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Author Topic:   93 Rage Jet
peter l posted 07-08-2002 01:42 PM ET (US)   Profile for peter l   Send Email to peter l  
Has anyone used any ride plates,intake scoops or impellors to improve performance and lessen cavitation. If so what types?
peter l posted 07-08-2002 01:48 PM ET (US)     Profile for peter l  Send Email to peter l     
Sorry It is 13'6" model with yamaha eng. and jet.
Bigshot posted 07-08-2002 02:51 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
That 50hp Yamaha is pretty enemic when mated to a jet. Your best bet will be in the impellor. The intake scoop and ride plates are mainly for handling andd water intake, etc. You can't get blood from a stone.....sorry!
tuna1 posted 07-08-2002 10:42 PM ET (US)     Profile for tuna1  Send Email to tuna1     
The very 1st. thing you should do is to weigh boat and trailer to come up with a hull weight. The 1st Rages with the Yamaha Wave Runner III drive system have a problem with water in the hulls.I have 2-1992 i am working on.One with bottom damage and one that looks perfect,but that weighed 400 lbs more due to water damaged foam core. There is a error Whaler made in the hull that allows water to enter the hull.Most 1st Rages will need to dry out and then fix the error in the hull.The Bad Performance Rap the early Rages have,as i have seen,are due to water logged hulls being just too heavy for the jet pump.When new or a dry hull,with good pump clearances,the performace is excellent for the Hp.You must have a dry hull,with a tight impeller to wear ring clearance to have the boat perform.If you you are experiencing cavitation now,you most likely have a heavy hull/with a worn pump. Weigh the boat then get back here,posting the results,then i will give tips to performance upgrades that work.
peter l posted 07-09-2002 09:11 AM ET (US)     Profile for peter l  Send Email to peter l     
I will check the weight. I assumed it was around 850Lbs. Boat has rarely been in water. It was tender to big boat. It does get up to speed, but you have to ease it along with a full load or it cavitates. Once on plane it moves along great. I will try to get to scales and report back. My goal is to get more power, not top end.
tuna1 posted 07-09-2002 11:42 AM ET (US)     Profile for tuna1  Send Email to tuna1     
Peter was this the one for sale down in Essex Ct.?
peter l posted 07-10-2002 04:59 PM ET (US)     Profile for peter l  Send Email to peter l     
No I found it out in Ohio a year ago. It was garaged for years. Guy bought it new and trailerd it to Hilton Head when he went for his week vacation. Used it once a week once a year for three years. I went over it pretty well. It was immaculate. I have kids and fear props, so it suited me fine. I bought for my tender, but decided to go with PWC instead. Still think it is neat idea, but know it could be tweaked to perform better. I do not want speed as it is plenty fast for my kids. It would be nice to be able to tow a kid with an adult and a couple of kids.

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