msd total loss or mag pump

Hey guys my buddy is riding a kawasaki 750 sx with novi 44mm, b pipe, skat track prop, bored and ported not sure specs, 190 compresion on shaved stock head running av fuel. He wants to know the next big step and thinks its either total loss or mag pump give me your input and the pros and cons. thanks guys Brad:ugh2:
 

FlightPlanDan

Don'tTrustAfartAfter50
I'm no expert, but a mag pump rocks surf or flat.

I ride surf, and my buds with TL have gone back to a charging system. They say TL is great for flat water, but has issues in the surf.
 

Waternut

Customizing addict
Location
Macon, GA
Wouldn't putting a mag pump on a fairly basic limited motor be like putting drag slicks on a miata? I've only tried one guys ski with a mag pump and a huge engine and I'd still go total loss first every time. IMO you don't need big power in the surf but you do need hook up. In flat water, you can get adequate hook up with a quality top loader and the right prop but what good is hook up if you don't have enough power to get the ski out of the water in the first place?

Lastly, you can get a decent used digital total loss system for under $500-$600... Good luck finding a mag pump with a prop for anything close to $1000. There are guys on here who have been searching for a used mag pump for months and come up with nothing. New pumps are the better part of $1300-$1600 without a prop.
 
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FlightPlanDan

Don'tTrustAfartAfter50
Wouldn't putting a mag pump on a fairly basic limited motor be like putting drag slicks on a miata? I've only tried one guys ski with a mag pump and a huge engine and I'd still go total loss first every time. IMO you don't need big power in the surf but you do need hook up. In flat water, you can get adequate hook up with a quality top loader and the right prop but what good is hook up if you don't have enough power to get the ski out of the water in the first place?

Lastly, you can get a decent used digital total loss system for under $500-$600... Good luck finding a mag pump with a prop for anything close to $1000. There are guys on here who have been searching for a used mag pump for months and come up with nothing. New pumps are the better part of $1300-$1600 without a prop.
That's a good/valid point.
The bud's I was refering to have got big power.
But, power or not, the issues with TL in the surf seem to have nothing to do with power. More to do with water & losing spark on a cylinder etc...

Are you saying also, that a mag pump would not give serious performance enhancement to a 701? (with a decent impellor)?
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Wouldn't putting a mag pump on a fairly basic limited motor be like putting drag slicks on a miata? I've only tried one guys ski with a mag pump and a huge engine and I'd still go total loss first every time. IMO you don't need big power in the surf but you do need hook up. In flat water, you can get adequate hook up with a quality top loader and the right prop but what good is hook up if you don't have enough power to get the ski out of the water in the first place?

Lastly, you can get a decent used digital total loss system for under $500-$600... Good luck finding a mag pump with a prop for anything close to $1000. There are guys on here who have been searching for a used mag pump for months and come up with nothing. New pumps are the better part of $1300-$1600 without a prop.


The hookup on flatwater between a stock pump and a mag pump is huge (when properly set up). Acceleration and speed gains are huge.
Honestly, I got more performance out of the pump than the TL.
I think it just put the power to the water better. Had I gotten the mag pump first and then the TL, I am sure I would have gotten the impression that the TL made a larger difference.
But don't discount a mag pump for flatwater. They are awesome.
 

FlightPlanDan

Don'tTrustAfartAfter50
so do you guys think hes got the power to push the mag pump i didnt think it was a prob but ive never had a mag pump or a mild built 750
A mag pump doesn't "make power". It makes the power you make more efficient. It will make any motor better, but you wouldn't want to spend the money to make a 650 wake up.
Mag pumps cost a lot compared to TL.
 

Waternut

Customizing addict
Location
Macon, GA
The hookup on flatwater between a stock pump and a mag pump is huge (when properly set up). Acceleration and speed gains are huge.

That's the next issue and I've talked about this before. When buying a motor from a reputable engine builder, that builder should be able to give you a good idea of what pump and impeller combo to go with for best results. Since we've talked in the past about how touchy a mag pumps tuning can be, would anyone even be able to give him a valid starting point without him having to repitch the impeller multiple times and just piss into the wind until he's happy with the results? I've said this before as well... I DO want a mag pump but until I'm given clear direction on what the best pump size, impeller pitch, nozzle size, and pump cone combination will be for my motor, I plan on leaving these awesome pieces of equipment to those with more dedication than myself. I want to ride 95% of the season not tune 95% of the season.

On the other hand, total loss will definitely produce power gains on a 1000cc xscream motor or a 650 kawi without requiring changes to anything else. Setup certainly sucks the first time you do it but after that, it's cake.
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
There's a very easy solution: Talk to a reputable engine builder :biggthumpup:

Or, hitch yourself to the bandwagon.
 

Scorn800

Ride for life
Location
North NJ
As with any set up, you can't just "bolt on stuff" and think it going to run right. You need a general guide line. Knowing what you current combo is pulling with RPM numbers. Is where to start
 
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