Need help...QUICK !
I've got my car at the dyno to be tuned. Here's the problem:
MAIN PROBLEM When the car is cold, it will start right up. But, if you let the car run a little bit and warm up and turn it off, it won't start until it cools down :confused: What should we be checking? My tuner said that the spark coming from the plug wires is more yellow than blue. MINOR PROBLEM It's getting plenty of fuel - in fact, at idle it is pushing 75 - and we can't get that number to come down at all. He was wanting to get it around 45. What should we check here? I've got Ray's big pump pushing through -6 lines. Regulator is SX brand. Thanks for the quick replies as I'm paying for dyno time as you are reading this :) |
I don't think I can help much, but you may want to post this or cross post it to other parts of the forum, or try on chat.
Good luck, sorry I wasn't much help. :( Does this mean we get to see numbers later? :) |
Could you please post your mods as well?
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Tuning for breakin right now. Will post numbers when fully complete.
Mods are: Greddy T-78 Single Turbo Large Streetport / Dowel Pinned / 3 mm Seals Greddy Down Pipe SR Motorsports Resonated Mid Pipe Apexi N1 Dual Tip Cat-Back Greddy Type-R Blowoff Valve Unorthodox Pulleys Greddy Elbow Greddy 3 Core Front Mount Intercooler ACT 40% Over Clutch Shane Racing 9.5# Aluminum Flywheel Stainless Steel Braided Brake Lines SR Motorsports Ultimate Fuel Pump -6 Braided Fuel Lines Weldon Racing Fuel Filter SX Rising Rate Fuel Pressure Regulator Power FC w/ Commander w/ Datalogit Laptop Software HKS Twin Power Ignition 1600cc Secondary Injectors w/ Custom Fuel Rail Aquamist Alcohol/Water Injection Magnecor 10 mm Plug Wires |
Your minor problem seems to be the problem you need to solve first. I hope you are using SX part# 15402 or 15404 fuel regulators. Any of these two should be able to be adjusted to 45psi at zero vacuum even with the fuel pump you are using. Make sure the return line is not blocked or clamped for any reason.
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Sounds like after shutoff the regulator or something is bleeding down pressure by letting gas into the chamber and is flooding it on hot restart.
I see this alot on other cars at work. Not FD's. Hope this helps a little at least |
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