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Browsing this Thread:   1 Anonymous Users



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#11 Re: dohc a series
WhiteSedan Posted on: 2006/10/23 12:09
So the crank now has to turn 3 cams?


#12 Re: dohc a series
datgo Posted on: 2006/10/23 12:10
i admire your enthusiasm and can appreciate you wanting something that no one else has really done but seriously the theory and reality are about 10- 13 thousand dollars apart and if you dont believe me you have never really tried building a frankenstien motor of this proportion!


#13 Re: dohc a series
datto1000wagon Posted on: 2006/10/23 12:13
yes the motor would be spining three cams
and datgo this would be a very long term project and im only 15 so i got lots of time


#14 Re: dohc a series
dattoman_1000 Posted on: 2006/10/23 12:55
Im you went to all the trouble you wouldn't run a dizzy..... you'd run a crank angle sensor and coilpacks
As for the oilpump....... well...... can always drysump it

It might still work
I'll let ya know one day


#15 Re: dohc a series
beattie Posted on: 2006/10/23 13:09
Geez you have a plan to do everything dont ya Neil? Also Aaron(Pro***) has hinted of doing this project after the current turbo, QTB 120Y thing

Anyhoo, thought this was in here;
1200.com DOHC tech file


#16 Re: dohc a series
pro-240c Posted on: 2006/10/23 13:30
GA16DE head with all inlet manifolds.

no dizzy - you run coilpacks with a fuel AND ignition computer.

use an electric oil pump. they're generally a priming pump and i will use them full time, but this will shorten their lifespan a bit. not really bothered as it's a thrash car.

you need to get the crank pulley and cam pulleys as well to run the timing belt arrangement. that setup is a bit tricky - you need to use the stock pulsar belt somehow.

the A block pushrod holes need welding and re-drilling on an angle to suit the oil drain holes in the GA16 head. also the GA16 head needs the same holes welded and drilled to match.

the water galleries also need some work (mainly filling and reworking).

all the head bolt holes line up (one you'll have to drill out an extra 1.5mm in


#17 Re: dohc a series
Nissan4Eva Posted on: 2006/10/23 22:43
i've been doing the Vaux Head conversion got the head to bolt unto the A15 block,76mm bore is the smallest you can go with this head beacuse of valves.Next two big things to do would be the oil n water passages.

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#18 Re: dohc a series
cheater_5 Posted on: 2006/10/24 0:33
wooooooo thats nuts. looks totally wierd with the new teck head onto old teck aseries.
how come we havnt heard about yours before.... or have we?


#19 Re: dohc a series
A14force Posted on: 2006/10/24 6:35
There was quite lengthy thread about this ages ago.
Did you say you had the valves opening and closing?


#20 Re: dohc a series
datto1000wagon Posted on: 2006/10/24 7:00
ok im going to try the b6 head conversion i will be going to the wrekers to see if they have one sometime during the week if they do i will see what needs to be done to have it bolted up if it bolts on i will post up pics



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