292XFI work with Eagle SIR 5.7" rods?
01-10-2018, 02:45 PM
#1
Instructor
Thread Starter
292XFI work with Eagle SIR 5.7" rods?
Comp cam work with Eagle SIR 5.7" rods on a 383 kit
does anyone know cam to rod avg clearance ?
comp calling .900 base circle as custom grind +$100. if your ordering a "custom grind"
cam then small base is no extra charge.
looks like the recommended clearance is .050 but would .030 be ok with street car?
UPDATE:
decided to go with comp 282/288 grind#CS-XR282HR-10
0.510 int/ 0.520 exh
difficult to measure but looks like .030 cam to rod clearance.
Rotating assembly is balanced. would prefer not to grind on rods.
does anyone know cam to rod avg clearance ?
comp calling .900 base circle as custom grind +$100. if your ordering a "custom grind"
cam then small base is no extra charge.
looks like the recommended clearance is .050 but would .030 be ok with street car?
UPDATE:
decided to go with comp 282/288 grind#CS-XR282HR-10
0.510 int/ 0.520 exh
difficult to measure but looks like .030 cam to rod clearance.
Rotating assembly is balanced. would prefer not to grind on rods.
Last edited by Street89vette; 01-22-2018 at 11:52 AM.
01-10-2018, 04:39 PM
#2
Safety Car
Comp cam 292XFI 0.584 lift work with Eagle SIR 5.7" rods on a 383 kit
does anyone know cam to rod avg clearance ?
still time to go with small base circle.
details on lift:
Intake Valve Lift with Factory Rocker Arm Ratio: 0.584 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.579 in.
Valve Lift with Factory Rocker Arm Ratio: 0.584 int./0.579 exh.
Lobe Separation (degrees): 113
Computer-Controlled Compatible: Yes
Grind Number: 292XFI HR 13
does anyone know cam to rod avg clearance ?
still time to go with small base circle.
details on lift:
Intake Valve Lift with Factory Rocker Arm Ratio: 0.584 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.579 in.
Valve Lift with Factory Rocker Arm Ratio: 0.584 int./0.579 exh.
Lobe Separation (degrees): 113
Computer-Controlled Compatible: Yes
Grind Number: 292XFI HR 13
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Street89vette (01-10-2018)
01-10-2018, 06:57 PM
#3
Instructor
Thread Starter
those guys at comp increased the price over a hundred higher for asking for small base. Any 800 numbers are appreciated.
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Street89vette (01-22-2018)
01-13-2018, 04:19 PM
#5
Racer
I bet Comp would whether the would POSSIBLY work or not but wouldn't make a promise. Even if they tell you they will absolutely work, you would be crazy not to measure for yourself.
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Street89vette (01-17-2018)
01-17-2018, 09:16 PM
#6
Instructor
Thread Starter
thanks
Last edited by Street89vette; 01-17-2018 at 10:12 PM.
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Street89vette (01-22-2018)
01-22-2018, 11:54 AM
#8
Instructor
Thread Starter
update: cam arrived / measuring std base clearances
Comp cam work with Eagle SIR 5.7" rods on a 383 kit
does anyone know cam to rod avg clearance ?
comp calling .900 base circle as custom grind +$100. if your ordering a "custom grind"
cam then small base is no extra charge.
looks like the recommended clearance is .050 but would .030 be ok with street car?
UPDATE:
decided to go with comp 282/288 grind#CS-XR282HR-10
0.510 int/ 0.520 exh
difficult to measure but looks like .030 cam to rod clearance.
Rotating assembly is balanced. would prefer not to grind on rods.
does anyone know cam to rod avg clearance ?
comp calling .900 base circle as custom grind +$100. if your ordering a "custom grind"
cam then small base is no extra charge.
looks like the recommended clearance is .050 but would .030 be ok with street car?
UPDATE:
decided to go with comp 282/288 grind#CS-XR282HR-10
0.510 int/ 0.520 exh
difficult to measure but looks like .030 cam to rod clearance.
Rotating assembly is balanced. would prefer not to grind on rods.
01-22-2018, 07:00 PM
#9
Le Mans Master
..... Rotate the assembly and use a piece of solder between the rod and cam lobe to get an accurate dimension ... the cam and rod will deform the solder to its minimum thickness without hurting either ... typically only cylinders 1 , 2 , 5 , and 6 are the ones that get close ... I have also used a zip tie strap as a gauge ... they are easy to measure and usually around .050 thick ... if it passes through , you're good to go ! .....
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Street89vette (01-22-2018)
01-23-2018, 09:53 AM
#10
Team Owner
Member Since: Oct 2004
Location: altered state
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St. Jude Donor '05
^^^
you have to measure alll of them regardless no matter what a mfr says
ck the pan rail too.
you have to measure alll of them regardless no matter what a mfr says
ck the pan rail too.