466 jd May 14, 2011 01:01PM
What is a good starting point on fuel and timing for my 466 JD pro field. Rules are 3000 rpm, p pump, 2.75 inlet on charger, water in jection, 18.4x38 cut tires. Looking for a starting point. Thanks
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Re: 466 jd May 15, 2011 12:34AM
500 cc and 30 degrees
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Re: 466 jd May 15, 2011 01:41AM
Approximately how much water is needed on a pass?
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Re: 466 jd May 15, 2011 04:02AM
16 to 24 ounces, through a one or two nozzle (easier to adjust flow, atomize water) setup when you add more fuel, add more water---a cheap exhaust temp gauge would be a good investment---keeping temp under 1900 would extend engine life
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Re: 466 jd May 15, 2011 04:11AM
Will I want to start water as soon as charger lights or a ways down track? I am really appreciating the info.
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Re: 466 jd May 15, 2011 06:50AM
Most 'idiot proof' system would be a relay switch which brings on the water at full throttle---if you build boost slowly and let the clutch load the motor some in the hole, you should be ready to roll by the time the throttle is at full open. If you nozzle is too big, and you smother the motor, you can reduce the nozzle size on the relay switch, and add a second nozzle with a manual switch for use when you build more exhaust temp during your run---or you pull enough flame that you get nervous about holing a piston or two!
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Re: 466 jd May 15, 2011 12:53PM
What would be a good 2.75 charger and what A/R housing?
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Re: 466 jd May 15, 2011 02:15PM
I have a good S-400 for sale. Send me an email for more info.
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Re: 466 jd May 15, 2011 03:03PM
The smallest S400 is 2.5x2.940 with a 1.10 housing and the next up is 2.75 x 3.2 and a 1.58 housing. I was told the small one is too small on the intake side and the next one is too big on the exhaust side. Any suggestions other than a 3LM-466?
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Re: 466 jd May 16, 2011 12:03AM
GT 42
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Re: 466 jd May 16, 2011 12:28AM
Do not allow exhaust temp to reach 1900 with stock pistons! they will safely take 1550 to 1600 degrees max if temp is taken just before the turbo!! If temp is taken after the turbo, lower that by 250 degrees.
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Re: 466 jd May 17, 2011 08:52AM
We are running a 466 in a slightly bigger turbo class, but safe bet would be right around 30 -32 degrees advance on timing and fuel depending on your turbo right around 550 -575 cc. Remember too lean and making lots of heat which can be bad if you are running stock pistons.And invest in a decent pryometer with high recall (frozen boost .com) has a good one on their site and install it on the manafold right below the turbo, like previous posts try to keep it under 1650.

you did not mention what style head you are running and if you have fly cut the pistons or decompressed the pistons. I would suggest if you are able to obtain a marine or stock innercooler manifold.
then cap off the stock intake and create a intake off the front of the manifold. In therory you are creating a cheap version of an air to air innercooler. And have a sweeping 90 degree off the turbo and have your water injection installed in the pipe before the intake it will atomize better. Also to keep heat in check try some header wrap on the ext manifold as the JD design of the heads can be counter productive for pulling when compare to other makes.
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