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  1. scgnx2

    Looking for Heater core and heater valve

    If you’re going through all the work to replace the heater core. Do yourself a big favor and buy a new one… there not expensive. Checkout Rockauto. This one fits without modifications
  2. scgnx2

    Fuel sender connector burnt ?

    Sure, those contacts are tiny. I’m guessing that they would not handle 5 or so amps per circuit. So, you’re probably exceeding that especially at 60 psi. Amperage draw is higher. That would explain the melt down as well.
  3. scgnx2

    Fuel sender connector burnt ?

    That connector melted due to high resistance through the male pin/female contact. Corrosion on the plating of the contacts or “loose” female contacts which affects the spring force on the pin. Those are common failure modes. Additionally, when using 2 pins to apply power (splitting) sounds like...
  4. scgnx2

    84/85 injector wire harness vs 86/87?

    Here’s a pic of a replacement for a 84/85
  5. scgnx2

    84/85 injector wire harness vs 86/87?

    They are not interchangeable as they have different connector setups. The 84/85 used 2 connectors while the 86/87 uses a single connector.
  6. scgnx2

    Motortrend GM Muscle Car History

    Very well written article with a lot of information on these cars. The one thing I’m wondering is on the development of the GNX. Did they actually modify or replace the cylinder heads ? I was always under the impression that they did not.
  7. scgnx2

    GN's built in Pontiac MI per day?

    Great info, Thank you. Interesting they upped the Turbo Engines to 125 builds a day. They were also setting up stock for Pontiac ASM for Grand National extensions. Which would be the 1500 Pontiac Turbo Trans Ams in 1989.
  8. scgnx2

    GN's built in Pontiac MI per day?

    If you pull the rear seat out there should be a build sheet in there. Mine was dated 10/27 which is the date of Fischer body build. Final production was done on the following day. That’s my understanding at least.
  9. scgnx2

    GREMLIN CONTINUES TO BE PRESENT MAKING DRIVING UNSAFE

    Use your scan tool and post the numbers at warm idle. MAF, BLM, INT, BAT, etc. A Powelogger file would be very helpful otherwise it’s a guessing game.
  10. scgnx2

    how's your wheel size

    The tire selection for 16x8 rims is almost non existent. There are no 255x50x16 street tires available in my searches. Just some drag radials or 275 versions.
  11. scgnx2

    GN1 72mm T/body

    It’s great looking piece, but it’s very pricey. If you have stock plenum adding an RJC power plate will improve the air distribution for considerably less. GN1 claims there plenum improves air distribution, but I haven’t seen any data published verifying that. The gain here is you don’t lean out...
  12. scgnx2

    90-Degree 1/8" Male NPT to -4AN Male Flare Adapter Fitting

    I found mine at the local Ace Hardware. They have a huge selection of brass fittings.
  13. scgnx2

    Replacement Fuel Sock / Strainer - Walbro

    Why not buy a new pump w/strainer ? If you’re going thru the trouble to drop the tank anyway. The 255 pumps are not that expensive…
  14. scgnx2

    Art Carr passes away

    I ran a real Art Carr 9 1/2 Non Lockup converter in the early 90’s. Absolutely loved it on the street. Art was an innovative person and did a lot of great things for the Motorsport world. RIP Art..
  15. scgnx2

    fuel pump Hotwire issue ??

    Just replacing the Relay module may or may not fix your issue. The female connector terminals in the plug can be corroded or damaged which can cause intermittent contact. Here’s a better solution which is reasonable priced :
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