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Browsing this Thread:
1 Anonymous Users
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Re: a15 head mods |
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Home away from home  
Joined:
2007/9/8 14:27
From South Africa
Group:
Registered Users
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Ye no kidding dodgeman,
Youll probably loose power with all those mods on a mild motor...
All you need to do to a A15 head is a nice port and some dual springs to make 150hp, doing massive work to the flow when your not aiming for big numbers generaly just reduces bottom end and mid range torque
Posted on: 2010/9/4 19:59
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'75 1200 B110 - 154hp Race prep A14
'97 Silvia - 600hp SR20 time attack
'07 Hilux - Tow car
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Re: a15 head mods |
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No life (a.k.a. DattoMaster)  
Joined:
2003/6/27 14:53
From Southern Tablelands N.S.W. Australia
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Registered Users
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Sounds like serious overkill for a street hack.
There are plenty of A15 powered race cars that make more than enough grunt to frighten the crap out of most people, that don't run valve sizes anywhere near that big.
Posted on: 2010/9/3 17:27
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Love your Datsun.
Treat it well.
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Re: a15 head mods |
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No life (a.k.a. DattoMaster) 
Joined:
2008/6/2 10:46
From hastings,vic
Group:
Registered Users
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its in my work ute.
daily driven
Posted on: 2010/9/2 0:25
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_________________
taking up room at home
3 now 2 1200 sedans,3 now 2 1200 coupes,3 now 2 1200 utes
1 1000 wagon,2 s13 silvia's,tranzit tray
hzj75 cruzer tray(for sale)
and allways changing
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Re: a15 head mods |
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No life (a.k.a. DattoMaster) Joined:
2008/6/2 10:46
From hastings,vic
Group:
Registered Users
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just having a play
running 40 mm dellortos and custom exhaust
Posted on: 2010/9/2 0:24
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_________________
taking up room at home
3 now 2 1200 sedans,3 now 2 1200 coupes,3 now 2 1200 utes
1 1000 wagon,2 s13 silvia's,tranzit tray
hzj75 cruzer tray(for sale)
and allways changing
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Re: a15 head mods |
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Home away from home Joined:
2007/9/8 14:27
From South Africa
Group:
Registered Users
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Thats quite serious work your doing there, what power are you after? 150hp+?
Posted on: 2010/9/1 18:57
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_________________
'75 1200 B110 - 154hp Race prep A14
'97 Silvia - 600hp SR20 time attack
'07 Hilux - Tow car
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Re: a15 head mods |
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Home away from home 
Joined:
2010/5/9 3:04
From Sydney
Group:
Registered Users
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so what are the best specs to do to an a14/15 head?? as im looking into doing my head and you guys seem pretty switched on
Posted on: 2010/9/1 14:32
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Re: a15 head mods |
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No life (a.k.a. DattoMaster) 
Joined:
2008/2/10 10:23
From sydney.nsw
Group:
Registered Users
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35mm exhaust is a major mod (offset guides) EX will hit side of bores,will need to go big bore also (79mm +). cheers
Posted on: 2010/9/1 11:16
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A.T.E RACE ENGINES: ( " AUST 1 " 2010 ) A15 GO THE DATTOS... 0412 864 741
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Re: a15 head mods |
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Home away from home 
Joined:
2008/8/2 6:41
From ACT
Group:
Registered Users
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Posted on: 2010/9/1 9:36
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_________________
Now riding dirtbikes:
Lots of A series Datto stuff for sale
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Re: a15 head mods |
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No life (a.k.a. DattoMaster) 
Joined:
2007/1/22 23:06
From East New Britain, Papua New Guinea
Group:
Registered Users
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Tomo,
Did you get my PM about the exhaust flanges? Getting a small batch made up if you are interested, please reply asap. chris
Posted on: 2010/9/1 5:41
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a15 head mods |
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No life (a.k.a. DattoMaster) Joined:
2008/6/2 10:46
From hastings,vic
Group:
Registered Users
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rebuilding oval port head to put on my
a15
going up in valve size 40mm inlet 35mm exhaust,
bigger inserts,hi porting,bigger springs
maybe angle mill the head to get plug closer
to the center, angle mill inlet manifold
to correct manifold angle and to staighten inlet tract
looking for any ideas,sugestions
thanks tommo
did someone have pics of cutup heads??
Posted on: 2010/9/1 4:36
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_________________
taking up room at home
3 now 2 1200 sedans,3 now 2 1200 coupes,3 now 2 1200 utes
1 1000 wagon,2 s13 silvia's,tranzit tray
hzj75 cruzer tray(for sale)
and allways changing
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