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Re: A few modification questions regarding the A12 vs. A15 |
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No life (a.k.a. DattoMaster) 
Joined: 2003/12/3 0:49
From Burbank, CA
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you never know what they'll have left, might want to buy parts as you can afford em ( had 280zx struts for over a year before i made any progress on getting them installable )
if anyone wants to help out be letting us know if any of those parts won't work on an A15, feel free.
the basic theory is that as i said most of those things are all the same.
if your headbolts are stamped 13 then they're already GX - mine are, don't think you can't get any new ones that are non GX at this point.
unless you're boosted or running high compression, the metal head gasket may be more trouble than good. -why, i think i heard they need retorquing and work best with o-rings. the short was a standard engine doesn't need a super headgasket, and it's not going to increase compression that much.
lifters... anyone want to help? I was thinking of getting the light weight ones, I didn't - funny the nismo cam needs the oversize ones not the light weight ones.
I still think the yellow terra roller rockers are a benefit to all motors, but they don't seem to be used much. If you have double valve springs you need roller rockers.
perhaps better things to think about : Overbore what is a good amount to bore? 0.0030 over is common - there are some newer technologies for piston rings that may be beneficial too! looser bearing clearances - need thicker oil and more flow ( not pressure ) but make a looser motor less friction :) oil cooler - every A series needs one, a high stress one needs a cooler, temp regulator, big filter and check valve. Port matching: the ports and gaskets may not match up very well, matching them don't hurt.
weber 32/36: it's a good upgrade, but there can be complications { I miss that first week, the thing made such a noise it scared pedestrians on the sidewalk and made my neighbors complain about a noisy datsun (though there was a mini that made things rattle in the house at the same time ) }. 1.4 L is at the very bottom of the engines this works on, you can have issues with things that won't manifest on larger motors at all. I don't have a better recommendation, it worked fairly well for me other than the running on and backfiring thing. Never had these problems after loosing the 32/36 - and the second one was worse - simply because it was 'overhauled' doesn't mean it works properly. ( what can go wrong? secondary stick open slightly and make things go crazy at idle, fuel inlet can leak, microscopic bits of crap get in and plug up excessively small jets. Vacuum leaks around 40 year old shafts. )
Posted on: 2006/12/10 18:05
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Re: A few modification questions regarding the A12 vs. A15 |
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Quite a regular 
Joined: 2005/5/15 3:44
From WI, United States
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Registered Users
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Thanks for the help. Guess I'll be placing an order come summer :D
Posted on: 2006/12/10 15:34
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Re: A few modification questions regarding the A12 vs. A15 |
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No life (a.k.a. DattoMaster) 
Joined: 2003/12/3 0:49
From Burbank, CA
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Registered Users
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i'll reply here... Yes they're legit, it's a nissan dealership in washington. I guess any dealership could order the parts. the prices aren't that bad.
I've gotten several things from them, E15et euro cam, not for this... Light weight crank pulley, 1 of 2 swaybar link hardwares.
Posted on: 2006/12/10 15:21
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_________________
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Re: A few modification questions regarding the A12 vs. A15 |
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Quite a regular 
Joined: 2005/5/15 3:44
From WI, United States
Group:
Registered Users
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Thanks for the help :) I've had the metal gasket, 9+1 GX head bolts, lifters, cam, and header+gasket picked out for a while now.
So, you've used this place before? Happy with the customer service? Ive' got a thread going at the Classic Datsun section of nissanforums about them...looking for people's experiences on customer service, etc.
Posted on: 2006/12/10 15:16
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Re: A few modification questions regarding the A12 vs. A15 |
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No life (a.k.a. DattoMaster) 
Joined: 2003/12/3 0:49
From Burbank, CA
Group:
Registered Users
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all the pats i listed were available for the A15.
most parts are interchangeable. ( parts not interchangable as well, pistons, cranks, con rods. and things for A12 - not A12A I think the A12A,A14,A15 share most parts other than those ...)
more of an issue is that they tend to be vague about how many of the items you are getting, like sway bar link hardware.
that list is kind of a reference.
they expect you to know the application, those are race parts.
interesting they show a crank pulley for the 1200, but not the 210, either i got the last one for the 210, or i'm creative.
Posted on: 2006/12/10 15:12
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_________________
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Re: A few modification questions regarding the A12 vs. A15 |
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Quite a regular 
Joined: 2005/5/15 3:44
From WI, United States
Group:
Registered Users
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If you go to the 'other' Datsun forum, you'll see I've got a thread going about Nismoparts ;)
Part of my issue with them is that their site is jank as can be, and they don't mention what parts are meant to fit what A-series motor. That nismoparts site is part of why I started this thread...I think most of that stuff they have listed is meant for A12s, and I don't have one. I'm not sure if all that will fit.
Posted on: 2006/12/10 14:53
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Re: A few modification questions regarding the A12 vs. A15 |
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No life (a.k.a. DattoMaster) 
Joined: 2003/12/3 0:49
From Burbank, CA
Group:
Registered Users
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in AU there are some nice roller rockers from "Yella Terra" i want a set, they require proper pushrods. nismoparts.com still has: super expensive oil pan, for what it costs get an accu-sump. head gaskets - composition and metal - $76 Nismo Race Cam #1 - $190 light weight and oversize lifters Headers - 1200's use 1 and b210,210,310 use another - $254 you'll need the special gasket, and they may need work done if you're not using a particular intake. the #'s for just about every proven A series cam are on the internet, so you can get one ground. you may need a donor cam. Don't get a custom cam unless the guy speccing it has a wall of datsun racing trophies.
Posted on: 2006/12/10 14:51
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_________________
|||\ 81 KPB310 /|||
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Re: A few modification questions regarding the A12 vs. A15 |
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Quite a regular 
Joined: 2005/5/15 3:44
From WI, United States
Group:
Registered Users
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I'm just paranoid ;)
Is there any company out there doing cams and lifters for the A-series motors? Or am I best off going for a custom grind at a shop? I'm thinking of getting a twin-carb setup going, but I might just skip it and just run a 32/36 and the stock cam if I can't find anything.
This engine is due for a rebuild anyway...metal in the drained oil :( Which is why I've been trying to hunt down stuff like upgraded head gasket stuff, cam, etc. If I can handle that while it's being rebuilt, that'd be good.
One more thing: headers. Swappable between the A-series mills? Any recommendations on a good A-series header?
Posted on: 2006/12/10 14:40
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Re: A few modification questions regarding the A12 vs. A15 |
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No life (a.k.a. DattoMaster) 
Joined: 2003/12/3 0:49
From Burbank, CA
Group:
Registered Users
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there's probably no benefit to using a metal one if you're not doing something extreme.
cams? those are fairly easy... you might still be able to get a nismo cam even.
Posted on: 2006/12/10 14:35
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_________________
|||\ 81 KPB310 /|||
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Re: A few modification questions regarding the A12 vs. A15 |
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Quite a regular 
Joined: 2005/5/15 3:44
From WI, United States
Group:
Registered Users
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The engine in my car is currently a stock A15, and I plan to change that. I've been trying to find a cam for it...minimal success. It appears that the head bolts are the same. I haven't had much luck finding a metal headgasket either. My A15 is on it's original 25 year old headgasket and that worries me...I'd like to just upgrade it to a thinner metal one.
Posted on: 2006/12/10 14:31
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