Thanx I will do the pressure and volume test from the link provided thanx and get back to you guys, the car has electronic ignition so no need to set dwell..i'll also check the plug gaps, mabye that has an effect

If I keep my foot on the gas it goes down to 4k rpm and doesn't want to pull, like i hit a wall..Im definitely going to check the fuel pressure..its still running on a mechanical pump..the fuel filter looks rather new..How do I check the mechanical pump for faults? Is there mabye a diaphragm that can tear?

Hi everybody,

I just bought myself a datsun gx, but it has a small problem, it doesn't seem to want to go past 5k rpm and then she bogs down, i tuned the carbs, synch, float level..and set the timing 7 degrees btdc..but still the same problem..could it be that it isn't getting enough fuel? Mechanical problem? Timing?

I would much appreciate some advice on this matter

thanx for the replies so far..really apreciate it..was just wondering what tool should i use on measuring the vacume and where can i buy one?

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Hi guys..its been a while since a updated my progress on those twin webers..i had loads of trouble with my webers,so i traded them for twin su's with cash differance afcourse..now my bakkie is running loads better with way better fuel consumption and response..now i'm strugling to get them tuned just right..its begins to splatter at about 4500rpm and when i go for second gear it pulls dead and splaters alot and sound like only 2 cylinders are igniting..plz if i can just get some advise from you guys on what damper oil to put in,damper oil level,spring lenght and tension,needle sizing and how to identify needle sizing,and air-fuel adjustment..or just any advice on what may be causing the problem and overal tuning steps to follow..plz help me!!

thanx for the replies guys..will post some pics when finished..anyways going to keep the bottom end stock for now to keep in budget..im selling my bike for the mods hehe love the nissan'q more hehe

Hi guys..iv'e almost got al the parts(gx head,twins,wildcat branch,still looking for cam) for my A14 twin weber project and was just wondering how the fuel consumption would be..at the moment I get 'bout 400km on a full tank with the stock carb..

I saw that my head is an h74 and my friends one is an h89 with heart shaped combusrion chamber..so definetly going to buy that one and send it in for gasflow and to fit double valve spring..can anyone mabye tell me what the valve clearance should be when fitting the new head?

I live in gauteng area..you near from me ?

I'm not sure on the head type..but it's from a 2006 nissan champ if that helps?,how can i check what head it is? ..and yes sorry they are dceo40's..only planning on spending bout' 12gran(south african rand) on the motor..but the gx head and cam sounds like a good idea..?as long as i can beat my friends with their 2.0 and 1.8 stock golfs then i'm happy