|
|
Post by mike2700 on May 7, 2021 9:44:18 GMT -5
Hi guys, my first Regal. I love everything about it but find that it is slow to accelerate. It takes 9 seconds from 0 to 20mph. WOT is limited to 3300 RPM prior to planning. Once on plane the throttle position and power response is much better. WOT on plane is 5200 RPM, 48mph. Half fuel load, no fresh water or grey water, 2 adults. I’m operating a VP 380hp, DPS B.
Does this sound like normal acceleration performance for a 6000lbs boat? Basically I’m wondering if the RPM is somehow being governed.
|
|
|
|
Post by kdubya on May 7, 2021 17:42:08 GMT -5
That is not normal. Is the boat trimmed all the way down? Is the boat from a different part of the country where the altitude would have meant a different prop set? It does seem odd that RPMs would be held down as you describe, like a programmed limitation.
|
|
|
|
Post by mike2700 on May 7, 2021 23:05:56 GMT -5
The boat is fully trimmed down. We are on the ocean so altitude is not contributing factor. Good consideration though.
|
|
|
|
Post by lg260ss on May 8, 2021 6:02:23 GMT -5
The 2013 Vp 380 was a 6.0l Gen 4 engine. WOT should be 6000 rpm. WOT while planing will be much lower than that, I don’t know if 3300 is too low for that boat. Do you know what prop set you have? The hole shot should be robust with that engine, does it get up on plane quickly?
|
|
|
|
Post by mike2700 on May 8, 2021 6:43:09 GMT -5
Ok, I’m only getting 5200RPM WOT so I’m losing 800 RPM on the high end, I will investigate that. May that little extra is what I need to increase the holeshot performance? Secondly, I’m not sure which specific prop set, it’s definitely a Volvo-penta duoprop . Drive unit plate: 2.14.DPS-B / 21766685 / A213516. Unsure of the exact metal type, pitch and sizes.
|
|
|
|
Post by mike2700 on May 8, 2021 6:45:16 GMT -5
To answer the previous question about planning. No it’s slow to plane then accelerate quickly.
|
|
|
|
Post by partizancudjoe on May 8, 2021 20:13:22 GMT -5
Sounds too me like you've got the wrong prop set on there.
|
|
|
|
Post by mike2700 on May 9, 2021 8:36:27 GMT -5
My mechanic says that the prop set is factory and in good shape.
|
|
|
|
Post by mike2700 on May 9, 2021 8:36:41 GMT -5
My mechanic says that the prop set is factory and in good shape.
|
|
|
|
Post by hawker63 on May 9, 2021 9:24:14 GMT -5
Not knowing the boat, I had luck with Regal, I sent them my Hull number, motor and they sent back the OEM props, and a chart of speed/fuel and expected top end.
I read an article on the VP 6.0 liter, 380 HP which says the sweet spot for this engine is 4500. Max is 6000 but that’s hard on an engine. If you are peaking at 5200, normally 3 things, too much pitch, fuel injectors/fuel system holding back the motor or the boat is really heavy and possibly lots of buildup on the hull. Even if the mechanic says prop is correct, I’d check with Regal. I’ve had “mechanics” that really don’t understand relationship between pitch and rpm. If Regal confirms the prop is right, then I’d have mechanic put pressure gauge on the fuel pump and do a run and also strobe the engine to make sure the tach reads correctly. Even if all good, you can swap top end for hole shot by dropping pitch. Used to be the trick for water skiing, you needed hole shot more than top end and most didn’t have the cash for a bigger motor. Good luck.
|
|
|
|
Post by gofast24 on May 9, 2021 9:58:24 GMT -5
Agree, most plaining hulls will not get to rated WOT RPM until on plane. possible dirty fuel filter, pump, plugs, etc. etc. ?
|
|
|
|
Post by mike2700 on May 9, 2021 11:19:11 GMT -5
Awesome considerations. I replaced fuel filter, plugs, coils, injectors removed / cleaned, and the hull was anti fouled 2 months ago. Never considered the fuel pump, good idea. My last resort is to replace the props which I agree is the optimal solution to increase holeshot performance.
Rather than slamming the throttle from a standstill; today I slightly increased the throttle to 1200rpm then slammed it. Much better pickup, that might support the fuel pump diagnosis??
|
|
|
|
Post by lg260ss on May 9, 2021 15:52:49 GMT -5
Awesome considerations. I replaced fuel filter, plugs, coils, injectors removed / cleaned, and the hull was anti fouled 2 months ago. Never considered the fuel pump, good idea. My last resort is to replace the props which I agree is the optimal solution to increase holeshot performance. Rather than slamming the throttle from a standstill; today I slightly increased the throttle to 1200rpm then slammed it. Much better pickup, that might support the fuel pump diagnosis?? Slamming the throttle forward from a standstill will never give you a good hole shot. Have you tried trimming up some at WOT. Getting the hull out of the water a bit will increase the rpms. |
|
|
|
Post by russell718 on Aug 5, 2021 14:54:28 GMT -5
Awesome considerations. I replaced fuel filter, plugs, coils, injectors removed / cleaned, and the hull was anti fouled 2 months ago. Never considered the fuel pump, good idea. My last resort is to replace the props which I agree is the optimal solution to increase holeshot performance. Rather than slamming the throttle from a standstill; today I slightly increased the throttle to 1200rpm then slammed it. Much better pickup, that might support the fuel pump diagnosis?? Slamming the throttle forward from a standstill will never give you a good hole shot. Have you tried trimming up some at WOT. Getting the hull out of the water a bit will increase the rpms. |
|
|
|
Post by russell718 on Aug 5, 2021 15:02:33 GMT -5
2003 Regal 2860: the A/C salt water pump does not turn on at all. It is either the pump itself, or the main unit is not connecting voltage. I would like to check the units voltage or possibly a internal fuse. I’m currently 30 screws into looking for access with no luck. How do I get to this units power strip?
|
|
