Can you give me the contact person and number for who did your motors? Thanks for the info. Russ

Mike D'Anniballe at Sterling Performance.
54220 Pontiac Trail
Milford, Michigan 48381
248-684-5040

Please mention that I referred you and let me know if I can assist you in any way.

Chris

419-882-1680

Chris, thanks a lot. I will give him a call, and yourself as well. Russ

I'd think you should get a bit better than 80. My 357 with two 540hp 454s and TRS does 76. Bob's 357 with 650s is supposed to do 83. Just my guess. Let us know what happens. That'll be one bad 311.

I have a '87 311 with 420 Mags with B&M superchargers. I haven't GPS'd it yet, but I am probably hitting somewhere in the mid-80's. My friend has a 382 that GPS's at 76 mph, and I literally blow past him. The speedometer seems reasonably accurate up til 75 mph against my friends 382, and I can bring the needle on the speedo around to about 7 o'clock when flat out.

I actually need some new props, as I am turning about 5600 RPM. I just got the boat last year, so it definitely needs some tweaks. Right now I have 25 pitch Mirages that have been cupped.

Actually, I just quickly looked around here, and it seems that some people have modified their silent thunder platform for better flow. I have to take mine off as the gasket is leaking exhaust, and I am interested if anyone could make some recommendations and had some pictures of what they have done.
Thanks!

Jaybird,
Welcome aboard!! We've discussed this topic almost to death in the past. Do a little search in this forum and you'll find gobs of info on silent thunder platforms from new gaskets to total board rebuilds (I know, I did one:mad: )

I've had the board off my 242 and my 311. Not much we don't know about silent thunder boards,,,,, unfortunately:(

Good luck, it's not that bad of a job.

A friend had a '93 336 with 525's. Changed pulleys and it ran 82 on radar. Stock x dim on Bravos and Mirages right out of the box.

A Vegas guy had a 311 with stellings boxes with twin 980hp blower motors. Claimed he saw a true 100 with it, but it wasn't very rewarding. Somewhere I got a list of specs and pix of it.

These hulls need a little truing, but are good hulls. i have no doubt that with a raised x, boxes, and massaged props that they'll run even better. If I ever get the time, I'll prove it.

As it is, I just have a huge warehouse full of parts to make it happen - and no time to mess with it.

What do you mean by a warehouse full of parts? What are you planning on doing? Thanks....

Oh, not as in retail or store warehouse. I have two 40' semi-trailers full of my junk. I have a 34' enclosed trailer that houses one or two projects worth of junk at any given time. I have a 14x30 rented storage building full of junk. I have a 14 x 40 storage bay in a storage barn full of stuff. I have half of the "attic" of a bike shop full of my junk, and a third of a storage warehouse with bike,car,ski, and boat parts in it.

My extension boxes, superchargers, ignition systems, XR drives, gauges, carbs, intakes, valve covers (and spacers), cams, rockers, springs, lifters, gasket sets, valves, crossovers, stud girdles, pushrods, valley pans, oil pumps, torque plates, windage screens, fluidamprs, timing covers, cam buttons, CMI headers, offshore mounts, knock sensors, and a bunch of other junk is all crammed in the corner of the warehouse.

What am I planning on doing?

Going 95 in a 311, what else?
Just gotta set aside 3 months to do it.

Man does that ever sound cool! What kind of power you planning on to get to that speed? Also, do you think by going to IMCO 2" shorter lower cases would help? I am strongly considering that also, and could you do it without extension boxes? Trying to pick your brain as to ideas because it sounds like you've got a good idea going. Thanks...R