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z240

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Posts posted by z240

    Sound Deadening Material For Floor

    in Interior

    Posted · Edited by z240

    Sound deadening is a complex problem. To simplify, it is often covered in two broad areas. High frequency and low frequency. The tar like mats, who ever makes them, are heavy for a reason, are stuck directly to bare steel panels and damp high frequencies. Adding mass lowers the reasonant frequency of the material. Your door when struck goes from tinny (hi freq) to a thud or thunk (low frequency).

     

    The volume of the total noise getting through the panel is reduced some what but not usually enough. You have lowered the frequency of the sound that gets through, but how do you reduce the magnitude of that noise?

     

    You then need to add a thick sound absorbing pad for lack of a better term, to attenuate the low frequencies that road noise, exhaust and such make. This is a second product you basically putUIKeyInputDownArrow under your rugs and on the firewall to do that part of the job. You will find these two components in any modern car. That and whole bunch of material engineering and isolation techniques that keep the outside noises away from the cabin in the first place. Something 50 year old cars lack for some reason....

     

    I use the b-quiet product. b-quiet.com. They publish their attenuation specs and comparisons. Price is right too. No smell, good adhesion, good performance.

     

    Heat attenuation is whole 'nother ball of wax. Doing something reflective around the exhaust on the OUTSIDE is your best level 1 defence. The sound deadening products you're applying have a variety of R-Values and effectiveness.

    compressor mount for 240z?

    in Miscellaneous Tech

    Posted

    Vintage air sells a nice laser cut generic bracket pair that makes a fabricated bracket as easy as possible, but it still requires welding and cutting a plate to fit your block and position the pulley correctly.

     

    The L series brackets on the 280's and ZX's is anothe option but will still require considerable "manipulation"

     

    Here is the bracket I made for the 510.

     

    post-2004-0-88964600-1502212183_thumb.jpg

     

    This the VA catalog page with the bracket.

     

    http://www.vintageair.com/2017%20Catalog/2017%20Vintage%20Air%20Catalog%2071.pdf

    all electronic custom dash

    in S130 Series - 280ZX

    Posted · Edited by z240

    I don't really understand your question here?

     

    If your looking for a speed sender i'm quite sure the GM style electrons sender will screw onto the early nissan transmissions.

    This is what you want.

    Although the nissan sender threads are something like M22x1.5, it is probably close enough to thread on. 18 TPI is a bit fine. As long as it goes on well enough to seal. I only checked the threads. Definitely 1.5 TPmm.

    Performance/Modern cooling system in old cars

    in Cooling Systems

    Posted

    I run a 300ZX 70 AMP Mitsubishi alternator. Single belt and bolts right on to the factory bracket. Even uses the same belt. . 1985 or 1986 300ZX NA comes with a single belt pulley. New small frame style that puts out more amperage at idle than the early Large frame alternators. That's a big plus. For that reason alone I would switch to the later mid-80's small frame alternators. 

     

    Rock Auto has the AC Delco brand ( 331674 ) on for $60.79 plus $30.00 core. AC Delco makes good quality parts. 

     

    If you want more you can get an alternator from a 1986 Maxima. 80 amp and 90 amp, Mitsubishi style. But you will have to swap out pulleys as it comes with a serpentine 4 groove pulley. Single groove pulley bolts right on.

     

    For the Mitsubishi style alternator you will have to change the two prong connector at the back of the alternator. It uses a Ford? Mazda style. These can be found at the wrecking yard on various mid 90's Ford vehicles and Mazda's ( Miata. Mazda Protege, Mini Vans etc etc ) .

     

    Then you just have to change the wiring to suite the Internal V/Reg. Atlantic Z and other sites have articles on how to cahnge the wiring. 

     

    A

    That's part number is 3341674

    Nismo Electric Fuel Pump!?!?

    in Fuel Delivery

    Posted · Edited by z240

    Looks like the stock electric that dealers put in to fight the fuel vaporization problem. If it's working, it has an internal filter that should be cleaned/replaced at the very least. It's age suggest it really should be replaced.

     

    The Nismo pump and the commonly available Faucet Gold Flo pumps ( http://www.facet-purolator.com/gold-flo.php ) are all the same external style, but would like to see a review of what is inside them and how/where they are made to understand is the Nismo price is justified.

     

    I run the Faucet 2.5-4 psi FEP60SV pumps in my Z and dime and like them noise wise, and the fact that they have an internal filter. Been reliable so far.

    Voltage Drop issue HELP!

    in Trouble Shooting / General Engine

    Posted

    Simplify. Remove all ignition wiring to the coil. Disconnect the alternator. Run the engine with just the battery hooked up the coil + with a new wire. (Assuming you have points, you have to have that wire from coil - to the points too).

     

    Watch the voltage on the battery now. If its going crazy still, its the coil. If not, start adding things back until you ID the issue.

    wtb 240z driver side seat belt

    in Parts Wanted

    Posted · Edited by z240

    We need to know what year 240 you have. Early ones don't have the retractor reel, and can't fit a retractor wheel from a newer one (no pocket in the floor).

     

    I generally don't recommend using old belts. Look into upgrades from places like Seat Belt Planet.

    280Z Window Regulator

    in Interior

    Posted

    The spring pressure is easy to overcome, it's easy to restart the gears meshing again. Now whether you can do in the door depends on your dexterity and patience. Go play, you'll figure it out. What year Z are we working on? The 77/78 regulators and window track systems are unique, and the advice will vary about getting the window out if you need to do that.

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