5500 RPM Rev Limiter - Page 2

Skylinegtr06 · 04-08-2007, 08:21 PM

^what, it says in our manual to rev to 3000 during start up?

**Yodums** · 04-08-2007, 08:40 PM

I'm not sure. I've never read that part, but I assumed if it did, it's telling us to drive our cars to a maximum of 3,000 rpm.

***mad monkey*** · 04-15-2007, 03:33 PM

Quote:

Originally Posted by Yodums

Are you sure it's really not asking you to drive up to 3,000 rpm, which is completely different than sitting in neutral at 3,000 rpm.

yes i'm sure... when it talks about warming up the engine to operating temperature it tells you to hold it at 3k until the fans come on... come on guys... think about it, we have hondas not fords... our engines ARE high revving. And now its not in your owners manual its in a service manual. Go dl a PDF manual for a honda civic (older gens) and look what it talks about for warming up to operating temps when you're doing timing, waiting for the thermostat to open, to see if the fans work, etc. I'm not totally against the whole dry revving thing but for it to be said as EXTREMELY bad yeah I think that statement's wrong. So whoever thinks I meant we should rev our engines to 3k everytime we start our cars you read wrong... I'm talking about when you're working on it and you need to warm it to operating temps.

watice · 06-06-2007, 03:16 AM

Quote:

Originally Posted by mad monkey

yes i'm sure... when it talks about warming up the engine to operating temperature it tells you to hold it at 3k until the fans come on... come on guys... think about it, we have hondas not fords... our engines ARE high revving. And now its not in your owners manual its in a service manual. Go dl a PDF manual for a honda civic (older gens) and look what it talks about for warming up to operating temps when you're doing timing, waiting for the thermostat to open, to see if the fans work, etc. I'm not totally against the whole dry revving thing but for it to be said as EXTREMELY bad yeah I think that statement's wrong. So whoever thinks I meant we should rev our engines to 3k everytime we start our cars you read wrong... I'm talking about when you're working on it and you need to warm it to operating temps.

no way in hell am i starting my car and revving to 3k on a cold start like that.... I'm almost positive they mean driving UP TO 3k rpm not sitting there and revving... would that not increase the chance of cracking your engine block?

LoverOfCivics · 06-06-2007, 03:27 AM

Quote:

Originally Posted by watice

no way in hell am i starting my car and revving to 3k on a cold start like that.... I'm almost positive they mean driving UP TO 3k rpm not sitting there and revving... would that not increase the chance of cracking your engine block?

That is ridiculous,, you wont crack the block at 3k hell ive done way higher than that just trying to get onto the street when its cold geeze

bossman · 06-06-2007, 03:44 AM

Quote:

Originally Posted by samx109

your rev won't go up above 5500RPM cause V-TEC point is at 5800RPM.. so i guess vtec ingages only if your car is running forward.. IMO..

Nope...wrond,you can switch over to the second cam profile(hit vtec for those old schoolers) while in reverse.I don't recommend it un less you have clean change of undies with you though.

Metalhead852 · 06-06-2007, 03:59 AM

I would think they had engine over speed in mind when they put in the rev limiter. Sure the engine can go up to 8000 RPM, but over time not in 2 seconds. The engine has a speed limit and it needs to build up to it.

***mad monkey*** · 06-07-2007, 03:03 AM

Quote:

Originally Posted by Metalhead852

I would think they had engine over speed in mind when they put in the rev limiter. Sure the engine can go up to 8000 RPM, but over time not in 2 seconds. The engine has a speed limit and it needs to build up to it.

Do you have an Si? The limiter is only in neutral at a dead stop or below 5 or 6 mph or something, I'm not sure. But if you're rolling you can sure as hell get it to redline as many times as you want to in 2 seconds. And there's a limiter at redline I believe its at 8200 or something around that area.

***mad monkey*** · 06-07-2007, 03:08 AM

Quote:

Originally Posted by watice

no way in hell am i starting my car and revving to 3k on a cold start like that.... I'm almost positive they mean driving UP TO 3k rpm not sitting there and revving... would that not increase the chance of cracking your engine block?

They mean revving dude. In my post of doing timing, seeing if your t-stat opens or fans come on, etc. How many mechanics out there put the whole car back together if it was apart and being worked on, just to drive it to get it to operating temps and then disassemble everything to get back into the situtation they were in prior to putting the car back together and at the same time have the car cool down again. LOL

Why, do you have an R18?

Juuuuuust kidddinngggg hehe

Metalhead852 · 06-07-2007, 10:59 AM

Quote:

Originally Posted by mad monkey

Do you have an Si? The limiter is only in neutral at a dead stop or below 5 or 6 mph or something, I'm not sure. But if you're rolling you can sure as hell get it to redline as many times as you want to in 2 seconds. And there's a limiter at redline I believe its at 8200 or something around that area.

Yeah I was refering to when not moving in neutral. And while moving forward it's ok as long as the engine has a load on it.

2RotorMotor · 06-07-2007, 01:54 PM

my assumption for the rev limit is so that you cannot dump the clutch @ high rpm where alot of damage can occur. It has nothing to do with load. Once you are moving forward there is a hell of alot less chance of you breaking shit because there is not as much shock..

Metalhead852 · 06-07-2007, 02:55 PM

That load on the engine is what prevents exactly what you are talking about... load being the weight of the car moving forward. If the engine is pinging and you drop a couple thousand pounds on a part moving at 8000RPMs with something that is not moving at all then obviously yes something is going to break.

2RotorMotor · 06-07-2007, 03:17 PM

Quote:

Originally Posted by Metalhead852

That load on the engine is what prevents exactly what you are talking about... load being the weight of the car moving forward. If the engine is pinging and you drop a couple thousand pounds on a part moving at 8000RPMs with something that is not moving at all then obviously yes something is going to break.

it has nothing to do with load.. if you are rolling forward and in nuetral, there is 0 load on the motor, even if the car is rolling at 100 mph.. The things that are first to get damaged are the axles and clutch and tranny, basically the whole drivetrain except the motor..

Metalhead852 · 06-07-2007, 03:27 PM

so if we are in agreement why are we debating? When I say load I mean drive train is being worked by the engine. The engine may have a redline of 8000 but it still has to build up to it otherwise seals start going bad etc. You gotta build up. I deal with this everyday.

SR20DE_MAN · 06-07-2007, 03:41 PM

Quote:

Originally Posted by tomasro

but it's probably there for a good reason.

Yeah! It's called: "Clutch destruction prevention!" Hahahaha! ( ^o^)

***mad monkey*** · 06-08-2007, 01:57 AM

Soooo if i roll by you and rev my engine in neutral to redline repeatedly, I'll blow my motor up? Because it's not ok.

2RotorMotor · 06-08-2007, 02:04 AM

Quote:

Originally Posted by mad monkey

Soooo if i roll by you and rev my engine in neutral to redline repeatedly, I'll blow my motor up? Because it's not ok.

what you dont understand is the fact that the rev limitter is there to prevent clutch/axle damage... not motor damage.. it has nothing to do with the motor

Skylinegtr06 · 06-08-2007, 02:39 AM

isn't it bad to run the motor at neutral? It will wear everything more since there is no load? But the limiter I think is there to prevent transmission damage

2RotorMotor · 06-08-2007, 03:17 AM

Quote:

Originally Posted by Skylinegtr06

isn't it bad to run the motor at neutral? It will wear everything more since there is no load? But the limiter I think is there to prevent transmission damage

no.....

LoverOfCivics · 06-08-2007, 03:31 AM

OMG!!!! this is the most pointless thread, you dont need to launch past 4k anyways and why would you rev it to redline in neutral besides trying to look/sound stupid, save your enthusiasm for when your up next at the line! geeze, this thread is just

04-08-2007, 08:40 PM	#22 (permalink)
Yodums Scrodums Join Date: May 2006 Location: Ottawa, Canada Posts: 8,323 HIRO - ಠ_ಠ iTrader: 9 / 100%	I'm not sure. I've never read that part, but I assumed if it did, it's telling us to drive our cars to a maximum of 3,000 rpm. __________________ 2007 Taffeta White Civic Si Coupe

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04-08-2007, 08:21 PM	#21 (permalink)
Skylinegtr06 Senior Member Join Date: Jul 2006 Location: Chula Vista SD Age: 18 Posts: 5,745 edwyn(male) iTrader: 1 / 100%	^what, it says in our manual to rev to 3000 during start up?

06-06-2007, 03:59 AM	#27 (permalink)
Metalhead852 Senior Member Join Date: May 2007 Location: Fort Drum, NY Age: 23 Posts: 334 Michael iTrader: 0 / 0%	I would think they had engine over speed in mind when they put in the rev limiter. Sure the engine can go up to 8000 RPM, but over time not in 2 seconds. The engine has a speed limit and it needs to build up to it.

06-07-2007, 01:54 PM	#31 (permalink)
2RotorMotor Senior Member Join Date: Mar 2006 Posts: 1,903 iTrader: 0 / 0%	my assumption for the rev limit is so that you cannot dump the clutch @ high rpm where alot of damage can occur. It has nothing to do with load. Once you are moving forward there is a hell of alot less chance of you breaking shit because there is not as much shock..

06-07-2007, 02:55 PM	#32 (permalink)
Metalhead852 Senior Member Join Date: May 2007 Location: Fort Drum, NY Age: 23 Posts: 334 Michael iTrader: 0 / 0%	That load on the engine is what prevents exactly what you are talking about... load being the weight of the car moving forward. If the engine is pinging and you drop a couple thousand pounds on a part moving at 8000RPMs with something that is not moving at all then obviously yes something is going to break.

06-07-2007, 03:27 PM	#34 (permalink)
Metalhead852 Senior Member Join Date: May 2007 Location: Fort Drum, NY Age: 23 Posts: 334 Michael iTrader: 0 / 0%	so if we are in agreement why are we debating? When I say load I mean drive train is being worked by the engine. The engine may have a redline of 8000 but it still has to build up to it otherwise seals start going bad etc. You gotta build up. I deal with this everyday.

06-08-2007, 01:57 AM	#36 (permalink)
*mad monkey* I do look like a monkey Join Date: Mar 2007 Location: bay area Posts: 1,646 Jeremy iTrader: 1 / 100%	Soooo if i roll by you and rev my engine in neutral to redline repeatedly, I'll blow my motor up? Because it's not ok.

06-08-2007, 02:39 AM	#38 (permalink)
Skylinegtr06 Senior Member Join Date: Jul 2006 Location: Chula Vista SD Age: 18 Posts: 5,745 edwyn(male) iTrader: 1 / 100%	isn't it bad to run the motor at neutral? It will wear everything more since there is no load? But the limiter I think is there to prevent transmission damage

06-08-2007, 03:31 AM	#40 (permalink)
LoverOfCivics Senior Member Join Date: Apr 2007 Location: Dallas Texas Age: 19 Posts: 1,229 Javier iTrader: 0 / 0%	OMG!!!! this is the most pointless thread, you dont need to launch past 4k anyways and why would you rev it to redline in neutral besides trying to look/sound stupid, save your enthusiasm for when your up next at the line! geeze, this thread is just