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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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Home away from home  
Joined:
2002/3/22 14:50
From St. Louis, MO USA
Group:
Registered Users
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NEW set of MANLEY 39mm/33mm RACE VALVES, KEEPERS, LASH CAPS & GUIDES.
(4) new 39mm intake and (4) new 33mm exhaust, built with 7mm stems, plus (16) keepers, (8) lash caps and (8) valve guides. The keeper groove has not been cut, so your machine shop can set them up for you.
Custom valves cost about $800 usd. I will take $450 for everything above. [Do I need to post a picture?]
CHROME MOLY 3-PC PUSHRODS: $45 usd + $15 shipping worldwide.
(8 + 1 spare) chrome moly pushrods with 5.805" effective length. [Effective length is the overall length of the pushrod, minus the depth of the cup.]
(8) chrome moly pushrods, 6.20" effective length.
(8) chrome moly pushrods, 6.575" effective length.
Peter
e-mail is best PeterZekert"at"Juno.com
Posted on: 2009/12/3 21:54
Edited by pjz on 2009/12/3 22:42:18
Edited by pjz on 2009/12/3 22:42:50
Edited by pjz on 2009/12/3 23:29:00
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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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Home away from home Joined:
2002/3/22 14:50
From St. Louis, MO USA
Group:
Registered Users
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USED
Posted on: 2009/12/3 19:38
Edited by pjz on 2009/12/3 20:43:00
Edited by pjz on 2009/12/4 20:13:38
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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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No life (a.k.a. DattoMaster)  
Joined:
2005/8/27 15:36
From Townsville, Qld
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Registered Users
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When your using a cam with more aggressive characteristics than a stock cam you should use stronger valvesprings (ideally mated to the maximum valve lift of the cam and maximum rpm you want to run) to aviod having the valves floating at higher RPMs. Valve float is one step away from bending the valves and possibly doing more damage to the rest of the motor. Pretty sure I'm on the right track with that.
Posted on: 2009/12/3 10:33
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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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Just can't stay away  Joined:
2007/11/29 6:04
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can i use this cam on my stock engine i mean all stock internal ... is there any efect using this ( sry noob question )
Posted on: 2009/12/3 9:58
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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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No life (a.k.a. DattoMaster) Joined:
2005/8/27 15:36
From Townsville, Qld
Group:
Registered Users
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yeah there's nothing worse than having mooshy valve springs that aren't rated for the lift your cam
Posted on: 2009/12/3 2:54
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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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Home away from home Joined:
2002/3/22 14:50
From St. Louis, MO USA
Group:
Registered Users
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These springs are made to go 9000-9500 rpm.
To raise the rpms, we first added a larger oil pump. Next we found that 9000 rpm would require worked rods with better rod bolts (or at least new rod bolts all of the time). When we switched to aftermarket rods we could go to 9500-10,000.
Next we found the valve train weaknesses. Make sure to replace the rocker threads with steel inserts. By using rocker tower studs; or going to 10mm bolts, 10,000 was fine with the A12 (9200-9400 with the A14 and A15).
These springs will safely go 8500 rpm forever, 9200 rpm for a few seasons.
Posted on: 2009/12/3 2:24
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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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No life (a.k.a. DattoMaster) 
Joined:
2009/4/30 7:57
From Adelaide
Group:
Registered Users
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Hello,
Excuse my ignorance, how many rpm are the dual valve springs you have here good for? I have read that with the right springs you can push the A Series to 8500rpm. I think somewhere else I read the rocker seperating springs need collets or bushes to go this far. I like the idea of 8500rpm max.
Posted on: 2009/12/3 1:42
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Re: Race pistons, rods, cams, dual springs, retainers.... for A12/13/14/15. |
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Home away from home Joined:
2002/3/22 14:50
From St. Louis, MO USA
Group:
Registered Users
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Paul, Good to here you got your bits.
Here are photos of the dual spring and retainer sets. They will fit into our $15 worldwide shipping box. Too bad everything won't fit in the small box. $150 USD per set plus $15 shipping worldwide.
1.25" OD with Datsun Comp blue aluminum retainers. (Set has very little use.)
1.14" OD with lightweight stainless retainers and aluminum spring bases.
Posted on: 2009/12/2 3:33
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Re: Race pistons, rods, cams for A12/13/14/15. |
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Quite a regular  Joined:
2009/10/28 0:13
Group:
Registered Users
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Gidday Peter,
Carbies turned up mate ,
Thank you
Cheers Paul.....
Posted on: 2009/12/2 0:12
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_________________
1200 UTE(12DAT) 12A Bridge Port - 5spd - Weber
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Re: Race pistons, rods, cams for A12/13/14/15. |
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No life (a.k.a. DattoMaster) Joined:
2002/8/11 8:22
From Perth
Group:
Registered Users
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So much flash in that pic I can barely see the JE pistons
Are they valve recessed ?
And whats the approx comp ratio
Posted on: 2009/11/30 2:16
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