98Cobra 201,98 Johnson 225 Venom, 10' JACKPLATE. I Need motor height, prop and should i go 3 blade or 4 blade? Thanks for any help you guys can give me.
98Cobra 201,98 Johnson 225 Venom, 10' JACKPLATE. I Need motor height, prop and should i go 3 blade or 4 blade? Thanks for any help you guys can give me.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
25 Tempest with a bomb hub. Start at 3 3/4" and see how it runs.
Pat Goff
Two degrees from center
of nowhere.
Smithwick TX.
Mr Goff what exactly is a bomb hub?
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
Thank u Mr Goff.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
Mercury hub kit for Evinrude or Johnson motor.
Thank you, Sir.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
How would a 23p 4 blade ballistic fare on this setup. Iwill be ordering a tempest plus 25p anyways.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
Not much hope.
That hull wants all the bow lift it can get. That four blade won't give it.
Pat Goff
Two degrees from center
of nowhere.
Smithwick TX.
Great, thank you.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
Mr Goff, i finally got a Tempest 25p. But im blowing out on launch. It has one plug missing. With the motor at 3.5 below pad.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
Review your setup.
Nothing like a transducer blocking water flow?
Do you have another plug? Duct tape works to test.
Known good prop? Little bit of tip cup makes a difference.
Or start dropping 1/4" at a time to find some bite. Johnrudes can't run as high as a merc.
Pat Goff
Two degrees from center
of nowhere.
Smithwick TX.
Mr Goff, i finally got a Tempest 25p. But im blowing out on launch. It has one plug missing. With the motor at 3.5 below pad.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
Hey Mr Goff, i installed some small plugs, now it will take off, but it takes forever for the RPM's to build up and the boat wheelies for a long time before its on plane.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
Do you have the plugs with the small holes in them or are they solid? What exactly do you have?
S, for small. It had 2 large and one plug missing.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
If it bogging on take off which it sound like your doing it needs more venting on the blades. If you still have the large plugs that came with the prop put one of those back in it and try it again. Your trying to get between 3500 and 4000 rpm's at take off. They don't all have to be the same size either.
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
all 3 small right now. initially it had 2 large and one missing(open).
Mastodon1977
1998 Cobra 201
1998 Johnson 225HP Venom
You're prob gonna need the 2 large and 1 small, but you never know.