Freestyle Big Bore engine Limits???

[lakeboy183]

iv heard about all the things you have to do to run a big engine so i have a few questions..

if i were to install a 1000 with out a mag pump or power factor pipe and just run a B pipe and stock pump with cone and hooker,, what would my results be??

How well would a 900 work with just a B pipe and stock pump cone and hooker??

dumb questions but any input would help alot, thanks guys

 

[steve-uk]

i was always told sort out your drive line first (grate/plate/prop) before motor, in your case you would be better to get the mag then motor as a lesser motor will still work with the mag where as a bigger motor and no mag wont allow you to translate the engines power fully

 

[Big Kahuna]

iv heard about all the things you have to do to run a big engine so i have a few questions..

if i were to install a 1000 with out a mag pump or power factor pipe and just run a B pipe and stock pump with cone and hooker,, what would my results be??

How well would a 900 work with just a B pipe and stock pump cone and hooker??

dumb questions but any input would help alot, thanks guys

you would be better off going with a well set up smaller motor than spending all the money on a 1000cc motor. You would be getting more power to the water this way.

It is all about the package.

 

[Matt_E]

Just on my standard 61X big bore, the difference between stock pump and mag pump was incredible.
I'd go with that first.

 

[iptamenos]

Just on my standard 61X big bore, the difference between stock pump and mag pump was incredible.
I'd go with that first.

+1

 

[Waternut]

Well I have to ask... You're planning to get a 900-1000cc motor now. Is the plan to buy a mag pump later? If so, how much later? Are you planning on buying a used engine for some sweet deal or are you planning to buy brand new?

I can understand running a stock pump temporarily if you found some amazing deal on an engine and can't afford both. Buying the mag pump first and getting a smaller motor only to try and change motors later would be like throwing money away. However, spending $10k+ on a gigantic motor only to ride for a year or more on a stock pump is also throwing money away because next year, the motors will be more advanced and will inevitably be producing more power.

 

[lakeboy183]

thats my plan in to just run the stock pump for just a summer then get the mag

 

[lakeboy183]

what about limits with running a B pipe

 

[Billybo455]

a b pipe in my opinion kills a lot power. sure the down low may be a tiny bit better, but everything else just sucks comparted to a dry pipe. but yeah, you can run it depending on whatever powervavle setup you'll be running if any at all.

 

[lakeboy183]

its only for a summer then ill get everything i need to complete it

 

[Waternut]

With a big engine like that, I'd say dry pipe for sure. Not sure what kind of pipe you plan to buy but I bet you could trade your b pipe for a dry pipe.

 

[lakeboy183]

if i buy a pipe ima do it right with a power factor

 

[kevbo]

The Mag pump primes faster and handles white water better than stock pump so the results will depend on how and where you ride. A big engine may not make any more power than a smaller one but is usually more responsive. The pump will begin to struggle at low speeds when you get a good drypipe.

 

[lakeboy183]

what size of mag pump would you guys recomend?? 148??

 

[McDog]

I ran a 144 with my 850 ADA cylinder motor and it hooked up great in my BOB hull. For flatwater I think the mag pump isn't that big of a deal. The surf riders love how it hooks up in white water but the extra weight isn't really worth it in flatwater. It does seem to hook up a little better but it is not a night and day difference.

 

[Matt_E]

what size of mag pump would you guys recomend?? 148??

Talk to your engine builder.

 

[Billybo455]

The Mag pump primes faster and handles white water better than stock pump so the results will depend on how and where you ride. A big engine may not make any more power than a smaller one but is usually more responsive. The pump will begin to struggle at low speeds when you get a good drypipe.

huh????

 

[kevbo]

Basically you need a larger pump and inlet for best efficiency at low speeds. Adding impeller pitch will work once the ski is moving but not so well out of the hole. A good example of a mismatched engine/pump is the FX1. Large hubs fill a dead spot where water and air tend to recirculate, thats why they prime faster.