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Location:
tas
Registered:
June 2002
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Location:
Perth
Registered:
January 2003
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Re: Power vs Reliabilty
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Sat, 21 June 2003 16:15
 
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That depends on the condition your engine is in.
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Location:
tas
Registered:
June 2002
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Re: Power vs Reliabilty
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Sat, 21 June 2003 16:19
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ok well my engine has done 150,000k's and it's just had a new headgasket, needs an oil change and sounds a little rough (just got it a few days ago) would it be a bad idea to mod it for more power at it's age? or would that actually help it to run more reliable?
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Location:
Perth
Registered:
May 2003
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Re: Power vs Reliabilty
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Sun, 22 June 2003 02:54
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Generally, power up, reliability down.
Trying to get more power out of an engine with 150000k's plus would not be a smart idea. It all depends on the increase you are looking for. It all starts as a couple PSI more on the boost and then generally snowballs.
If you have plans to rebuild the motor in the short term (6-12 months). Then why not see how much it can take? But if it has gotta last a lot longer, then keep it standard.
Well, thats my opinion. I am sure others will have different opinions.
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Location:
North Sydney
Registered:
May 2002
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Re: Power vs Reliabilty
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Sun, 22 June 2003 03:03
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From my experience with the 7MGTE if the engine is on ok condition then do the mandatory "7mgte" things and then start modding for power.
My engine has got around 200,000kms on it and its happily pushing some decent figures. It's completly internally stock but i've done the necessary things to ensure engine life with the 7MGTE.
-Always run the red toyota coolant.
-Re-torque the head gasket to around 74ft/lbs.
-If your going to run more than about 12psi, get rid of the factory ECU.
-Check the tune of your engine at intervals after mods are performed and run a full load AF ratio of 12.5:1
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Location:
tas
Registered:
June 2002
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Re: Power vs Reliabilty
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Sun, 22 June 2003 03:41
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Very impressive, your hualing 400+HP out of a 200,000+Km 7mgte engine!
Can you tell me what the "mandatory "7mgte" things" are? i should know these things, but i'm still learning.
I noticed the coolant in mine is the green stuff, is that going to affect the engine in the long run? the red toyota stuff is obvously expensive but worth it, what should i ask for when i go to toyota? Just ask for toyota coolant? or is there a special one for these engines?
Also what does AF stand for? i'm sure i'll kick myself when you tell me, just can't think right now what it stands for.
Thanx alot.
Chris
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Location:
Sydney
Registered:
May 2002
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Location:
tas
Registered:
June 2002
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Re: Power vs Reliabilty
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Sun, 22 June 2003 11:29
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ok thanx,
i've been reading a supra website on reconditioning an engine, and it seems alot of work and money even if you do it all your self. would it be cheaper to buy a new engine replacement? or to reco your old engine? i'm pretty sure SSS automotive sells 7MGTE's for $1400 correct me if i'm wrong.
Also where in Australia can i get these ARP headbolts? and Metal headgaskets?
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