biggs

Looking for some more speed out of my 97 Baja Hammer. It's stock with 7.4, Bravo 1, and 23 mirage. It runs about 65-67 mph. Any suggestions without changing the motor?

Dave1972

Where are your RPM's? Typically a blue-printed prop will help with 1-3 MPH...anything more than that would be a huge bonus. You might want to also have someone take a look at your hull to see if it has hook in it....take out the hook and you might gain 1-5 MPH as well. Of course, if your boat is already at it's maximum potential....you might not gain anything from either of these. I would say that these two options would typically be best for your application. With the Hammer I would look at how the weight is distributed in the boat...is there any you can get rid of or move around?

Only other thing I can think of is to get inside of the engine....if yours is 7.4MPI, you are somewhat limited on upgrades. If carbed, you might be able to gain some with a different cam and/or combination with head modifications.

Lots of history with upgrades...maybe do a search for "7.4 upgrades" and see what you find???

Let us know more about your boat and we'll see if we can help

squick

Might try a stern jack.

http://www.land-and-sea.com/marine/s.../sternjack.htm

Vinny P

Your options are limited with that motor. The internals in that 7.4 MPI are cast. It is just not a good baseline to start modifying. Your better off starting fresh with something else.

375stinger

how much do those stern jacks cost?what is required in putting a strern jack on a boat with external steering.

squick

I want to say they are less than two grand, but I'm not positive. As far as the install with external steering, maybe someone with some experience will chime in. But the couple of folks I've talked to that have them swear by them.

tssteph

Look for a used one. Normally around $500. I bought one and put it on a baja 260, no help on top speed at all. The boat did handle better thought. Make sure you talk to someone that has tried it on your exact hull, especially if you buy new. At the used price you will always get your money back.

375stinger

I dnt belive i will find 3 used stern jacks, and there were very few cigarette revolutions made(ecspecially triple engines set ups), if anyone has used them on a similar hull please respond