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Electra X Performance Kits #152489
05/15/07 10:24 am
05/15/07 10:24 am
Joined: Apr 2007
Posts: 9
Virginia, USA
O
OldBritThumper Offline OP
BritBike Forum
OldBritThumper  Offline OP
BritBike Forum
O
Joined: Apr 2007
Posts: 9
Virginia, USA
Does anyone have experience with the following three Electra X performance kits?

(US)
http://www.royalenfieldusa.com/electrax-bullet-performance-p-7014.html

(UK)
http://www.royal-enfield.com/RoyalEnfield_Cat2006_07.pdf see ***page 4***

The US site description is:

Item: *CMW Electra-X (or Bullet) Performance Kit NEW

Main Category: Performance

Product Code: Z91207

We have been putting together our own Electra Performance Kit for our Royal Enfield motorcycle family, and think we have found a winning solution. We have been working with a company that has developed a reasonably priced performance carburetor just for our vintage British style bike. It is a 30mm Kehin type carburetor which has a chrome flat slide and passes fuel like a 32mm without the disadvantages of a larger venturi size. Using this carburetor and our performance RE Classic Exhaust System we have found a combination that not only produces more HP, but also more torque throughout the entire RPM range. You can often lose something like low-end torque with a larger carburetor, but this system is all gain, no pain. We have also tested a similar combination on the regular Bullet with great results. The kit includes the RE Classic Exhaust System, the Flat-Slide Carburetor and Jet Kit, a K&N Pancake Air Filter, a Throttle Cable, all necessary bolts and spacers. Note: The restrictive Air Box and OEM Air Filter (designed on the Electra in particular for pinnacle fuel economy) is replaced with the free-flowing K&N Pancake Air Filter to make the flat-slide carb work efficiently for your Electra. Discounted from the whole price of $465.35! Specify Electra or Bullet. (RE Classic Exhaust shown below.)


The Watsonian Description is:

‘Highway kit’ – boost power by 6bhp on
the new Electra X with the lean burn
engine. Includes carb, silencer,
manifold, air filter & fixings. Improves all
round usability, acceleration & mid
range. (Requires airbox modifications)
£299


The third kit is Hitchcock's AMAL kit "AMAL CARBURETTER/FILTER CONVERSION KIT (500cc Electra X)" at http://www.hitchcocksmotorcycles.com/list_products.php?pid=2

It comes with an exhaust header, but no silencer/muffler.

Here is the description:
After a lot of work on the road and dyno we have come up with this simple performance kit which has been developed purely for the 500 Electra. The standard Electra develops just 17bhp at the rear wheel. The standard engine is designed to run very weak and therefore is manufactured to meet this criteria. We have tried tuning the standard CV carb, but have been unable to get satisfactory results when compared to the AMAL. The standard air filter box is very restrictive and whilst it will supply enough air for the standard CV carburetter it will not work with the AMAL version so it is essential that the supplied S&B air filter is used. The 1st part of this is the carburetter kit. It comprises of a 32mm MK1 AMAL Concentric carburetter, CNC machined alloy manifold adaptor and special fixings, cables, choke lever, S&B air filter and all necessary gaskets and fixings. The 2nd part of the kit is the exhaust pipe. The standard exhaust pipe, again is designed to restrict the flow to make this a lean burn engine and this restricts any potential performance gain. Our replacement exhaust pipe has no restrictions. The 3rd part of the kit is a plug to blank off the PAV fitting on the cylinder head, again it is essential that the PAV system is removed. This kit increases the power at the rear wheel to 23.7bhp. An increase of nearly 40% and this retains the standard Indian made silencer. There is still a small gain to be made if the silencer is replaced as well. This gives more performance gains than similar kits available!

Opinions? Results?

TIA,
Matt

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Re: Electra X Performance Kits #152490
05/15/07 1:32 pm
05/15/07 1:32 pm

A
Anonymous
Unregistered
Anonymous
Unregistered
A


Did they mention replacing the crankshaft assembly?

Re: Electra X Performance Kits #152491
06/06/07 6:35 am
06/06/07 6:35 am
Joined: Oct 2006
Posts: 39
UK
M
Mark Woodward Offline
BritBike Forum member
Mark Woodward  Offline
BritBike Forum member
M
Joined: Oct 2006
Posts: 39
UK
I have just purchased a new Electra X fitted by Watsonian-Squire with the 'Highway Kit'. As I've not ridden any form of Bullet before I cannot comment on its performance etc. but it does perform better than I expected (I'm still running-in though). The only slight 'pain' is the location of the choke lever on the Del-Orto carb - it's very fiddly to reach with gloves on.

Re: Electra X Performance Kits #152492
06/15/07 10:24 am
06/15/07 10:24 am
Joined: Apr 2007
Posts: 9
Virginia, USA
O
OldBritThumper Offline OP
BritBike Forum
OldBritThumper  Offline OP
BritBike Forum
O
Joined: Apr 2007
Posts: 9
Virginia, USA
I am *extremely* happy to report that the Hitchcock's Performance Kit
is now installed on my Electra X. At some point I will post details
and pictures in case anyone might find them useful.

For now though, here are the highlights:

* I now have a thumper instead of an Electric Honda 250!

* It is louder than I expected!

* It is harsher sounding than previous thumpers I've owned

* It runs smoothly and strong through all throttle positions

* At 67 mph with throttle wide open and engine wailing, I felt like I
was going 87!
(Bugs in teeth grin)

Set-up:
- Goldy-style muffler without using the internal baffle
- AMAL needle in middle groove
- Left the supplied air filter unoiled

Most notable fact:
Follow the AMAL tuning guide!

After ensuring that the main jet was correct for full throttle
running, the next step was the idle circuit. The bike was not running
well at other throttle positions. (Backfiring and almost felt rich
like the needle needed to be lowered one position).

So, according to the procedures I tackled the idle circuit with the
engine fully warmed. I took it back out on the road and the other
problems were gone! Which is really good because I didn't
particularly want this to become some grueling chore.

I'm now shifting later (higher RPMs and road speed). The bike is
exceptionally strong; although I'm sure the sound affects my
judgement.

Matt

Re: Electra X Performance Kits #152493
06/16/07 7:38 pm
06/16/07 7:38 pm
Joined: Apr 2007
Posts: 9
Virginia, USA
O
OldBritThumper Offline OP
BritBike Forum
OldBritThumper  Offline OP
BritBike Forum
O
Joined: Apr 2007
Posts: 9
Virginia, USA
Here are the notes I've assembled for installing the Hitchcock's performance kit on my 2006 US-market Electra X. Hope someone might find them useful:

http://members.verizon.net/allofusmorrows/PerfUpgrade.htm

Warning: the pix are hi-res.



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