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Jet Boats
General Jet Boat Discussions
Jet outboard hot rodding/stainless impeller questions
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<blockquote data-quote="Lil&#039; Blue Rude" data-source="post: 316879" data-attributes="member: 4627"><p>From what I've been told the Wooldridge are poor quality. Been told the casting is hit and miss whether there any good or not. The 4 blade I run in a 40/28 was a Wooldridge. Hurt top end. I'd start sharpening on yours and see what you can do with it. The reason I said I wasn't sure if your motor would have enough grunt to turn the 4blade sharpened on top is because I've not messed with them enough to know how they pick up water compared to the 3 blades. It defiantly helps the 3 blade to sharpen on top but the 4blades a different beast that I've not played with enough to come to the same conclusion. Easy way for you to decide is does your boat spin out or slip coming out of the hole wide open? </p><p>As far as the reeds, I've not changed them on your motor but it's about a 15 min job on mine. EASY to do. I you can turn a wrench I'm sure you can do it. remove breather, carbs the plate behind the carbs and you got he reed cages out. Unbolt the cages then swap the reeds out. use blue Loctite on every bolt when you put I back together. Call Chris up and talk to him about what you want. He might have some cages done up a little different then yours that would help. Some motors have rubber coated reed cages and he talks about good gains from removing the rubber and porting the cages.</p><p>As far as the grate not gonna see a big gain. Every little bit helps. Your not gonna thin them out enough to make a difference in the strength. Take a good look at the inside of the shoe and you can see there is room for improvement in flow. Take out high spots and smooth out everything.</p></blockquote><p></p>
[QUOTE="Lil' Blue Rude, post: 316879, member: 4627"] From what I've been told the Wooldridge are poor quality. Been told the casting is hit and miss whether there any good or not. The 4 blade I run in a 40/28 was a Wooldridge. Hurt top end. I'd start sharpening on yours and see what you can do with it. The reason I said I wasn't sure if your motor would have enough grunt to turn the 4blade sharpened on top is because I've not messed with them enough to know how they pick up water compared to the 3 blades. It defiantly helps the 3 blade to sharpen on top but the 4blades a different beast that I've not played with enough to come to the same conclusion. Easy way for you to decide is does your boat spin out or slip coming out of the hole wide open? As far as the reeds, I've not changed them on your motor but it's about a 15 min job on mine. EASY to do. I you can turn a wrench I'm sure you can do it. remove breather, carbs the plate behind the carbs and you got he reed cages out. Unbolt the cages then swap the reeds out. use blue Loctite on every bolt when you put I back together. Call Chris up and talk to him about what you want. He might have some cages done up a little different then yours that would help. Some motors have rubber coated reed cages and he talks about good gains from removing the rubber and porting the cages. As far as the grate not gonna see a big gain. Every little bit helps. Your not gonna thin them out enough to make a difference in the strength. Take a good look at the inside of the shoe and you can see there is room for improvement in flow. Take out high spots and smooth out everything. [/QUOTE]
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Jet outboard hot rodding/stainless impeller questions
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