ubet28

I am kicking around the idea of a blower for my carded 500. I am not sure what would be the best way to go.

I would like to get something that is gonna put between 650 and 750 hp i am planning on adding a set of brodix bb2 heads and i will be running the Cr 741 cam also emi exhaust.

As for the cost i just want it done write and want the best blower for my motor i am thinking about a tbs 250 from the blower shop since i wont have to have the hatch scoop. I am open to what ever just want to do it right the first time.

The boat is a 1998 25 outlaw carbed 500 fresh rebuild, motor is still out of the boat.

Also what prop should i be watching for or thinking about? I was thinking mirage plus 27p

Griff

You'll definately need a 4 blade, probably a Bravo in the 28-30 range.

ubet28

Should i replace the stock pistons and if so what would be the best bet for what i want to do.

ubet28

bump anyone

Griff

The stock pistons will work fine. Some JE's would be better.

I guess it all depends. Are you doing a full rebuild?????? If you are replace them, if not, leave them.

ubet28

Ok thanks

bob_t

couple of my friends have 500's with B&M 250 blowers on them (I think that is the blower model, but could be wrong). The one's that have that setup with only 1 large (CFM) carb seem to have issues with getting them to idle. A couple of them have 2 smaller carbs on top and those seem to idle much better. I guess with only one large carb, the air velocity is too low and doesn't give very good signal for idle circuit.

ubet28

Thanks Does anyone else have comments about the carb . The blower i am looking at is the 250 from blower shop with a holey dom 1050. and a aero 1000.

HotPursuit

You can make it work with the single 1050.Im thinking two smaller would be to much carb with a 250. The idle circuit has to be played with ,air bleeds.Most forget about air bleeds and only adjust the idle enrichment screaws.If your past 1.5-2 turms out the air bleeds are incorrect. A larger air bleed will give you a leaner mix while a smaller gives you a richer mix. This is the opposite of fuel jets. I would recommend
EGT gauges and depending on what pistons your run you can adjust idle and top end.Lean conditions happen real fast with a supercharged engine.Be careful!!

Griff

My 1050 idled just fine on my warmed over 525SC. It did take some adjustments of the air bleeds a few times to get it just right. The aeromotive 1000 is probably overkill, but will work. Just make sure to wire it with an oil psi cut off switch.