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Old 08-31-2011, 11:05 AM   #1
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Tuning question?

If a fox has 30lb injectors and a mass air to match, does it need to be tuned to run properly? If so could that be the reason my car stumbles at WOT then in the higher rpm's runs like a top!
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Old 08-31-2011, 11:24 AM   #2
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You may need to adjust your fuel pressure, providing you have an adjustable regulator.

---------- Post added at 11:24 AM ---------- Previous post was at 11:22 AM ----------

It should run fine without a tune as long as the maf is calibrated for 30# injectors.
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Old 08-31-2011, 11:34 AM   #3
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Is calibrated for it but like I said, if u romp on it it bogs pretty bad until the rpm's get higher then it starts leveling out??? Can I put on my aeromotive regulator without taking the upper and rails off?
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Old 08-31-2011, 11:43 AM   #4
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I tried on mine to no avail, you will probably have to. Only took me about 30-45 minutes to change mine and that was with a stripped bolt.
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Old 08-31-2011, 12:56 PM   #5
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Okay, thanks for your help. I will get her running in a bit and see what pressure I'm running under load and see if it drops any and if it does I'll put in a that regulator!

---------- Post added at 12:56 PM ---------- Previous post was at 12:45 PM ----------

Do you know what pressure I should see at full throttle?
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Old 08-31-2011, 12:58 PM   #6
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Stock is 40+ at wot.
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Old 08-31-2011, 01:22 PM   #7
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I appreciate it bud!
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Old 08-31-2011, 02:03 PM   #8
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No problem man.
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