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Cam Slection & Programing ?

Old Apr 6, 2004 | 04:48 PM
  #1  
MTPFI-MAF's Avatar
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From: Point Marion PA.
Car: 1982 CAMARO;
Engine: 1985 LB9;
Transmission: T-5/
Cam Slection & Programing ?

Ok I am Getting ready to put a 350 in place of the Tried and true 1985 305. I am Buying a Gm Performance LM1. This is going to Put My Tpi on this engine and Tune with a prominator, Question is I want a decent cam that will work With the stock heads, springs, Ect. That I won't have too many problems tuning a .Bin For. Here are the engine Specs. I am also running a T-5 For the tranny.

Engine Name: 350 LM1
Horsepower: 249 HP @ 5,000 RPM (With The Stock Cam That I want to change.)
Torque: 304 Ft/Lbs @ 3,500 RPM
Compression Ratio: 8.50 to 1
Block: NEW 4 – Bolt, 2 Piece Rear Seal, 4.000” Bore
Heads: Cast Iron, 76cc
Valves: 1.940” / 1.500”
Crankshaft: Cast Nodular 3.480” Stroke
Camshaft lift: 0.390” / 0.410” Hydraulic Duration @ 0.050”: 195° / 202°This is the cam it comes with that I want to get Rid Off before I drop the engine.




This cam will only be used Untill Next Year when I do the AFR195 Heads,A better Cam, And Stealth Ram Swap. Also What Size injectors should I go With So that I won't have to repalace When I do the head ,cam, Intake swap Later down the road. Will 24lbs or should I go Bigger.
I will also Be doing a 165' Swap From the slow 870 That it has Now.
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Old Apr 6, 2004 | 04:56 PM
  #2  
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From: concord New Hampshire
Car: 87 iroc and 88 k2500 tbi truck
Engine: l98 and lo5
Transmission: 700 r4's babby
there is no thing that works good with stock springs there trash i hate them and wish i swaped them when i did my motor the thing flotes at 5000 with my xe249H-12
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Old Apr 6, 2004 | 05:04 PM
  #3  
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From: Point Marion PA.
Car: 1982 CAMARO;
Engine: 1985 LB9;
Transmission: T-5/
Originally posted by c4boom
there is no thing that works good with stock springs there trash i hate them and wish i swaped them when i did my motor the thing flotes at 5000 with my xe249H-12
Well I am keeping the stock Springs on since they will be brand new. I am not looking for anything Really large. Just Want to makes sure the duration and stuff is correct, Since I am not sure What A Tpi Likes Best I figured I would Ask. I know that every Motor is different but there has to be a good starting point. I might Go with a Cam that is close the the orginal L98 Cam If possiable since this motor has Hydraullic Flat Tappet and No Roller.
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Old Apr 6, 2004 | 05:13 PM
  #4  
c4boom's Avatar
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From: concord New Hampshire
Car: 87 iroc and 88 k2500 tbi truck
Engine: l98 and lo5
Transmission: 700 r4's babby
yes it is that cam is way small though you would be much beter of spending the the 100 bucks (50 for springs and the rest for a tool and keepers and stuff) but if you want i think you can use the cam out of a 85 vet
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Old Apr 6, 2004 | 05:31 PM
  #5  
MTPFI-MAF's Avatar
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From: Point Marion PA.
Car: 1982 CAMARO;
Engine: 1985 LB9;
Transmission: T-5/
were the vetts still hydruallic in 85'
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