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Message started by LANCER on 02/23/17 at 07:21:57

Title: Sporty test // REX
Post by LANCER on 02/23/17 at 07:21:57

Took my sportster to a local shop with a Dyno yesterday for a Baseline run, the BEFORE run.
My local shop is just 55 miles away...oh yea, but it was a nice ride each way with shirt sleeve weather for a change.

Here is the result.

The transfer of the graphs for a printout copy-scan-photo program-savage site, leaves a little to be desired but you can see them.

Top graph shows torque on top and HP on bottom.
Peak torque 77.91 @ 4350 rpm & peak HP 72.34 @ 5520
Notice how the torque curve follows the same basic shape as the fuel/air mix curves. As the fuel/air mix goes rich (about 11:1) the torque curve drops.

Middle graph shows #1 cylinder (front) fuel air mixtures at rpm along the graph.

Bottom graph shows #2 cylinder (rear) fuel air mixtures at rpm along the graph.

The fuel/air mixtures on both cylinders show a lean area (15:1 & 16:1) coming off idle (2100-2600) and then dipping into a rich area (2600-3600) and from then on to max rpm they stayed very close to the red dotted line which is considered ideal at 13.4:1. The operator, Sam, said it was close to a sportster with fuel injection. He said this was much better than the vast majority of sportster that he sees.
Sam and his brothers and mother (Lucy) own & run K&N Motorcycles in Sapulpua, OK. The shop was started by their father who was one of the two original creators of K&N. This shop is the oldest Yamaha shop in the US, they started selling Yamaha's in 1958. One of their tech's was named #1 Yamaha tech in the US a few years ago. I like this place.
The extra lines on the graphs that start at the end of each graph and trail back about half way are just the computer/printer effect after the engine reached the rpm at which the engine cut off occurred, so they are not part of the actual run.

http://https://s26.postimg.org/l3veployh/Scan.jpg

NOTE from website:

K&N Engineering Inc

K&N Engineering Inc. was founded in 1955 by good friends Kenny Johnson and Norm McDonald. The two friends were very involved in motorcycles and were constantly trying to improve the sport. The goal of starting K&N Engineering was to serve the motorcycle, automotive, and high-performance street markets, with a revolutionary new product they had originally developed for Team K&N Racing. This revolutionary new product was a unique high-flow, washable and reusable air filter. The newly developed "Filtercharger" became a success with racers, creating a high demand for this incredible product!

Before they knew it, Kenny and Norm with full time air filter manufacturers, on top of running 6 motorcycle shops, an insurance agency, and a bar. As time progressed, they expanded the K&N Engineering line of products, this included purchasing a chrome plating shop and a tube bending machine to build race handlebars and other accessories, which soon expanded into a full line of bars for all motorcycles! Today, you can find K&N air filters at almost every type of race event going on all over the world, accompanied by many winner's circle appearances.

In 1971, Norm decided to focus more on the retail end of the motorcycle business, and moved to Tulsa, OK along with his wife Lucy and their 4 children, Phil, Terry, Pat, and Sam. Kenny continued the K&N Engineering side of the business in Riverside, CA, where the business is still located today! While the size of the business has grown, from a two man operation in Norm's garage, to a 700 employee operation working out of a 300,000 square ft. building, the tradition, quality, and reputation of the K&N Engineering line of products continues the legacy that legends Kenny Johnson and Norm McDonald started.

K&N Motorcycles is a proud carrier of the K&N Engineering line of products!

Title: Re: Sporty test
Post by Ruttly on 02/23/17 at 10:10:07

That was the before , what are the plans for the after test ?

Title: Re: Sporty test
Post by LANCER on 02/23/17 at 12:46:57

032425253D28510 wrote:

That was the before , what are the plans for the after test ?

38mm VM with UFO, DAJ, quad wing & and a secret thing or maybe two.
Just want to find out what the increase is with the carb swap, and if so then I will put the Kit up for sale on the XL forum.
There are a lot more sporty's out there than there are LS50's.
Maybe a few more $$$ :) 8-)

Title: Re: Sporty test
Post by justin_o_guy2 on 02/23/17 at 16:38:37

Drag multiplies at a squared rate as speed increases.
Overcoming that drag requires cubic money.

efore they knew it, Kenny and Norm with full time air filter manufacturers, on top of running 6 motorcycle shops, an insurance agency, and a bar.

If you're doing all That, you NEED a bar.

Title: Re: Sporty test
Post by MMRanch on 02/23/17 at 17:03:38

Lancer , what year Sporty ya got ?

Title: Re: Sporty test
Post by LANCER on 02/24/17 at 03:07:46

435143515C4F404D460E0 wrote:

Lancer , what year Sporty ya got ?

2005

Title: Re: Sporty test
Post by MMRanch on 02/24/17 at 06:25:12

Lancer

I've got a 2007 )fuel injected) and wish it was an 05 (carb.) , I had a 04-1200 that had the carb. and it used less fuel and was "Tune-able" .
I've been cruising ebay for a 04-06 883 but havent found the right one yet .
Here is my 07 - 883

Title: Re: Sporty test
Post by LANCER on 02/24/17 at 10:54:32

MM your first problem is your exhaust, the two shorty pipes do your engine no favors. A good 2-1 exhaust will do wonders for your torque curve. I have a Danmoto 2-1 stainless exhaust that only costs about $350 and it works and sounds really freaking great. The quality is excellent too.
It a direct bolt on.
Take a look at them.

Title: Re: Sporty test
Post by Kris01 on 02/24/17 at 16:06:25

I read your numbers and thought "A SAVAGE!?!?!?!?" :o

Nope. A Sportster. Ya had me going for a sec! :D

Title: Re: Sporty test
Post by gizzo on 02/24/17 at 17:19:55

So you're happy with the Danmoto? I was thinking about it for my Monster but had read a bunch of stuff about them being crazy loud, even with db killer. Maybe its worth another look, they're certainly affordable enough.

Title: Re: Sporty test
Post by LANCER on 02/24/17 at 18:27:16

13090D0F0E300112141209040705600 wrote:

I find the muffler on the Danmoto to be very moderate in sound level, and it is a good clean sound, not harsh or raspy, and quite mellow. I really like the sound all the way through the range. When you get to the upper end of the range it is WAILING ! IT SOUNDS GREAT !
I will try to get a recording.

Title: Re: Sporty test
Post by MMRanch on 02/24/17 at 22:05:55

Thanks for the tip .

If it had more "ummph " to it , I'd be hitting the vehicle in front of me instead of passing it ! ;D

I made my own baffles . ;) , They are just a little louder than stock .

This is the one you got : http://www.jpcycles.com/product/832-797

Title: Re: Sporty test
Post by LANCER on 02/26/17 at 15:37:32

1C0E1C0E03101F1219510 wrote:

I thought I had posted on this before but apparently it did not make it.
Yes, this the same exhaust I have, the only difference is the price is less now. $279 is a great deal.

Title: Re: Sporty test
Post by Ruttly on 02/26/17 at 16:30:11

Yes the scavenging effect with a 2 into 1 exhaust gives much better performance and I love the way it sounds in comparison to the standard Harley dual pipes! I'm curious of your projects results so please post them.
I'm liking the fact the we are posting on our other projects as well as our Savages. It shows our diversity and keeps things interesting !

Title: Re: Sporty test
Post by LANCER on 02/26/17 at 17:48:26

4B6C6D6D7560190 wrote:

Two projects going right now, trying to work out the "Basic wiring" on REX, which is not easy for someone who is electrically challenged, and a carb swap for the sporty. When done it is back to the Dyno for both.

Title: Re: Sporty test // REX
Post by LANCER on 03/19/17 at 13:23:51

Some have asked about a photo of REX, and I finally found one.
This was taken a while ago and is a bit different of what he will look like this May.

http://https://www.bikepics.com/pics/2010/08/12/bikepics-2037924-984.jpg

Title: Re: Sporty test // REX
Post by Ruttly on 03/19/17 at 19:21:42

Looks Evil , something to beware of , Love to take it for a jaunt !

Title: Re: Sporty test // REX
Post by Ruttly on 03/19/17 at 21:43:03

What are Rex's sprocket sizes ?

Title: Re: Sporty test // REX
Post by LANCER on 03/20/17 at 02:44:41

06212020382D540 wrote:

What are Rex's sprocket sizes ?

I have a 16/45 set on there now, which replaced the 17/43 set which was just way to high. The 16/45 is just slightly more than the stock gearing with the belt.

Title: Re: Sporty test // REX
Post by Ruttly on 03/20/17 at 05:59:13

Something tells me it has enough power to pull either set !

Title: Re: Sporty test // REX
Post by justin_o_guy2 on 03/20/17 at 10:22:39

I Wonder who has the lightest, gnarliest , savagest Savage.

Title: Re: Sporty test // REX
Post by Ruttly on 03/20/17 at 12:26:17

Lightest, maybe

Gnarliest, no , I stopped short of using a big bumpstick & a Harley carb

Fastest, no , but she will hold her own against the best

Savagest, It may be a tracker but has the upgraded heart of a Savage and with a severe dose of class ! ;D

Title: Re: Sporty test // REX
Post by LANCER on 03/20/17 at 18:36:06

I hope to get to 300 lbs. I thought I had it before but was in the 310-320 range.
The SAVAGEST SAVAGE ?
What does that look like ? [ch129300]

Title: Re: Sporty test // REX
Post by justin_o_guy2 on 03/20/17 at 19:06:12

Depends on whether it's coming at ya or going away.
In the mirror, it's just Gotta be kinda scary.
Once it's ahead and pulling away, I'd be relieved. Hopefully I wouldn't Relieve myself sooner.

Title: Re: Sporty test // REX
Post by LANCER on 03/20/17 at 22:30:44

617E787F62655464546C7E72390B0 wrote:

Depends on whether it's coming at ya or going away.
In the mirror, it's just Gotta be kinda scary.
Once it's ahead and pulling away, I'd be relieved. Hopefully I wouldn't Relieve myself sooner.

You just ain't wrapped tight ! ;D

Title: Re: Sporty test // REX
Post by Ruttly on 03/21/17 at 07:45:37

Lancer , How you gonna get to 300 lbs ? Leave a wheel off or chuck the seat,mirrors,fenders ?
Maybe fill the tires with helium ? ;D ;D ;D
It's like a diet you lose some weight but the closer you come to the target weight the harder it gets !
I know I could have shaved at least another 10 lbs by making the RYCA battery box with aluminum and chucking that seat bracket and not filling the bars with silicone. I'm happy with it at 308-310 lbs wet , it's rock solid and should hold up for many miles ! Your rear wheel looks heavy , is it heavier than stock wheel ?

Title: Re: Sporty test // REX
Post by LANCER on 03/21/17 at 07:59:14

16313030283D440 wrote:

Ya know, I had not checked that but I will.

Title: Re: Sporty test // REX
Post by Ruttly on 03/21/17 at 08:14:16

That last 10 lbs seems impossible. Send your bike to Armen and he can give it the Swiss cheese treatment ! ;D ;D