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HybridZ

Tony D

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Posts posted by Tony D

  1. Rebuilt engine with new super doopet racing pump springs? Stack of shims in there locking it up?

     

    I'm with the last, this is easily checked without shotgunning a pump at it and possibly causing more issues. Sounds like the pump is fine... Why replace it?

  2. I just shipped my Mikuni Manifold off and was reminded that I had barbs with a FULL 1/4" inside diameter hole in them (and used 5/15" fuel line), which fit on the stock Mikuni 1/8 NPT tapped holes in the manifold. It went to a -6 runner, but it will now be a -8 to better modulate pulsation for installation of the MAP sensor.

  3. "Other than that, the 78 door will attach to the 74 hinges and fit in the opening. Been done many times."

     

    Do you have any photos of this conversion? I swear the inner panel of the 78 door is about 1.5-2" longer as it's a captive internal latch that the striker goes into, as opposed to pre-6/76 doors which are 'shorter' in this area due to having an exposed latch with the catchplate on the B-Pillar.

     

    :blink:

  4. Yep, the late S31 series cars (75-78 280Z's) weren't light. The 79 Standard ZX was actually a lighter car!

    But the weight got packed on fast in the ZX.

     

    My 1976 FAIRLADY Z 2/2 weighed in at SanAntonio Dragway with 255# me inside it at 2695#, putting the car at 2440# without me and a full tank of gasoline.

     

    If it's 2965# (as some have suggested) then I have a 200+ RWHP Stock L28 because the car was running all night long (26 passes in all) at 15.50-15.60 at 88-89+ mph... :blink:

  5. BTW, an 83 ZXT can be quite a pig, over 3000# depending on drivers weight...

    A 73 240 is not the lightest but with some early model doors and suitably bumpered, 2400 is pretty easy to do.

    My Full-Weight 73 240Z was a pig with my swinish countenance in it, and 100+ in the 1/4 was not difficult at all without an intercooler and some basic old-school tweaks.

    The ZXT the donor engine came from seemed to struggle to break 80-85 before the swap. The 240 was alive compared to the ZXT. and it came further alive once I got the 3.70 into it later on... The 240 still had the 3.36 gears at that time!

  6. My stock 260ZT won't reach temp idling, period. I have to drive it to get a tempersture above around 150. Idling in the driveway with the Nissan CHT, it won't get Ho 160 unless I put some sort of load on the car. Drive half a mile down the road and I'm regulated nicely between 165-170.

     

    But idling? Sits at 150-153 forever on am 80-05 degree day. Likely lower colder...

     

    Heater on "Heat" with no fan will bump the nber somewhat.

     

    That's reading it on the MS Datalogger and Megatune.

  7. Several things:

    Yes, summer and winter thermostat.

    The temp should NOT go to 210 in Yhe summer if you have sufficient rejection on the radiator. If I can tow a trailer uphill with a three core at 85mph in 115-120F Palm Springs Desert Heat, and keep ROCK STEADY temps WITHOUT the 5/6 mod...you should have no issues at all! Remember the mod DECREASES the differential between front and back of the engine, it doesn't completely eliminate it. If you're 210 at the thermostat, you're 215-220 at Thr back of the head. That can still cause issues if you don't have at least a 16# radiator cap.

     

    Did you route the 5/6 mod to be controlled by the thermostat, or put it to the upper portion of the thermostat, bypassing it? JeffP made his block for the wYet from that point to come either spot by changing the thermostat position-there was an issue when we didn't have them controlled by the thermostat.

     

    This post would be a good addition to the sticky on the mod in the FAQ/Stickies forum.

  8. Unless you have your own dedicated container, I'd seriously recommend having the parts physically ON (as in installed) the car when you ship it for both Revenue Bureau scrutiny, and reducing the chance of nice new parts "evaporating" during shipment.

     

    If it's RORO, have the car complete when you drop it at the shipment point.

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