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I own a 2011 3.7 L STX supercab 4x4 and am looking to increase my low end torque to keep the engine from shifting so much . Especially when i am going over hills and towing. I have a few questions that I hope to get some feedback on.
What does an intake do to extended warranties?
How hard are they to install/remove if needed?
What does this do to fuel mileage?
Do they actually work?
Do they affect engine longevity?
Has anyone else put an intake on their 3.7L? I would love to hear from anyone with experience on this.
I own a 2011 3.7 L STX supercab 4x4 and am looking to increase my low end torque to keep the engine from shifting so much . Especially when i am going over hills and towing. I have a few questions that I hope to get some feedback on.
What does an intake do to extended warranties? It can void it if they can trace the failure back to the intake.
How hard are they to install/remove if needed?
What does this do to fuel mileage? Doesn't do anything much that companies claim.
Do they actually work? Yes intakes work at bringing air to the motor, that's why they come stock . Seriously though there might be a slight increase, but you sacrifice things and there could be cheaper ways.
Do they affect engine longevity? Depends on the filter. Many of the oiled filters have less than 98% filtration where the stock is 99+%. More silica=more wear.
Has anyone else put an intake on their 3.7L? I would love to hear from anyone with experience on this.
Thanks for reading!
As stated above, the problem with intakes is decreased filtration. Another problem is changing the MAF environment. When the MAF environment changes, it cannot properly meter the air coming in. This can throw off a/f ratios and cause issues. You can tune for this to ensure the proper a/f, but for small power gains and poor filtration it's not worth it in my book. I'd take a look at your stock system and see if there's any way to reduce restrictions in it. Make it a new age Gotts mod.
Just use trailer tow or shift to M and select the gear, keeping the rpm in the 2500/3000 rpm range will afford you a lot of torque to pull. 4th or 5th gear in the hills. Trailer tow gives you great gearing expecially decending braking hills. If you didn't get trailer tow I feel for you. I love it especially after slowing for a turn/T, and having to pull a 3/4 mile long hill accelerating away. Trailer Tow the only way to go.
All the trucks have tow haul. But the tow / haul feature reduces shifting by delaying shifts and keeping RPM's higher. My experience with the manual mode, is that it can be used to stop untimely downshifts, but the engine goes in excess of 90% load at low rpms under normal usage, so the manual mode does not extract any more low end torque. I would add that torque drops off slightly from 2300rpm to 3000 rpm.
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Enjoying my near flawless F150 - Vehicle #10, and by far the best I have owned.
2011 F150 SCAB 4X4 3.7 w/3.73's
Rousch CAI
Intake for 3.7 L
. Seriously though there might be a slight increase, but you sacrifice things and there could be cheaper ways.
Linear Mode
