To surge or not to surge
 

This EFI is cool :D

https://www.youtube.com/watch?v=mkgB...ature=youtu.be

added 14* of timing with switch on

That would be great when docking

Dan , just not the same without the surge . Distinctive blower motor attribute otherwise your boat would sound like mine an NA motor boat boat with a blower hatch lol . RG .

Personally I'm not a fan of blower surge.

A lot of efi's have a timing vs rpm table for idle. Higher idle rpms usually you pull timing, lower than target rpm you add timing. No switch needed.

I know quite a few guys that don't run an iac and just use the idle rpm vs timing table with good results.

That’s so freakin cool!

fyi. I love blower surge!

I love it!

That is cool, if you want people to know they are blower motors press a button!

I just noticed, is that a crank trigger? Even without surge just looked to be jumping some.

The display is not measuring timing, it’s displaying its target, which moves with rpm, vacuum, ect, iat, and other parameters

It`s displaying real time timing but it`s a EFI so it is trying to control desired idle with timing /fuel etc .

During surge that IAC is working overtime to try and control that idle thou lol

I think you`re missing the entire point of a fun switch that makes the boat surge .. but if you don`t like surge then this switch is not for you :flag:

anyone know why Sorcerer the skater with the wild paint had a very hard blower surge?

That's freakin cool!

for sure

Prob because the injector set up (above and below supercharger) and ecu's used. Not too mention huge by large blowers, air shifted clutches for trans, etc, etc :) It was a pretty long time ago, so maybe not able to control it. Ran into them a few times in FL and it was badddddd azzzzzz. They made most of their own stuff. Their older cat had carbs, 14-71's, Big Chiefs, #6's, and etc..., and that would surge hard as they came idling in thru the inlet in Fort Meyers Beach on the Lovers Key side..
BTW: Really great people, in the short times I leaned over the side drooling like a Mstaff in 100 degree weather. LOL.

Anyway, again, I think they where making things on their own to deal with this but electronic technology wasn't good enough yet.

My 02.

That super high pitch blower surge Sorcerer made with those dry exhaust was INSANE! Almost like the "zing" you hear when a #6 prop jumps out of the water when running hard. Didn't it have the GIANT PSI blowers in it? What ever happened to that thing?

its been a while but i think those massive blowers on scoceror were there design. they were ahead of there time for sure. ill never forget the first time he came rolling thru party cove in there little talon with one of those massive engines in it. was definitely the center of attention!

Hot for Teacher has a very nice surge. Yes keep the surge.

Yeah it does.

Kelly's tiger has a nice little surge too and it's LOUD AF!

That's badazz man!

i remember talking to them about the blower it had one rotor larger than the other maybe Eaton?

This just shows the flexibility of EFI! Good work Dan! (Just don't forget to turn that switch off before you hammer down!!! :drink:)


Still hanging out at Ron's shop in Iowa.

https://cimg5.ibsrv.net/gimg/www.off...8d7684d246.jpg

Fire that bad boy up!! Let's hear it! :drink:

HFT is getting 100% rebuilds at the moment and adding EFI as well