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Blower Options & Longevity Questions

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Old 02-21-2003, 01:27 PM
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Default Blower Options & Longevity Questions

I want to tap the OSO brain pool: I am looking to possibly install blowers (pro-charger, whipples, etc.) on my 35í w/502ís. But my concern is that I donít want to shorten the engine life or more importantly loose the dependability. Any comments from experiences in the field will be appreciated.
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Old 02-21-2003, 01:38 PM
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I put B&M 250's on my last boat and had no problems at all. I had about 75 hours on the 454 mags when I did the install. I put more than 100 hours on the engines with blowers before I sold it. I haven't heard from the guy that bought the boat, so I assume it ran fine.

How many hours are on your engines? If you already have a lot of hours, it may cause problems, if you don't freshen the engines.
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Old 02-21-2003, 03:50 PM
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put em on every day !! Need all info on motors like 388 said above to get close ,but noone can tell you for sure you may have a part that can stand the load now but add nos or a blower and BANG! But if the motor is low time and you get a good ,Whipple Kit and leave it at 6lbs it should do great ,Ambusher has some on sale ??
 
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Old 02-23-2003, 09:30 AM
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388, I have just under 100 hours on the motors... I guess I have to weigh out the options of either spending money on the retro for a blower to my motors, or just keep putting money aside and stepping up to the new 525s.
But any other thoughts are greatly appreciated, Thanks.
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Old 02-23-2003, 10:31 AM
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My 502 had a 250 blower installed at 50 hrs. Motor ran for another 350 hrs with absolutely no problem. Many times spinning 5800rpm. 5# boost. Motor was not 'blower' built. Intake removed, blower bolted on. Done. Stay conservative on the boost for turn key reliability.
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Old 02-23-2003, 10:49 AM
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Default Whipple

Go for the Whipple!

Rumor has it that they are having a sale on all remaining side mounted superchargers, because they are going with the new top-mounted supercharger.

Stay conservative with the boost (6 pounds), and your engine will last a long time.

However, the outdrive is another issue...
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Old 02-24-2003, 04:14 PM
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358 - In my opinion, you SHOULD be ok with less than 100 hours on your engines. I would do it in a heartbeat. I also agree with Bobby and Clay, I wouldn't run more than 6 lbs. boost on stock engines. There is always a risk, but I have seen it done more successfully than not.

Make sure you talk to someone before you actually run the blowers. You have to keep a close eye on your fuel pressure.

I would also recommend a dual carb set-up. (if you run carbs) You can run one large carb, but I have seen a few problems with them. Again, in my opinion, the dual carbs would be safer...

You will need to make a few other minor changes to your boat. (cooling system, fuel pumps, plugs, props, etc)

Well worth the $$$.

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Old 02-24-2003, 04:25 PM
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AMBUSHER ON BOARD HAS A HECK OF A DEAL ON WHIPPLES ,you should p.m. him I have several people who have bought from him

the whipple 502 will destroy the 525's and at 6 lns last if motors are taken care of
 
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Old 02-24-2003, 08:00 PM
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Alright, so I see that conservative boost is the answer for engine life, so how about the manufacturer? Whipple, ProCharger, etc...
And how about numbers, I'm running a 358 sonic w/502mpi turning 70 on the button.
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