5mm x 85mm 828 stroker motor. Need help!

kawirydr44

kawirydr44

Location
Danville, CA
Yeah I talked to my cousin wer gunna set our motors up the way they were and then switch for a bit. But if I end up stayin with the type-9 I will deff take Your guys advice and switch my ignition. So now back to my orignal ? I believe I got the answer From chuck and I might just do that cuase I can get some 44s for round 200 and this might have to do it for a little bit. College sucksss
 
kevbo

kevbo

Location
dfw
kawirydr44 said:
so people are simply saying the b pipe is better low end that's the only reason I should switch, better freestyle setup? If so I guess that'll somewhat depend on ridin style. If one rides a little higher rpm during his run a dry pipe could benifit such a rider... Correct? Or am I still missin the point
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It depends a lot on how you use the throttle and what you expect response wise. Most riders fan the throttle and need the pipe to come on early. A shorter pipe may take an extra 1/4-1/2 second to work, then riders complain about no low end. If you are ok with a little more lag then use the dry pipe. The pump setup has a lot to do with throttle response. Its an area that is almost always neglected yet hugely important to performance.
 
kawirydr44

kawirydr44

Location
Danville, CA
kevbo said:
It depends a lot on how you use the throttle and what you expect response wise. Most riders fan the throttle and need the pipe to come on early. A shorter pipe may take an extra 1/4-1/2 second to work, then riders complain about no low end. If you are ok with a little more lag then use the dry pipe. The pump setup has a lot to do with throttle response. Its an area that is almost always neglected yet hugely important to performance.
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ok and thats deff what everyone has been telling me that b pipe just has it instant from the bottom.

now will my stock pump work? i have a freestyle impeller not sure on pitch i really need to look but i never had a problem wit cavitation or anything will my small 701 but will it still work with the 828? (i know it wont be the best setup so i assume i will loose some brapp i just wanna know if it can be run for temperary use.
 
NathanMoore

NathanMoore

Location
The Delta, California and Tianjin, China
kawirydr44 said:
ok and thats deff what everyone has been telling me that b pipe just has it instant from the bottom.

now will my stock pump work? i have a freestyle impeller not sure on pitch i really need to look but i never had a problem wit cavitation or anything will my small 701 but will it still work with the 828? (i know it wont be the best setup so i assume i will loose some brapp i just wanna know if it can be run for temperary use.
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I think you'll be ok...i'd put a tbm cone in though.

Parrdaddys running a stock pump/tbm cone/13/17 with a xscream 6mm p/v motor...looks to work real good in his vid.

I'll be running a stock pump with a tbm cone on my 1000cc too...but we'll see how that goes...
 
C

Camm08sj

Location
australia
NathanMoore said:
I think you'll be ok...i'd put a tbm cone in though.

Parrdaddys running a stock pump/tbm cone/13/17 with a xscream 6mm p/v motor...looks to work real good in his vid.

I'll be running a stock pump with a tbm cone on my 1000cc too...but we'll see how that goes...
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wat length cone is he running on the tbm? and wat kind of 1000 will you be running? im hoping to get away with a stock pump on my 10mm ada too.
 
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kevbo

kevbo

Location
dfw
kawirydr44 said:
ok and thats deff what everyone has been telling me that b pipe just has it instant from the bottom.

now will my stock pump work? i have a freestyle impeller not sure on pitch i really need to look but i never had a problem wit cavitation or anything will my small 701 but will it still work with the 828? (i know it wont be the best setup so i assume i will loose some brapp i just wanna know if it can be run for temperary use.
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Pump tuning is the most time consuming and nerdy part of the game. It takes a lot of testing, measuring, and blade bending to get it just right. I consider a stock 13-17 concord to be the standard prop these days. Too much for a 701-760 and not enough for a bb stroker. Borrow one of those and note how fast it responds and your rpm during acceleration.
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Impeller isn't everything, either. After you dial that in, you need to play with reduction nozzle size. There was a BIG difference between an 82.6mm and an 84.0mm nozzle on my setup.
 
kevbo

kevbo

Location
dfw
Matt_E said:
Impeller isn't everything, either. After you dial that in, you need to play with reduction nozzle size. There was a BIG difference between an 82.6mm and an 84.0mm nozzle on my setup.
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Without a doubt, I use an 85mm nozzle as standard with 144 pumps. I plan to make a custom nozzle that is expandable to 90mm. But first I want to do a 155 conversion.
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
FWIW, the 82.6 nozzle worked far better than the 84mm nozzle on my setup. Bigger isn't always better.
 
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