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RyGuyTooDry
 Post subject: Cam grind for boost?
PostPosted: Sun May 05, 2013 6:56 pm 
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TBI Slant 6

Joined: Mon Nov 26, 2012 10:37 pm
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Location: Hamilton, ON, Canada
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Engine is a 1965 225. Basically stock except for a super six manifold and a 350 cfm holley. Turbo is a TD04. Anyone have a good cam grind for this setup? It'll be between 10-12 psi. Daily driven, so I wouldn't want something too lumpy.

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Jerame_c
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PostPosted: Sun May 05, 2013 9:58 pm 
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3 Deuce Weber

Joined: Sun Jun 26, 2011 11:11 am
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I'm working on turboing mine right now. The advice i have gotten from my turbo friends is that low overlap cams work well, something like an RV cam grind. I am just using my stock cam until I have driven it under boost for a while then i can decide better where to fine tune from there.
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Ssg Pohlman
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PostPosted: Mon May 06, 2013 4:02 am 
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EFI Slant 6
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Location: Terre Haute IN
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My advice would be to cruies over to the FAQ in the boost section that I built. I will cover about every question you can come up with. For short, a lot of people will recommend the stock cam. Shaker223 ran sub 12s with all stock and 340 springs.

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Shaker223
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PostPosted: Mon May 06, 2013 10:23 am 
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Turbo EFI
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Quote:
My advice would be to cruies over to the FAQ in the boost section that I built. I will cover about every question you can come up with. For short, a lot of people will recommend the stock cam. Shaker223 ran sub 12s with all stock and 340 springs.
Actually, it was high 11s but with alot more boost than you are planning. A stock cam will make plenty of power. Spring upgrades are needed. Just watch the backpressure.

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RyGuyTooDry
 Post subject:
PostPosted: Mon May 06, 2013 10:37 am 
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TBI Slant 6

Joined: Mon Nov 26, 2012 10:37 pm
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Location: Hamilton, ON, Canada
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So 340 springs would work fine? And also, do you think with headwork (engine builder valves and port job) at 10-12# could get me into mid 12's? 2900# car, 2.76 gears, rebuilt 225/904, td04, super six mani, holley 350cfm.

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2002 Subaru OBS
1995 Lexus LS400 Race Car
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Shaker223
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PostPosted: Mon May 06, 2013 12:49 pm 
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Turbo EFI
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Shimmed 340 springs would work...IIRC 120# on the seat. You should be able to get into the 12's with the mods listed.

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11.02 @ 120.56
http://www.youtube.com/watch?v=EAxRmoDgsdY
Chassis dyno
http://www.youtube.com/watch?v=wd6hFGzLJMc


Last edited by Shaker223 on Tue May 07, 2013 5:27 am, edited 1 time in total.

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RyGuyTooDry
 Post subject:
PostPosted: Mon May 06, 2013 6:43 pm 
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TBI Slant 6

Joined: Mon Nov 26, 2012 10:37 pm
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Location: Hamilton, ON, Canada
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Alright, thanks! I'll let you know how it works out.

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2002 Subaru OBS
1995 Lexus LS400 Race Car
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