Civinfo - View Single Post - Other What does it mean? "Buzzing the engine"

TypeRiter · 31st July 2009, 07:37

Buzzing usually occurs when one changes down to a gear that is too low for the speed the car is travelling at (and, the engine is spinning at) resulting in the the rev's exceeding the imposed limiter.

So for example.. If you are cruising at 70 mph in 6th gear doing approx 3,000 - 3,500rpm, but want to go faster, you could drop down to 3rd gear which would result in the revs spinning to about 6500pm (approx) and put you back in the vtec zone to provide the surge you were after... but if you by mistake, say, put the car into 2nd gear, it's possible that 70mph is just too much for 2nd gear to handle - which will cause the engine rpm's to spin above 8,000rpm (The limit in the Type-R). The forced, uncontrollable, spinning of the engine above 8,000rpms is what is referred to as buzzing. Because 70mph is too much for the 2nd gear to handle, the car effectively goes into a forced 'overdrive'

The redline, rev-limiter, can only limit revs on 'normal' acceleration, it is unable to limit the overdrive I spoke about.

Hitting the Redline is not particularly detrimental on normal acceleration (on the way up) - it is in place to prevent damage to the engine... but that said it would not be wise to hit the limiter in every gear, every day, for the duration of your ownership. It's in place for that over-enthusiastic, rev-hungry mistake, and can handle those mistakes.. but I wouldn't knowingly do it all the time.

As for the ECU, I don't think you can remove it or the limiter as such but there is a mod called Hondata, which has the ability to raise the rev-limiter, and broaden the v-tec zone. I believe with Hondata the vtec zone starts at 3,800rpm, as opposed to 5,400. Hondata pushes the limiter upto 8,600rpm from the standard 8,000rpm.

Hope that helps

31st July 2009, 07:37	#2 (permalink)
TypeRiter Sold a kidney last week! Car: Nighthawk Black EP3 Join Date: 27th May 2009 Location: Ealing Posts: 3,313 Thanks: 145 Thanked 169 Times in 166 Posts iTrader: (6)	Buzzing usually occurs when one changes down to a gear that is too low for the speed the car is travelling at (and, the engine is spinning at) resulting in the the rev's exceeding the imposed limiter. So for example.. If you are cruising at 70 mph in 6th gear doing approx 3,000 - 3,500rpm, but want to go faster, you could drop down to 3rd gear which would result in the revs spinning to about 6500pm (approx) and put you back in the vtec zone to provide the surge you were after... but if you by mistake, say, put the car into 2nd gear, it's possible that 70mph is just too much for 2nd gear to handle - which will cause the engine rpm's to spin above 8,000rpm (The limit in the Type-R). The forced, uncontrollable, spinning of the engine above 8,000rpms is what is referred to as buzzing. Because 70mph is too much for the 2nd gear to handle, the car effectively goes into a forced 'overdrive' The redline, rev-limiter, can only limit revs on 'normal' acceleration, it is unable to limit the overdrive I spoke about. Hitting the Redline is not particularly detrimental on normal acceleration (on the way up) - it is in place to prevent damage to the engine... but that said it would not be wise to hit the limiter in every gear, every day, for the duration of your ownership. It's in place for that over-enthusiastic, rev-hungry mistake, and can handle those mistakes.. but I wouldn't knowingly do it all the time. As for the ECU, I don't think you can remove it or the limiter as such but there is a mod called Hondata, which has the ability to raise the rev-limiter, and broaden the v-tec zone. I believe with Hondata the vtec zone starts at 3,800rpm, as opposed to 5,400. Hondata pushes the limiter upto 8,600rpm from the standard 8,000rpm. Hope that helps Last edited by TypeRiter; 31st July 2009 at 08:20.