nothing left need some suggestions.
#1
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nothing left need some suggestions.
00 42 tiger, fresh motors, 600 hp xrs and 26 p 4 blades.
While running everything stops at 5K, have checked the rev limiters, they are at 5800 am checking throttle stops today, the boat runs great but dont know why it hits the wall. I figured with the 26's I would be bumping the limiter but I'm way off. Will having too small of a prop do this?
While running everything stops at 5K, have checked the rev limiters, they are at 5800 am checking throttle stops today, the boat runs great but dont know why it hits the wall. I figured with the 26's I would be bumping the limiter but I'm way off. Will having too small of a prop do this?
#3
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Re: nothing left need some suggestions.
speed is 69-70 and drives are 1.5's. Was running 73 last year and spinning at 5100-5200 with the same props, stock 26's..
#4
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Re: nothing left need some suggestions.
Something is not right and unless you have some obvious prop damage I don't think it's a prop issue.
Too small a prop will not cause the problem you have. I would go over the motors to figure out what's going on.
When you say the motors are fresh what was done to them? Was there a cam change, carb change, heads, etc. Something with the motors is different from last year. I would figure out what's going on with the motors. Do you have dyno sheets for these motors?
Matt
Too small a prop will not cause the problem you have. I would go over the motors to figure out what's going on.
When you say the motors are fresh what was done to them? Was there a cam change, carb change, heads, etc. Something with the motors is different from last year. I would figure out what's going on with the motors. Do you have dyno sheets for these motors?
Matt
#5
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Re: nothing left need some suggestions.
Originally Posted by throttleup
Something is not right and unless you have some obvious prop damage I don't think it's a prop issue.
Too small a prop will not cause the problem you have. I would go over the motors to figure out what's going on.
When you say the motors are fresh what was done to them? Was there a cam change, carb change, heads, etc. Something with the motors is different from last year. I would figure out what's going on with the motors. Do you have dyno sheets for these motors?
Matt
Too small a prop will not cause the problem you have. I would go over the motors to figure out what's going on.
When you say the motors are fresh what was done to them? Was there a cam change, carb change, heads, etc. Something with the motors is different from last year. I would figure out what's going on with the motors. Do you have dyno sheets for these motors?
Matt
#7
Registered
Re: nothing left need some suggestions.
You may have to do some prop work to get the rpm up over a hump. Then the motors may make more power and bring the rpm where it needs to be.
If you can get your hands on some stock 24's that would be a good place to start. They should run close to the same rpm as lab finished 26's so they would give you a good idea of what the motors will do with a lower pitch prop or lab finishing.
If you can't find stock 24's to run we have them available in our test prop program.
Matt
If you can get your hands on some stock 24's that would be a good place to start. They should run close to the same rpm as lab finished 26's so they would give you a good idea of what the motors will do with a lower pitch prop or lab finishing.
If you can't find stock 24's to run we have them available in our test prop program.
Matt
#8
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Re: nothing left need some suggestions.
I agree to down pitch to see if the motors will pull past the 51-5200 range. If they only pull to 5300 with 24's, the power hasn't gone up in that range. It would be a natural progression meaning the power curve will not pull 26's beyond the normal Lab Finishing rpm gain of 5200-5300.
See if you can get a dyno reading done.
See if you can get a dyno reading done.
__________________
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
#9
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Re: nothing left need some suggestions.
Great talkin with you again yesterday Brett, props being labbed will test on Sat, let's hope our theory turns into a reality...Rob