Can a carb engine have blower surge or only injected engines?
 

Saw I bit on utube it explained blower surge was caused by the injector hat butterflies being sucked closed and opening and cycling. Thanks for any info RM

[QUOTE=iliveonanisland;4843101]Saw I bit on utube it explained blower surge was caused by the injector hat butterflies being sucked closed and opening and cycling. Thanks for any info RM[/QUOTEam



This area of expertise is outside of my skill set, but this thread was very informative regarding blower surge (1);

and that Skater named Sorcerer with the Race Crafter engines, and had that bower surge from the videos years ago (2).

I am not fan of blower surge at all.

1 https://www.performanceboats.com/thr...r-surge.48868/

2

Blower surge is the product of a poorly tuned engine carb or EFI............:party-smiley-004:

F2,

So, what causes it? Genuine question....

Thanks. Brad.
(937)545-8991

Carbs tuned rich at idle = Blower surge

Yeah, but that blower wine sounds so bad azz!!

Isn't the Blower surge Button vid ICDEDPPL's?

+1 on the bad tune but it is sooooo cool to hear on big mills! (Dan had the answer to cover both worlds with "the button")

yes. Post #2’s vid.

Rod was way ahead of the game in the early 2000s making BIG Hp

Before I went EFI...the best my boat would ever run with big carbs it would surge when coming out of gear...surge 2 or 3 good ones then level out...had to time the shifting with the surge or else it would die every time and that makes it a lot less cool hahaha after going EFI and finding a proper tuner, no surge at all, shifts great, and the back of my boat isn't black anymore after running. Surge sounds cool but I'll take a clean transom and easy shifts/docking anyday!!!

Stewart

I like the sound of it, but i don't think I'd like to actually have a car/boat with it! :D
From what i've been told, basically the tuning is off on the engine and the motor is cycling from rich to lean.
On a carb application ive been told its cause the carb has not been boost referenced and its screwing with the power valve.

Power Valves don't open at idle , and Rod's motors back in the day at Pro Tech Dyno Shop were definitely B@@ST reference 3 circuit

I added timing with the "button" ....that adds rpm , Holley sees that and closes the IAC/drops timing .... rpm falls too low, Holley tries to get back to commanded idle rpm opens IAC and adds timing , over shoots ... and repeat .
you can see timing and iac counts in the vid. (yellow is timing and to the left is IAC count.)

Sounds BADA$$ Brutha :ernaehrung004:

Annoying as Hell, kinda like Harley guys sitting next to you at a stop light continually crackin the throttle.

Tommy,

Opinions vary.....

Thanks. Brad.
(937)545-8991

I Love the sound of a healthy V8 but that Rev and die not so much and to me most Harleys sound like a lawn tractor with a bad muffler , reminds me of the kids who put Cherry bombs on his grandmas 6cylinder Nova and thought it was Badazz

I'm a little touchy as I have some mouthy little fatherless bastard neighbor kid continually revving up his turbo Subaru at all hours of the day. Damn thing sounds like a 4 cylinder with 2of the plug wires switched .