Why not buy the performance pack from CDI electronics part No. 213-2138. These are limited to 8,000 RPM. Available through E-Bay.
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Why not buy the performance pack from CDI electronics part No. 213-2138. These are limited to 8,000 RPM. Available through E-Bay.
Ran Leaded and unleaded Av Gas 100 octane. This motor was the 56ci bridge port finger ported block with the Mod 50 straight front and 1 in dual throat carbies and the flex flywheel. Ran on a 14ft...
Rather than referring to the amount that is taken off, all should be referenced to the standard SST60 head which has a combustion chamber depth of 0.450 in and allowable limits of +or- 0.010. When I...
The hole in the water pipe is to allow water to drop over the water pump so that you do not melt the plastic housing. The guys that run the SST 60's usually run the aluminium water pump housing....
Any updates on how this exhaust performs? Would love to know the difference in performance.
Stephen
920cc with the Mod 50 straight front. A lot of guys here in AU in the 90's ran similar power heads with a great deal of success. I had one on the stock SST60 mid section and nitro gear box. The...
Tim
Started on an exhaust system for the stock 49ci 3 cylinder OMC Stinger based upon the Mod 50 exhaust. Found the information you posted and others very helpful. Parts have been casted and are...
Nice Job. You don't get anywhere by not doing anything and waiting around for others. The secret to performance and success is experimenting, perseverance, determination and never giving up and...
Sounds great but can you do a video on the exhaust side.
Stephen
Hi
Others may disagree but I would say that as you are using 0.015 oversize rings and filing the ring gap that the wear is due to the fact that not all of the outer surface of the rings are touching...
Tim
No it is not the top-outlet open meg system as these would be too noisy for Australia. The exhaust system that would have suited was the one that you sold to Mumat but I will keep the open one...
Yes what the mechanic has discussed is correct. The bottom seals on Crankshafts are either a double seal or two separate seals. One to stop any water entering and one to stop crankcase pressure...
Try replacing the bottom Crankshaft seal and check the adaptor plate and base gasket. If the adapter plate and base gasket are bad, then water can enter and be stored under the crankshaft end cap and...
Camohunter
It all depends on the year of the 2 cylinder. I take it that it is 2 cylinder 50, 55 or 60hp. You will need to change the drive shaft to suit the 4 spine crankshaft or if you have a...
Tim
I live in Australia and know of some guys that would be interested in 6 std and 6 +.030 pistons. I have left a message on another thread but have not had a reply so I will contact him with the...
From experience on a Mono some 20 years ago, the standard SST 60 gear case could not run as high as a nitro with a nose cone with lower water pickups. The lower water pickup allows to run higher and...
Fast Fred
I have a FT parts manual that I could scan and forward to you. Just send me your E-Mail address and once scanned will forward to that address.
Stephen Medaris
Lilwhirlwind
Between the late 1970's to the mid 90's I use to race a Mono of my own design in Australia with the stock 49ci Hustler/Stinger. 49 ci FT19S, 56ci SST 60 and 56 ci finger ported with the...
Powerabout
Got your E-Mail. Regarding the straight in crankcase, I played around a bit with having a pattern taken off the genuine 31M straight front and cutting it to fit a standard 3 cylinder...
Fred
Thanks for the pictures. Standard 3 cylinder, FT/FR and 31M. Do you have any of the FT/FR or 31M ones for sale and if so would you ship to Australia and do you have a purchase price. You may...
Fred.
As per Powerabout do you have a part No. and know of anyone who may have some for sale. Have been told that these are no longer available. The 31M part book shows 568206 being the leaf plate...
Tim. Sorry to see that your project has not been supported but good to see that some has purchased you patterns. I have down loaded your pictures and will commence trying to duplicate your design....
Tim.
Did your sale eventuate as if it did not I am still interested in purchasing your exhaust system?
Stephen Medaris
Tim
Are you still considering this project as I would be interested in purchasing 2 of your racing exhausts for the 49.9 ci OMC? I am in Australia so final $ price would need to include shipping. I...
Hi 75 luva.
So you are located near Brooklyn NSW. I am not far being at Narara just north of Gosford. My first bridge to bridge with the FT 19s in about 1978 or there abouts was completed in a time...
Hi 75luva.
Good that you are from sydney as this brings another 850cc mono to nsw. In queensland they race a class for your type of boat being the 850 cc visually stock which allows for modified...
Hi 75luva
Have you had a chance to test drive the boat? That boat was originally designed in Sweeden as an Osca and one was brought into Australia and a mould made and others were manufactured in...
Hi PDT.
It was the pre 1993 920 cc motor which was identical to the first SST60 engine.
Stephen
Fast Fred. Yes these would be faster than the FT19S but would not have been allowed in Australia as the class in which the FT19S raced were stock motor class. The SST 60 that I raced was slightly...
Hi 850 racer. The 1250 cc mono record was set by me with a speed of 81.33mph with a stock SST 60 OMC swinging a very thin 25inch prop with the motor height right on the temperature limit and cooled...