more testing ae21 300 pm

[apexfx]

well tried a re4 30 pitch 4 inch set back 5400rpm 82 mph
then went to 10 inch setback re4 30 pitch 5800 rpm 84 mph
what to do next?

[JWTjr.]

boat sounds heavy and/or hooked...post photos or videos of best top end runs.

JT

[baja200merk]

It wouldnt pull any more then 5800??? Is the motor on 5cyls or not getting wide open throttle?

I put a 200HO etec on my brothers vector with the 34 it came out of the hole bad with 2 people figured it was because the exhaust was not relieved. Still pulled the 34 5800 before the girl friend started hitting me. Later put it on the computer and found out it was not firing #3 injector :eek: never even tripped the check engine light on the gauge :confused:

[imq707s]

Something sounds strange.........my Vegas with a 200 OMC Looper will run 82mph, and you have 100hp more....you should be running MUCH faster.

1. What's the pad look like? Is it straight and flat?
2. How high are you running the gear case under/above the pad?

300hp on that boat should be well into the upper 90's I would think ...or even faster.

[Capt.Insane-o]

Whats next? Weigh it.

[apexfx]

we even tried adding anothere person,he wieghs in at 250,not much if any change

[apexfx]

last year got 76 with 2 people and 78 with one and my 225 yamaha

[rev.ronnie]

When you are accellerating, and you hit around 70, does the boat really start to lighten up and fly? It should start packing air and really respond to trim changes.

I know the AE has a different windsheild dynamic than the HST but I would think it would fly similarly. It would be interesting to pull the windsheild and run it.

The lack of significant speed difference with a passenger is concerning...it's like it is not flying but rather pushing through the water.

I agree, it would be great to see a running shot. The whole front of the pad before where is steps up midship should be running high and dry.

[apexfx]

around 60-65 she lifts

[rankink]

I am running 16 inches of setback on HST with a worked 2.4 (about 250 HP) and am hitting 94 with a 28 hoss triton. This is with the saft at about 2 inchs above the pad. What is your water pressure at top speed because if it is still really high you are dragging too much of lower unit in the water and might need to raise it more.

[baja200merk]

I am running 16 inches of setback on HST with a worked 2.4 (about 250 HP) and am hitting 94 with a 28 hoss triton. This is with the saft at about 2 inchs above the pad. What is your water pressure at top speed because if it is still really high you are dragging too much of lower unit in the water and might need to raise it more.
another example how much setback helps these boats. Again my buddys stock 1988 200 Johnson pushes his low 90s with 18in setback.

I wish you were closer I'd let you run my 34 that thing should be running 100+....

[2.5_stoker]

well tried a re4 30 pitch 4 inch set back 5400rpm 82 mph
then went to 10 inch setback re4 30 pitch 5800 rpm 84 mph
what to do next?

add more set back and get a bigger prop!....everyone keeps telling ya that set back is key...look what 10" did vs 4"

[rankink]

I wish you were closer I'd let you run my 34 that thing should be running 100+....

Thanks, but luckily I have access to a lot of props to borrow. So I will be trying quite a few this summer.

[baja200merk]

Thanks, but luckily I have access to a lot of props to borrow. So I will be trying quite a few this summer.

Your welcome but I was talking to Apex the OP since his boat has that pesky limiter I'm so used to. :thumbsup: