[Guest]

Looking to see what kind of hp #s people are getting w/ increase in compression, cams, valve job, port and polish work.

Who makes cams and gears besides HRC?
I know APE is finishing up on adj. cam gears but who has them out now?

Alan

 

[Marshall]

I beleave when we had Dan Kyle on the board he said taht it wasn't worth.

 

[Guest]

I know Dan Kyle knows his stuff but how can it not be worth it? I know it is not cheap to build a motor though.

I remember seeing that Ten Kate was getting almost 150rwhp. Now I'm not looking for that kind of power but it seems that the power can be made. I'm just looking for the most effective way to make power on top of Pipe and PC.

Alan

 

[Guest]

I remember someone degreed their cams and bumped up the compression and got a few more hp but I can't remember who it was.

Alan

 

[Guest]

reliability and the warranty will both go out the window.

 

[Guest]

I'm not concerned about the warranty.
Reliability is whole other topic I'm not concerned with and don't really feel like discussing in this thread :wink: .
With the things that I'm considering it won't make that big of difference. I'm not worried about the motor lasting for 50,000 miles. This is my race bike so I am looking for more power. :twisted:

Alan

 

[nj600rr]

Some dude her found a turbo on ebay for a few bucks :bounce:

 

[600rrpilot]

im thinking about just throwing on the hrc head gasket to get a minute compression increase. is it honestly worth the work to remove the head, no, but im bored :wink: im not exactly sure what i can expect from it, maybe 1 hp, if that. or maybe im wrong and i'll gain a couple. we'll see, but for 40 bucks why not. you know?

 

[DaMartian]

if ur looking for a 150hp bike... why dont u just buy a liter bike?

 

[cannabis600rr]

because then he couldn't race/win the 600 classes. suspension my big thing this year. no need in getting motor work done til you have your suspension right.

 

[Da600RRStuna]

Pilot dont you have a slipon? before doin a head gasket why not try a full exhaust first..doesnt make sense doin a gasket with a slipon if your lookin to get hp..
just a thouhgt :wink:

 

[600rrpilot]

Pilot dont you have a slipon? before doin a head gasket why not try a full exhaust first..doesnt make sense doin a gasket with a slipon if your lookin to get hp..
just a thouhgt :wink:

its just my personal thought that there is no big advantage of aftermarket headers. honda did a very nice job on these, no need for improvement. like i said this is my opinion, unless your going for something different like the serpent headers.

heres an example. my friend had a akra slipon on his r6 stock which he dyno'd against a r6 with a full evolution akra system. well lets just say the results justify my thinking. :wink:

 

[Rlbol]

well pilot are you some what correct in your thinking.
you will only gain a few horses by going to the full exhaust. but when you then go and do a valve job, degree the cams, mill the head etc... you will see the gains from the full system.

 

[Guest]

if ur looking for a 150hp bike... why dont u just buy a liter bike?

I said that I wasn't looking for 150hp :roll:

I already have full exhaust, powercomander, penske, and forks are worked.
I'm looking for motor upgrades now thanks.
Alan

 

[Marshall]

Talk with Dan Kyle, He's the one who's going to give you alot of info on that kind of stuff. Either call up the store or write him an e-mail.

 

[600rrpilot]

well pilot are you some what correct in your thinking.
you will only gain a few horses by going to the full exhaust. but when you then go and do a valve job, degree the cams, mill the head etc... you will see the gains from the full system.

thank you. but power from valves, cams, and milling are not a direct result from different headers though. those power increases would be seen without changing headers. also, if anyone can come up with some hard evidence of the difference of stock and aftermarket header (other than serpent type) then let me know, cause im curious. i for one have not seen anything in writing that explained the difference of aftermarket vs stock headers. im sure that some are different, maybe .005"wider ID, or different designs like serpent. but honestly, for another 400 bucks, spend it on suspension :wink:

 

[Rlbol]

I dont disagree with you on suspension. That is where most of your budget should be. providing the bike is being used on the track! If it is solely a street bike that is different. Also why you would buy an RR for a street bike is beyond me anyways.
So back to the motor work. The factory exhaust is designed for the stock engine. The diameter as well as routing comes from an equasion so that the engine has the correct back pressure, emissions,etc... but when you start changing the engine you have to be able to flow more exhuast other wise why would you want to increase the intake if it couldn't exit at the same rate? So if are going to go ahead and spend all this money on doing engine mods to increase the power of the engine why would you want to limit yourself by haveing a slower flowing or decreased flow header?

 

[exhausted mule]

also aftermarket headers are way lighter than stock...

weight is you biggest enemy, think about shedding a bit before trying to add power.

you'll get much bigger gains on the track with a lighter bike than a slightly more powerfull one.

 

[Guest]

reliability and the warranty will both go out the window.

Unless you're talking about fully building the motor, degreeing the cams is not going to affect reliability, as well as a headgasket which barely raises the compression.

When I have A LOT of time on my hands, I will be degreeing the cams and installing the HRC headgasket.

 

[kef27]

What about Big Valley Honda? The know their stuff - just send Bob and email. He told me (today) that they degrees the cams on all bikes, and that HRC cams and gasket are a good mod to do, without sacrificing reliability. HRC kit costs $1100+ (cams, springs, gasket).

The other thing to consider - is it legal where you race? AFM production class allows engine mods, but NOT pipes... That's why I'm looking at it.

There was a post (on the old website) that showed some good power gains from degreeing the cams and using the HRC head gasket - up to 15 HP I believe.