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Location:
Perth
Registered:
May 2003
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7MGE OR 1GGTE
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Thu, 05 June 2003 14:43
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hi
i posted a question the otherday about a 1989 supra, here is the thing was is the better motor 7MGE or 1GGTE?
if i get the 7MGE i will be getting a turbo.
also is there anything different between a 1987 MK3 supra to a 1989 MK3 Supra?
one other question as well i have a 1981 RA40 coupe, i managed to get hold of a 18RGU engine but i have heard that its not a cheap engine to rebiuld, what i would like know is there any point on rebiulding it coz i am thinking about getting a MK2 supra which has the 5MGE in.
so whats a better engine 5MGE or 18RGU?
please get back to as soon as possible, here my email triptek@iprimus.com.au
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Location:
Forrestfield, WA
Registered:
August 2002
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Re: 7MGE OR 1GGTE
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Fri, 06 June 2003 00:20
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Neither
7MGTE needs modifications so they dont blow heads, 1GGTE are underpowered....
1JZGTE my friend 
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Location:
Wollongong
Registered:
July 2002
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Re: 7MGE OR 1GGTE
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Fri, 06 June 2003 00:23
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if its going into a supra i wouldn't bother with the 1gg, the supra's a big heavy lump and i think the performance would be dissapointing.
and as far as I know the differences are mainly visual. Interiors different (steering wheel trim, numbers on the gauges,needles on the gauges etc) different front bar rear spoiler etc.
I have read on some us sites that there was a power difference but it wasn't a great deal, can't remember exact numbers though.
hmmm and now I see theres an email...maybe i should have sent this all there?
nah stuff it
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Location:
Brisbane
Registered:
May 2002
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Re: 7MGE OR 1GGTE
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Fri, 06 June 2003 01:09
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Get the 7M for sure. The standard 1G-GTE performs about the same as the non-turbo 7M-GE, so it should go without saying that the turbo 7M-GTE will go a LOT harder and have plenty more potential. As mentioned above, the 1JZ-GTE is better again, but it also costs more.
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Location:
Forrestfield, WA
Registered:
August 2002
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Re: 7MGE OR 1GGTE
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Fri, 06 June 2003 01:36
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Dont get me wrong, 7M arent all that bad... just poorly designed in the ol Supra.
From owners ive spoken to the Turbo plumbing has insufficient heat shielding so when the car is shut down cylinders 4 & 5 are superheated.. and Cylinder 6 is affected due to poor flow of the cooling system... if you replumb around the heater back into the head you can avoid this problem.
Ive seen some angry 7M's, you just need to work around their
factory issues.
I just love my 1JZ... Indestructable!
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Location:
North Sydney
Registered:
May 2002
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Re: 7MGE OR 1GGTE
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Fri, 06 June 2003 07:10
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If you set the 7MGTE up correctly you won't have any issues. You'll have an animal and you wont have to worry about the head gasket, i'm still running the original factory head gasket.
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Registered:
August 2002
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Re: 7MGE OR 1GGTE
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Fri, 06 June 2003 07:33
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if you replumb around the heater back into the head you can avoid this problem.
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Please explain?
Difference wise, the ECU and loom will be different between the 87 and 89 and will also vary on auto and manual.
There is 'talk', mainly from yanks, of the later model ECU's being better but im yet to see any proof: they are yanks after all.
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Location:
Ipswich
Registered:
July 2002
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Re: 7MGE OR 1GGTE
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Fri, 06 June 2003 09:58
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there is also the cosmetic differences between 87 and 89.
Different nose and 3 piece wing on the back.
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Registered:
September 2005
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Location:
Brisbane
Registered:
June 2003
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Re: 7MGE OR 1GGTE
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Thu, 29 September 2005 22:20
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| jonnyincognito wrote on Fri, 30 September 2005 05:28 |
Isn't the problem with the head gaskets not the headgasket itself but the torque specs they used from the factory? They were too light.
Edit: I guess I should check the age of the thread before I post! Here's some info on retorquing the 7M head though:
http://www.supras.org.nz/techinfo/stuart_woolford/ storque.html
Joshua
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its all speculation as to what exactly caused them to blow. soft alloy as the head, low torqued head bolts, tight bore to bore and coolant gallerie tolerances, bad designed gasket...who knows?? i know i rebuilt my 7mge 20,000km ago and torqued it down to 73 ft lbs...and i have flogged the tits off it to have no repeat problems as yet...touch wood
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