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-   -   Savage - Blower clearance???? (https://www.offshoreonly.com/forums/active-thunder/305313-savage-blower-clearance.html)

drivrswntd 11-13-2013 07:57 AM

Savage - Blower clearance????
 
I'm trying to decide what to do with the motor for this boat. I decided I am going to sell my Outlaw as a complete running boat. That leaves me with an HP500 that dropped a valve to rebuild. I am currently leaning toward doing a 509 with an 8-71 blower on it and shooting at 750-800hp. Who else has put a blower on one of these? What type of clearance do I need to create on the back of the rear seat and at the top of the engine hatch? Any pictures would be greatly appreciated!!!! Thanks

abmotorman 11-13-2013 10:27 AM

Irony that you ask this question. Just last night I was looking at my hatch also the see if this is possible. Looks like the seat / headrest will need to be reconfigured for a roots style blower. If one were to use a centrifugal type this would not be in issue.

Drock78 11-13-2013 11:27 AM

8-71 is fairly tall..plus add carb and filter on top of that. You would pry have to go to a scoop on your hatch. I would build up a strong NA 540 and call it good.

drivrswntd 11-13-2013 03:27 PM


Originally Posted by Drock78 (Post 4026272)
8-71 is fairly tall..plus add carb and filter on top of that. You would pry have to go to a scoop on your hatch. I would build up a strong NA 540 and call it good.

Ohh come on now, sounds like the glass is half empty approach. Has anyone done a roots style blower on one of these before? I'm shooting for a solid 750hp. That should put me in the mid to upper 80's based on what i've seen searching.

Drock78 11-14-2013 04:52 PM

not half empty...but with the way the hatch support is built you may have issues with blower pulley clearance in the front. I have only seen 1 with a procharger on it and that is a side entry 502 intake and one guy on here has a whipple if I remember correctly. The whipple is lower profile and the pulley doesn't stick out as far. I saw a 25 Tantrum with a roots blower..it was a B&M 250 and they had to reconstruct the hatch for it to clear.

750 hp might get you 85 tops. theres a guy on here with 815hp and 800 tq and hes running 87-88 i think in a 99 Savage.

Gladhe8er 11-14-2013 05:51 PM

I think OCDs 99 savage ran 87 with a pro charged hp500. I think it was about 700 hp.

drivrswntd 11-14-2013 08:29 PM

Well I was definitly under the engine hatch tonight with it completely closed taking measurements. I need to talk to blower shop and see what kind of heights we are talking here. I see what your saying about the center support. It takes about 2 1/2" away from available height on the inside. Bilge is pretty roomy when your in there with it closed LOL

mgh 11-14-2013 08:41 PM

A procharger M4 will make it run real nice

fatherb68 11-14-2013 09:40 PM

I had a 8-71 on my tantrum. I'm not sure if its the same size as your savage. I had to cut a little bit of the top of the fire wall where the hatch sits. I also put a small access hole behind the rear seat where the upper pulley is. Then I made a Custom hatch scoop and had the cushion redone. It's a little bit of work but well worth it. If you need a 8-71 I have one available. Intake to air cleaner,with a chiller.I also have a tantrum for sale if you want one of those also. I will try to post some pics. I'm a little slow with technology.

Unlimited jd 11-15-2013 07:30 AM

I have 8-71's and intakes at the shop, could drop a mock up motor in with the blower to check.
But for your style of boating I highly reccommend building a n/a 540 out of your hp500. Remember that xr drive is not bulletproof. Stop by or call before you buy anything. Can save you some $$$ before you go crazy.


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