1995 Pro boss / Pro tec

beretta5spd wrote: Well crew here's the status of the Sport Nautique...... IT RUNS AMAZING. First and foremost. HUGE THANKS TO ROB AKA JOHNNY QUEST He took multiple phone calls with questions about swapping the Pro Boss TBI over to the Quick Fuel m600 carb. We had virtually the same problems arise from our separate installs so he easily walked me through a stuck secondary float issue hahaha. She actually looks better with this tower than the old boat did.... had to widen it roughly 7 inches. IMG_2786 by Dwight Kinley, on Flickr Untitled by Dwight Kinley, on Flickr Photos of the quick fuel: IMG_2732 by Dwight Kinley, on Flickr IMG_2760 by Dwight Kinley, on Flickr Youtube of it firing up. This thing runs so good. https://www.youtube.com/watch?v=ia6SJ4JoHJo Parts used: Quick fuel m600 carb Carter M60389 pump Sierra 18-8115 fuel line (pump to carb) A couple fittings to attach the fuel lines to the carter. In line fuel filter. The best part about this setup IMO: It idled so good after a 30 second hi idle at startup. Settles in at about 750 rpm. When I engage the trans... ZERO rpm drop. When you hammer the throttle... BAM no hesitation. I'm so impressed with this unit... Thanks to everyone who said to ditch the TBI and quit trying to find an injector. Bring on summer 2020!

OMG I just realized that the guy who sold me the boat had a wrong prop as a spare.

Wow.

I need to get the 1579 checked over and find someone with a Super Air 210 or GS 20 who needs a spare

Glad to help out!

JQ

High RPM limit is based on the prop that you have. What are the specs for your wheel?

Hey guys here's a question for you.

I only got to run the boat last year with a NFG injector and couldn't hit over 4400 (unless that was standard rev limiter for 1995 Pro Boss TBI.

After the carb conversion... I tested to see how high the rpm would go. I hit 5100 rpm and it was still climbing. Did the rpm limit come from the EFI system before? I always thought that rev limit came from ignition.

Thanks for the help

Well crew here's the status of the Sport Nautique......

IT RUNS AMAZING.

First and foremost.

HUGE THANKS TO ROB AKA JOHNNY QUEST

He took multiple phone calls with questions about swapping the Pro Boss TBI over to the Quick Fuel m600 carb. We had virtually the same problems arise from our separate installs so he easily walked me through a stuck secondary float issue hahaha.

She actually looks better with this tower than the old boat did.... had to widen it roughly 7 inches.

IMG_2786 by Dwight Kinley, on Flickr

Untitled by Dwight Kinley, on Flickr

Photos of the quick fuel:

IMG_2732 by Dwight Kinley, on Flickr

IMG_2760 by Dwight Kinley, on Flickr

Youtube of it firing up. This thing runs so good.

https://www.youtube.com/watch?v=ia6SJ4JoHJo


Parts used:
Quick fuel m600 carb
Carter M60389 pump
Sierra 18-8115 fuel line (pump to carb)
A couple fittings to attach the fuel lines to the carter.
In line fuel filter.


The best part about this setup IMO:

It idled so good after a 30 second hi idle at startup. Settles in at about 750 rpm. When I engage the trans... ZERO rpm drop. When you hammer the throttle... BAM no hesitation. I'm so impressed with this unit... Thanks to everyone who said to ditch the TBI and quit trying to find an injector.

Bring on summer 2020!

ya, twins. I'm very curious. It looks like your port side has black between the purple and teal accent stripes, but your starboard side doesn't (like mine). I'm also curious about the ski nautique graphic on a sport.

The Dude wrote: Beretta, nice boat. I have no idea about most of this stuff you're talking about but my boat is a whole lot like yours. No issues w protec ignition so far. Not fuel injected. Good luck

Our boats are twins! Nice

Beretta, nice boat. I have no idea about most of this stuff you're talking about but my boat is a whole lot like yours. No issues w protec ignition so far. Not fuel injected. Good luck

Best of luck to you. I hope you are wildly successful in bringing the patient back from the dead.

JQ

While Tim is technically correct I doubt there is really much difference between a GM using a Holley and an electric pump and a Ford using a Holley and a mechanical pump. Isnt a GM mechanical in the block as opposed to a Ford in the timing cover? I'm thinking GM changed the casting and or machining and the mechanical pump boss is gone requiring a different pump
Here is a snip of the PCM GM page-

It is a marine rated low pressure pump and in its current use is only used as a transfer pump- I’d try it. Thought there were some PCM engines that used it from the factory with carbs but don’t have the parts book handy

Also... any idea if the spark arrestor from the Tbi will work? Or where should I be looking for one?

Thanks 2001sunsport for the heads up!

Well we've got terrible news.

My one injector is dead.

Anyone have a 250R-123AA kicking around??? lol.

If we can't source one on the forum.... I guess I'll do the retrofit to a quick fuel.

Off I go to the parts wanted section!

Here's the throttle blade kit just in case, Holley 26-97. Haven't found the paperwork for the gasket/ regulator kit yet.
https://www.holley.com/products/fuel_systems/carburetor_components/throttle_body_kits_and_service_components/parts/26-97