Lets Talk Cams

[IMFASTTOO]

@Scorp
Thanks for posting this, Mate!
Makes sense and clears up a lot for me.
Your post actually reads like an answer to Mr. Lush's question about 200 HP with only cams, air and headers.

SO THATS taking the engine apart installing pistons cam kit any porting ?

 

[IMFASTTOO]

@Scorp
Thanks for posting this, Mate!
Makes sense and clears up a lot for me.
Your post actually reads like an answer to Mr. Lush's question about 200 HP with only cams, air and headers.

We get over 200 hp with just our cam kit no pistons or porting BUT we can give you 255HP with pistons and porting and 270 + IF YOU WANT BIGGER VALVES

 

[IMFASTTOO]

Personally I find the big deal to be the mean piston speed at 9000 RPM. It comes in around 28 meters a second. Not saying there is or isn't a reliability issue with that, but it's a very high piston speed for a bike many want/expect to last for years to come. At 7500 it's right around 25 m/s, still higher than any production bike, including the S1000RR.

Personally, I am not comfortable taking a daily driven bike and raising redline to a point where piston speeds exceed that of many drag cars. Especially when there is so much torque that can be had lower down.

Thing to remember is that drag racing is not the ultimate measure for many people, for myself and many it is only another data point, like a dyno.

Anyways, that is why I was asking about 200hp no later than 7000 rpm, for streetability and accessibility of torque at sane speeds.[/QUOTE NO problem reving to 9k rev limit weve reved some to 10k in the streamliner we have a 270HP street bike thats run 40 ,000 miles and no issues The Rocket engine design allows it rev safely with our camshaft packages and we havnt had a single problem FIRST of all you dont ride at constant top rpm do you? your not running a race track are you ? so like all road riders you cruise mostly and turn it up when you want to have some fun AND you say you dont drag race any other bikes you just put around the Island at low rpm SO then your not interested in max performance for your style of riding So keep on puttin and have fun

 

[Claviger]

• From my experience, you would need to squeeze out about 30hp with cams. Maybe the Brute exhaust which flows more free, no filter for maximum flow you would reduce that but I honestly don't know what a cam is capable of, maybe a full race cam would achieve this? Only the guys who deal with them would know to what extreme you can achieve.

This is pretty much what I was wondering from the start, can it be done without breaking open the engine, just swapping out the cams without changing valve train etc. A dyno showing what a bike with ONLY intake, exhaust, cams and tune, no valvetrain, no porting, no bucket or spring changes etc would go a long way towards selling a set of cams...

It would be around a 15% increase in power over the 16x hp setups.

Still also wondering if you get a Cam spec sheet that shows all the cam details or just a mystery cam with timing instructions and a recommended setting for installation.

 

[Trirocket3]

We get over 200 hp with just our cam kit no pistons or porting BUT we can give you 255HP with pistons and porting and 270 + IF YOU WANT BIGGER VALVES

So it's a cam KIT now, open inlet & Brute exhaust, so the answer to my previously ignored post is ?

"does that mean the over 200hp cam also requires shim under buckets, & cylinder head removal for stronger valve springs due to high rpms ?"

Bottom line, 200+ cam kit, what is everything that is actually needed, what work has to be done, & what does it cost ?

 

[IMFASTTOO]

This is pretty much what I was wondering from the start, can it be done without breaking open the engine, just swapping out the cams without changing valve train etc. A dyno showing what a bike with ONLY intake, exhaust, cams and tune, no valvetrain, no porting, no bucket or spring changes etc would go a long way towards selling a set of cams...

It would be around a 15% increase in power over the 16x hp setups.

Still also wondering if you get a Cam spec sheet that shows all the cam details or just a mystery cam with timing instructions and a recommended setting for installation.

WE will be offering several new assembled in the bike engine packages

 

[pete.triumph]

If you want to rev over 5000 for good torque

 

[TriumPhil]

See what you guys have gone and done? Now, BC's gonna' come out with more goodie packages for the power-hungry Rocketeer!

 

[warp9.9]

Do the TTS Blower kit and have some fun

 

[Neville Lush]

Scorp has all bolt in's. Pistons/cams only. No headwork ,stock valves/springs etc etc. To get 200 with any exhaust/air filter you will need compression as well as camshaft, unless you rev the snot off it and have no low end power. High 160's is common with exh/air/ good tune. I do not believe it is possible to get 200hp and 180 tq under 6800rpm without taking off the head.JUST CAMS. Art cannot show me that in a graph as it has not been done, as described. We all know ad nauseum, it is possible to get over 200hp with all manner of things. Maybe you yanks will get a new secret package from Bob out of this discussion. Hope you do. Have a nice day folks.