LT1 boost cam for 76mm?
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Teching In
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From: The concrete jungle
LT1 boost cam for 76mm? What would be a good cam spec for a 383ci Lt1 with a 76mm turbo? Car is going to see lots of boost and will be run on e85. Has anybody built something similar to my setup and what cam did you use? Thanks.
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From: Colorado Springs, Co/ Central, Ca
What 76mm turbo are you running? A Isky 225/225,.540(1.6 rocker), 114 would work well with a 383/76mm PT76, or GT42, or Tc76 style turbo. . Get the cam too big and you will be choked up top unless you have a bad *** 76mm like a GT45, or S400. Then you could go with the 234/234, .560", 114
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From: Colorado Springs, Co/ Central, Ca
9 Second Truck Club
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From: Colorado Springs, Co/ Central, Ca
I wouldn't run the forward exh split with that turbo, and CI. 230/230 is as big as I'd go maybe even 230/226.... JMO With that exh side you are going to start choking up around 5500RPM maybe sooner Im afraid. My TC76/364CI 6.0L Is done at 5200 regardless of cam. You have another almost 20CI and only a tad larger turbine.
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Verdad Gallardo Thread Starter
Teching In
Joined: Oct 2010
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From: The concrete jungle
I wouldn't run the forward exh split with that turbo, and CI. 230/230 is as big as I'd go maybe even 230/226.... JMO With that exh side you are going to start choking up around 5500RPM maybe sooner Im afraid. My TC76/364CI 6.0L Is done at 5200 regardless of cam. You have another almost 20CI and only a tad larger turbine.
Thread Starter
Teching In
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From: The concrete jungle
I should be going through the traps around 5500 and 6000rpms so hopefully the turbo will get me there.(fingers crossed) I really wish I had the money for a larger turbo, oh well maybe next year. Realquick do you think there is any power to be gained by going to say a 230/230 or a 230/226 instead?
Thread Starter
Teching In
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From: The concrete jungle
I bet you wouldn't see much difference in power between the three to be honest, so I would run it if you already have the cam. I ran the 230/236 114LSA N/A with LE2's and made peak power @ 6000rpm, so you should be fine going thru the traps. Now, iuf you don't have a cam yet, certainly look around and talk to people like cam motion, LE, etc.
