SoCal Jet Boats

Discussion => The No Wake Zone => Topic started by: swtd 80 on August 25, 2008, 09:21:14 PM

Title: borla heddars
Post by: swtd 80 on August 25, 2008, 09:21:14 PM
Anyone running  borla stainless exhaust  with  big round mufflers for b.b. chevy ? Any advantage to power ? how about noise levels compared to bassetts with or without inserts ? any advantage  when racing 1320 ? any photos out thier because they look kool.
Title: Re: borla heddars
Post by: GT Jets on August 25, 2008, 09:37:30 PM
The Borla mufflers were born out of sound restriction necessity, they are good for about a 6-7 db reduction in noise level and are said to not "rob" any HP, on the race boat "Rockdodger" we ran Shotguns and they were only good for a 2-4 db reduction in noise and cost a bunch of dough (ours cost $600).

The reason was that the river marathon races instituted noise level restrictions and those that did not comply got 1 minute added to each leg of the race they did not comply, harsh, very harsh.  These guys were completing a 38 mile leg in just over 20 min., the new number to beat is 18:22, thats minutes :screwy:

These mufflers sound extremely cool attached to crossover headers (AKA 180* headers.)
Title: Re: borla heddars
Post by: 2savage4you on August 26, 2008, 06:20:38 AM
Anyone running  borla stainless exhaust  with  big round mufflers for b.b. chevy ? Any advantage to power ? how about noise levels compared to bassetts with or without inserts ? any advantage  when racing 1320 ? any photos out thier because they look kool.

This belongs to hotrod56cars from P.B.  ;D
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi223.photobucket.com%2Falbums%2Fdd269%2F2savage4you%2FDSCF1506.jpg&hash=bc7123fa6f0cc6896c7554e467ae576ba204fccf)

Title: Re: borla heddars
Post by: jrork on August 27, 2008, 07:46:25 AM
There's a large contingent of folks running Borlas up here due to the noise issues. Most are blower boats.  I've yet to hear them run but will have lots of opportunity this coming weekend and will post up my thoughts.

For what it's worth, my Bassetts with the baffles are terribly loud.  I too am looking for a solution to the noise.
Title: Re: borla heddars
Post by: swtd 80 on August 27, 2008, 08:38:02 AM
cant wait for your response racing junk has several pairs for sale reasonable. plus i think they look bitchen if they fit my boat!
Title: Re: borla heddars
Post by: HDriderTH on August 27, 2008, 09:04:48 AM
I think Rods are copies, says they're loud as fuc. Said people hear him above all other boats, can hear him comming WAY down the river.
Title: Re: borla heddars
Post by: AA/Paul on August 27, 2008, 09:13:20 AM
Top self stuff!!!!
They do an excellent job of silensing noise. Alot of the drag cars guys up here use them. No personal exp. . Everyone I talked with is very happy with them, even with the $ they cost.
Title: Re: borla heddars
Post by: jrork on August 27, 2008, 07:09:27 PM
Here's some to wet your appetite. I thought I had some better shots but I guess not. Regardless, I should have ample opportunity this weekend.

(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi63.photobucket.com%2Falbums%2Fh157%2Fjrork%2FIMG_1790-1.jpg&hash=34002d7d9fc5c701f741a1d48641cdb632c5aed3)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi63.photobucket.com%2Falbums%2Fh157%2Fjrork%2FIMG_1823.jpg&hash=77f5e6cd728e2af9e95a8f04d338fad79184bb04)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi63.photobucket.com%2Falbums%2Fh157%2Fjrork%2FIMG_1842.jpg&hash=6d1aa06dc8a75089350ba900f2d5afa6265a3c24)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi63.photobucket.com%2Falbums%2Fh157%2Fjrork%2FIMG_1821.jpg&hash=5a4fcdf59fba0b2869da53348e1cfc60c771235c)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi63.photobucket.com%2Falbums%2Fh157%2Fjrork%2FIMG_1844.jpg&hash=70c6d2b76bca4e08ffa24d08839ecb5a9c2f77d0)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi63.photobucket.com%2Falbums%2Fh157%2Fjrork%2FIMG_1845.jpg&hash=a5c9c92c87f7a53ac90953ed3cae222a28cdda09)
Title: Re: borla heddars
Post by: HDriderTH on August 27, 2008, 07:27:04 PM
I dunno, I'm diggin the Hilborn scoops....time for a change.  PO PO fucn w/ me about mine now
Title: Re: borla heddars
Post by: jrork on August 28, 2008, 09:30:47 AM
PO PO fucn w/ me about mine now

Seems to be a reoccuring trend everywhere.
Title: Re: borla heddars
Post by: HDriderTH on August 28, 2008, 09:49:52 AM
Seems to be a reoccuring trend everywhere.



Oh yea, we're just foating eating grapes and Oppy Taylor comes over and proceeds to tell me all about my boat, marine starters, alternators, back fires Etc Etc. I wasnt EVEN goiong to try and explain the pop off valve.
Title: Re: borla heddars
Post by: jrork on September 06, 2008, 09:45:53 AM
Well, I got to hear a number of these things this last weekend.  At idle they are very quiet with a nice rumble. Don't know if they'd still pass the sound check but they are much more pleasing to the ear.
Once you stand on it they bark like a monster!  Very loud and cool sounding but certainly not any quieter than a set of Bassetts with Baffles run dry and way louder than a set of Bassetts, Baffles and water.
Title: Re: borla heddars
Post by: GlassCutter on September 06, 2008, 12:13:31 PM
Jrork -- what are all those braided line to the jet in the 2nd to the last pic u just posted?
Title: Re: borla heddars
Post by: The Chaz on September 06, 2008, 12:53:16 PM
I'm going to guess they are for pressure gauges, I saw one a jet like that before.  But I could be wrong as I am illiterate when it come to the pump.
Title: Re: borla heddars
Post by: jrork on September 06, 2008, 01:51:14 PM
Yup, Tommys boat is a beast!  Alcohol burning blown and injected 19 footer.  Those are all pressure taps so he can track the pressures (which I know nuthing about)
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