Topic: 550 Cam Options

[bambuhiphop]

Anyone have any thoughts and/or expierences with the 126-00 and 126-20 profiles from Megacycle?

I am trying to gather all my potential options. I am aware of the 358a and b from Dynoman but hadn't come across these guys yet...

[bwaller]

What do you have in mind for the bike, street, race?

I have the 126-20 in my race engine. It's not radical but is a nice cam for the track. I can't say how it would behave on the street, but expect the power development is biased toward higher revs.

[bambuhiphop]

It will be a street bike. I have the gp moto 4 into 1, the base 61mm Dynoman pistons, lightened and balanced crank, and will be going with a stage 2/3 with mrieck. Also going to put 26mm smooth bore carbs on it. So it will hopped up but hopped up street. I was originally looking at the 358a.

[Tintop]

I have the 126-00 in my basically stock 550.  Still working out some carb issues, but seems to have stronger mid range (good for street), and a touch more top end.

[bambuhiphop]

Thanks for the info guys. I think I may go the 126-00 route. Can always track down another core and go more aggressive later.

[mazen0822]

I am in the process of installing my 126-20 cam in my bike as I finish my motor rebuild. I'm also doing the dynoman 592/61s kit. I'll let you know in a week or so how streetable it is.

[bambuhiphop]

That would be great CB592F, Thanks!

I have been doing further research and wanted to post this info for others consumption if needed. Could already be elsewhere but can't hurt.

Web Cam 358a (Intake/Exhaust)
Valve Lash:                .004"/.004"
Valve Lift (in):             0.330/0.330
Valve Lift (mm):          8.38/8.38
Advertised Duration:  280°/280°
Duration @ 0.050":    228°/228°
Lobe Center:             107°/107°

Intake Opens 7° Before TDC
Intake Closes 41° After BDC
Exhaust Opens 41° Before BDC
Exhaust Closes 7° After TDC

Web Cam 358b (Intake/Exhaust)
Valve Lash:                .004"/.004"
Valve Lift (in):             0.330/0.330
Valve Lift (mm):          8.38/8.38
Advertised Duration:  288°/288°
Duration @ 0.050":    234°/234°
Lobe Center:             107°/107°

Intake Opens 10° Before TDC
Intake Closes 44° After BDC
Exhaust Opens 44° Before BDC
Exhaust Closes 10° After TDC

Megacycle 126-00 (Intake/Exhaust)
Valve Lash:                .004"/.005"
Valve Lift (in):             0.296"/0.280"
Duration @ 0.040":    240°/240°
Lobe Center:             105°/105°

Intake Opens 15° Before TDC
Intake Closes 45° After BDC
Exhaust Opens 45° Before BDC
Exhaust Closes 15° After TDC

Megacycle 126-20 (Intake/Exhaust)
Valve Lash:                .004"/.005"
Valve Lift (in):             0.363"/0.333"
Duration @ 0.040":    259°/259°
Lobe Center:             104.5°/104.5°

Intake Opens 25° Before TDC
Intake Closes 54° After BDC
Exhaust Opens 54° Before BDC
Exhaust Closes 25° After TDC