Performance Gain/ Reliability of kit gasket on bone-stock motor

[Daytona.Scott]

Just a quick video... Jason DiSalvo on stock 675r

http://www.youtube.com/watch?v=Z5Fki...3&feature=plcp

[wavrdr]

CCS for me.....Wera is nowhere near close enough...

Fwiw, I run GTU, mwss, mwsb, Hwss, hwsb, and mwgp. It's usually all the same bikes but there is no tech if you podium in the non-SS classes...

[Daytona.Scott]

Originally Posted by wavrdr

CCS for me.....Wera is nowhere near close enough...

Fwiw, I run GTU, mwss, mwsb, Hwss, hwsb, and mwgp. It's usually all the same bikes but there is no tech if you podium in the non-SS classes...

Yeah... hmm I don't think I will go engine work. I am very confident that I can hit 120rwhp with kit alternator, intake filter and u4.4

Sent from my Galaxy Nexus using Motorcycle.com Free App

[wavrdr]

Remember, dynos are just a tuning tool....there has only been one other 600 to dyno 120 whp on the dyno where mine made 119.85....

The dyno is very pessimistic and sees its fair share of AMA bikes....Mesa, Villa etc....

[Dave73]

Originally Posted by wavrdr

.

I am running kit springs also...the builder notched my stock sprockets and advanced the cams 6*.....similar to what he does on gsxr's as the cams spec'ed out similarly....

The bike is an animal. I could easily yank worked 600's at Daytona....

Both cams advanced 6 degrees? That seems like a lot!

Where do yall get your small parts from? I was wanting to do the springs in the off season to be on the safe side, and it seems the price of the springs, gaskets, bolts, etc starts to add up pretty quick.

[wavrdr]

I have a local Triumph dealer as a partial sponsor, so he usually helps me out with pricing...

Iirc my builder said he went 6*....he also said the stock springs aren't strong enough for stock cams at max lift! The kit springs spec'ed out just right for the stock cams...in his opinion...

He usually builds some badass suzukis...he was impressed with the 675!

[antirich]

I'm looking to have APE develop some aftermarket race springs. Just need to get a head to send out to them as a guide.

Hopefully, they'll be 1/2 the price as the kit springs.

[sirhosis of deliver]

Pardon my ignorance guys but what exactly is involved in a ' valve job"? Is this the same as valve lapping or is there something else involved.

I am thinking about getting a custom tune but want to make the most of it and though that bumping up the compression with a thinner gasket and perhaps even shaving the head or decking the block to make the most of it all might be a good thing in terms of making a little more power. Are these the types of mods that a 675 responds well to or am I better off doing something else?

[Dave73]

"valve job" can mean different things to different people. It could be as simple as lapping the valves, machining the face and valve seat, or a "multi angle" regrind which improves flow at low lift. You really need to talk with the guy doing the work to find out exactly what you are getting.

[sirhosis of deliver]

Originally Posted by Dave73

"valve job" can mean different things to different people.

Yes I know. That's why I asked. A few people have posted in this thread about doing a valve job. I just wanted them to be a little more specific before I make a Dick of myself while talking to an engine builder.