Re: Moving up to Jesel
[Re: AndyF]
#33899
01/10/07 04:28 PM
01/10/07 04:28 PM
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Joined: Apr 2003
Posts: 2,708 jax. fla.
70Dustmite440
master
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master
Joined: Apr 2003
Posts: 2,708
jax. fla.
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Quote:
One thing I see from the rocker arm kit is that it uses the 440-1 offset. Evidently Jesel doesn't have a standard offset kit for the Indy SR and EZ
so there is a great big offset where you don't need it?
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Re: Moving up to Jesel
[Re: AndyF]
#33910
01/13/07 08:55 PM
01/13/07 08:55 PM
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Joined: Jan 2004
Posts: 512 IL
acme383
mopar
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mopar
Joined: Jan 2004
Posts: 512
IL
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andy, what size springs and cups are you using?
"Beating the competition with a stick is just automatic!"
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Re: Moving up to Jesel
[Re: sunroofgtx]
#33911
01/14/07 12:23 AM
01/14/07 12:23 AM
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Joined: Jan 2003
Posts: 31,052 Oregon
AndyF
OP
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Thanks Rick, I figured since Indy and Jesel didn't provide instructions I'd just go ahead and document how to do this conversion. I actually think this Jesel setup is probably the way to go for guys who are getting serious with their motors. The Harland Sharp or Erson stuff costs almost as much but doesn't have some of the advantages that the Jesel individual shafts bring.
Acme - I'm going to be running PSI 1246 springs. They are 1.645 x 2.00 high with 300 lbs on the seat. I'm setting up the valvetrain so I can run .800 lift. My old springs were installed at 1.950 height so I just had to use some +0.050 locks to move up to a 2.00 installed height. It looks like that is about the limit for this setup. Much taller than that and the retainer will hit the rocker arm.
Now that I have it mocked up, I'm pretty sure that Jesel could easily make a standard offset intake setup using mostly the same parts that are in this kit. I'm going to talk to Jesel engineering next week about doing a custom kit for me so I can try it out. These exhaust rocker arms have .250 offset and it looks like that offset will work just fine on the intake side as well.
Last edited by AndyF; 01/14/07 12:29 AM.
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Re: Moving up to Jesel
[Re: AndyF]
#33912
01/14/07 04:24 AM
01/14/07 04:24 AM
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Joined: Nov 2003
Posts: 1,664 North Sweden
RT540
top fuel
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top fuel
Joined: Nov 2003
Posts: 1,664
North Sweden
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Quote:
I'm going to talk to Jesel engineering next week about doing a custom kit for me so I can try it out. These exhaust rocker arms have .250 offset and it looks like that offset will work just fine on the intake side as well.
But if you keep the 0.800" offset int rockers you leave the option to straigthen out the pushrod wall for more CA in the future. I donīt know how the EZ heads are in CA in different places, but my b1bs heads would like the 440-1 offsets better. Straigthen out the pushrod walls do involve welding or the use of epoxy.
Keep up the good work, and keep the pics comming
Another thing I am interested in, will the rockers clear Ø1.645 springs ?? I have 1.625 and if the Jesel clears better than the T&D, I will know which ones to get if or when I upgrade my rockers.
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Re: Moving up to Jesel
[Re: ToddP]
#33914
01/14/07 04:14 PM
01/14/07 04:14 PM
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Joined: Jan 2003
Posts: 31,052 Oregon
AndyF
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Thanks for the link to www.moparmax.com, I hadn't seen that before. The interesting thing about that article is they said they got instructions from Jesel as well as a shaft checking tool. My kit didn't come with instructions or a tool. And when I called Indy they said they couldn't help me. Jesel tech line also told me that there weren't any instructions available for this kit and they didn't offer to send me a height checking tool. I think I'll be back on the phone on Monday.
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Re: Moving up to Jesel
[Re: ToddP]
#33917
01/16/07 04:24 PM
01/16/07 04:24 PM
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Joined: Jan 2003
Posts: 31,052 Oregon
AndyF
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I got a reply from Indy and they told me the location of the stand as well as how far to machine the heads. They said to machine the stands down until they are 0.500 inches above the tall head bolt counterbores. I swung by the local circle track engine builder and he loaned me a Jesel shaft height checking tool. According to the tool I need to lower the shafts about 0.125 from where they are right now. That seems to agree with the number that Indy gave me so I think I'm closing in on it. Here is a picture of the Jesel tool in action. The top of the valve tip is supposed to be flush with the top of the tool but in this picture you can tell that the valve tip is down in the hole a bit. So I need to mount the heads back up in the Bridgeport and mill the stands down some more.
Last edited by AndyF; 01/16/07 04:26 PM.
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