TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

cam swap

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Old Jul 12, 2006 | 05:11 PM
  #1  
dr1's Avatar
dr1
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Joined: Jan 2004
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From: Connecticut
Car: '89 Firebird Formula
Engine: 305 TBI
Transmission: T5
cam swap

ok since the LT1 cam swap seems a fairly popular choice for TBI, i grabbed one on ebay awhile back for cheap and its been waiting around since

so I was playing with desktop dyno 2000, and i know its not accurate to any degree but I hear its nice to get an idea of what a cam swap might do for you etc.. and I figure im doing something wrong... but I cant get it to tell me that its a good idea

i mean +2hp and a noticable loss of off idle torque doesnt sound like a good idea

what am i doing wrong here? ;p

anyone actually dyno before and after the cam swap? (i mean the cam swap alone, not a whole buncha mods)
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Old Jul 12, 2006 | 05:39 PM
  #2  
BMmonteSS's Avatar
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Joined: Feb 2002
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From: Buckhannon, WV
Car: 84' Monte
Engine: 350
Transmission: 700-r4
Axle/Gears: ferd 9" posi 3.50 gears
Are you sure your're putting in the correct numbers for the stock cam? It's something like 187deg at .050
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Old Jul 12, 2006 | 10:28 PM
  #3  
dr1's Avatar
dr1
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Joined: Jan 2004
Posts: 678
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From: Connecticut
Car: '89 Firebird Formula
Engine: 305 TBI
Transmission: T5
im not sure? the top 2 values in the cam spec thing I had 109 and 112 i believe, then the correct lifts and duration
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