Mercruiser Scorpion Cam Specs

[BlownCrewCab]

Buiz or anybody else know the specifics of the Camshaft on the scorps? Advertised Duration, Duration @.050, Lift & Lobe Centers???? I Just did a 408ci that needed Dry pipes due to too much cam. Now (in the next week) I'm going to start a 406 that I'd like to be able to run stock or at least "Wet" exhaust and was wondering how much cam the scorps had, Anyone know the actual specs??????

[Mr X]

Buiz or anybody else know the specifics of the Camshaft on the scorps? Advertised Duration, Duration @.050, Lift & Lobe Centers???? I Just did a 408ci that needed Dry pipes due to too much cam. Now (in the next week) I'm going to start a 406 that I'd like to be able to run stock or at least "Wet" exhaust and was wondering how much cam the scorps had, Anyone know the actual specs??????
I think I have a new one for the 377.....if I can find it. I would sell it cheap.

[MOP]

Ted is the Scorpion cam any or much hotter then the 300 Tempest cam?

[Donzi Vol]

Buiz or anybody else know the specifics of the Camshaft on the scorps? Advertised Duration, Duration @.050, Lift & Lobe Centers???? I Just did a 408ci that needed Dry pipes due to too much cam. Now (in the next week) I'm going to start a 406 that I'd like to be able to run stock or at least "Wet" exhaust and was wondering how much cam the scorps had, Anyone know the actual specs??????

Ummm...isn't there something I haven't heard about?! :confused:

[mrfixxall]

Call bob mandara @ marine kinetics,he told me mine on the 600 sc's in american lango! not mercs..

585-654-8583

[BlownCrewCab]

I think I have a new one for the 377.....if I can find it. I would sell it cheap.


Can you look and see (Please) and let me know......

[ITTLFLI]

I cant recall where i got these numbers but I have @.50 222 230 510 530 (crane #1098)for the 400hp scorpion. For reference my Indmar monsoon 340hp(350ci) is 431 451.

[Bubba Dog]

Buiz or anybody else know the specifics of the Camshaft on the scorps? Advertised Duration, Duration @.050, Lift & Lobe Centers???? I Just did a 408ci that needed Dry pipes due to too much cam. Now (in the next week) I'm going to start a 406 that I'd like to be able to run stock or at least "Wet" exhaust and was wondering how much cam the scorps had, Anyone know the actual specs??????

Hey, BlownCrewCab,
Duration at .050 In. Cam Lift; Intake 222 deg, Exhaust 230 deg.. Lobe Lift +/-.002; Intake 0.340, Exhaust 0.3534
Journal Diameter 1.8682-1.8692
Timing Chain Deflection 0.375 from taut position (total.75)

Hope this helps, Bubba:cool:

[BlownCrewCab]

Hey, BlownCrewCab,
Duration at .050 In. Cam Lift; Intake 222 deg, Exhaust 230 deg.. Lobe Lift +/-.002; Intake 0.340, Exhaust 0.3534
Journal Diameter 1.8682-1.8692
Timing Chain Deflection 0.375 from taut position (total.75)

Hope this helps, Bubba:cool:

Thanks... Do these Scorp motors come with aftermarket exhaust Manifolds or Merc's stock Cast Manifolds? I'm trying to figure the(Cam) Limit where reversion becomes a problem and what the problem is, Like where the water is introduced into the Exhaust flow, Obviously dry pipes will take all the cam with no limits but at the cost of being loud as He11. I'd like an aggressive cam with wet tail pipes even if I have to introduce the water towards the end. and is there some ratio like xx" tail pipe can have xxx duration and every inch of pipe lets me have xx more duration. and if you build a motor for a guy and it sucks water back up the pipes (reversion) Do you (as a motor builder) get 1 mulligan?

[BUIZILLA]

what is the overlap number?

[Bubba Dog]

Thanks... Do these Scorp motors come with aftermarket exhaust Manifolds or Merc's stock Cast Manifolds? I'm trying to figure the(Cam) Limit where reversion becomes a problem and what the problem is, Like where the water is introduced into the Exhaust flow, Obviously dry pipes will take all the cam with no limits but at the cost of being loud as He11. I'd like an aggressive cam with wet tail pipes even if I have to introduce the water towards the end. and is there some ratio like xx" tail pipe can have xxx duration and every inch of pipe lets me have xx more duration. and if you build a motor for a guy and it sucks water back up the pipes (reversion) Do you (as a motor builder) get 1 mulligan?

My factory '02 came with Merc cast units. No mulligans for motor builders.

[Bubba Dog]

what is the overlap number?

I have a Factory service manual (Number 7), I'm happy to look it up, tell me where to look.

[BUIZILLA]

post ALL of the cam spec's

we'll find it..

I seriously doubt it's in there, but hey, can't hurt to look..

[Bubba Dog]

post ALL of the cam spec's

we'll find it..

I seriously doubt it's in there, but hey, can't hurt to look..

That's pretty much what's there, what I posted earlier, only thing I missed was LH Rotation, I have in Metric if you want it.

[mrfixxall]

The cam also has I.R lobes