Power duals question

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Sep 10, 2012 | 01:31 PM

#11

Grillfish

Road Captain

Joined: Jan 2010

Posts: 527

Likes: 2

From: Volusia County, FL

Quote:

Originally Posted by glcash

Just talked to VH Tech support. The old version for 2010 has 02 ports that stick out more. the newer version has the flatter 02 ports. Both head pipes have the sensors in the same location. I will go with the old version since they are in stock. New version are on back order until mid October.

I'd wait and get the new flat plane 02 ports. Better reading and if you are ever doing your own tuning, TTs, SEPro, PV, should help. V&H made the right move to cut down the 02 bungs.

Sep 10, 2012 | 01:39 PM

#12

mkguitar

Extreme HDF Member

Joined: Sep 2010

Posts: 14,744

Likes: 402

From: Phoenix '53, '88, '09 Big Twins

the power duals can hit hard on right turns on a lowered bike.

hard enough to relieve traction from the rear tire- esp if there is a dip in the middle of a turn

just be aware of this- it is the cover over the X pipe that hits.

your bike is stock 1" lowered in the back already, if you lower the front too this could be a concern

( on a touring bike, the bottom of the fork cowbells is about 3/8" lower than the top of the fender- stock. if the forks have been lowered, they will be about 1 3/8" below).

also the clamp of the crossover needs to be oriented so that nothing is hanging down- like excess threaded rod, if the clamp cannot be turned cut the excess thread off.

this clamp can grab a speed bump an tear the exhaust off.

and the new torque spec for the tranny end cover bolts is 25 foot pounds

left is lowered, right is stock height.

the one on the left I almost lost it...

Mike

Last edited by mkguitar; Sep 10, 2012 at 01:43 PM.

Sep 10, 2012 | 03:06 PM

#13

glcash

Thread Starter

Road Warrior

Joined: May 2009

Posts: 1,770

Likes: 34

From: Bluegrass State

Quote:

Originally Posted by Grillfish

I'd wait and get the new flat plane 02 ports. Better reading and if you are ever doing your own tuning, TTs, SEPro, PV, should help. V&H made the right move to cut down the 02 bungs.

Good idea

Sep 10, 2012 | 04:03 PM

#14

equandt

Road Warrior

Joined: Aug 2006

Posts: 1,575

Likes: 7

From: Wisconsin

I believe the Terry Comp unit uses your stock O2 sensors to measure and adjust the A/F ratio. I don't think it will adjust timing.

They aren't real popular but the guys that have them seem to think they are OK.

My brother has one on his dyna. The bike runs fine. I can't speak to the power it makes as he hasn't had it on a dyno...but I guess that is the point with the Terry Comp tuner.

Sep 10, 2012 | 04:10 PM

#15

glcash

Thread Starter

Road Warrior

Joined: May 2009

Posts: 1,770

Likes: 34

From: Bluegrass State

I've never seen or heard if it until I seen it on my bike. Bike runs fine. Haven' had any issues. I'll leave it until it fails.

Sep 10, 2012 | 05:13 PM

#16

bob2002

Road Master

Joined: Sep 2006

Posts: 999

Likes: 7

From: Allentown,Pa.

I had a Terry tuner on my 07 Ultra and I discovered after I replaced it that it worked as well as the power commander I used in its place did.My 07 was such a POS it was hard to tell what really worked.I would give it a chance what do you have to lose.