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View Full Version : Need Input: 1:22 vs 1:1 ratio Ilmor 5.7L


Goinbroke
07-27-2012, 05:12 PM
I'm looking at a boat that has an Ilmor 5.7 with a 1:1 ratio. Does anyone have an opinion on whether or not this will matter on a ProStar? I Like a torquey bottom end and ski at high elevation where N/A Motors suffer a 15% loss in HP.
Can I prop the boat to get the snap I need? Or am I going to sacrifice to much top end?

Any thoughts will be much appreciated.

JohnE
07-27-2012, 08:03 PM
Always take the powerslot. I realize the Ilmor may have more HP than my MCX, but based on my MCX with 'slot I would never buy a 2001 or newer Prostar without it. Older Prostar I would consider.

barefoot
07-27-2012, 08:06 PM
Slot...No question about it. If you like a torque bottom end, you won't be satisfied with a 1:1

east tx skier
07-27-2012, 08:51 PM
It will be fine, but if you have a choice, always take gear reduction. It rules. No MC is currently USAWS certified with a 1:1.

Goinbroke
07-28-2012, 01:35 AM
Does anyone know if adding a PowerSlot is difficult and or Expensive?

JohnE
07-28-2012, 07:22 AM
To a brand new boat that came from the factory with a 1:1? Never heard of it being done in all my years here, so I'm guessing it isn't worth it or feasible. (Anything is possible)

mckevin
07-28-2012, 10:18 PM
I got to drive a buddy's boat today with 1:1. When I was back in my boat, the difference is very obvious. The powerslot helps a lot! I new there would be a difference, but it was more than I anticipated.

Goinbroke
07-29-2012, 10:15 PM
I got to drive a buddy's boat today with 1:1. When I was back in my boat, the difference is very obvious. The powerslot helps a lot! I new there would be a difference, but it was more than I anticipated.

Which boat was it?

mckevin
07-30-2012, 07:13 AM
My '09 PS 214 LY6 w/ 1.22:1, his couple years older PS 190 with 350 and 1:1. His boat is lighter, of course. But to drive them, wow. As soon as you click them in gear the difference is there. With my boat the nose comes up at idle and it moves so easy. The boat responds so much more to small throttle inputs at slow speeds. My friend was driving my boat. He is 45 ish grown man, with many years on the water. He was trying to teach a couple of kids to ski with my boat. Every time he was pulling them over forward. He was having a very hard time adjusting to the extra pull the boat had. In my opinion there is quite a difference between the two. Well justifying the cost difference.

Goinbroke
07-30-2012, 03:59 PM
Thanks a Ton!

Ill be emailing you.