i want one that will idle nice and lumpy, and goes well in high revs
my engine is a 186 , bored 60thou, blueprinted ect ect, should rev over 6k
which one do you guys recon??
here is a link
Crow Cams
cheersnathan
Camshafts (holden six)
Started by
_UCV80_
, Nov 12 2005 03:21 PM
15 replies to this topic
#1
_UCV80_
_UCV80_
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Posted 12 November 2005 - 03:21 PM
Hey i need to find out what cam i should get for my engine,
i want one that will idle nice and lumpy, and goes well in high revs
my engine is a 186 , bored 60thou, blueprinted ect ect, should rev over 6k
which one do you guys recon??
here is a link
Crow Cams
cheers
nathan
i want one that will idle nice and lumpy, and goes well in high revs
my engine is a 186 , bored 60thou, blueprinted ect ect, should rev over 6k
which one do you guys recon??
here is a link
Crow Cams
cheersnathan
#2
_Yella SLuR_
_Yella SLuR_
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Posted 12 November 2005 - 09:29 PM
They are too important to be picking willy-nilly, they are the brains of your engine. Crow Cams did have an online computer selector. You need to select a cam based on how you are going to use the car, not what your mates think.
Try this one, although I think it is a fax back setup, although I might be wrong!
Crane Online Cam Selection
Try this one, although I think it is a fax back setup, although I might be wrong!
Crane Online Cam Selection
#3
_[BOTTLEDUP]_
_[BOTTLEDUP]_
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Posted 12 November 2005 - 10:50 PM
No point emailing Crane they won't know what a 186 is 
I thought that was going to be Sarsh's engine...
Need more details before I can help you choose a cam... Give me the specs on everything:
Cyl head type,
Inlet and exhaust valve sizes
Compression ratio
Intake manifold
Carburettor
Exhaust
RPM range
Auto/Manual
Diff ratio
Vehicle weight
Fuel type
Intended use
Roller Rockers?
Valve springs?
I thought that was going to be Sarsh's engine...
Need more details before I can help you choose a cam... Give me the specs on everything:
Cyl head type,
Inlet and exhaust valve sizes
Compression ratio
Intake manifold
Carburettor
Exhaust
RPM range
Auto/Manual
Diff ratio
Vehicle weight
Fuel type
Intended use
Roller Rockers?
Valve springs?
#4
_1QUICK LJ_
_1QUICK LJ_
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Posted 13 November 2005 - 12:04 AM
the 35802 will make good mid to topend power but must have a good head and compression and exhaust and intake
#5
_Keithy's_UC_
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Posted 13 November 2005 - 07:22 AM
Hey man!
I have a 186 (now) just finished rebuilding it, have got some hardcore internals and find that "Precision Dynotec XU-1" Cam is perfectly what you have described. Im using it in mine and it lumps over at idle, revs nicely and still drives as if you were running a standard cam (very smooth power delivery).
Ive only got 150kms on the new motor, so i havent flogged it yet (been up to 4000rpm, but no higher), but it likes to rev - it wanted more revs than what i was brave enough to give it!
I fly home from work on thursday night - ill jump on MSN messenger and send you a video clip with sound of mine running! It sounds awesome!
Keith
I have a 186 (now) just finished rebuilding it, have got some hardcore internals and find that "Precision Dynotec XU-1" Cam is perfectly what you have described. Im using it in mine and it lumps over at idle, revs nicely and still drives as if you were running a standard cam (very smooth power delivery).
Ive only got 150kms on the new motor, so i havent flogged it yet (been up to 4000rpm, but no higher), but it likes to rev - it wanted more revs than what i was brave enough to give it!
I fly home from work on thursday night - ill jump on MSN messenger and send you a video clip with sound of mine running! It sounds awesome!
Keith
#6
_UCV80_
_UCV80_
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Posted 13 November 2005 - 09:08 AM
thanx for the replys,
Looks like i need to sort the cam out last
here my list so far, not finished though
186 block
60 thou pistons flat top
Starfire rods
JP straight cut timing gears (JP 5994)
Harmonic balancer
Big end bearings Size:
Crank bearings Size:
Cam bearings Size:
Camshaft
Gasket kit
Hydraulic lifters
350 Holley
pacemaker extractors, 2 1/2" exhaust
Head will be a yella terra (no info on it yet) but i do want a very good highcomp one
ill have to build this engine then decide on the cam
but i do want a very tough engine for street use, even if its a bitch in peak hour traffic.
thanx guys.
cant wait to see some of those vids
Looks like i need to sort the cam out last
here my list so far, not finished though
186 block
60 thou pistons flat top
Starfire rods
JP straight cut timing gears (JP 5994)
Harmonic balancer
Big end bearings Size:
Crank bearings Size:
Cam bearings Size:
Camshaft
Gasket kit
Hydraulic lifters
350 Holley
pacemaker extractors, 2 1/2" exhaust
Head will be a yella terra (no info on it yet) but i do want a very good highcomp one
ill have to build this engine then decide on the cam
but i do want a very tough engine for street use, even if its a bitch in peak hour traffic.
thanx guys.
cant wait to see some of those vids
#7
_[BOTTLEDUP]_
_[BOTTLEDUP]_
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Posted 13 November 2005 - 12:10 PM
You can go about it two ways either settle on a camshaft then built the engine to suit, or build your engine and find a cam that works in that combo... Needless to say the first option is preferable, otherwise you will be making compromises.
For the record, in the Crow selection the 35604 is the XU1 grind, and 35616 is the 'Bathurst' XU1 spec. Both for 202s.
I'd go with 1QUICKLJ's recommendation of a 35802, you'll also need:
4823 valve springs
11707 retainers
11703 collets
I'd recommend R/Rockers Street Terras will be fine, and also get some decent pushrods, Crow part# PR9515.
Let me know if you need any of them.
For the record, in the Crow selection the 35604 is the XU1 grind, and 35616 is the 'Bathurst' XU1 spec. Both for 202s.
I'd go with 1QUICKLJ's recommendation of a 35802, you'll also need:
4823 valve springs
11707 retainers
11703 collets
I'd recommend R/Rockers Street Terras will be fine, and also get some decent pushrods, Crow part# PR9515.
Let me know if you need any of them.
#8
barny_lx
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Posted 13 November 2005 - 01:23 PM
i am puttign a 30/ 70 in mine, 35565 or something!
i wasnted something a bit bigger, but not a cam that woudlnt kick in untill like 300rpm, as i wont be thrashing the motor! its just a nice daily!
Although a lumpy idle would be nice !
i wasnted something a bit bigger, but not a cam that woudlnt kick in untill like 300rpm, as i wont be thrashing the motor! its just a nice daily!
Although a lumpy idle would be nice !
#9
_kb3310_
_kb3310_
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Posted 13 November 2005 - 02:05 PM
just for addedinfo we run the blue torana with the 35616 in a 202 40thou over and std balanced crank with racetech headwork and triple strombergs running 6J needles and this combination pulls strongly up most of our power hills right up to 7500. and with an acceptable idle, not a pig! the previous suggestion is best, thoroughly check out the crow cams site regards kev
#10
_UCV80_
_UCV80_
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Posted 14 November 2005 - 09:46 AM
cool thanx for all the info , ill copy it incase this forum disapeares
is a 9:1 head compression high, ? was lookin at a yt head for sale
is a 9:1 head compression high, ? was lookin at a yt head for sale
#11
_[BOTTLEDUP]_
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Posted 14 November 2005 - 11:03 PM
Depends on the pistons you are running, and how far down the bore they sit. On a 202 they're usually about 0.060" below deck height.
#13
_[BOTTLEDUP]_
_[BOTTLEDUP]_
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Posted 17 November 2005 - 07:20 PM
Stage three doesn't mean jack shit... Its a term left over from the 60s, like 3/4 race, whatever the farg that is...
#14
Stedz_lc
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Posted 17 November 2005 - 08:22 PM
ADd some stage three head work hehehe that stuff cracks me up
U want a lumpy idle take a vacumn line off
U want a lumpy idle take a vacumn line off
#15
_[BOTTLEDUP]_
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Posted 17 November 2005 - 08:48 PM
don't forget to pull the choke out as well... That'll turn it into a stage 4.9087234782 with a touch of 9/16 race...But to answer your Q Sarsh no-one can tell you without a grind number off the cam
#16
Stedz_lc
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Posted 17 November 2005 - 09:48 PM
PMSL!
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