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L18_B310
 Post subject: Most suitable cam
PostPosted: Thu Feb 02, 2006 6:29 pm 
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Location: Mount Gambier, South australia
Gday, im trying to find out which cam would be most suited to the mods im doing to my L18.

The mods are:

Head: New valve guides and seats, standard 42mm intake and 35mm exhaust valves, match extend port to 35mm intake ports (same as manifold.)

Carbs: Twin 45mm webers, 34mm chokes.

Block: Standard bottom end, block had been decked, new rings & bearings.

From the information I have there, what would be the most suitable cam for my engine specs.

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Tristan.

Daily - '85 XF Falcon Spak Wagon (that I don't care about)

On going project - '79 L18 Powered Datsun Sunny, Twin 45's
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thehelix112
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PostPosted: Thu Feb 02, 2006 6:49 pm 
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Location: Melbourne, Vic
34mm chokes, I would GUESS (blindly) thats maybe a 70 or 72 works cam would be decent?

Dave

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USA Project: 1978 280Z, minor suspension upgrades, VK56DE conversion in progress. SOLD
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AUS Project: 1972 1600, 3200km old S15 SR20DET, ground up rebuild. SOLD
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jdmdatsun510
 Post subject:
PostPosted: Thu Feb 02, 2006 6:55 pm 
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Location: Adelaide...On the Road again !
thehelix112 wrote:
34mm chokes, I would GUESS (blindly) thats maybe a 70 or 72 works cam would be decent?

Dave
I'd say a 72 works cam for sure.
I ran a 72 works with twin 44mm SU's with great results.

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1974 P610/180B SSS (parts car)
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thehelix112
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PostPosted: Thu Feb 02, 2006 7:01 pm 
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Location: Melbourne, Vic
Yeah but 34mm chokes. :(

Dave

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USA Daily: 2014 Nissan GT-R, very minor modifications for the track
USA Project: 1978 280Z, minor suspension upgrades, VK56DE conversion in progress. SOLD
AUS Race Car: 1973 240Z, L28ET, Autronic, GT35R. SOLD
AUS Project: 1972 1600, 3200km old S15 SR20DET, ground up rebuild. SOLD
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L18_B310
 Post subject:
PostPosted: Thu Feb 02, 2006 8:44 pm 
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Location: Mount Gambier, South australia
what is the power range of a 72 degree cam? And who makes decent ones?

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Tristan.

Daily - '85 XF Falcon Spak Wagon (that I don't care about)

On going project - '79 L18 Powered Datsun Sunny, Twin 45's
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Angle
 Post subject:
PostPosted: Thu Feb 02, 2006 10:01 pm 
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thehelix112 wrote:
Yeah but 34mm chokes. :(

Dave
4x34 >> 2x44 ...
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jdmdatsun510
 Post subject:
PostPosted: Fri Feb 03, 2006 12:35 am 
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Location: Adelaide...On the Road again !
Angle wrote:
thehelix112 wrote:
Yeah but 34mm chokes. :(

Dave
4x34 >> 2x44 ...
Exactly.

So 34mm chokes would be more than ample.
Not the best but ample.
Atleast they are 45DCOE's and not 40DCOE's.

Wade make a 72 works copy.
Which is what I have used.

I should add, I got good results with the 72 and the 44mm SU's with significant porting done to the inlets.

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1975 P610/180B SSS ex PRC3 Rally car (parts car)
1974 P610/180B SSS (parts car)
1972 P510/1600 Currently sitting untouched
1977 P610/180B Wagon Daily Driver
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1600dave
 Post subject:
PostPosted: Fri Feb 03, 2006 12:40 am 
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Location: Bendigo
Wade #487 is the works 72 cam. picked mine up with lash pads for 50 bux from a swap meet!

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jdmdatsun510
 Post subject:
PostPosted: Sat Feb 04, 2006 9:02 am 
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Location: Adelaide...On the Road again !
1600dave wrote:
Wade #487 is the works 72 cam. picked mine up with lash pads for 50 bux from a swap meet!
BARGAIN !!!!!! 8)

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1975 P610/180B SSS ex PRC3 Rally car (parts car)
1974 P610/180B SSS (parts car)
1972 P510/1600 Currently sitting untouched
1977 P610/180B Wagon Daily Driver
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