Author Topic: How much can I raise the rev limiter without engine damage? (Read 889 times) Tweet

Mike-Nightrider · « **on:** January 28, 2010, 03:38:17 PM »

I want to raise the rev limiter of my gen1 turbo Busa.
What do you think, what rpm's could get critical to the engine components.
Do you have any experience?

I plan to raise it up to app. 11200 (hard cut)

Thanks in advance,

Mike

Mike-Nightrider · « **Reply #1 on:** January 28, 2010, 03:40:54 PM »

Sorry, I forgot to say that Ive installed crower rods and JE pistons.
The head with cams, valves and valve-springs is still stock.

Yngve · « **Reply #2 on:** January 28, 2010, 04:21:05 PM »

I have run 11.300 rpm on my Yosh cammed NAengine for years. No problems.
(stock valves and stock springs )
What the boost does however I havent got a clue.

THEMOTORHEAD · « **Reply #3 on:** January 28, 2010, 05:39:26 PM »

DEPENDS ON BOOST ETC BUT SHOULD BE FINE IF BOOST IS NOT REAL HIGH LIKE ABOVE 14# OR SO

Mike-Nightrider · « **Reply #4 on:** January 28, 2010, 05:56:08 PM »

Oh, its my dragbike. Max. boost is about 25 - 28 psi.

sportbikeryder · « **Reply #5 on:** January 28, 2010, 06:51:15 PM »

Quote from: THEMOTORHEAD on January 28, 2010, 05:39:26 PM

DEPENDS ON BOOST ETC BUT SHOULD BE FINE IF BOOST IS NOT REAL HIGH LIKE ABOVE 14# OR SO

Does it really make a difference that it is turbcharged and making big power as to how high you rev it? How are Horsepower and how high you rev the internals related (other than maybe high manifold pressure causing the valves to not have enough net seat force? I'd rev it until it stops making power as long as you have low lift cams and good spings. Might not even make power at high revs.

busa2001 · « **Reply #6 on:** January 28, 2010, 11:57:21 PM »

my rev limiter is set at 12k...

TrickTom1 · « **Reply #7 on:** January 29, 2010, 07:29:21 AM »

Mines been at 12000 too. Need to get some springs.

Mike-Nightrider · « **Reply #8 on:** January 29, 2010, 08:56:53 AM »

Thanks for the information guys

I think I will set the rev limiter at 11200 at the beginning.
We will see what happened on the dyno next time

News:

Author Topic: How much can I raise the rev limiter without engine damage? (Read 889 times) Tweet

Mike-Nightrider

How much can I raise the rev limiter without engine damage?

Mike-Nightrider

Re: How much can I raise the rev limiter without engine damage?

Yngve

Re: How much can I raise the rev limiter without engine damage?

THEMOTORHEAD

Re: How much can I raise the rev limiter without engine damage?

Mike-Nightrider

Re: How much can I raise the rev limiter without engine damage?

sportbikeryder

Re: How much can I raise the rev limiter without engine damage?

busa2001

Re: How much can I raise the rev limiter without engine damage?

TrickTom1

Re: How much can I raise the rev limiter without engine damage?

Mike-Nightrider

Re: How much can I raise the rev limiter without engine damage?