SoCal Jet Boats

Discussion => Boat Showcase => Topic started by: Factory502 on September 04, 2007, 03:13:41 PM

Title: Blower motor
Post by: Factory502 on September 04, 2007, 03:13:41 PM
Random- but I thought this was kind of cool- Bordem at it's finest

http://www.youtube.com/watch?v=223WmNe_t6A&mode=related&search=

http://www.youtube.com/watch?v=tXjscapzPQI&mode=related&search=
Title: Re: Blower motor
Post by: beerjet on September 04, 2007, 04:43:26 PM
Nothing like dialing it in with a coors light in one hand  ::)

-beerjet-
Title: Re: Blower motor
Post by: lilrick on September 04, 2007, 11:48:48 PM
that ones been around for a while!
Title: Re: Blower motor
Post by: flytime on September 05, 2007, 09:36:33 PM
That sound NEVER gets old
Title: Re: Blower motor
Post by: UNDONE on September 06, 2007, 10:33:53 AM
Blower surge on a carbed engine = poor tuning. The only real reason you should be surging with a carb is to save your transmission/outdrive etc with mega horsepower when putting it in gear. At least that's how it's been explained to me by some very reputable engine builders.
Title: Re: Blower motor
Post by: HDriderTH on September 06, 2007, 05:11:54 PM
Well..........I was told the surge was an indication of being rich where you want to be w/ the blown motors..and most of 'em do it, so wut up?
Title: Re: Blower motor
Post by: beerjet on September 06, 2007, 05:22:58 PM
Well..........I was told the surge was an indication of being rich where you want to be w/ the blown motors..and most of 'em do it, so wut up?
I heard the same . A blower motor on the lean side will definatly detonate and burn a hole in the pistons . Next thing you know Rods scratching his head wondering what the fuk happened . Running a blower motor on the rich side also helps cool the intake charge .

-beerjet-
Title: Re: Blower motor
Post by: HDriderTH on September 06, 2007, 05:36:26 PM
I'll letcha know inna few days, mines ready to fire up. I'll try to get it videoed whem i start and tune it. And yea, i've heard to drop it in gear on the low side of the lope but then again i've heard the lope is between 800-1500 RPMs
Title: Re: Blower motor
Post by: UNDONE on September 07, 2007, 05:41:01 AM
Surging is actually caused by the engine burning up the small amount of fuel being pissed in at idle. As it burns up this fuel the blower forces more vacuum and the carb has no choice but to let fuel through the annular boosters. So no, blower surge is caused because the blower is forcing a rich-lean-rich-lean situation not because the carb tuning is rich. There are fouled plugs, then there are blower surge fouled plugs... I'm not an engine builder by any means, I'm definitely just an assembler... How often do you see a professionally built/tuned engine that's not a blown alcohol injection motor surging?

Example, my buddy's boat (http://vids.myspace.com/index.cfm?fuseaction=vids.individual&VideoID=9115630) before tuning the carb. Sounds bitchin, but it's really a sign of poor tuning. Or maybe some people just like the sound.
Title: Re: Blower motor
Post by: HDriderTH on September 08, 2007, 08:52:00 AM
well, we should see today. mine was running smooth and quiet when i took it apart. i've gone up four jet sizes, but thats it. I was just showing color on the plugs so i fattened it up a bit, everything else is exactly the same....
Title: Re: Blower motor
Post by: UNDONE on September 08, 2007, 09:06:49 AM
If you have tuning questions let me know, I'm not an expert by any means. I wouldn't feel comfortable messing with someone elses stuff. But I can put you in contact with a couple professionals who are willing to share some knowledge.
Title: Re: Blower motor
Post by: HDriderTH on September 08, 2007, 09:19:36 AM
I'm gonna try to video the fireup today, post it later...
Title: Re: Blower motor
Post by: UNDONE on September 08, 2007, 09:22:09 AM
sweet, looking forward to it. There's nothing like the sound of a blown big block...
Title: Re: Blower motor
Post by: HDriderTH on September 08, 2007, 10:45:18 AM
If you have tuning questions let me know, I'm not an expert by any means. I wouldn't feel comfortable messing with someone elses stuff. But I can put you in contact with a couple professionals who are willing to share some knowledge.

Sh*t, where were you when i got this thing wondering why my plugs were at .018 an stuff
Title: Re: Blower motor
Post by: UNDONE on September 08, 2007, 12:32:03 PM
Sent you a PM. John is pretty good.
Title: Re: Blower motor
Post by: HDriderTH on September 08, 2007, 11:12:02 PM
OK, here we go.....

http://youtube.com/watch?v=mWTq7FZNC-Q

Title: Re: Blower motor
Post by: Brad @ SCJB on September 08, 2007, 11:19:06 PM
niiiiice  ;D

glad to see that its running again
Title: Re: Blower motor
Post by: HDriderTH on September 08, 2007, 11:25:39 PM
Took care of a lotta details while she was apart. Still flooding the exhaust with the Bassett tee in it, gotta put a contriol valve on it too.
Title: Re: Blower motor
Post by: jet boat performance on September 09, 2007, 08:41:27 AM
Ok so can I contribute too This is a motor Josh built for my neighbor and (buddy) Hondo Hal a couple season back ,on this day everyone fired thier motors in the cove @ 7;00 pm as a tribute to a "freind who passed"
listen also to the background noise in the canyon Tom
http://www.youtube.com/watch?v=8OGn2CK8dOo

And then theres the cruiser (destined for a fresh motor and bigger blower this month)... and yeah I always forget to turn the Cam off lol
(http://i147.photobucket.com/albums/r319/jetboatperformance/th_082206038.jpg) (http://s147.photobucket.com/albums/r319/jetboatperformance/?action=view&current=082206038.flv)
Title: Re: Blower motor
Post by: UNDONE on September 10, 2007, 09:15:45 AM
That "Hondo Hal" video definitely gives true meaning to the term American Muscle. Poor Germans think they do it right...
Title: Re: Blower motor
Post by: jet boat performance on September 11, 2007, 09:03:27 PM
thanks undone  Mr Heinaman (Hal) will get a kick out of that :} Tom
Title: Re: Blower motor
Post by: UNDONE on September 12, 2007, 09:28:30 AM
haha, just speaking the truth brother. In fact, it's almost the word of the Lord. lol
Title: Re: Blower motor
Post by: pw_Tony on September 13, 2007, 03:17:15 PM
Here's some good info about the surge

http://www.hotboat.com/forums/showthread.php?t=161430
Title: Re: Blower motor
Post by: UNDONE on September 13, 2007, 05:14:20 PM
Call this guy. He's making 2.76 HP Per CI out of an NHRA Pro-Stocker.

His name is Erik. He's freaking good. You want a real answer, here's your contact for a professional answer.

http://www.cforacingengines.com/



Title: Re: Blower motor
Post by: Factory502 on September 13, 2007, 05:49:27 PM
Sorry to sound like a total novice, but will the surge of a carburated blown motor hurt the motor??  Between the surge and the whine of the belt- those are the 3 biggest reasons for me to buy a blower- and I guess the HP is cool too O0
Title: Re: Blower motor
Post by: HDriderTH on September 13, 2007, 07:35:30 PM
Here's some good info about the surge

http://www.hotboat.com/forums/showthread.php?t=161430

T/Y   ;)
Title: Re: Blower motor
Post by: UNDONE on September 14, 2007, 07:06:09 AM
Here's some good info about the surge

http://www.hotboat.com/forums/showthread.php?t=161430

That's essentially a repeat of this thread. Seriously, call Erik if you want a straight answer. The one guy who knew what he was talking about (Timinator) was not a fan of surge, but he didn't go into detail about why...
Title: Re: Blower motor
Post by: HDriderTH on September 14, 2007, 08:00:29 PM
Well boys, check this out

http://www.youtube.com/watch?v=ufK3kyQK4pE&NR=1
Title: Re: Blower motor
Post by: jet boat performance on September 15, 2007, 08:33:41 AM
Well boys, check this out

http://www.youtube.com/watch?v=ufK3kyQK4pE&NR=1

NICE !!!! Tom   8)
Title: Re: Blower motor
Post by: HDriderTH on September 15, 2007, 09:32:32 AM
yea....i think they have a problem
Title: Re: Blower motor
Post by: 82daytona on September 22, 2007, 02:19:42 PM
i think that guys name is Willis,Jim Brock now works on that boat,i saw it one time at Jims shop that thing is no joke  :o
Title: Re: Blower motor
Post by: UNDONE on September 24, 2007, 04:49:31 PM
That is no joke at all. Sounds like a car gnarly car alarm going off in the video...
Title: Re: Blower motor
Post by: Ralph Brunt on September 24, 2007, 05:37:16 PM
yup thats willis, talked to him out at ming and he dropped a cyl. you should see the size of the crank pulley :o. and yes jim does work on that boat as well as others ;)
Title: Re: Blower motor
Post by: HDriderTH on September 24, 2007, 06:09:41 PM
....met him at Avi
Title: Re: Blower motor
Post by: Ralph Brunt on September 24, 2007, 06:26:38 PM
....met him at Avi
yeah and his lake boat aint no joke either
Title: Re: Blower motor
Post by: Constant840 on February 20, 2008, 12:43:56 PM
Blower surge on a carbed engine = poor tuning. The only real reason you should be surging with a carb is to save your transmission/outdrive etc with mega horsepower when putting it in gear. At least that's how it's been explained to me by some very reputable engine builders.

I actually took the video in the first posts. I checked on you tube the other day and was amazed at how many views it had!
This motor was built and tuned by George at Clay Smith for my father in law. It is now in a Daytona seeing low 90's with no problems... still surging. I have heard mixed opinions on this and will continue to trust the builder.
Title: Re: Blower motor
Post by: AA/Paul on February 22, 2008, 12:56:32 PM
On a blown injected gas motor,alky is different, some surge is normal. I've only done 1 blown injected gas set-up. The injection pump,unless it's overdriven, spins at 1/2 motor soeed. Even running the idle check valve at a higher presure only helps so much.The barrel valve has to be on the rich side for any type of snappy response. There is no accelerator pump!. In the vid you can see him blip the throttle. It's snappy. Good to go. Alway go rich in the tune up. Then back it down. Hope that helps.
Blower with carbs....no clue.
Title: Re: Blower motor
Post by: Toes on the Nose on February 24, 2008, 08:16:23 PM
I'm not a gynecologist........ but I'll take a look!!