Chassis dyno run ?
Thread Starter
Race Director
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From: Forked River NJ
Chassis dyno run ?
73jst4fun and I have an appointment this Thursday for some dyno runs. Besides checking everything, running through the valve clearance, making sure the timing and everything is set what else do we need or should do. I have a complete set of jets for the carb, timing lights, misc. tools is there anything else we need. The dyno has an AF gauge so I'll leave my LM1 at home. Any dyno veterans with any words of wisdom? 
Race Director
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From: San Diego - Deep Within The State of CONFUSION!
73jst4fun and I have an appointment this Thursday for some dyno runs. Besides checking everything, running through the valve clearance, making sure the timing and everything is set what else do we need or should do. I have a complete set of jets for the carb, timing lights, misc. tools is there anything else we need. The dyno has an AF gauge so I'll leave my LM1 at home. Any dyno veterans with any words of wisdom?
Burning Brakes
Joined: Jul 1999
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From: Hudson NH
73jst4fun and I have an appointment this Thursday for some dyno runs. Besides checking everything, running through the valve clearance, making sure the timing and everything is set what else do we need or should do. I have a complete set of jets for the carb, timing lights, misc. tools is there anything else we need. The dyno has an AF gauge so I'll leave my LM1 at home. Any dyno veterans with any words of wisdom?
Have fun and good luck.
Mark
Thread Starter
Race Director
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From: Forked River NJ
You may want to throw a fresh set of plugs in there depending on how old your current plugs are. Bring a notepad so you can record your changes. Don't forget carb gaskets. If you have 2 O2 bungs, you may want to bring your LM1 to compare to the shop's AF meter. Cameras and videos are nice as well!
Have fun and good luck.
Mark
Have fun and good luck.
Mark
Carb gaskets! Got some extras. I'll put them in the box also.
Thread Starter
Race Director
Joined: Dec 1999
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From: Forked River NJ
Thread Starter
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
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Thread Starter
Race Director
Joined: Dec 1999
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From: Forked River NJ
Drifting
Joined: Nov 2002
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From: Shore NJ
This should be fun on Thursday.... I told the guy we had no electronics/computers to deal with and he "praised the Lord"...
Last edited by 73jst4fun; Dec 26, 2006 at 08:02 PM.
Pro
Joined: Jul 2002
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From: North Port, FL
This is probably obvious but make sure your throtle blades are opening all the way when the accelerator is on the floor so you don't waste runs like I did trying to figure out why power was way off.
Pro
Joined: Jun 2004
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From: Miami FL
St. Jude Donor '11, '14
Don't forget. You will be "driving" over 120 mph. Air the tires, tighten the lugnuts, inspect u-joints, coolant and hose connections, etc. Any thing you would do before an autocross, 1/4 mile pass, or long road trip. Also make sure your dyno guy knows how to strap down and IRS equipped car.
Good luck and have fun.
Good luck and have fun.
Thread Starter
Race Director
Joined: Dec 1999
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From: Forked River NJ
Probably closer to 150 mph. I'll probably go to 7000 rpm. I'll make sure everything is tight and up to pressure.
Going to bring my camera. It is capable of short video clips also. Looks like my son is coming with me so he can take the video or pics.
I'll go over the car today to make sure nothing obvious will happen. You know Murphys law though
Last edited by Gordonm; Dec 27, 2006 at 09:06 AM.
Thread Starter
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From: Forked River NJ
I am running the stock dist that has been recurved. Right now I have 20 initial with 36 total and the vacuum advance disconnected. The HD points fire a Crane HI6 box with a MSD coil. The plug wires are Moroso Blue Max The plugs are new within the last 300 miles gapped to .040. They are AC plugs.
Race Director
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From: San Diego - Deep Within The State of CONFUSION!
I am running the stock dist that has been recurved. Right now I have 20 initial with 36 total and the vacuum advance disconnected. The HD points fire a Crane HI6 box with a MSD coil. The plug wires are Moroso Blue Max The plugs are new within the last 300 miles gapped to .040. They are AC plugs.
Team Owner
Joined: Apr 1999
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I would even go .050. I'm also a firm believer in 4 tip plugs like the Bosche Plat 4P.
Depending on your chamber type I would try some other max timing settings in 2 degree increments.
The local shop here that I have dealt with doesn't allow over 120 mph and prefer lower. I don't know the correction factor for using other than a 1:1 gear. You might ask about running in 2nd or 3rd
Depending on your chamber type I would try some other max timing settings in 2 degree increments.
The local shop here that I have dealt with doesn't allow over 120 mph and prefer lower. I don't know the correction factor for using other than a 1:1 gear. You might ask about running in 2nd or 3rd