Author	[Modern View]
C Elliott 01-16-2013 07:00:39 162.84.93.99 Report to Moderator	I know this all depends on sleigh design and track conditions but I am curious as to what you guys think would be adequate horsepower to pull 6 mph at 5000 lbs with 18.4 x 38 top cut tires. Would 150 hp be enough? Thanks [Reply]   [No Email]
Gold Digger 01-16-2013 17:16:04 74.123.78.172 Report to Moderator	Re: Estimated H.P. required in reply to C Elliott, 01-16-2013 07:00:39   You must be talking about 4 and 6 cylinders. I need to see videos of 2cylinders at that weight and speed that will finish in the top 1 or 2 most of the time. Thanks. Stephen [Reply]  [No Email]
C Elliott 01-16-2013 17:30:57 70.105.50.57 Report to Moderator	Re: Estimated H.P. required in reply to Gold Digger, 01-16-2013 17:16:04   Continental 4 cylinder, 4.75" bore x 7" stroke. I was told the engine was on a dyno and showed 147 hp after extensive head and manifold work. Engine was built by Lemmons. [Reply]  [No Email]
Mopower 01-17-2013 16:45:30 64.208.152.151 Report to Moderator	Re: Estimated H.P. required in reply to C Elliott, 01-16-2013 17:30:57   From what I've seen, head and manifold work are the key to getting those Masseys to run. [Reply]  [No Email]
brentp4455 01-17-2013 13:58:45 70.199.102.96 Report to Moderator	Re: Estimated H.P. required in reply to C Elliott, 01-16-2013 17:30:57   should be big enough. just make sure theres enough carberator for it. thats where a lot of builders seem to fall short. also another .25" of stroke wouldnt hurt. [Reply]  [No Email]
Dave Thompson jr 01-16-2013 10:09:01 64.184.126.173 Report to Moderator	Re: Estimated H.P. required in reply to C Elliott, 01-16-2013 07:00:39   My Farmall is not much over 150 hp and I can run 6mph with full cut 18.4 tires in that weight class. I would think that that would be plenty of power for what you are planning on doing. [Reply]  [No Email]
Mopower 01-16-2013 08:19:52 64.208.152.151 Report to Moderator	Re: Estimated H.P. required in reply to C Elliott, 01-16-2013 07:00:39   I run 100 horsepower in 5500# at 4&5mph on bigger 16.9X38. It's just a bit weak if you ask me. I place consistently, but it's on a pretty easy going sled with a 5-6ft chain. I'd be happy and back in 3rd gear territory with 125 hp. With 18.4, tough sled, short chain, 5000#, and 6mph, 150 would be quite comfortable. [Reply]  [No Email]
bobidan 01-16-2013 07:52:34 128.177.13.130 Report to Moderator	Re: Estimated H.P. required in reply to C Elliott, 01-16-2013 07:00:39   i would think that would be enough on any track [Reply]  [No Email]