How do you disable the rev limiter on a honda st1100
- Thread starter TEDilores
- Start date
John OoSTerhuis
Life Is Good!
I would like to know how to either adjust the rev limiter a bit higher or disable it altogether on my 1999 ST1100.
Thanks
Why? To what purpose?
I would like to know how to either adjust the rev limiter a bit higher or disable it altogether on my 1999 ST1100.
Thanks
Built partially into ignition so folks who fail to understand torque/horsepower limits leave it as is.....
.
If you have to ask this question, you are probably better off leaving it alone. The ST1100 has a hard enough time breathing at the higher revs and that is the main reason for the rev limit set where it is.
scootac
Will Ride for Food
Nothing like discouraging creativity and experimentation!!!
"You guys are nuts if you think that thing will ever get off the ground" said by Bishop Milton to Orville and Wilbur.
"You guys are nuts if you think that thing will ever get off the ground" said by Bishop Milton to Orville and Wilbur.
I learned something - I didn't know the ST1100 had a rev limiter.
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I have banged the rev limiter numerous times. The torque and horsepower curves are already falling off at that point. Only reason to change it higher would be if "hot-rodding" the motor which would call for more aggressive cams at a minimum. Far as I know, there are none available. In fact, the early years (91-92-93?) cams are slightly more aggressive than later years. I know my 01 ABS had milder cams than either of my 91s with no loss of power or performance. I can look up the details if anyone is really interested.
Cheaper and easier to upgrade to a 1300 or an FJR.
Cheaper and easier to upgrade to a 1300 or an FJR.
wjbertrand
Ventura Highway
Lots of folks have tried increasing the horspower of ST1100s. To my knowledge no one has succeeded in adding more the 1-2 HP while at the same time destroying the driveability of the bike. Significant valve/head work would be needed to take advantage of any raised redline.
Yup.......8K rpm.
STurgisSTeele
When did I become the "Old Man"!?
Same here. Never got the revs that high.
being a interference engine I wonder at what rpm the valves start to float and hit the pistons??
8001 rpm. Or whenever the belt breaks...
Uncle Phil
Site Supporter
And you sure don't want to hit when you are passing someone ....
What happens ?
How's the ankle?
ST1100Y
Site Supporter
LOL! :crackup<cleaning keyboard, screen and desk from nostril coffee-spray...>
Right on, highest torque: 4200rpm, highest output: ~6500rpm...
rev limiter kicks in at ~8500rpm... preventing over-stressing casing, bearings/journals, connection rods, valve-springs, bunch of other delicate/vital/expensive items in there...
Yup, got that right UP...And you sure don't want to hit when you are passing someone ....
But that's operator error, cause once you've learned to use all that power avail between >3500 and <7000rpm, you never get into that regions again...
Uncle Phil
Site Supporter
The revs are 'limited' and the engine tends to cut out - not something you need in a passing situation. ;-)
The ankle is about the same - sore.
ReSTored
Site Supporter
Yes, happened to me once through my inattentiveness as to what gear I was in and starting RPM, suddenly no power, and I was abreast of the car I was planning to pass. Brakes on and pulled back in behind the car to regroup. No real issue as there was lots of room and minimal traffic, but the cut off in power really caught me by surprise.
So it is a sudden loss of power ?.. (the engine doesn't just shut down).
Uncle Phil
Site Supporter
The best way I can describe it is that the engine starts cutting out - sort like it is running out of gas.
It probably retards the timing so that burning efficiency is diminished, thus less power without actually killing the engine. That's my guess anyway.