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

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.

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....