SuzukiSavage.com - new piston performance?

Bubba Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 956 Denver, CO Gender:	new piston performance? 12/12/13 at 09:38:16 I know this has been discussed before but has anyone just replaced the stock piston with a wiseco hi compression one? What was the performance gain like? Is it really just as easy as removing the old one and dropping in the new one? what would the cost be? Any first hand experience would be welcome... Thanks!
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: new piston performance? Reply #1 - 12/12/13 at 09:55:01 Pistons dont drop into the cylinder on a bike. The cylinder gets put down on the piston. Its way different than messin with a car. Rings., cylinder worked, IDK if youve got to bore it, or if its the same diameter, but youll at least need to get a cross hatch in it for the new rings,
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axa

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Re: new piston performance?
Reply #2 - 12/12/13 at 10:19:41

Just sent mine out to bore tech for the 95mm bore.
just 65$ to bore and hone. added 100 for the carbide treatment...
Hi Comp piston w ring kit online less than 150$ delivered.

there are a few here that will 'do' this for your for 4 to 6 hundred dollars...
but dont be fooled, you will only get a 10.5 ratio if you go with the harder to find 97mm or greater piston. with a 95 i calculated 9.75 or so.

the gains seen should be more from the ratio than the displacement, so its a real good question if a stock 94mm hi comp piston is available... i had a new engine that didnt at all need a new bore

the cross hatch will help wear in a new set of rings, if your engine was new link mine, it may even still have some hatch left...

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: new piston performance? Reply #3 - 12/12/13 at 10:27:15 The smallest is 95mm so you have to at least bore the cylinder out 1mm to use it. I was already getting the max outta the stock piston/carb with upgraded exhaust/filter, so the increase didn't awe me. Not nearly as much as a performance carb will do with the stock piston. Do both at your own risk
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Dave YaBB Moderator ModSquad Offline SuzukiSavage.com Rocks! Posts: 18095 Camp Springs, Kentucky Gender:	Re: new piston performance? Reply #4 - 12/12/13 at 10:33:19 Wiseco officially makes this piston kit for the far more popular DR650, which has a stock bore of 95mm. Therefore nothing in the stock LS650 size of 94mm is available. If you wanna go Wiseco....you gotta bore it!
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axa Full Member Offline SuzukiSavage.com Rocks! Posts: 104	Re: new piston performance? Reply #5 - 12/12/13 at 13:26:59 verslagen1 wrote on 12/12/13 at 10:27:15: Do both at your own risk Whats the risk?
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: new piston performance? Reply #6 - 12/12/13 at 13:40:51 axa wrote on 12/12/13 at 13:26:59: verslagen1 wrote on 12/12/13 at 10:27:15: Do both at your own risk Whats the risk? arms tearing off.
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Bubba

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Re: new piston performance?
Reply #7 - 12/12/13 at 14:51:03

Thanks all...
I guess I was thinking the stock piston was a 95...
Probably gonna pass...

My bike is great as it is but I noticed I'll probably have to do the head plug since I seem to have some weeping around the exhaust header.

I was thinking that if there was a domed stock size piston I could just pull the jug and slap a new piston in to bump up the compression (not that it doesn't have enough torque as it is...lol) but it doesn't sound like that's the case.

Thanks for the input

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'06 lt Blue, Dyna Power pipe, air screw 2 1/4 turns, 52.5 pilot w/ bleed holes, 150 Main, 2/3 spacer, Pirelli MT66 tires, Raptor petcock, 412-4006 Progressive shocks

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: new piston performance? Reply #8 - 12/12/13 at 20:54:13 If ya wanna feel it pull better, lighten it up, get the exhaust flowing, let it breathe easy & tune it. When the day comes that its time for a cam chain, put a cam in it, Or do it when ya do the plug.
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Serowbot

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OK.... so what's the
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Re: new piston performance?
Reply #9 - 12/12/13 at 21:10:59

Good plan, JOG...
This bike ain't ever gonna' be a rocket...
If you want a rocket,.. just buy one... (they are out there, just as cheap as Savages)...
...but,... if yer' Savage needs a bit of work,.. why not make it work optimally?...

....(most rocket riders, can't really use the HP their bikes make)... if you can really use all of the Savage power,.. you're a pretty good rider...
... and you'll keep up... anywhere but flat, straight highway)...
... likely,.. more than keep up... Grin

...

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Ludicrous Speed !... ... Huh

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S-P Serious Thumper Offline Back in the saddle again Posts: 816 Phoenix, AZ Gender:	Re: new piston performance? Reply #10 - 12/12/13 at 21:25:07 Serowbot, Yep, I just changed the air filter, jetted the carb, put on a Raptor petcock and it made a difference, but it's not a Ninja. I agree, if you want a crotch rocket, go buy one. Thumpers thump. Grow where you're planted.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28637 Tucson Az Gender:	Re: new piston performance? Reply #11 - 12/12/13 at 21:31:49 S-P wrote on 12/12/13 at 21:25:07: Grow where you're planted. I like that... .. in fact,... I'm gonna' steal it... ...
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Tempted

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Re: new piston performance?
Reply #12 - 12/12/13 at 22:04:03

I gave some thought to an SV650 V-Twin or EX500 parallel twin swap into the Savage I'm currently restoring for my brother in-law. I still haven't taken the idea off the table but the initial build will be using the stock single. If I were building it for me and me alone I'd go with the V-Twin but for a new rider(he has never owned a bike) I think the big single is enough power and will be more forgiving to small mistakes than a higher output mill. A Sportster 1200 motor would probably work well. Lots of torque, low revs, belt drive and rock reliable.

I know that the Savage isn't built for power and if I wanted it then I'd be better off buying one of the previously mentioned bikes. The reason behind me buying the Savage is because I only gave 240 bucks for it. I can do a motor swap and still come out way cheaper than buying something else.

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justin_o_guy2

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Re: new piston performance?
Reply #13 - 12/12/13 at 23:31:10

The Savage is fast enough to get a guy in over his head. It has less than ideal handling, which, for me, is a safety feature. I can Test myself thru a sweeper on it & the handling will tell me when Im going as fast as I can go w/o crashing. If I had a crotch rocket that handled like a scalpel, Id get into corners going way too fast. I MIGHT not crash due to losing control, but Im not smart enough to have fun at lower, survivable speeds IF the equipment will operate at higher speeds. One of these, well tuned & on good rubber will put pegs down in corners I can make w/o screeching tires in the car at a bit over 30 MPH. Theres a nice one not far from home, I guess its not exactly a corner, but its a bit tight to call it a sweeper. Its a fine challenge. POwer & near racetrack handling/geometry covers up the sins of picking bad lines. The Savage exposes them, & I like that.,

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Bubba

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Re: new piston performance?
Reply #14 - 12/13/13 at 08:03:30

thanks...
I think I've gotten about as far as I can with the stock setup...

If ya read my sig line it's got all the normal mod stuff done and I just recently added taller Progressives to rear (that helped the handling more than I had expected).

About the only thing left is to go beyond stock stuff or go the bobber route to lighten it up (but my wife still occassionally likes to go on a ride)
...really I'm very happy with what I have...just like to tinker...

I've been spending a lot of time on a couple old mopeds and they are so easy to tear down and modify and there are so many after market performance parts available for them...lots of fun!

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'06 lt Blue, Dyna Power pipe, air screw 2 1/4 turns, 52.5 pilot w/ bleed holes, 150 Main, 2/3 spacer, Pirelli MT66 tires, Raptor petcock, 412-4006 Progressive shocks

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