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  • How to read turbo maps...

    How to read turbo maps...

    There have been a couple of guys who wanted to know how to read a compressor map. Hopefully, I haven't made any mistakes this time (unlike the last) and this will prove to be useful to you in your understanding of a compressor map. Reading a turbo map isn't as difficult as it looks. The map displays 4 key pieces of information. A. It displays the pumping efficiency of the compressor (meaning the amount of actual air that it pumps in contrast to the amount of heat that's created while wasting energy) B. The physical amount of air that it can move in pounds per min (just like it says, how much air per/ min) C. The pressure ratio of the air being pumped (that is, the ratio of pressure that it is capable of that pumping in contrast to the ...
    See more | Go to post

  • Tire/ wheel info

    Tire/ wheel info

    General Tire/Wheel info:
    Tire Calc: http://www.miata.net/garage/tirecalc.html
    Alt Tire Calc: http://www.1010tires.com/TireSizeCal...?action=submit
    Tire Info: http://www.discounttiredirect.com/di...foTireMath.jsp 5x115 The 1ST # is the number of lugs. The 2ND is the spacing between the lugs, measuring center point of the lug to the next lug. have heard that 5x114.3 from something like a mustage will work. Our wheels have an offset of +40. Offset is the dist from the center line of the wheel to where the wheel mounts to a hub. A pos offset has the hub/lug toward the outside (away from car) of the wheel and normally found on FWD cars. Neg offset is the opposite. 225/55-16 The first number, 225 is the dist from one edge to the other of the tread patch in mm. 55 is the percent of the first # giving the side wall height. The last # 16 is the dia in inchs of the wheel for the tire. Following are for 95-99 Lumina & Monte Carlo: Wheels: all are 5-115mm bolt unless specified Factory alloy's 95-99 : [16" x 6.5" +40mm ] 35-38 lbs w/ tire Other Facotry wheels: Monte's95-96; Monte/LTZ 97-99 Lumina91-99 Grand Prix91-96 i know the later spiral ones fit. they were like 97-99 Olds Cutlass supreme 9?-96 ( not sure when they originated i think around 91 92) Bonneville 5 Spokes f...
    See more | Go to post

  • Cruise Control Switch Repair

    Cruise Control Switch Repair

    It seems that ALL the cruise control stalks you find at the JY nowadays are non-working. The Cruise switch doesn't work. Tired of paying $40 for a new stalk, I decided to dismantle and attempt repairs to what I had.

    The stalk is glued together and there will be some minor cosmetic damage during the dis-assembly, but if you file down the burs before gluing it back together it is not serious.

    This is the stalk I am going to repair.
    [ATTACH=CONFIG]5979[/ATTACH]

    First, separate it at the joint. I was able to grip a pair of wire stripper pliers into the joint and force the stalk apart. Slide out the switch by feeding the cable into the shaft.
    [ATTACH=CONFIG]5980[/ATTACH] Pull off the outer end of the stalk housing. The SET button ...
    See more | Go to post

  • V5 A/C compressor tear down / re-seal...

    V5 A/C compressor tear down / re-seal...

    Pictures of tear down and re-seal of Harrison V5 air conditioning compressor. These are very common on the 60V6 engines. They are very costly as a re-manufactured unit. The parts to re-seal them are about $30.

    I did this write-up for another forum but figured it would have interest here.

    I started with this unit. I had it on my 1972 Chevy Nova until it started leaking around the housing o-rings. It still cooled fine, it would just lose freon over about a 2 month period. It will go on a 2.8 carburetor engine in an older a-body car. I will be changing the pulley to a vee-belt pulley.
    [ATTACH=CONFIG]5919[/ATTACH]

    First, remove shaft nut and install compressor clutch hub puller.
    [ATTACH=CONFIG]5920[/ATTACH]

    Remove clutch hub, making sure not to lose the key!
    [ATTACH=CONFIG]5921[/ATTACH]

    Remove the snap ring that retains the pulley to the compressor.
    [ATTACH=CONFIG]5922[/ATTACH]

    Install a puller, making sure the puller bolt ONLY presses on the neck of the compressor, NOT the shaft. The socket sits on the neck, protecting the shaft.
    [ATTACH=CONFIG]5923[/ATTACH]

    The pulley off. I will be changing this out for a vee-belt pulley.
    [ATTACH=CONFIG]5924[/ATTACH]

    Now use the puller on the clutch magnet.
    [ATTACH=CONFIG]5925[/ATTACH]

    OFF with the clutch magnet!
    [ATTACH=CONFIG]5926[/ATTACH]

    Nasty looking. Will need to clean this SPOTLESSLY clean before opening it.
    [ATTACH=CONFIG]5927[/ATTACH]

    After a few minutes with the Purple Soap and pressure washer, it's all clean!
    [ATTACH=CONFIG]5928[/ATTACH]

    Remove the external parts. Take out the compensating valve and the oil plug.
    [ATTACH=CONFIG]5929[/ATTACH] Remove the bolts that hold the compressor together. ...
    See more | Go to post

  • WOT-Tech pistons and the CR Calculator

    WOT-Tech pistons and the CR Calculator

    With all of the different top-end swaps and bottom-end builds out there, I was talking to Ben at WOT-Tech about the Diamond pistons and how different setups would affect the compression ratios (CR) of the pistons he was offering. I wanted to pass this piston information on to the users so that they could then determine what their final CR would be with any setup. Due to marginal sales, WOT-Tech has decided to no longer list or stock specific CR pistons anymore. What does this mean to everyone? It means you can tailor the pistons to suit your specific application, no matter what components you are using.
    ...
    See more | Go to post

  • Cheap Strut Tower for 88-96 Grand Prix

    Cheap Strut Tower for 88-96 Grand Prix

    I found a cheap way to sure up the rear on 88 to 96 Grand Prix's. The front strut tower braces from 88-93 Cadillac De Ville will fit with slight mods. I think most of the full size gm cars from this time period have the same size brace. First take the ends off, it is two bolts for each side. I used a Dremel with a pack of cutting wheels from Walmart. I cut squares the length of the cutting wheels around the holes, meaning the size pre-use (they get smaller as you use them). Once you are done with that take it to Autoz...
    See more | Go to post

  • How to Re-New Your Cracked Dashboard

    How to Re-New Your Cracked Dashboard

    I searched the forum for any postings on this subject and drew a blank. Although this fix is related to any F-Body, I wanted to share it as a possible solution for anyone replacing their dried, crusty or shattered stock dashboard cover with a durable new cover and one that includes an inexpensive way to solve the lack of vent covers that most of these covers present with. Here is what you will need to do the job correctly and fast, too....:

    To avoid "a thousand words" that follow... here are the "Cliff Notes" images of this entire job ...

    http://s557.photobucket.com/albums/s...CAMARO%20Z-28/ (1) Some kind of quality plastic veneer repl...
    See more | Go to post

  • No Description of Part

    We're sorry, this part currently has no description to go along with it. We are working on trying to get as much information as available for each part as well can, but it will take some time.


    ...
    See more | Go to post

  • Air Conditioning System Replacement Tips

    Air Conditioning System Replacement Tips

    This kind of repair involves more than just an R&R of a damaged compressor, since the old refrigerant must be removed from the system and stored in a proper container. Also... once the new compressor is installed, the system MUST have a near perfect vacuum established or the A/C will not ever cool properly. To avoid any woes (Whoas!) for your A/C repair, here are some suggestions for the fix that are "The Universal Baker's Dozen of Auto A/C Repair" : 1. Change the Accumulator at the same time the Compressor is swapped out. The reason is because the PAG oil that lubricates the system passes through the accumulator along with the return line refrig...
    See more | Go to post

  • Testing and Cleaning your Digital EGR

    Testing and Cleaning your Digital EGR

    OK, now for a somewhat fun article: cleaning/testing your Exhaust Gas Recirculation valve, or EGR. Let's start with some engine theory. The EGR exists primarily to reduce NoX emissions by recirculating exhaust back into the intake system, where it displaces oxygen, one of the key components of combustion (thereby lowering the peak temps which prevents nitrogen and oxygen from combining). There are also a few other benefits that come from EGR usage; preventing burnt exhaust valves through lowering combustion chamber temps being a major one and a debatable increase in fuel economy being a minor one. The theory of increased fuel economy is due to the ECM expecting a specific amount of EGR flow and reducing the amount of fuel injected based on assumed flow due to a lessened presence of oxygen, which requires less fuel to retain stoichiomet...
    See more | Go to post
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  • How to read turbo maps...
    Driver_10
    There have been a couple of guys who wanted to know how to read a compressor map. Hopefully, I haven't made any mistakes this time (unlike the last) and this will prove to be useful to you in your understanding of a compressor map. Reading a turbo map isn't as difficult as it looks. The map displays 4 key pieces of information. A. It displays the pumping efficiency of the compressor (meaning the amount of actual air that it pumps in contrast to the amount of heat that's created while wasting energy) B. The physical amount of air that it can move in pounds per min (just like it says, how much air per/ min) C. The pressure ratio of the air being pumped (that is, the ratio of pressure that it is capable of that pumping in contrast to the ...
    11-27-2011, 10:01 PM
  • Tire/ wheel info
    z34phoenix
    General Tire/Wheel info:
    Tire Calc: http://www.miata.net/garage/tirecalc.html
    Alt Tire Calc: http://www.1010tires.com/TireSizeCal...?action=submit
    Tire Info: http://www.discounttiredirect.com/di...foTireMath.jsp 5x115 The 1ST # is the number of lugs. The 2ND is the spacing between the lugs, measuring center point of the lug to the next lug. have heard that 5x114.3 from something like a mustage will work. Our wheels have an offset of +40. Offset is the dist from the center line of the wheel to where the wheel mounts to a hub. A pos offset has the hub/lug toward the outside (away from car) of the wheel and normally found on FWD cars. Neg offset is the opposite. 225/55-16 The first number, 225 is the dist from one edge to the other of the tread patch in mm. 55 is the percent of the first # giving the side wall height. The last # 16 is the dia in inchs of the wheel for the tire. Following are for 95-99 Lumina & Monte Carlo: Wheels: all are 5-115mm bolt unless specified Factory alloy's 95-99 : [16" x 6.5" +40mm ] 35-38 lbs w/ tire Other Facotry wheels: Monte's95-96; Monte/LTZ 97-99 Lumina91-99 Grand Prix91-96 i know the later spiral ones fit. they were like 97-99 Olds Cutlass supreme 9?-96 ( not sure when they originated i think around 91 92) Bonneville 5 Spokes f...
    09-10-2011, 09:58 AM
  • Cruise Control Switch Repair
    davida1_hiwaay_net
    It seems that ALL the cruise control stalks you find at the JY nowadays are non-working. The Cruise switch doesn't work. Tired of paying $40 for a new stalk, I decided to dismantle and attempt repairs to what I had.

    The stalk is glued together and there will be some minor cosmetic damage during the dis-assembly, but if you file down the burs before gluing it back together it is not serious.

    This is the stalk I am going to repair.
    [ATTACH=CONFIG]5979[/ATTACH]

    First, separate it at the joint. I was able to grip a pair of wire stripper pliers into the joint and force the stalk apart. Slide out the switch by feeding the cable into the shaft.
    [ATTACH=CONFIG]5980[/ATTACH] Pull off the outer end of the stalk housing. The SET button ...
    07-21-2011, 10:09 PM
  • V5 A/C compressor tear down / re-seal...
    davida1_hiwaay_net
    Pictures of tear down and re-seal of Harrison V5 air conditioning compressor. These are very common on the 60V6 engines. They are very costly as a re-manufactured unit. The parts to re-seal them are about $30.

    I did this write-up for another forum but figured it would have interest here.

    I started with this unit. I had it on my 1972 Chevy Nova until it started leaking around the housing o-rings. It still cooled fine, it would just lose freon over about a 2 month period. It will go on a 2.8 carburetor engine in an older a-body car. I will be changing the pulley to a vee-belt pulley.
    [ATTACH=CONFIG]5919[/ATTACH]

    First, remove shaft nut and install compressor clutch hub puller.
    [ATTACH=CONFIG]5920[/ATTACH]

    Remove clutch hub, making sure not to lose the key!
    [ATTACH=CONFIG]5921[/ATTACH]

    Remove the snap ring that retains the pulley to the compressor.
    [ATTACH=CONFIG]5922[/ATTACH]

    Install a puller, making sure the puller bolt ONLY presses on the neck of the compressor, NOT the shaft. The socket sits on the neck, protecting the shaft.
    [ATTACH=CONFIG]5923[/ATTACH]

    The pulley off. I will be changing this out for a vee-belt pulley.
    [ATTACH=CONFIG]5924[/ATTACH]

    Now use the puller on the clutch magnet.
    [ATTACH=CONFIG]5925[/ATTACH]

    OFF with the clutch magnet!
    [ATTACH=CONFIG]5926[/ATTACH]

    Nasty looking. Will need to clean this SPOTLESSLY clean before opening it.
    [ATTACH=CONFIG]5927[/ATTACH]

    After a few minutes with the Purple Soap and pressure washer, it's all clean!
    [ATTACH=CONFIG]5928[/ATTACH]

    Remove the external parts. Take out the compensating valve and the oil plug.
    [ATTACH=CONFIG]5929[/ATTACH] Remove the bolts that hold the compressor together. ...
    07-17-2011, 08:47 AM
  • WOT-Tech pistons and the CR Calculator
    bszopi
    With all of the different top-end swaps and bottom-end builds out there, I was talking to Ben at WOT-Tech about the Diamond pistons and how different setups would affect the compression ratios (CR) of the pistons he was offering. I wanted to pass this piston information on to the users so that they could then determine what their final CR would be with any setup. Due to marginal sales, WOT-Tech has decided to no longer list or stock specific CR pistons anymore. What does this mean to everyone? It means you can tailor the pistons to suit your specific application, no matter what components you are using.
    ...
    01-24-2011, 02:21 PM
  • How to Re-New Your Cracked Dashboard
    60dgrzbelow0
    I searched the forum for any postings on this subject and drew a blank. Although this fix is related to any F-Body, I wanted to share it as a possible solution for anyone replacing their dried, crusty or shattered stock dashboard cover with a durable new cover and one that includes an inexpensive way to solve the lack of vent covers that most of these covers present with. Here is what you will need to do the job correctly and fast, too....:

    To avoid "a thousand words" that follow... here are the "Cliff Notes" images of this entire job ...

    http://s557.photobucket.com/albums/s...CAMARO%20Z-28/ (1) Some kind of quality plastic veneer repl...
    01-01-2011, 10:06 PM
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