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

88 305 tbi to 350 tbi

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Old 11-10-2011, 07:25 AM
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88 305 tbi to 350 tbi

What would be the best cam for a throttle body with 350 swap?

I seen this on summit racing. Has anyone tried it before?

Brand
GM PerformanceManufacturer's Part Number
14097395Part Type
CamshaftsProduct Line
GM Performance Hydraulic Roller CamshaftsSummit Racing Part Number
NAL-14097395

Cam Style
Hydraulic roller tappetIntake Duration at 050 inch Lift
196Exhaust Duration at 050 inch Lift
206Duration at 050 inch Lift
196 int./206 exh.Advertised Intake Duration
288Advertised Exhaust Duration
308Advertised Duration
288 int./308 exh.Intake Valve Lift with Factory Rocker Arm Ratio
0.431 in.Exhaust Valve Lift with Factory Rocker Arm Ratio
0.451 in.Valve Lift with Factory Rocker Arm Ratio
0.431 int./0.451 exh.Lobe Separation (degrees)
109
Old 11-11-2011, 10:42 AM
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Re: 88 305 tbi to 350 tbi

I would consider an LSA of 115-116 for puter friendliness....that one is 109... go to their line of computer cams and find one with same lift at .05 but 114 or so LSA
Old 11-11-2011, 03:26 PM
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Car: 75 Beast
Engine: 383 +EBL Flash
Transmission: 700R4
Axle/Gears: 4.11 with 33"
Re: 88 305 tbi to 350 tbi

Actually LSA 112 with duration of less than 215 deg @ .050 will work, but it will not be optimum. Anything with longer duration and tighter LSA will result in unstable idle with stock ECM calibration. For a complete novice stay under 208deg and LSA of 112 to 114deg range. A head work, camshaft along with headers (and free flowing exhaust) will be the biggest bang for the buck! Getting VE & SA tables to take advantage of free breathing engine will take you to the next level.

//RF
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