Okay, here's the deal with hopping up a Savage. You can add a freeflowing exhaust like you already have. You can add a free or freer flowing airfliter, such as a K&N pod filter. Remove the emissions control (white) spacer and thin it down to half of stock thickness, and add a 152.5 or 155 main jet. Remove the idle mixture cover from the upper right side of the carb. Turn the air screw out 2 turns from stock, and reset the idle speed.

You can get different carbs for the bike. Is it worth it? If you want to go faster than say 80 on the freeway, you bought the wrong bike. The bike is capable of higher speeds, but, the brakes, tires, and frame aren't designed for it. If you just want to dial out the "pop" on shutdown, just drill out the mixture screw cover and adjust the mixture.

My bike has an open(ish) exhaust, the airscrew out two turns past stock, a dirty stock (original) airfilter, stock jets, and stock spacer. I pull down 70+mpg, and have run the bike up to 115 mph. Both are flukes, although one other bike has done 112 mph. Both speed and mpg are fine as is as far as I'm concerned.

Go through the technical and general boards with a fine tooth comb. All the mods you could ever hope to do to a Savage are pretty well documented. Also check out the Heise forum if you haven't already, it has been online since 1998, many gurus there who have yet to migrate here.

Happy tinkering.
-WD

FYI, you'll make more power if your bike has some backpressure, add a slip in baffle to your pipe, you can get them at any Harley shop, maybe even the authorized dealerships.

WD-

I GOTS TO KNOW...  How did you make 115?  What were the flukey conditions?  As a human being, you MUST let us know the story on that.

You're still around to write about it so you must not have dropped it off a cliff to make 115...

Almost thou persuadest me to try an Edelbrock.  Already have an Eddie 4bbl on my Buick, and I love it as much as a Holley.  Got an extra Eddie for the Sav?

Bobo, it's a closely guarded trade secret... actually I stripped it of everything it didn't need to run. Alcohol based racing fuel, 1.5 miles of speed build up. The speed wasn't a guess. Track end trap and police radars were within 1/2 mph of each other. I can still bury the needle without trying very hard.
-WD

WD wrote on 12/31/69 at 16:00:04:


Does that mean ya'll make your own?  

"Alcohol based" ...what else is in there?
Nitro? PO? Vermouth?

Vermouth is just a mixer,
tequila is the debil.

mr650, I've got the recipe for do it yourself nitro blended fuel...I'll see if I can find it. 5% nitro ia about all the stock engine can take though. The alcohol based fuel was from a Shell racing pump. I could make my own, I've set up stills before...
-WD