Power cones

jwoolf · Nov 20, 2007

Looks kind of like they just add a little backpressure so, you're supposed to see a big increase in midrange power with something like this over completely open pipes.

Lots of folks here just took their stock baffles out and cut them in half and re-installed the baffles.

Others have gotten these, although they're more expensive than the one's you've listed there.

http://www.bigcitythunder.com/pages/product-fit.html

Vegas · Nov 20, 2007

Your basically choking your engine or putting a step in the pipe. You may as well cut down your baffles. I think cutting them in half is the best performance option. I've run mine with them in and completely out. With them in you have gobs of torque but falls off sharply top end. I took them out and now lost alot of the bottom end but it is wicked fast up top especially with the .600 camshaft. I think cutting them in half would be a good compromise and I just may do that to mine eventually.

FatDog · Nov 20, 2007

I've run stock BR baffles, cut down stock baffles and the Big City Thunder and I personally like the BCT the best.

chacha · Nov 20, 2007

Had the same experience as Vegas on a set of Ness Side-outs. Ended up running without the tourque cones and a set of BCT baffles. I wanted the response at the higher end as I do most of my day darting thru cagers on the highway...

WB Cycles · Nov 20, 2007

I have BR on the chopper (from V&H not BDM) and just removed the baffles completely. Had to re-jet after adding the spike intake, but love them. We talked about adding power cones before (BDM service manager) but decided in the end not to do it. May have lost some of the low end, but then again I don't take the chopper to the dragstrip either.

Gonna have to try taking my original exhausts and cutting them up though after reading through all the threads. If for nothing else than to see how much louder they get.

seatmaker · Nov 20, 2007

How bout the power booster for the carb? Wonder if that does anything.

Gas Man · Nov 21, 2007

Seat the power booster is the fuel atomizer.... which is also part of getting it XXX'ed.

I have heard these cones are BS. But I have no data to support... maybe some of the other guys like Alhall or Sul will.

rwill20 · Nov 21, 2007

Read somewhere the big inch motors,well,not to bother with them, at the time I was looking into them,wish I could remember where,sorry,I just put baffels back in .

Bulldog03 · Nov 21, 2007

lee said:
Has anyone seen the Khrome Werks power cones you put in your exhaust? Does anyone know if they work? For only $20-$30 they might be worth a try.

Cheers
Lee

I just installed some cones today, :lol: got them on e-bay, search power cones, don't know about HP/TQ I don't know where to get a dyno done, running the Martin Bros Trixstas, I still have popping on downshift and haven't really taken a road cruz yet, but what do I know I just started rolling, :loony: step by step.

Lone Dog · Nov 21, 2007

I had them on a set of open drag pipes I had on my old shovelhead. I really didn't notice that they made a difference. Putting baffles in those drags made life better. But that was a 74" motor. Based on my experience I would say skip 'em.

Bulldog03 · Nov 22, 2007

BLITZKRIEG said:
There is the Theory that Power Cones do Nothing for you on anything over 100CU, One of my Brothers was Running em on a 113 and eventually he took them out. I'll talk to him about what and why.

So what was the verdict? what did your brother have to say about the cones?
I'd like to take advice from people who've tried them out ....guess I got caught up in the sale pitch and the SHINEY new toy

BIGVICK35 · Nov 24, 2007

lee said:
Has anyone seen the Khrome Werks power cones you put in your exhaust? Does anyone know if they work? For only $20-$30 they might be worth a try.

Here is a link to some background info. I thought interesting because the exhaust can make one of the biggest differences in performance and looks but the two don't always go together.

http://www.midstatecycles.com/productssection.html

Cheers
Lee

Lee where are you located? I am from the same town that shop is in and have delt with them quite allot. Just curious. Thanks Vick

slowrower · Nov 24, 2007

Time for a supercharger .. :lol: :lol: :lol:

omahabiker · Nov 27, 2007

FatDog said:
I've run stock BR baffles, cut down stock baffles and the Big City Thunder and I personally like the BCT the best.

Which size Big City Thunder Monster baffles did you order for your V&H Big Radius pipes? I want to order some for my 07 K9, but want to make sure I get the right size. Do you recall which ones you bought?

P8RIOT · Nov 27, 2007

Just buy the used ones Gas Man has for sale in this thread:

http://www.bigdogbiker.com/forums/showthread.php?t=1117&page=2

"I'm also going to add a slightly used set of Big City Thunder Baffles for sale. $40 shipped"

"The Big City thunder baffles are 1 7/8" for 2" OD pipe part #2002"

Or, just Google Big City Thunder and then call the dude on the phone - nice guy - he'll send you the right ones.

Gas Man · Nov 27, 2007

Yes and thank you p8riot for mentioning it. If you want them PM me

omahabiker · Nov 27, 2007

P8RIOT said:
Just buy the used ones Gas Man has for sale in this thread:

http://www.bigdogbiker.com/forums/showthread.php?t=1117&page=2

"I'm also going to add a slightly used set of Big City Thunder Baffles for sale. $40 shipped"

"The Big City thunder baffles are 1 7/8" for 2" OD pipe part #2002"

Or, just Google Big City Thunder and then call the dude on the phone - nice guy - he'll send you the right ones.

Thanks for the info! That works out perfectly.

skully · Nov 27, 2007

i've run 9 or so differant pipe set ups on my k-9. none for any length time with baffles. i've also run with and with cones. my prefferance is with cones. i like the over all feel though all the gears. with the new pipes i just built there is a solid pull though all gears with no drop off at top end.
cones are designed to increase back pressure just as baffels. of course they don't produce as much.

BIG AL, these are little more quite than the big pipe i had on there. LOL

Power cones

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Chaff Your EHC!!

Well-Known Member

Well-Known Member

Cool isn't cheap

Well-Known Member

POIDOG

Motorcycle Junkie

POIDOG

Member

2007 Mastiff

Member

Well-Known Member

Cool isn't cheap

Well-Known Member

Member

Active Member