Cam help for an x-575 SCI
 

My motor is originally a 575 SCI with 70 Hrs. with superchiller. The 256 Blower is locked up and destroyed. Took the blower and manifold off and the #6 intake lobe on the cam is wiped out, and the other lobes aren't great either. Bottom end is good shape. Plan is new 8:71 blower and whipple chiller manifold. New head gaskets
etc. Fuel system is original Aeromotive and has MSD box with 5600 RPM limiter. Plan to keep throttle bodies. Need hyd. roller Cam recommendation. Boat weighs 4600 Lbs. and is single engine

first post,welcome aboard,bob midera can help you with a cam.i have a nice bds 8.71 and a nice littlefield standard deck compititiom manifold forsale.pm me if you are interested.

Welcome and sorry to hear about the troubles. I have a fresh 575 blower and freshwatersuperchiller setup with studs that will bolt on. Also small and standard pulleys with ASM ECM for the 575. Blower has new rotors and teflon wipers, all done by DMP. These were spares for my last boat. PM me for pictures and more info if interested.

Hey Mike, How bout a couple of those blower motors for the KY. run this summer!!!!!:ernaehrung004: ha ha ha Just wanted to say HAY ! But seriuos I need some hyd. roller lifters and a set of 1.7 gold cranes.....let me know Rob

Call Dean Gellner 216-398-8500

He supplied me a set of the custom cams he
uses on his 575 builds.....they work well:drink:

Thanks for the replies. This site is pretty cool and very informative. I have a TBS 8:71 and Whipple at TBS shop. This is a nice replacement set up for the factory 256 and superchiller. Plus it's 3/4 inch shorter in overall height. I'll call D. Gellner about the cam. Anybody used Bullet cams before? I was looking at a 240/244 @.050 with .601 lift. The duration is close to stock. Worst thing for me is to big cam.

What are the specs for the cams he supplied you?

He had Isky make them, it wasn't a common
# of theirs.

As I recall, it was similar to a 525EFI cam, spec wise
but not exact.

Call Dean, he'll know the specific's.

He's a good guy..... treated me right,
plus, you'll need the ECM's re-flashed, and
he can handle that too.

So sorta like a Crane 741 with a 114....

If you can get it a 741 is pretty decent or step up to the 651 as far as shelf cams go!

Bullet cams
 

I just orderd a cam from Bullet from my 502. They set me up with a 224/232 @ .050 with a .600 lift at 114. This was set up for a Procharger @ 7psi. They were very helpful and seemed to know there stuff. I wanted easy to handle at the dock and no water reverson issues.

I took the heads off today and found that 5 of 8 cylinders are grooved pretty bad from the blower locking up. So i'm starting from scratch. With my 8:71 blower and whipple intercooler intake, will my stock 575 SCI throttle bodies will be to small?

575sci cam
 

I have a Nordic 28 heat with a 575sci. I took it to Eric at EB Marine in Nashville after talking to several people on the lake. He went through the motor installed his custom grind cam, 6lbs of boost roller lifters etc. He welded in a O2 sensor in my exhaust and reprogrammed my computer on the lake. The boat runs better than it ever has. I can't say enough about the guy. He is a very honest, capable, and affordable guy. Give him a call @ 615-714-2944. The came he put in my motor is a Predator 236/244 612/629 lobe seperation is 114

Thanks, did he you use your stock throttle bodies? Why did he put an O2 sensor in? To keep it from running lean at high RPM?