govener
Senior Member
SoCal tC Club
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Scion Evolution
Joined: May 2004
Posts: 1,947
From: Irvine, CA
rev limiter cuts fuel
governor cuts fuel
rev limiter is to prevent OVERREVING (of course you knew that)
governor cuts fuel to prevent OVERSPEEDING (hence 5.9 rpm in 5th gear at 127mph)
so ya...
governor cuts fuel
rev limiter is to prevent OVERREVING (of course you knew that)
governor cuts fuel to prevent OVERSPEEDING (hence 5.9 rpm in 5th gear at 127mph)
so ya...
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Joined: Feb 2006
Posts: 277
Not here to bash anyone, just wanted to make a quick statement. If you wish to remove the speed limiter and fuel cutoff and have a car that is capable of going above the factory set numbers good for you, however the rev limiter is not something I personally would remove or change as tc's have a somewhat long stroke and I am sure toyota did not design the rods or bearing to withstand a higher rev. Just my opinion and in no way am I advocating street racing. I am a big fan of legal strip racing the scca, nhra, and idra.
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Joined: Dec 2004
Posts: 2,114
From: Cape Coral, Florida
Originally Posted by PghtC
and even my baby
This post should be locked.
Senior Member
SL Member
Joined: Dec 2004
Posts: 2,114
From: Cape Coral, Florida
Originally Posted by AROQ
The rev limiter on a car is there to prevent over-reving, which will destroy the engine. Most gasoline cars designed for street use have a limiter somewhere around 6000-7000 RPM. Some sports cars have it set slightly higher to allow the engine to make more power in the high RPMs.
Simply removing the rev limiter, without making any other modifications to a car, will do next to nothing. In some cases, being able to rev the engine higher will yield slightly better performance, often at the cost of more engine wear.
You should only worry about raising the rev limiter once you've done substantial work to the engine. My personal advice would be to have at least the full exhaust upgraded (including the exhaust manifold and downpipe), a sport camshaft and some way to get more fuel to the engine.
The stock exhaust really restricts everything, so don't even think about removing the rev limiter if you're still running the stock exhaust. The stock camshaft is designed to make power in the stock rev range, so there really isn't any reason to raise the rev limiter if you still have the stock camshaft installed. About the only reason I see to raise it when you're still running with the stock camshaft would be so you don't accidentally hit it (when, driving competitively on the street, or in another similar situation). Once you install a sport camshaft you will want to raise the rev limiter so you can use the power the camshaft makes above 6000 RPM. You should also give the engine some more fuel and richen up the mixture a bit if running a sport camshaft, and if running in the high RPMs.
Unless you build an all-out race car, you will not be reving past 7000-8000 RPM. Any car that makes good power above 7000 makes little power below 4000-5000 RPM, and is not by any means a street car.
Simply removing the rev limiter, without making any other modifications to a car, will do next to nothing. In some cases, being able to rev the engine higher will yield slightly better performance, often at the cost of more engine wear.
You should only worry about raising the rev limiter once you've done substantial work to the engine. My personal advice would be to have at least the full exhaust upgraded (including the exhaust manifold and downpipe), a sport camshaft and some way to get more fuel to the engine.
The stock exhaust really restricts everything, so don't even think about removing the rev limiter if you're still running the stock exhaust. The stock camshaft is designed to make power in the stock rev range, so there really isn't any reason to raise the rev limiter if you still have the stock camshaft installed. About the only reason I see to raise it when you're still running with the stock camshaft would be so you don't accidentally hit it (when, driving competitively on the street, or in another similar situation). Once you install a sport camshaft you will want to raise the rev limiter so you can use the power the camshaft makes above 6000 RPM. You should also give the engine some more fuel and richen up the mixture a bit if running a sport camshaft, and if running in the high RPMs.
Unless you build an all-out race car, you will not be reving past 7000-8000 RPM. Any car that makes good power above 7000 makes little power below 4000-5000 RPM, and is not by any means a street car.
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Joined: Jan 2006
Posts: 49
Well I'll tell you this much. Most of the people who know enough about cars to be able to remove the speed limiter will not tell you how to do it.. This is because they want to know who they are talking to and make sure that person should be removeing it.
For example a 16 year old kid has no right to remove it without his parents knowing. Even if he only races on a track.
To argue if its right or wrong to speed on the streets will not get anyone anywhere. Altho I have seen something like this coment on other sites this one seams best fit.
Argueing on the internet is like street raceing. Even if you win your still retarded.
For example a 16 year old kid has no right to remove it without his parents knowing. Even if he only races on a track.
To argue if its right or wrong to speed on the streets will not get anyone anywhere. Altho I have seen something like this coment on other sites this one seams best fit.
Argueing on the internet is like street raceing. Even if you win your still retarded.
Junior Member
Joined: Apr 2006
Posts: 24
From: Orlando, FL
Well, for those of you of are not involved in the internet top speed ____ing match, here is my DIY write up of how to install the GReddy speed cut controller. The write up is for a Corolla of course, but could easily be done on a TC if you have the ECU chart for it. I got mine from PTUNING.COM for around $70 shipped.
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Scikotics
SL Member
Joined: Nov 2004
Posts: 9,731
From: Minneapolis, MN
Originally Posted by AROQ
The rev limiter on a car is there to prevent over-reving, which will destroy the engine. Most gasoline cars designed for street use have a limiter somewhere around 6000-7000 RPM. Some sports cars have it set slightly higher to allow the engine to make more power in the high RPMs.
Simply removing the rev limiter, without making any other modifications to a car, will do next to nothing. In some cases, being able to rev the engine higher will yield slightly better performance, often at the cost of more engine wear.
You should only worry about raising the rev limiter once you've done substantial work to the engine. My personal advice would be to have at least the full exhaust upgraded (including the exhaust manifold and downpipe), a sport camshaft and some way to get more fuel to the engine.
The stock exhaust really restricts everything, so don't even think about removing the rev limiter if you're still running the stock exhaust. The stock camshaft is designed to make power in the stock rev range, so there really isn't any reason to raise the rev limiter if you still have the stock camshaft installed. About the only reason I see to raise it when you're still running with the stock camshaft would be so you don't accidentally hit it (when, driving competitively on the street, or in another similar situation). Once you install a sport camshaft you will want to raise the rev limiter so you can use the power the camshaft makes above 6000 RPM. You should also give the engine some more fuel and richen up the mixture a bit if running a sport camshaft, and if running in the high RPMs.
Unless you build an all-out race car, you will not be reving past 7000-8000 RPM. Any car that makes good power above 7000 makes little power below 4000-5000 RPM, and is not by any means a street car.
Simply removing the rev limiter, without making any other modifications to a car, will do next to nothing. In some cases, being able to rev the engine higher will yield slightly better performance, often at the cost of more engine wear.
You should only worry about raising the rev limiter once you've done substantial work to the engine. My personal advice would be to have at least the full exhaust upgraded (including the exhaust manifold and downpipe), a sport camshaft and some way to get more fuel to the engine.
The stock exhaust really restricts everything, so don't even think about removing the rev limiter if you're still running the stock exhaust. The stock camshaft is designed to make power in the stock rev range, so there really isn't any reason to raise the rev limiter if you still have the stock camshaft installed. About the only reason I see to raise it when you're still running with the stock camshaft would be so you don't accidentally hit it (when, driving competitively on the street, or in another similar situation). Once you install a sport camshaft you will want to raise the rev limiter so you can use the power the camshaft makes above 6000 RPM. You should also give the engine some more fuel and richen up the mixture a bit if running a sport camshaft, and if running in the high RPMs.
Unless you build an all-out race car, you will not be reving past 7000-8000 RPM. Any car that makes good power above 7000 makes little power below 4000-5000 RPM, and is not by any means a street car.
******EDIT***********
Oops, see someone else already brought that one up
Senior Member
Scikotics
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Joined: Jun 2005
Posts: 2,757
From: West Des Moines, IA
Originally Posted by surfripcurl
<<<<<<<HAS BEEN 138 in the TC That is where my car shut off... REALLY STUPID THING TO BE DOING ON THE HIGHWAYS BY THE WAY
Originally Posted by Shogun
If you have your car upgraded to the point where you need to get rid of the limiter, you should be abe to figure it out for yourself by then.
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