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  1. 5.0L Miata

    Cel Help - Here Are The Codes

    Hey Guys, I need to have an emissions test done on my car but I know it will not pass with the CEL on. The CEL seems to come and go as I drive and I don't notice and driving issues. Here are the codes I get: 511 - No worries I have a chip installed 173 - 02 fault rich 177 - No 02 sensor...
  2. 5.0L Miata

    Belt Squeal Mystery - Need Help

    Hey Everyone, I have a 95GT with bolt-on's that I've been having accessory belt issues with for the past two seasons. Last summer the car was making a ticking noise which turned out to be a bad belt tensioner. I replaced it this winter with an aftermarket unit from Summit Racing. This...
  3. 5.0L Miata

    1995 Gt Runs Like Crap - Code Help Please

    Hello Everyone, I have just installed a new engine in my 95 GT (stock short block, eddy heads, b-cam, 24lb injectors, Cobra intake, 70mm TB, 90mm MAF, shorty headers, flowmaster exhaust, x-pipe, etc. The car starts and idle fine now but is running like crap. No power through the gears, feels...
  4. 5.0L Miata

    1995 Gt Rubber Fuel Lines

    Hello All, This winter I've been swapping in a fresh 302 into my 1995 GT. When I pulled the original engine I had problems disconnecting the fuel lines at the fuel rail on the engine, so thinking I could easily replace them I just cut them off at the fuel rail. Now I have everything together...
  5. 5.0L Miata

    1999 Svt Roush Convertible?

    Hey Everyone, I'm looking at a 1999 Mustang SVT Roush Convertible that is for sale locally. My understanding is that these are rare cars and that very few Roush Cobra convertibles were made. Any ideas on how I can verify that this is a real Roush Cobra? I'm told that this is not a SVT with...
  6. 5.0L Miata

    Shop Towel in My Coolant!?! I suck!

    Ok, pretty embarrasing to post this but here is the situation. I pulled my radiator to do some work on the car a few weeks ago and was re-installing it when my friend came over. He got under the car and grabbed the driver's side of the rad and I worked the passenger side up into it's home. He...
  7. 5.0L Miata

    Electric Gauge Install - Use Factory Wiring?

    Hey All, I have an electric water temperature and oil pressure gauge that I'm trying to install. I have installed the senders where the stock senders were on the 5.0L and the stock wiring is still in place. Is it possible to utilize the stock wiring instead of running new wiring to my new...
  8. 5.0L Miata

    High Crankcase Pressure...Bad Noises...Thoughts?

    Hey All, I took the car for a quick run last night after getting many of my problems resolved. I installed a professional products 70mm TB that didn't have a spot for the hose from the valve cover to attach to it. Not really thinking about it much I just put a cap on it where the hose used...
  9. 5.0L Miata

    Low Vacuum - Causes?

    Hey All, This has been an ongoing saga that I hope you can help me solve. The engine is from a 91 Mustang GT and it has Edelbrock RPM heads, Explorer Intake, 70mm TB and EGR spacer, on a stock bottom end (including cam). I am still running Speed Density from when the car had an 88 engine in...
  10. 5.0L Miata

    Box Intake...Thoughts?

    Hey All, I have a chance to pick up a custom aluminum box upper intake with a truck lower for my car for a reasonable deal. I know there are a lot of concerns about how box intakes can kill bottom end torque, but was looking for feedback from those experienced with them and a go/no go for...
  11. 5.0L Miata

    Almost back on the road!! Need Help!!

    Hey All, It has been a long winter trying to get this car back together and on the road. I did a blitz attack on it over the past weekend and have the car to the point where it is 98% ready to go. I have one big problem that I need your help with. I purchased an Explorer intake and 70mm...
  12. 5.0L Miata

    Clutch & Flywheel

    Hey All, I've read lots of posts on here about flywheel and clutch options. I've done some searching for aluminum flywheels and have found some good prices on Ebay for an aluminum Fidanza flywheel. There are also some good prices on clutches and other flywheels with the brand name "F1...
  13. 5.0L Miata

    RJM EGR Eliminator

    Hey All, Just wondering if anyone has any experience with this unit: http://rjminjectiontech.com/?p=9 I'm running an Explorer intake with no internal EGR, so I'm thinking I need to remove the EGR. I'd rather not spend $400-500 on a chip and tune, will this do the trick for me? Thanks.
  14. 5.0L Miata

    Need Help - Broken Oil Pan Bolt

    Hey All, I managed to break one of my oil pan bolts off while installing a new oil pan today. The rest are all torqued to spec, but of course the last one I go to tighten snaps off flush with the block. I can try and helicoil it...or: Any chance some JB weld would hold strong enough...
  15. 5.0L Miata

    Rings? Need Help with Diagnosis

    Hey All, I just purchased a used long block from 1991 Mustang with the intention that of using the short block for the basis of my buildup. Of course my assuption was the short block was in good condition, but the engine was already out of the car so I was not able to hear it run or do a...
  16. 5.0L Miata

    SN95 TB on Explorer Intake in a Miata!

    Hey All, Yes, very confusing I know! Basically what I have is: 1991 5.0L H.O. from a Mustang Running an 88 computer and SD Explorer upper and lower intake Stock Mustang EGR Spacer and TB I have the opportunity to buy a 75mm TB and EGR Elbow from a 94 Mustang, but I'm wondering if...
  17. 5.0L Miata

    Running REALLY Rich...next steps?

    Hey All, I've checked all of my vacuum connections and everything seems ok...although I still am getting a poor vacuum reading? The car is running VERY rich, so rich in fact that the black smoke begins to choke me in the garage after about 30 seconds of idle. I've tried running the codes...
  18. 5.0L Miata

    Edelbrock Performer RPM - Pushrod Length

    Hey Everyone, Yes I know...pushrod length varies by engine. I measured a little over 6.6" of pushrod required for my 5.0L (stock block, stock cam, performer RPM aluminum heads, stud mounted rockers). I phoned Edelbrock and they recommended 6.7" pushrods for the heads. I purchased a set of...
  19. 5.0L Miata

    Car is running very bad - need help!

    Hey All, I just installed Edelbrock Performer RPM aluminum heads, comp cams push rods, aluminum adjustable (stud mounted) rockers, and an Explorer Upper and Lower intake on my otherwise stock 88 5.0L H.O. The engine is all back together and will start, but is running REALLY bad! This was...
  20. 5.0L Miata

    Anyone know "Project77"? Need to talk with him re: head purchase!

    Hey All, I purchased a set of used Eddy aluminum RPM heads from the stangnet classified section from this user. The heads were to be shipped on July 5th and I was supposed to get a tracking number. My cheque has been cashed and I have sent mutiple emails and left phone messages to get the...