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complete LS-1 weight VS Continental 520 weight

Waterthunder

Waterthunder

Well-known member
Here are some complete weights for an LS-1 Chevy. This information was derived from a hundred dollar wager. A buddy of mine would not believe that one of my complete LS-1’s including the cooling system radiator, hoses and water was lighter than a continental 520. Here are the weights the LS-1 was complete with flywheel, Rotator gear box, headers, starter, alternator bracket and alternator, water pump, MSD ignition box, engine was full of oil and was equipped with an oil filter, the radiator was included with water and yes all water piping and hoses were included. LS-1 weighed 499 pounds and the Continental 520 without headers weighed 518 pounds and we didn’t include it’s oil cooler oil. So now I have two people who owe me a 100 bucks.
 
I read your post on NOS and airboating and found it very informative.

I am using a single Soft Plume fogger on a plate under the carb,
the motor is a 540 angle valve. I wanted to know what jets you use for
the nos and fuel.

I have received mixed info on this and wanted your input because you
have done this on aircraft motors.

When I checked with NOS they said to run the jetting square, 46 nos
46 fuel which would be 100hp (doubt the hp claim) but was going to start there.

A good friend also said that NOS runs their jetting on the fat side for
safety and I could reduce the fuel jet by 3 to 5 points one point at a time and check plugs for any lean conditions etc.

Also what was your prop rpm increase with your nos system.

Any info will be greatly appreciated

Rick
 
All factory NOS jetting numbers are very conservative. However I always start with their base line because it’s easier to change a jet than a piston or rod. Start with the NOS tune up if it’s close adjust your fuel pressure instead of your jets. Aircrafts need to be fat on the fuel because they use fuel to cool the combustion chamber because their not water cooled so remember the more power you make the more heat you generate. So the best thing for you to do is run your boat to a practice area. Then put in bran new plugs then make a pass on nitrous. Immediately shut it off with out driving far and read your plugs. Beware of anybody who tell you a tune up because they can’t possibly know what your motor needs. It’s easy to be a nitrous hero and recommend a big tune up. So don’t follow some body else’s tune up let your motor tell you what it needs. If you want E mail me your phone number and I will call you tonight and tell you what to look for in your plugs.
 
Thunder,

I sent you my phone numbers but didn't hear from
you. No rush but wanted to make sure you got the
e-mail?
Rick
 
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