8-71 Low Profile Supercharger/manifold/spark Arrestor
02-07-2008, 11:25 AM
#11
Registered
Another advantage to the MEFI3 is spark knock protection. The computer will pull spark back out of the timing curve if it detects knock. Even though I could make more power with carbs (only because of the additional CFM), there's no way I am giving up the good idleing, easy starting hot or cold, and less maintenance of EFI (once it's set up).
Changing to carbs would also require fabbing up new linkage and changing the fuel system to low pressure delivery. Easy to do, but additional expense.
Since we have successfully done 575 throttle body injection on a 871 application, there's no reason not to when you weigh the +s and -s.
Steve
02-07-2008, 11:43 AM
#12
Registered
My thoughts exactly. My buddy has a Tiger with 575's and they are easy starting, well-mannered engines in ANY weather. Saturday, while we were rafting up, his 575s purred away while my carbs were not liking the cool weather and were a little too lean on the idle circuit. I know, simple turn of the screw but... I would love to have EFI instead of carbs.
02-07-2008, 11:53 AM
#13
Registered
Thread Starter
Jeb,
Another advantage to the MEFI3 is spark knock protection. The computer will pull spark back out of the timing curve if it detects knock. Even though I could make more power with carbs (only because of the additional CFM), there's no way I am giving up the good idleing, easy starting hot or cold, and less maintenance of EFI (once it's set up).
Changing to carbs would also require fabbing up new linkage and changing the fuel system to low pressure delivery. Easy to do, but additional expense.
Since we have successfully done 575 throttle body injection on a 871 application, there's no reason not to when you weigh the +s and -s.
Steve
Another advantage to the MEFI3 is spark knock protection. The computer will pull spark back out of the timing curve if it detects knock. Even though I could make more power with carbs (only because of the additional CFM), there's no way I am giving up the good idleing, easy starting hot or cold, and less maintenance of EFI (once it's set up).
Changing to carbs would also require fabbing up new linkage and changing the fuel system to low pressure delivery. Easy to do, but additional expense.
Since we have successfully done 575 throttle body injection on a 871 application, there's no reason not to when you weigh the +s and -s.
Steve
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