The best advice I can give you is to start a note book and record everything, engine height, gas in boat, each engine rpm's, what prop combo, air temp, water temp and so on. I also use a go-pro and take video's of my runs, it's hard to try and watch three let alone four sets of gauges. Believe it or not an 1/8" in engine height will make a big difference, so you have a lot of trial and error with two sets of motor heights. As for the props, I like the four blade dewalds, they slip less then the merc 3 blades and are easier on your drives. Boat looks great, have fun and be safe.

Carl

Thanks Carl. You're right there's a lot to keep an eye on besides focusing on the view through the 1/4 canopies that I'm still trying to get used to.
I was able to cross a couple of gremlins off the list. I had a hard start when warm issue with the port center engine. The ddt showed that the air temperature sensor was reading about 20 degrees below the other three engines. I replaced it and it starts fine now.
Also I had a no charging issue with the strbd center engine. It turned out that the harness connector for the alternator wasn't fully engaging due to the metal bracket surrounding it being distorted. Took care of that and now the volt meter is happy.
Its all getting better

Does anyone have any information to share on the effects of different rake angles and blade areas of cleaver props on bow lift or stern lift on catamaran hulls. Which is better for bow lift.
To take things to the next level, I believe that I need to move some weight back. When I let off the throttles at top speed i feel a loss of steering and the front of the boat wants to wander to port.
I will try lowering outside engines first to get more skeg in the water and see if that helps

I believe more rake will let the bow fly, and it doesn't take much to really change the attitude of a 36 skater.

Dave here is a video that have a Cris cat with four outboards:

https://www.youtube.com/watch?v=DsC2uLoHN9s

That was cool video of 1987 key west races. It was interesting seeing the reverse direction on the race course. Your cris cat looked awesome.
If you have any photos of your set up I would like to see them

You can also get 1.75's for the 2.5 cases...The 1.62's are 3.0 liter gears.

How's the new 26 bay boat running?

Great job!!!! Boat looks great!!!! Have fun

Thanks, the 26 runs 70, and is great to just go out and cruise around especially if I'm going boating by myself, easy to launch and retrieve, unbelievably frugal on gas

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which bay boat is it?