Quick cam installation question.....
Thread Starter
Supreme Member
Joined: Feb 2000
Posts: 1,196
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From: Fort Collins, Colorado
Quick cam installation question.....
I was reading Phil Parsons' in car cam installation article and it reads:
"Once the engine fires, keep it running between 1800 and 2200 rpm for a minimum of 18-20 minutes, varying the rpm between that range so that oil is splashed on the cam completely. Do not let the rpm's drop, because the excessive friction will destroy the cam. Once the break in period is over, shut it down, change the oil...."
My question is, since the cam I have is a hydraluic roller, is that break in period needed, or is it just for flat tappet cams?
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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End
Current Mods: LT4 Hot Cam, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip with 160* Thermostat, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.
Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)
"Once the engine fires, keep it running between 1800 and 2200 rpm for a minimum of 18-20 minutes, varying the rpm between that range so that oil is splashed on the cam completely. Do not let the rpm's drop, because the excessive friction will destroy the cam. Once the break in period is over, shut it down, change the oil...."
My question is, since the cam I have is a hydraluic roller, is that break in period needed, or is it just for flat tappet cams?
------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End
Current Mods: LT4 Hot Cam, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip with 160* Thermostat, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.
Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)
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Joined: Jan 2000
Posts: 19,640
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Dan,
That method is used to polish/break in the mill-finished lobes on flat-tappet camshaft installs. Your roller replacement should have had a fininsh already ground onto it, and should require no special break-in procedures other than the customary oil change requirements for breaking in any freshly built engine.
As always, follow the instructions provided with the camshaft. Lacking instructions, roller cams generally do not require this break-in prodcedure.
------------------
Later,
Vader
------------------
"I cannot take this any more... Saying everything I've said before..."
Adobe Acrobat Reader 4.0
That method is used to polish/break in the mill-finished lobes on flat-tappet camshaft installs. Your roller replacement should have had a fininsh already ground onto it, and should require no special break-in procedures other than the customary oil change requirements for breaking in any freshly built engine.
As always, follow the instructions provided with the camshaft. Lacking instructions, roller cams generally do not require this break-in prodcedure.
------------------
Later,
Vader
------------------
"I cannot take this any more... Saying everything I've said before..."
Adobe Acrobat Reader 4.0
Thread Starter
Supreme Member
Joined: Feb 2000
Posts: 1,196
Likes: 0
From: Fort Collins, Colorado
Thanks a million, Vader.
------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End
Current Mods: LT4 Hot Cam, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Gutted Catalytic Converter, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, Fully Ported TPI Plenum and Base, All Free Mods, Falken ZIEX Z-Rated Tires.
Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)
------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End
Current Mods: LT4 Hot Cam, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Gutted Catalytic Converter, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, Fully Ported TPI Plenum and Base, All Free Mods, Falken ZIEX Z-Rated Tires.
Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)
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