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Old 12-21-2014, 10:19 PM   #36
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Lol. I think it's funny how this thread has resurfaced after a couple years!.. 😊


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Old 12-22-2014, 12:24 PM   #37
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And its always fine to get a thread back up on top where people see it, that is what caused me to read it this month and add 2bits.
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Old 12-29-2014, 05:21 PM   #38
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Hello and REALLY interesting notes about back pressure! Here my problem i changed my all exhaust Long tube off road and roush ! ( sound amazing for a Mustang 2012 V6 )I have a CAI and bama tune 93. Ok my point is a lost power and back pressure of course. what you suggest for re-gain back pressure?
Thank you always
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Old 12-29-2014, 08:58 PM   #39
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Hello and REALLY interesting notes about back pressure! Here my problem i changed my all exhaust Long tube off road and roush ! ( sound amazing for a Mustang 2012 V6 )I have a CAI and bama tune 93. Ok my point is a lost power and back pressure of course. what you suggest for re-gain back pressure?

Thank you always

Why do you want to gain back pressure?....


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Old 12-30-2014, 07:23 AM   #40
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Hello and REALLY interesting notes about back pressure! Here my problem i changed my all exhaust Long tube off road and roush ! ( sound amazing for a Mustang 2012 V6 )I have a CAI and bama tune 93. Ok my point is a lost power and back pressure of course. what you suggest for re-gain back pressure?
Thank you always
I think we first need to know where you lost power. As I always told folks when I had my 3.7 V6, you need to add Torque to the low end on these motors for the street, not top RPM. Did you lose low end power? Or are you sayin you lost power at the top end instead of gained it at high RPM that these mods were designed to do? The mods you list will reduce low end torque, and increase top end HPR just a few points. And also give a nice sound as well.

Whats your goal, street torque or strip top end speed? Auto or Manual?

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Old 09-07-2016, 10:57 PM   #41
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heres an issue im having. my sn95 has a 5.4 swap in her. she will only crank with starting fluid but wont stay running. when u check the fuel rail it has strong pressure does anyone have any ideas what is wrong with her. she has shorties nothing else in the process of putting her together. slowly but surely
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Old 09-07-2016, 11:27 PM   #42
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Could be a number of things!.. Maybe a vacuum line not hooked up?.. Also if you only have shorties on, and no mid pipe after, could also pose a problem!.. Ford V8s are not an even firing engine!..


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Old 09-08-2016, 12:50 AM   #43
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heres an issue im having. my sn95 has a 5.4 swap in her. she will only crank with starting fluid but wont stay running. when u check the fuel rail it has strong pressure does anyone have any ideas what is wrong with her. she has shorties nothing else in the process of putting her together. slowly but surely
It sounds like the injectors are not pulsing for some reason. Disconnect one of the connectors and check to see if it is receiving any voltage.
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Old 09-08-2016, 05:08 AM   #44
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ok thnks, my thought was the coil packs but then i was like if would kick if they didnt work.but ill give that a try. i made my own thread btw
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Old 09-08-2016, 12:44 PM   #45
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Kind of a random place to ask that question lol. But great thread to bump, I hate when people say you need back pressure
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Old 09-08-2016, 02:31 PM   #46
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heres an issue im having. my sn95 has a 5.4 swap in her. she will only crank with starting fluid but wont stay running. when u check the fuel rail it has strong pressure does anyone have any ideas what is wrong with her. she has shorties nothing else in the process of putting her together. slowly but surely
You already have a separate thread going on the same thing here >>

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