rev limiter

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Oct 19, 2011 | 09:55 AM

#21

cameraboy

Outstanding HDF Member

Joined: Sep 2010

Posts: 2,808

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man, now I don't know what to do...

Oct 19, 2011 | 10:01 AM

#22

xFreebirdx

Ultimate HDF Member

Joined: Mar 2008

Posts: 7,604

Likes: 38

From: Landrum, SC , elevation 986'

Quote:

Originally Posted by cameraboy

man, now I don't know what to do...

Do a stage one and put those Xied thingys on. Everyone seems to think there great...........

Oct 19, 2011 | 10:55 AM

#23

ShAwTWiN

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Joined: Aug 2011

Posts: 97

Likes: 0

From: Quebec, Canada

This is my results after Stage 1 (PC3 + K&N Air Filter in stock intake + V&H Short Shots):

There is no point reving it over 5.5K RPM....

The results:

Stock HP: 58.9 @ 5450 RPM

Stock Torque (lbs-ft): 70 @ 3250 RPM

Tuned HP: 69.9 @ 5450 RPM

Tuned Torque (lbs-ft): 75 @ 4250 RPM

Last edited by ShAwTWiN; Oct 19, 2011 at 10:59 AM.

Oct 19, 2011 | 06:50 PM

#24

bwana1

Road Warrior

Joined: Feb 2009

Posts: 1,727

Likes: 11

From: TN

Quote:

Originally Posted by ShAwTWiN

This is my results after Stage 1 (PC3 + K&N Air Filter in stock intake + V&H Short Shots):

There is no point reving it over 5.5K RPM....

The results:

Stock HP: 58.9 @ 5450 RPM

Stock Torque (lbs-ft): 70 @ 3250 RPM

Tuned HP: 69.9 @ 5450 RPM

Tuned Torque (lbs-ft): 75 @ 4250 RPM

What year, what engine?

Oct 20, 2011 | 10:47 AM

#25

beanerblank

Tourer

Joined: Apr 2009

Posts: 330

Likes: 2

From: IL

Quote:

Originally Posted by Shredding rubber

Not the EPA compliant Harley stage 1 download. It doesn't richen anything. Now if you get a tuner or a fuel pak from the aftermarket those devices will improve the a/f ratio. Not the Harley one. The Harley download has to follow the mandated emission requirements so it will increase rev-limit. Might improve WOT a/f but cruising a/f will remain 14.7-1 for mileage and emissions. What would be the maximum safe limit on stock valvetrain before valvefloat occurs I wonder?

That is what an HD tech friend of mine told me.

Oct 20, 2011 | 11:39 AM

#26

schwingding

Road Master

Joined: Jul 2010

Posts: 1,051

Likes: 7

There can indeed be good reasons to continue running your engine past the HP or torque maximum - it has to do with gearing. It is quite possible that you will still find acceleration beyond the max power range in excess of what you might in the next gear at a lower RPM. TOTALLY possible.