Which Size DP from Tahoe to sea level?

[Mdmonterey]

I purchased a 1995 220, VP 7.4 GL-DP, carbed, 1.78 ratio drive, that was a Tahoe only boat. Now using at elevations 300-1100 and now getting wot 5k rpm, 50 mph (short test) need to be at 4600 max. Running B3 props, want to move to SS, reduce wot to 4400 rpm max, pull skiers and gain higher speed, any recommendations on which size VP props would be great.

[AsLan7]

Hello Mdm. Welcome to the Cobaltchat forum. So glad you found us!

What pitch Merc props are you running now? Kind of surprised Merc B3 props work on a VP duo prop drive.

any pics?

Again, welcome aboard mate!

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[Big Block Power]

Your prop going to want to go to a b4 prop but they also say to such to a type j alum prop. Then going to SS to go to a C type prop.

[Big Block Power]

Hello Mdm. Welcome to the Cobaltchat forum. So glad you found us!

What pitch Merc props are you running now? Kind of surprised Merc B3 props work on a VP duo prop drive.

any pics?

Again, welcome aboard mate!

.

A7 b3 is the size of a Volvo prop. I know I was thinking the same thing. Lol. I'm like they are already SS. Lol

[AsLan7]

Hello Mdm. Welcome to the Cobaltchat forum. So glad you found us!

What pitch Merc props are you running now? Kind of surprised Merc B3 props work on a VP duo prop drive.

any pics?

Again, welcome aboard mate!

.

A7 b3 is the size of a Volvo prop. I know I was thinking the same thing. Lol. I'm like they are already SS. Lol

.
Ahh. Thx brutha.
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[cmattj]

Look for some C7 props. That should give you pulling power and good speed for your set up.
Were are the pics?!?. Are we boating in the Delta?

[1995 Cobalt 220]

Bouught a '95 from Lake Havasu with B-7 props......Found a set of B-4's on EBAY. W/ 5.7 VP dp; boat will redline, w/ full load on Tahoe......