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Old 05-24-2010, 08:49 AM   #1 (permalink)
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high revs-damage to the engine?

My friend recently reved my engine in Neutral, up to the fuel cut off point, twice
it was a warm day 70degrees or so, my question is, obviously engines can get damaged, but did Toyota take high revs into consideration, is 6000rpm safe for a second or 2? what parts would get damaged if anything.


I feel slight vibrations from the engine and the car seems louder now.
I know I'm paranoid, but I plan to keep this car forever.
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Old 05-24-2010, 09:20 AM   #2 (permalink)
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Re: high revs-damage to the engine?

with the new fuel cut out rpm limiter if it was only for a second or to i wouldnot worry to much just dont floor it and leave it there

the things you would have to worry about is the valve train lifters , push rods , valves and valve springs
i have seen drifters hit limiters all the way around the track
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Old 05-24-2010, 10:50 AM   #3 (permalink)
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Re: high revs-damage to the engine?

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BIG BAD DAD previously said: View Post
with the new fuel cut out rpm limiter if it was only for a second or to i wouldnot worry to much just dont floor it and leave it there

the things you would have to worry about is the valve train lifters , push rods , valves and valve springs
i have seen drifters hit limiters all the way around the track



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Old 05-24-2010, 11:11 AM   #4 (permalink)
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Re: high revs-damage to the engine?

I would consider looking for a new friend.
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Old 05-24-2010, 11:50 AM   #5 (permalink)
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Re: high revs-damage to the engine?

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I would consider looking for a new friend.
i wanted to punch him in the mouth, but I should add, alcohol was involved
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Old 05-24-2010, 11:52 AM   #6 (permalink)
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Re: high revs-damage to the engine?

Thats is a good question. I can tell you to what point you can push ALOT of engines, but to what point is to far on the 4.0 used in the FJ? I am very unfamilar with Toyotas engine and rev limiter set ups. I have seen videos where guys are in toyotas and in deep mud with the engine buried in the rev limiter. Is it set up Factory to be able to keep from damaging it or do they have a after market set up. I love the skinny pedal...
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Old 05-25-2010, 01:13 AM   #7 (permalink)
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Re: high revs-damage to the engine?

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Thats is a good question. I can tell you to what point you can push ALOT of engines, but to what point is to far on the 4.0 used in the FJ? I am very unfamilar with Toyotas engine and rev limiter set ups. I have seen videos where guys are in toyotas and in deep mud with the engine buried in the rev limiter. Is it set up Factory to be able to keep from damaging it or do they have a after market set up. I love the skinny pedal...
Common sense dictates to set up the rev limiter to prevent engine damage, but with a 4.0L engine stresses must be huge at 6k rpm
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Old 05-25-2010, 04:07 AM   #8 (permalink)
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Re: high revs-damage to the engine?

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Common sense dictates to set up the rev limiter to prevent engine damage, but with a 4.0L engine stresses must be huge at 6k rpm
I know many manufactures since the intergration of factory rev limiters, have been setting them so in the event you mis-shift, have that buddy you wanta choke, or do hit the magic mark, you dont scatter pistons. But it seems to be only on some of the High Performance Models that you can actually hold it in the rev limiter for mor than 2 seconds. I am just wondering if Toyota took this into consideration on the FJ 4.0 giving us nut jobs the ability to hammer the Skinny pedal with out hammering our engines.
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Old 05-25-2010, 04:30 AM   #9 (permalink)
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Re: high revs-damage to the engine?

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Old 05-25-2010, 07:36 AM   #10 (permalink)
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Re: high revs-damage to the engine?

Quote:
BIG BAD DAD previously said: View Post
with the new fuel cut out rpm limiter if it was only for a second or to i wouldnot worry to much just dont floor it and leave it there

the things you would have to worry about is the valve train lifters , push rods , valves and valve springs
i have seen drifters hit limiters all the way around the track
haha, and we blow motors all the time, but otherwise your right on.

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