Registered:
June 2002
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 07:30
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DONT BUY A GA70!!!!
You will be utterly disappointed. So its twin turbo u say... well drive one n see how slow they are! The MA70 isnt that quick either but moves along quite nicely. If u want power buy a JZA70. My pick would be the group a or JZA type R as they offer better 'package' for a little more $$$
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 08:04
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DONT buy a ga70!
BUy an ma70 and prevent the bhg problem! they're a lot stronger engine, with more potential. And most likely will be more reliable with good care and maintenance. l'll go back to the case of a friend of mine's ma70..its done 282km and he is pedantic about servicing it. It has never once blown a head gasket, spun a bearing or anything..not once!
IM trying to source a cheap n/a one that i can rebuild and look after for myself.
5,000km is a bit over the top vince! 
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 08:12
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Mine last 7000k's...
Albeit done buy a bunch of hicks using the standard gasket on standard bolts and 11psi.......
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 08:15
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even with that stated parts you mentioned, 11psi is easy to achieve from the stock hg/ bolts! It obviously wasnt done correctly! Dont let someone's poor mechanical work spoil a good engine you own!
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 08:15
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Sorry to all other 7M owners I may be offending, I'm just pissed off that I had the car a week and was bitten by the BHG!
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 08:23
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yeah we can understand that! They are NOT a bad engine though! I'm not a 7m owner yet, but it just shits me that everyone thinks they're crap because of bhg's! Im going to buy a supra regardless of whether or not it suffers bhg's..if you like a car be prepared to fix its problems! I spent $1400 paying someone doing up a new reco head on my 5me!! All because i knew nothing about cars, and just liked the car enough to have the old thing fixed...
Theres a lot of assholes out there who sell cars because they have a problem. I dont know, but it seems you may have been unlucky? 
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 08:36
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Apparently so... I will however say that for the small amount of time I had my car on the road it was beautiful, engine power delivery is smooth and strong and although I only did 170km's... it didn't appear to use too much fuel doing it.
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Location:
tas
Registered:
June 2002
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 09:12
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i second that. 7mgte's are good engines. the weak points have been sussed out. Tighten the headbolts and the 7MGTE will not let you down. I dunno why some ppl think it's only average in power. This is a turbo 6! head and shoulders above most cars on the road. Of course there is faster, but 7mgte's are more than quick enough at stock.
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 09:25
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They're rated at 180kw as standard... The BA inline 6 is rated at 180kw and they're non-turbo... Surely the turbo should more than make up for the extra litre of capacity.
I don't mean to come across as anti-7M, infact I am a strong believer in the 7M (why else would I have just bought one)... these are just some things I have been thinking about.
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 09:40
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a ba falcon motor is 2003 highly developed technology
a 7mgte is 1986 technology (admittedly very good)
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Location:
tas
Registered:
June 2002
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:01
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Yeah, I do understand that.
I dip my hat at Toyota for producing a turbo charged, intercooled, EFI, twin cam, multi valve inline 6 in the mid 80's...
I haven't really driven my car enough to really know what they are like, all I know is I bought my car and 170 k's later she's got a BHG, however, I am willing to spend the $1000+ on it because I am positive it's a great engine.
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:10
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get repco to do it. UNless you know someone you can trust to do it properly, get a chain company to fix it. Not a local garage/ petrol station.
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:14
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Getting my friends old work to do it, he did work experience there, and thinks their work is tops.
I'll get a quote from Repco though.
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:25
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Make sure u get a quote on a GENUINE toyota gasket
Or if you're wanting to work the engine hard in the future
Quote
A HKS MHG
all the work needing to be done to the block/ heads for this to work properly. Ask ed_ma61 about how to do this.
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:29
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It'll be getting a HKS metal head gasket, ARP bolts, the head completely checked out, skimmed, the block will be cleaned right down and it'll be torqued down at 75ft/lb's.
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:30
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if you're getting all that done by a shop, expect around $2000 as id want to get port work done to the head too!
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Location:
Brisbane
Registered:
July 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:42
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Nah, I won't be porting the head, I'm broke...
I didn't budget for $1000+ expenses 4 days after buying the car.
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Location:
Brisbane
Registered:
June 2003
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 11:50
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just make sure its done well, otherwise itll blow again. I recon save some more money and clean out the injectors and intake ports. You'll be happy you did it 
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Location:
Melbourne
Registered:
May 2002
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Re: ma70 compared to ga70 supras???
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Mon, 24 November 2003 15:46
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| ViNcEnXo wrote on Mon, 24 November 2003 20:25 |
They're rated at 180kw as standard... The BA inline 6 is rated at 180kw and they're non-turbo... Surely the turbo should more than make up for the extra litre of capacity.
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FPV BA falcon XR6... not a problem  pulled many many car lengths on it
Allan
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Location:
Dominica
Registered:
May 2003
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Re: ma70 compared to ga70 supras???
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Tue, 25 November 2003 17:58
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Hey
The ga70 with the 1G-GTE or 1G-GTEU are excellent cars. The 1G is a bullet proof engine that can take a lot of beating & still come out smiling.... & its rated at 210hp & 190hp respectively. The ma70 on the other hand is a much more powerful car. The only weakness is the bhg. That can easily be solved by getting a HKS metal head gasket & torquing it with ARP bolts....problems solved.
but the choice is yours to make.....personally I'd go for the jza70.....2.5l twin turbo rated at 290hp at the flywheel
that's my 2cents on the matter
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