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Message started by henroc on 08/11/18 at 19:40:35

Title: looking for input
Post by henroc on 08/11/18 at 19:40:35

I ordered a .5 oversize piston for my 2000 Suzuki savage 650ls. Guessing when I ordered it from partszilla my reading wasn't so great. Simply thought saving $$ ordering a piston rings set would be better than seperatly but in turn I would have got the right one.

What I'm asking is can the stock cylinder handle the bore to .5 more than stock. Gonna find out Monday when I take it into a machine shop for a price.just figured I would seek from those who have done mods to motor.

Title: Re: looking for input
Post by justin_o_guy2 on 08/11/18 at 23:55:41

A few guys know what sizes and whose piston is right.
It's out there in the forum, I can't find it, maybe you can, or someone will point the way.
Wiseco , IIRC, is the manufacturer these guys have been using..

Title: Re: looking for input
Post by Dave on 08/12/18 at 03:39:47

The stock piston is 94mm.......it sounds like you are going to a 94.5mm.

The Wiseco pistons we install come in the stock 94mm.....or oversize in 95, 96 and 97mm. Going bigger than 97mm results in the cylinder sleeve being too thin.

Your 94.5mm will work just fine - as long as the machine shop does a good job making the hole the right size.

Title: Re: looking for input
Post by LANCER on 08/12/18 at 04:55:46

The stock size Wiseco pistons (94mm) are available now and don’t cost any more than a Suzuki piston with stock Compression. Why go with stock Compression (8.5:1)when you can get with a Wiseco with 10.5:1 Compression ? No boring required, just a hone. The 94.5mm piston will require boring the cylinder.

Title: Re: looking for input
Post by henroc on 08/12/18 at 16:01:33

Thanks guys. When you raise compression you need to add more upgrades and I'm working with cognac taste but beer wallet. Just want it to run not looking to race it. I made the mistake so looking to correct it and move along. I'll end up having it bored and go from there. Just curious of how much you can bore safely.

Title: Re: looking for input
Post by justin_o_guy2 on 08/12/18 at 17:13:57

When you raise compression you need to add more upgrades and I'm wor

What needs done along with compression ratio?

Title: Re: looking for input
Post by henroc on 08/12/18 at 19:47:12

Air fuel mix and exhaust. Not looking to achieve horsepower just make it run.

Title: Re: looking for input
Post by justin_o_guy2 on 08/12/18 at 23:46:03

Seems like the savings on Not having to bore it out would be a good thing.

Title: Re: looking for input
Post by jcstokes on 08/13/18 at 01:11:08

What grade of petrol would you need to run the 10.5.1 Wiseco?

Title: Re: looking for input
Post by LANCER on 08/13/18 at 04:07:55

6B6272756E6A6472010 wrote:

What grade of petrol would you need to run the 10.5.1 Wiseco?

You should run Premium fuel with the higher compression.
That adds about $0.50 to the cost of a tank fill up.
And no, you do not need to do any other engine mods unless you just want to.

Title: Re: looking for input
Post by henroc on 08/13/18 at 16:20:56

Had a guy tell me at machine shop that without compensation for the larger compression you can get a pre detonation which makes it knock and does damage doing so? Does this apply or true To these savages.

I am no expert! I'm here seeking knowledge about everything I don't know.

Title: Re: looking for input
Post by Dave on 08/13/18 at 18:27:58

727F74687579292B2B221A0 wrote:

Yes - That is why everyone is telling you to run premium fuel if you install the Wiseco piston. The extra compression bumps up the horsepower a bit - but also requires a higher octane fuel.

The Wiseco piston makes a noticeable performance improvement....I would never bother with the stock piston if I had to replace a damaged one.