Gear brake
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Joined: Nov 2007
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From: Seattle, WA, USA
Gear brake
i like to use lower gear brake/engine brake and wheel brake at the same time whenever the car comes to a stoplight. any cons and pro by using gear brake? would it give engine more pressure that cause excessive wear and tear or ? thanks
Modified by Powered by VTEC at 7:30 AM 3/12/2008
Modified by Powered by VTEC at 7:30 AM 3/12/2008
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Joined: Oct 2002
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From: Cali
Re: Gear brake (Powered by VTEC)
If done right there will be no wear or tear on the motor. Biggest wear is the clutch, but if you rev match when you go into gear and not just slam it in youll be fine. I downshift to stop more then i use the brakes.
Thread Starter
Joined: Nov 2007
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From: Seattle, WA, USA
Re: Gear brake (Luserkid)
i downshift to brake normally below 2750 rpm
yeah i drive like a grandma. i have b16a with itr internal parts built and i rarelly rev it over 4000 rpm
and i rarelly pop vtec either and man i really drive like a grandma
yeah i drive like a grandma. i have b16a with itr internal parts built and i rarelly rev it over 4000 rpm
and i rarelly pop vtec either and man i really drive like a grandma
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From: PinaColadaBurgh, Id, USA
Re: Gear brake (Luserkid)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid »</TD></TR><TR><TD CLASS="quote">I downshift to stop more then i use the brakes. </TD></TR></TABLE> Hahaha! Wise. This is adsurd. You're using the transmission to slow you down. You're using a pretty complicated and very expensive part of your vehicle instead of using the cheap and easy brakes to transfer energy. Stupid. 
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From: Cali
Re: Gear brake (hatchling37)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchling37 »</TD></TR><TR><TD CLASS="quote"> Hahaha! Wise. This is adsurd. You're using the transmission to slow you down. You're using a pretty complicated and very expensive part of your vehicle instead of using the cheap and easy brakes to transfer energy. Stupid. </TD></TR></TABLE>
Whats going to lock up first, trans braking or brake pressure? Brake pressure. Which gives you more control of the car in an emergency when braking, trans or pressure? Trans. If dont right you are not damaging anything. Im not saying i never use my brakes, but i use the trans more then the brakes.
Also to add, it is very very rare to hear someone breaking gears (if it even happens) by trans braking, even when people misshift and over rev the motor goes, not the trans. This is why i keep bringing up rev matching and done right.
</TD></TR></TABLE>Whats going to lock up first, trans braking or brake pressure? Brake pressure. Which gives you more control of the car in an emergency when braking, trans or pressure? Trans. If dont right you are not damaging anything. Im not saying i never use my brakes, but i use the trans more then the brakes.
Also to add, it is very very rare to hear someone breaking gears (if it even happens) by trans braking, even when people misshift and over rev the motor goes, not the trans. This is why i keep bringing up rev matching and done right.
Re: Gear brake (hatchling37)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchling37 »</TD></TR><TR><TD CLASS="quote"> Hahaha! Wise. This is adsurd. You're using the transmission to slow you down. You're using a pretty complicated and very expensive part of your vehicle instead of using the cheap and easy brakes to transfer energy. Stupid. </TD></TR></TABLE>
Cylinder compression is doing most of the stopping, not the trany, i.e. jake brake on a semi.
</TD></TR></TABLE>Cylinder compression is doing most of the stopping, not the trany, i.e. jake brake on a semi.
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Joined: Jan 2007
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From: Greenville, SC, USA
I believe the right term is exhaust breaking, and I do it all the time. If stopping for a light that will cause me to totally stop I'll coast in neutral, but if I know the light's sequence and can see that I'll not have to stop I'll slow by downshifting and hit it at the green.
Learning exhaust breaking is good and when used properly can help shorten stopping distances in emergency situations.
Learning exhaust breaking is good and when used properly can help shorten stopping distances in emergency situations.
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Joined: Jul 2004
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From: Regina, Sask, Canada
Re: Gear brake (Luserkid)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid »</TD></TR><TR><TD CLASS="quote">If done right there will be no wear or tear on the motor. Biggest wear is the clutch, but if you rev match when you go into gear and not just slam it in youll be fine. I downshift to stop more then i use the brakes. </TD></TR></TABLE>
Same, I do it all the time.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blk92_d16 »</TD></TR><TR><TD CLASS="quote">I believe the right term is exhaust breaking, and I do it all the time. If stopping for a light that will cause me to totally stop I'll coast in neutral, but if I know the light's sequence and can see that I'll not have to stop I'll slow by downshifting and hit it at the green.
Learning exhaust breaking is good and when used properly can help shorten stopping distances in emergency situations.</TD></TR></TABLE>
N I'm pretty sure it engine braking.
Taken from Wiki:
The exhaust brake is used in large diesel vehicles because the rate of conversion of mechanical energy into waste thermal energy is low compared to the mechanical returns to kinetic energy from the air-spring effect in the engine
Same, I do it all the time.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blk92_d16 »</TD></TR><TR><TD CLASS="quote">I believe the right term is exhaust breaking, and I do it all the time. If stopping for a light that will cause me to totally stop I'll coast in neutral, but if I know the light's sequence and can see that I'll not have to stop I'll slow by downshifting and hit it at the green.
Learning exhaust breaking is good and when used properly can help shorten stopping distances in emergency situations.</TD></TR></TABLE>
N I'm pretty sure it engine braking.
Taken from Wiki:
The exhaust brake is used in large diesel vehicles because the rate of conversion of mechanical energy into waste thermal energy is low compared to the mechanical returns to kinetic energy from the air-spring effect in the engine
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I like replacing syncros and clutches way more than than brakes!! I also placed 4th at the special olympics!!</sarcasm>
Use your brakes, thats what their there for. Your engine is there to power you, not slow you down. Only 14 and 15 year old kids think its cool when you downshift to a light...
@mcvtec: You said "Cylinder compression is doing most of the stopping, not the trany, i.e. jake brake on a semi."
Are you [freak]ing kidding me? Can [freak]ing kids giving false info on honda tech all day long just be banned? or put on read only status?
What comes inbetween your wheels and your engine? THE TRANNY, so YES you DO PUT STRESS ON THE TRANNY. Since our trannies have helical cut gears, they are ment to take stress in one direction, and have when they push apart thats accounted for, NOT when your using the engine to slow down, that puts extra stress on the other side of the teeth of the gears (not much damage) but now your force the bearings to push in the other direction, which it was not engineered to do.
Then you say a Semi's jake brake is in the tranny? How much do you know about anything more than your cars engine???? Most jake brakes delay or even completely close an exhaust valve to create more compression to slow down...
Christ all [freak]ing mighty, most these kids need the internet taken away from them. All they do is give out false info and then go look at ****...
Modified by 99GreenEX at 12:04 PM 3/12/2008
Use your brakes, thats what their there for. Your engine is there to power you, not slow you down. Only 14 and 15 year old kids think its cool when you downshift to a light...
@mcvtec: You said "Cylinder compression is doing most of the stopping, not the trany, i.e. jake brake on a semi."
Are you [freak]ing kidding me? Can [freak]ing kids giving false info on honda tech all day long just be banned? or put on read only status?
What comes inbetween your wheels and your engine? THE TRANNY, so YES you DO PUT STRESS ON THE TRANNY. Since our trannies have helical cut gears, they are ment to take stress in one direction, and have when they push apart thats accounted for, NOT when your using the engine to slow down, that puts extra stress on the other side of the teeth of the gears (not much damage) but now your force the bearings to push in the other direction, which it was not engineered to do.
Then you say a Semi's jake brake is in the tranny? How much do you know about anything more than your cars engine???? Most jake brakes delay or even completely close an exhaust valve to create more compression to slow down...
Christ all [freak]ing mighty, most these kids need the internet taken away from them. All they do is give out false info and then go look at ****...
Modified by 99GreenEX at 12:04 PM 3/12/2008
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From: Regina, Sask, Canada
Re: (99GreenEX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99GreenEX »</TD></TR><TR><TD CLASS="quote">I like replacing syncros and clutches way more than than brakes!! I also placed 4th at the special olympics!!</sarcasm>
Use your brakes, thats what their there for. Your engine is there to power you, not slow you down. Only 14 and 15 year old kids think its cool when you downshift to a light...</TD></TR></TABLE>
You obviously have a lot to learn.
Use your brakes, thats what their there for. Your engine is there to power you, not slow you down. Only 14 and 15 year old kids think its cool when you downshift to a light...</TD></TR></TABLE>
You obviously have a lot to learn.
Re: (99GreenEX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99GreenEX »</TD></TR><TR><TD CLASS="quote">
@mcvtec: You said "Cylinder compression is doing most of the stopping, not the trany, i.e. jake brake on a semi."
Christ all [freak]ing mighty, most these kids need the internet taken away from them. All they do is give out false info and then go look at ****...</TD></TR></TABLE>
Looks like someone is smoking crack. ^^^
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wikipedia »</TD></TR><TR><TD CLASS="quote">The advantage of using the engine to dissipate energy is this immediate ejection of energy. Hot gases are ejected from the vehicle very quickly and the gases also transfer much of their heat directly to engine parts. In addition, friction produced within the engine system also adds heat to the engine parts.
This engine heat is taken away by the engine's integrated cooling system: usually a liquid circulation system and a radiator. Disc or drum brakes have no such energy dissipation mechanisms. They must rely on air flow to remove heat and they retain heat without producing temperatures that would deform and damage the brakes.
Placing a vehicle in a low gear causes the engine to have more leverage (mechanical advantage) on the road and the road to have less leverage on the engine. This is what allows cars to slow down using their relatively flimsy engine parts. The engine maintains a high rotational speed to dissipate a lot of power without forcing too much strain on the engine.
The exhaust brake is used in large diesel vehicles because the rate of conversion of mechanical energy into waste thermal energy is low compared to the mechanical returns to kinetic energy from the air-spring effect in the engine.</TD></TR></TABLE>
@mcvtec: You said "Cylinder compression is doing most of the stopping, not the trany, i.e. jake brake on a semi."
Christ all [freak]ing mighty, most these kids need the internet taken away from them. All they do is give out false info and then go look at ****...</TD></TR></TABLE>
Looks like someone is smoking crack. ^^^
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wikipedia »</TD></TR><TR><TD CLASS="quote">The advantage of using the engine to dissipate energy is this immediate ejection of energy. Hot gases are ejected from the vehicle very quickly and the gases also transfer much of their heat directly to engine parts. In addition, friction produced within the engine system also adds heat to the engine parts.
This engine heat is taken away by the engine's integrated cooling system: usually a liquid circulation system and a radiator. Disc or drum brakes have no such energy dissipation mechanisms. They must rely on air flow to remove heat and they retain heat without producing temperatures that would deform and damage the brakes.
Placing a vehicle in a low gear causes the engine to have more leverage (mechanical advantage) on the road and the road to have less leverage on the engine. This is what allows cars to slow down using their relatively flimsy engine parts. The engine maintains a high rotational speed to dissipate a lot of power without forcing too much strain on the engine.
The exhaust brake is used in large diesel vehicles because the rate of conversion of mechanical energy into waste thermal energy is low compared to the mechanical returns to kinetic energy from the air-spring effect in the engine.</TD></TR></TABLE>
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Joined: Jul 2004
Posts: 978
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From: Regina, Sask, Canada
Re: (99GreenEX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99GreenEX »</TD></TR><TR><TD CLASS="quote">oh yea? explain to me ole wise one how its so much smarter to put wear on your clutch versus your breaks, and what benefit you get from putting unnescecary stress on your engine and transmission..</TD></TR></TABLE>
What wear on your clutch? Do u know how long it takes to downshift? It should take you the same amount of time as it does to upshift, so where is the wear?
Where are you getting this stress on the engine and tranny from? There is no stress! Have u never been in a gear at higher rpm say like 5k and let the engine and car slow down while in gear? Same thing going on when u downshift!
Thats a lot less stress on the motor than redlining it.
What wear on your clutch? Do u know how long it takes to downshift? It should take you the same amount of time as it does to upshift, so where is the wear?
Where are you getting this stress on the engine and tranny from? There is no stress! Have u never been in a gear at higher rpm say like 5k and let the engine and car slow down while in gear? Same thing going on when u downshift!
Thats a lot less stress on the motor than redlining it.
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