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ozconnection last won the day on May 9 2015

ozconnection had the most liked content!

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About ozconnection

  • Rank
    HybridZ Supporter
  • Birthday 12/14/1965

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  • Location
    Sydney, Australia
  • Interests
    L Series engines and Nissan Cedrics

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  1. Just paid for the bellhousing BUT.....how does the rest of the gearbox attach to the cast bellhousing...I didn't catch that bit.
  2. Ah Ha....I thought I might find you here..You're 'always here' lol or so it says. I will go through this thread and it will possibly answer some if not all the questions I sent to you via PM on Facebook.
  3. Hi, A general question. As the title suggests, what spark plugs do/can I use when running the Ford DG508 ignition coils? I had read elsewhere that a guy had converted his car to COP ignition but had encountered problems with a random backfire/misfire. A friend of his who was running a similar setup said he had encountered the same problem and had fixed it by selecting resistor type spark plugs. Now both gentlemen have engines that run without the backfire/misfire problem. Before I get my new motor up and running, I was wondering if the Ford coils are spark plug specific? If so
  4. Well, this little Thompson Performance plate makes a difference. It's the first real attempt at improving the accelerator pump discharge for what seems like forever. I had to run a Reo (50cc/10 pump shots) pump through a standard #31 nozzle to get the balance I needed between volume and duration of fuel being injected into my Clifford manifold (large plenum volume). It ran well, with no stumble but the raw fuel droplets needed to broken up a bit better in my opinion to get a crisper throttle response. The fan effect seen in the video of fuel running off the plate makes a noticeable difference
  5. An old thread, perhaps a new vision. The factory Nissan PCV valve flows enough air to change the idle afr's by two whole numbers on my innovate wb. This is too much "un-metered" air entering into the intake manifold. I added an appropriately sized ball valve to reduce but not completely stop the flow of these gasses back into the intake manifold. You'll be surprised how little opening there is on the valve , that it still evacuates the engine of blowby gasses and what effect it has on the idle on my L26. Now, at idle, the Holley has
  6. Hi BJSZED, Thanks for your input man!. On the Clifford manifold, the PCV is positioned exactly behind the plenum divider in the manifold so that three cylinders receive half the gasses, the other three receive the rest...make sense? Ported vacuum signals are not used for this setup. At the moment the distributor is locked at 30 degrees. The throttle body configuration is setup on my track car so it really doesn't really need an advance curve for the track as it rarely ever drops the revs below 3.5K rpm Having said that, my next round of modifications will include a bala
  7. Playing around with throttle bodies.....
  8. L28 87.5mm bore 79mm stroke 2850cc's JE 300zxtt forged pistons, custom rods RSR 1.72 Australian delivered late model E88 head. CNC ported flowed stainless 44mm/35mm valves 300 degree 590 lift camshaft 10 to 1 compression 98 octane unleaded petrol (pump grade) Clifford 6=8 four barrel manifold Injection Perfection 1000cfm four barrel throttle body 280 zx distributor locked @ 30 degrees MS2 3.5.7 Ebay generic headers 3 inch pipe Varex muffler It's that induction man.......that's where the power is. (oh, and the head,,,and cam. lol)
  9. Very interesting. There is actually less power from 4500 to 6500 but where the power dived before just after 6.5K rpm, the new graph keeps pulling the numbers. Probably advancing the cam timing a little and maybe a little richer would pick that difference back up The ignition timing was the same for both runs, so nothing to be gained or lost there. Compression is up a smidge with the MLS gasket (1mm vs 1.2)
  10. Yep, same dyno. That's an AFR measurement. Only power is displayed. Sorry for pointing that out Mr Dee I have the old dyno sheet too, will have a look and compare. thanks!
  11. There's been some mods to the engine since this last post and there is a new dyno graph to go with it. Changes have been a Kameari 1mm MLS head gasket, twin idler gear setup and a Nismo balancer Wanted to use the Megasquirt ignition timing option but ended up just locking the advance in the ZX dizzy and timing it to 30 degrees. I had also planned on upgrading the headers to a beautiful tuned length item but there were time constraints and they're not on the engine.....yet! The headers on there are generic, locally produced non tuned length somethings with a section of 2
  12. I'd need to SEE a head with a 'burned out liner' from turbo use, because the ZXT I got had a P79 on the ET Bottom End, and the owner told me he replaced the head at around 150K when the original turbo went out and they found cracks in the P90 that was on it. He put a USED P79 on it and when I bought it there was 225K on it and those liners looked JUST FINE...and were in there same as any other. So in at least 75K of turbocharged application on a P79 that started with 150K, those liners were holding up darned good. Oh, I seem to remember that you said Nissan would never ever use a linered
  13. I would not deviate from 'normal' assembly of the valve train. Be patient and source the correct lash pads. Your engine will be RELIABLY built with the correct pads and you'll be happy and confident that you made the right decision.
  14. That's very interesting and thought provoking. Good story Tony.
  15. I just run the hoses as i found them routed on the original factory L20A ET. Like you said again Tony, if it works....! I like that other water to oil cooler, should be easier to find if it's from a later model Nissan. Someone needs to grab one and see if it can fit our engines.
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