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Message started by Armen on 09/25/16 at 08:26:13

Title: Cam swap?
Post by Armen on 09/25/16 at 08:26:13

Wondering if anyone has done just a cam swap (with a different carb and muffler)? Not the higher compression or big bore.
How'd it work out? Which cam did you use?
Have the valve cover off, lots of stuff apart. Don't want to be breaking in a new piston with all the other changes I'm doing. And I'd like to see the beast run this year :-?
Thought maybe just a different bumpstick might make a slight improvement.
thanks,
-Armen

Title: Re: Cam swap?
Post by justin_o_guy2 on 09/25/16 at 08:48:36

Yeah, cams are available, I wanna say three levels of differences, not necessary to change carb, but I think that's been done with good effect. Is it cost effective? Ohh, who cares?

If you're going with a cam, exhaust makes sense, but don't forget about the intake, and the head, especially the exhaust side, is just a mess design wise..

Title: Re: Cam swap?
Post by Armen on 09/25/16 at 09:34:49

Justin,
I put on a 40mm Mikuni flat slide pumper that I had laying around for 20 years from a project that never happened. Mated it with the biggest K+N pod filter that would fit. The muff is the long RYCA unit, which is supposed ly their quietest. Hate loud bikes.
Just emptied my change bucket and have a few bucks to burn ;D

Title: Re: Cam swap?
Post by smokin_blue on 09/25/16 at 09:55:07

Armen,
I think I did what you are asking....

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1378864265/30

It has a TM36 flat slide, Mid range cam (see Lancer), ported exhaust, bigger header and a nice flowing muffler.

Once I dialed in the jetting I love it!

Title: Re: Cam swap?
Post by justin_o_guy2 on 09/25/16 at 10:17:07

I wish I had timed the zero to sixty run before and after.

Title: Re: Cam swap?
Post by Armen on 09/25/16 at 11:25:27

Hey Blue,
Beautiful work!

Title: Re: Cam swap?
Post by Ruttly on 09/25/16 at 14:00:37

Why no big bore h/c ? Get the cylinder coated too. That what wakes it up !

Title: Re: Cam swap?
Post by Armen on 09/25/16 at 14:02:25

I have a 97mm top end all fondled and lovely. Would actually like to get the bike running before I die. Cam cover is off, so no additional time needed for the bump stick. Don't want to dismember any more.

Title: Re: Cam swap?
Post by Ruttly on 09/25/16 at 15:48:19

I went with 97mm & Boretech coating, ported head myself.
I used Webcam standard grind has a little more lift & duration than stock, I didn't want a camy feeling engine just wanted it to breath and be dependable. Also had rockers hard welded.
But for the same money they have 3 other cams.
Cruises at 70 fine,whack the throttle and it pulls hard right past 100 mph that's all I need,very quick as well 0-60/70
Really fun to ride has good power across the board !

Title: Re: Cam swap?
Post by Armen on 09/25/16 at 15:58:44

Thanks Ruttly,
Sounds great. Trying for the widest possible power band.
;)

Title: Re: Cam swap?
Post by justin_o_guy2 on 09/25/16 at 16:12:09

Ohhh how I WISH,,,,
The scientific approach, a good, stock engine
Dynoed
Cam swaps, carb, intake, exhaust tunings and dyno between,
Punched out,
Rerun tests,
Carb swap, tests,
Gee, couldn't take more than a few hundred hours and a few thousand dollars.
Dave?

Title: Re: Cam swap?
Post by Ruttly on 09/25/16 at 16:40:19

Wish I had time to dyno my bike , if I had to guess its up around 45 hp after the couple grand I spent that's total clutch,carb,pipe,gaskets, seals etc. It was worth every penny ! She's Fast !

Title: Re: Cam swap?
Post by Ruttly on 09/25/16 at 17:30:58

Ok might have spent more than that,maybe as much as,whatever it takes to achieve the goal of a speed & power & dependability!
Very difficult to balance those 3 !!

Title: Re: Cam swap?
Post by smokin_blue on 09/25/16 at 18:33:26

Here is my version of speed, power, and dependability. ;D

She's named Bad Attitude for a reason. (With an almost 1200cc air oil cooled GSX-R engine she is bullet proof)

http://www.street-unique.com/BadAttitude/photos/july2006-27Medium.jpg

Title: Re: Cam swap?
Post by smokin_blue on 09/25/16 at 18:38:08

Armen,
I would suggest you strike up a PM conversation with Lancer. He worked to develop two of the cam profiles that are out there. If you want a wide power band I would suggest you confirm with him but I would recommend his mid range cam. That is what I went with. It is not extreme but adds some meat to the power. Then if you have the head off (or if you want to work carefully with rag plugs) you can do some careful simple die grinding with a dremel grinder and take out the restricter that is in the exhaust port outlet.

Lastly if you have extra money after all that then I would recommend considering a carb upgrade if you want to improve throttle response. Obviously not absolutely needed but one of those nice to have things. Again Lancer is a key resource there for input and buying assistance.

Title: Re: Cam swap?
Post by Ruttly on 09/25/16 at 18:57:59

Blue, That GSXR looks like it belongs in futuristic syfy movie, looks scary fast,I know it's scary fast. I like life & freedom, if I had that I would be in jail or dead. Thats why I build singles ! But it sure is badass !

Title: Re: Cam swap?
Post by Dave on 09/26/16 at 04:10:18

4A6D6C6C7461180 wrote:

I used Webcam standard grind has a little more lift & duration than stock, I didn't want a camy feeling engine just wanted it to breath and be dependable. Also had rockers hard welded.!

All of the cams that Lancer sells are very reasonable.....and make a good running engine. They are not wild grinds, and they don't make the engine run poorly at low revs. Originally there was a Stage 1 and Stage 2 grinds. I have the Stage 1 in my engine as I wanted a smooth running engine - but not that I have been around them for a while, I believe all the grinds are reasonable......Oldfeller has a Stage 2 in his bike, and it runs smooth as well (but it makes the best power at a bit higher rpm). (An early DR650 cams can be used in the Savage engine - but even the stock DR cams are far wilder than anything that is made for the Savage).

Lancer later made a Stage 3 cam that has the duration of the Stage 1 with the higher lift of the Stage 2 - and currently it is the only grind he is selling. I will be putting one of those cams and a Nitrided cam chain in my engine this winter.

I had my rockers welded also - but the current price is $ 130 each! The rockers used after 2005 have hardened inserts and are half the price of the welding (about $50 each), and they work just fine with the Webcam grinds.

Title: Re: Cam swap?
Post by Ruttly on 09/29/16 at 18:49:29

Armen , Was curious what cam you decided on ?

Title: Re: Cam swap?
Post by Armen on 09/29/16 at 18:55:32

Sounds like only one is available.