Another true duals question

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Jul 26, 2016 | 09:29 AM

#11

ramx50

Cruiser

Joined: Oct 2012

Posts: 155

Likes: 7

From: Boston MA

Quote:

Originally Posted by jdw1

That's consistent with what I was told by a V&H guy at there trailer at Sturgis last year, he said it was 8 hp. I have true duels on my 12 FLHTK and I don't care for them, but it's subjective to each individual. JMO

I was told the same by V&H but it is nice to have real world facts to back it up and not just the "sales pitch" from the factory. It is also nice to know that what V&H says is true and backed up by a neutral dyno test.

I agree some guys like the look of the true duels and some like the look of the power duals better. I have the power duals and monster rounds on my 11 SG and I love the sound it puts out with my procharger.

A true 2-1 (like the pro pipe) will give you the most power but again not everyone likes the look of a 2-1 on a bagger.

Last edited by ramx50; Jul 26, 2016 at 09:33 AM.

Jul 26, 2016 | 09:47 AM

#12

grbrown

Club Member

Joined: Jun 2007

Posts: 45,429

Likes: 2,897

From: Bedford UK

Quote:

Originally Posted by EdwardK

Someone with more knowledge than me may correct me but the loss of torque with true duals compared to the 2-1-2 shows more on the paper than the butt dyno. I've had all three types of pipes ( duals, 2-1, 2-1-2 ) and I still love my Rinehart True Duals on my RKC the best. The sound is awesome and they run the coolest. I don't care that it has a few ft lb's less than it could be with other pipes.

When a bike is tuned well, can you really tell the difference between 100 ft lb's and 95 ft lb's?

I currently have a Supertrapp 2-into-1 on my bike, previously ran TDs and had the bike dynoed by the same shop with both systems. The headline numbers for both were almost the same, however the TDs were more like 15 ft lbs lower, in the rev range most of ride in. That is definitely noticable!

The main difference I found is how much smoother running and down-right nicer my bike is with the 2-into-1. The improved torque is well worthwhile, but the icing and cherry on the cake is how much better it is to ride.

So in my experience there is more to this than just numbers!

Jul 27, 2016 | 07:45 AM

#13

cajun1957a

Thread Starter

Road Warrior

Joined: Sep 2007

Posts: 1,252

Likes: 141

So has anyone put TDs on an 88 and ran the dyno twice. Once with and once without to see the real difference? I was thinking of going with the True duals kit from FulSac. Just the j pipe, and extention pipe. Their kits seems simple enough and the price makes more sence. Has any one ever tried this? Assuming I do that is.

http://fullsac.com/product/true-dual...8-flh-touring/

randy