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General Category >> Rubber Side Down! >> What a Difference it Made
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Message started by Ed L. on 11/27/04 at 17:08:19

Title: What a Difference it Made
Post by Ed L. on 11/27/04 at 17:08:19

Well I finally got out on my '02 after changing over to a Sportster muffler and rejetting from a 145 to a 152.5 main. Oh my what a difference it has made, instead of feeling topped out at 4800 rpm the motor runs up to 5400rpm with ease, came close to entering a corner a bit too hot :-[. Instead of going for third at 35 mph I was able to run second out to 45 mph. Big difference in performance and sound and was well worth the time. As a bonus the exhaust pipe is turning back to yellow from the blue color caused by running too lean. ;D. The beastie does 60mph in third gear, wonder what the top end is now?? A handle bar change is next on the list,then waiting for a weekend when the weather is a bit warmer. Ride Safe, Ed L.

Title: Re: What a Difference it Made
Post by PRH111 on 11/27/04 at 18:27:01

On a 5spd you should be able to hit 55mph in 2nd and 75mph in 3rd.

Title: Re: What a Difference it Made
Post by klx650sm2002 on 11/28/04 at 05:59:02

Max speed in gears, five speed.

1st=36.9
2nd=54.5
3rd=75.3
4th=89.8
5th=97.2

All at 6500rpm

Clive W :D

Title: Re: What a Difference it Made
Post by Ed L. on 11/28/04 at 07:15:05

When I'm out riding I try not to max out the rpm's (6500) for each gear, in fact I don't think maxing out the rpms on any engine on a regular basis is good for it. Instead I try to keep the motor's rpms where the performance feels optimized. My last post was just a comment on how the power range of the bike has changed with the simple modifications which I have made. Even if your riding style is different I am sure that you would be happy with the improvement brought on by the mods. We all know that the Savage is a bit underpowered and any way to squeeze more horsepower out of it is appreciated. What performance improvements have you done to your ride and how do you like them????

Title: Re: What a Difference it Made
Post by klx650sm2002 on 11/28/04 at 08:03:10

Speeds in gears,KLX650.

1st=35.7
2nd=52.9
3rd=68.5
4th=84.9
5th=102.3

at 7500rpm.

1st to 4th a little lower with a big step to 5th.

Clive W :D

Title: Re: What a Difference it Made
Post by Ed L. on 11/28/04 at 12:36:16

Thanks for the info, ;D
Ride Safe

Title: Re: What a Difference it Made
Post by klx650sm2002 on 11/29/04 at 05:38:48

Hey Ed L.

Performance mods I have made to my ride:-

3.5/17 rim laced onto std front hub,EBC disc + pads, GPR70SP tire.

4.25/17 out back,EBC disc + pads,GPR70SP tire.

Trimed front and rear mudgaurds and side panels.

Renthal sprockets and bars.

One off pipe and silencer.

Keihin FCR41 carb.

Thats about it.

Clive W :D

Title: Re: What a Difference it Made
Post by klx650sm2002 on 11/29/04 at 05:43:15

Max speed in gears, four speed

1st=37.3
2nd=55
3rd=75.3
4th=94.2

all @ 6500rpm

Clive W :D

Title: Re: What a Difference it Made
Post by sunny on 11/29/04 at 09:08:52

and at the toyrun i went to this weekend i discovered that you can do 20mph turning a corner while still in fifth gear...
::)
and i kept trying to shift up after the turn...

with all those huge bikes around i couldn't hear my savage at all.

Title: Re: What a Difference it Made
Post by Ed L. on 11/29/04 at 15:23:15

Hey Clive, I'm impressed, let me know how the new carb works out. Seems that there is only so much that can be done with the BS40. Stock my '02 wouldn't haul my butt over 83 mph, there was no way the bike would reach 95mph unless I did a Evel Kenevel over a cliff. ;D Maybe with the mods I'll be able to get close to it which is good enough for now. Ride Safe

Title: Re: What a Difference it Made
Post by Greg_650 on 11/30/04 at 04:02:57

sunny wrote:

;D 20 in 5th? Are you kidding? What happened to "slow, look, lean, roll"? You certainly can't roll on the throttle at that speed in 5th.

If it hadn't been for all the huge bikes around you, you'd have heard your motor chugging and clunking and crying out :'(

Some of the information about the speed in each gear to shift up also applies to the speed to shift down

Title: Re: What a Difference it Made
Post by klx650sm2002 on 11/30/04 at 08:17:04

As I've said to Greg the FCR41 is awesome, way better than a dynojeted standard carb (keihin cvk40) but as Greg and I have discused the most important mod to a Savage is to sort out the horrible exhaust port, then go for a bigger diameter exhaust and then the carb.

Clive W :D

Title: Re: What a Difference it Made
Post by sunny on 11/30/04 at 09:33:50

i was so frazzled by the time we got to that particular turn i had no freaking clue what gear i was in. did slow with the clutch in and went to roll the throttle on after the turn and it seemed to do fine. but surrounded by a million harleys i couldn't hear a thing. so then at 35 i went to shift, but the shift wouldn't go up. and my first thought was "WTF? no not now!" i thought maybe i was stuck in second but that had never happened before.
and i kept on throttling and was able to keep up and tried to shift up again, but it was a no go. that is when it hit me, that i had been too distracted by the riders around me before the turn to shift down at all.
it didn't seem to harm my poor bike.
i have NEVER been so glad when a ride was over as i was then.
even the supercold nightride home from work sans windshield paled in comparison.

Greg_650 wrote:

Title: Re: What a Difference it Made
Post by Greg_650 on 12/01/04 at 03:03:41

Too bad. Sounds like a really disorganized group of riders to me. Riding too close. You should have dropped to the back, maybe. If you'll notice the riders in Perry's toy run, they appear more spread out

....and slowing with the clutch in is never a good idea unless you plan to stop. What if you had stalled going around the turn? You'd have gone down.

Your next toy run (if you do) will probably be much better.

Title: Re: What a Difference it Made
Post by rkutzner on 12/02/04 at 14:42:41

What's involved with changing over to a Sportster muffler? My brother has one in his garage he can't get rid of! Is it louder? Does it flow more?

Title: Re: What a Difference it Made
Post by Ed L. on 12/03/04 at 17:22:05

Hey rkutzner, the conversion is pretty easy, I pulled the exhaust off of the bike, took off the stock muffler and took the stock setup and sportster muffler into a Midas muffler shop. Had them make a adapter about 10 inches long that slipped over the outside of the stock pipe and slipped into the end of Sportster muffler. The adapter needs to be bent at about 10 degrees to match the angle of the stock muffler which is why you should take everything in to the shop, it gives the guys an idea of what they are replacing. Besides the adapter you need a piece of flat stock and some bolts to mount to the stock mounting points and a couple of muffler clamps to hold it all together. I was able to reuse the orignial heat shield but a replacement would look better. The sound is a lot better than the stock unit but isn't deafening.

Title: Re: What a Difference it Made
Post by gitarzan on 12/03/04 at 20:44:22

Quote:

The sound is a lot better than the stock unit but isn't deafening.

Try knocking a 1/2" hole in the baffle. It'll be heard.

Title: Re: What a Difference it Made
Post by klx650sm2002 on 12/04/04 at 01:21:05

Keeping the header length close to stock is important.
The standard header continues a way into the silencer hence the need for the adaptor with the harley silencer.

Clive W :D