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Old 01-05-2008, 06:29 AM   #1
WhiteTurboZ89
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Join Date: Jan 2008
Location: san francisco
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Default newbie here (how much is safe? )

Hello, my 1989 7mgte motor has 212,000 thousand miles on it.
There is nothing wrong wit it, but during races im scared to push it.
wat rpm do u guys recommend that is safe? i have only push it almost to 4 and a half rpm. iam holding back ? or iam pushing too much for this old engine. the hg has been replace wit aluminum hg.

oh yeah, i was thinking bout if i should rebuild my motor, or buy a lower mile one? if i rebuild how much iam looking at?

plz excuse the newb questions that i ask, and going to ask in the future.
my half brother only given this to me 3 weeks ago, and im new to cars in general.

any advice would be great. thxs
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Old 01-05-2008, 11:33 AM   #2
CyFi6
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theres really no way to determine an engine condition based on the mileage, if its been properly maintained it could be like new. I dont think wear is so much dependant on rpm as it is on load.
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Old 01-05-2008, 05:35 PM   #3
SilenceboneSupra
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i have a N/A '92 supra and i push it too 7000rpm mine HG has been replaced, engine was retorqued, new venom injectors, old intake was replaced with a new one. all sensors was replaced with new ones, costed me no more then $1000 and engine is running great.
This does not mean you should do the same. you can let a mechanic chek the engine out and see what he recommends doing with the engine like running compression test etc... chek out if the turbo needs an upgrade or new intercooler....
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