lobo
Senior Member
Posts: 58
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Post by lobo on Aug 22, 2013 21:02:40 GMT -6
Just bought a 73' Nitro. Going to put a lightweight Magnum hood on it from Ruppshop. Dropping in a Sachs 340ss with a Donaldson muffler. Likely will use a Comet Duster clutch. Planning to run the HD class at Long Lake for the one lunger 100. Any thoughts/ advice? Anyone want the engine the Nitro came with?
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Post by rupprat on Aug 22, 2013 23:16:07 GMT -6
Is it the original 'S' engine? What size? What's the compression? Where are you located?
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lobo
Senior Member
Posts: 58
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Post by lobo on Aug 23, 2013 6:20:27 GMT -6
340ss Engine has been completely rebuilt, all stock. Hopefully get some photos up tonight of sled and engine. Pretty excited. Need to find the correct HD Tilly for this engine and advice on a belt and clutching. Hints on reducing weight. How heavy were these stock Rupp seats?
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Post by ruppluver on Aug 23, 2013 11:23:46 GMT -6
He's in MN!
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lobo
Senior Member
Posts: 58
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Post by lobo on Aug 23, 2013 21:57:14 GMT -6
Got a chance to see the Nitro tonight. Hood is too nice to use as a racer. Faded but otherwise perfect condition. Original windshield looks good too. Anyone want it? I'll need some new glass for the lateral lower panels as they are a bit rough. Seat is perfect. Again, maybe too perfect for racing. Should I use it or pick up a replacement and sell this to someone who is doing a true restoration?
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lobo
Senior Member
Posts: 58
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Post by lobo on Aug 30, 2013 6:16:31 GMT -6
So I have the 340ss Sachs. I have a choice. Use a Donaldson muffler or the stock Skiroule muffler that came with a Skiroule one lunger Sachs. No difference? Either better for power?
Use stock Rupp handle bars or cut off and weld different bars, lighter. Thoughts?
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lobo
Senior Member
Posts: 58
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Post by lobo on Aug 30, 2013 6:22:47 GMT -6
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Post by Ruppsforever on Aug 30, 2013 13:53:04 GMT -6
What size motor came out of it ?? We are looking for a 440 S-3. We would probably take the seat off your hands too.
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Post by sprintmania on Aug 31, 2013 15:12:06 GMT -6
good luck! it's a blast and a learning experience, same sled and motor 2 years ago and schooled pretty bad, built a different sled (rupp) and ran in a different class last year got 8th out of 21 HD is definitely for the big boys.. money wise at least
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Post by seacoastrupp on Sept 1, 2013 10:25:29 GMT -6
If the sled was a 295- 340 Nitro you should be ok with top gear for the 340ss sachs. If it was a 400-440 it has the wrong gear,,, check on this, should be 13 tooth... Have a blast... sounds fun..
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lobo
Senior Member
Posts: 58
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Post by lobo on Sept 2, 2013 21:00:44 GMT -6
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lobo
Senior Member
Posts: 58
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Post by lobo on Sept 2, 2013 21:01:44 GMT -6
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lobo
Senior Member
Posts: 58
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Post by lobo on Sept 2, 2013 21:02:25 GMT -6
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lobo
Senior Member
Posts: 58
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Post by lobo on Sept 2, 2013 21:03:12 GMT -6
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lobo
Senior Member
Posts: 58
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Post by lobo on Sept 2, 2013 21:03:52 GMT -6
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lobo
Senior Member
Posts: 58
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Post by lobo on Sept 2, 2013 21:04:47 GMT -6
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lobo
Senior Member
Posts: 58
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Post by lobo on Sept 4, 2013 7:51:25 GMT -6
Sprintmania,
What problems did you have running the 73 nitro with a 340 Sachs ss? Hopefully I can learn a thing or two to make this one faster. What Rupp chassis engine combo did you switch to with more success?
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Post by sprintmania on Sept 5, 2013 20:20:37 GMT -6
i pick up the the 340ss out of a chicken coupe about a month before the race filed the points and slapped it in and went racing in the HD class...i wasn't ready,i didn't clutch it or mess with the gears
the second sled was a 70 snosport bulk head,hood,belly pan and the 73 nitro tunnel,suspension,track,spindles
97 MACH Z, seat motor was is sa293 sachs, 47 mph on my gps but im still playing with it, i run it in the relic class
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Post by rupp838485 on Sept 7, 2013 18:50:35 GMT -6
I have a 1973 Nitro all changed over to a Sachs Motor. This Sled won the VOLS Point Champ 2 years in a row. E-mail me and we maybe can work something out. I am i
n Osakis,MN
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Post by rupp838485 on Sept 7, 2013 18:51:12 GMT -6
I have a 1973 Nitro all changed over to a Sachs Motor. This Sled won the VOLS Point Champ 2 years in a row. E-mail me and we maybe can work something out. I am n Osakis,MN
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