How Fast???

diveboy · 10-27-2002, 07:37 PM

What would you guess the top speed for a 2001 32' Dominator pusing 600hp at the prop (prob. runing labbed 32's, Bravo 1's with 1.5 gears)? The boat currently hits 88-89mph with a pair of 500efi's (which will be for sale soon ) and labbed 30's.

I know a couple guys are getting 101-104mph out of them. One is running Whippled 500efi's and the other has 700hp at the prop! I'd like to fall somewhere in the middle!

Thanks!

augie58 · 10-27-2002, 08:06 PM

how much for the efi's complete?? tell me more tell me more.

KN · 10-27-2002, 08:26 PM

Hey Diveboy is that 88-89MPH on GPS? I've heard claims of other boats with 500's running similar speed. I just don't understand how the 500's can be 10MPH faster than my 496Mag HO's. Supposedly there's only 90 more combined horse power.

diveboy · 10-28-2002, 09:38 AM

Augie58: The motors are complete, fully dressed including wiring harness (less CMI elbow tops). They were installed in my boat back in March (02'). Still under Merc. factory warranty until I believe May/June of next year. I believe you can still purchase a 5 year extended warranty from Merc. They have between 25-30 hrs. on them now, all fresh water, no poker runs, or races, just pleasure boating! Oil was changed every 15 hrs, they're perfect! They have after market Arizona Spped & Marine flame arrestors on them (no performance increase but they look great).

I'm looking between $32-34K for the pair (but I'm open to offers). I've seen new ones in the crates (zero hrs.) for $21K. I think Merc. gets between $24-27K for them new. Let me know what you think. I can send pictures if you like....

Jon/Detroit

diveboy · 10-28-2002, 10:45 AM

Hey KN,

Those are gps speeds (88.5 mph). I'm running at 85-86 on gps with stock 30 Bravo 1's at 5000-5100 rpm. If I run the labbed 30's I run right at 88-88.5 at 5200-5250 rpm.

I've heard of a number of 32's running in the low 80's with 496HO's or 502 MPI's (82-83mph on gps). To get those speeds out of my boat, the water has to be a good solid 2-3 chop. Anything smaller and i lose a couple of mph. I'm also only running with a half tank of fuel (sometimes less) and with myself plus one on board. I'm not very familar with the the torque curve for the 496HO but I know the hp500efi has a very strong mid range punch.

Are you spinning your props in or out? If you spin them in, you can pick up 1-1.5 mph according to Wayne. I'm going to try this for next season (you will lose a little manuverability around the docks). Also, are you turning labbed props? That a 1.5-3mph gain depending! When I first started running the boat at the beginning of the season, I could only get 83-84 out of it with the stock props. It took a little testing/learning the boat to gain that extra 2-3mph.

Good luck!

You could always buy my hp500efi's !!!!!

diveboy · 10-28-2002, 11:40 AM

I listed the wrong price on my hp500efi's. I'm looking to get 28K for the pair without exhaust (I was originally selling them with CMI's and tail pipes at 32K). OPPS!