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I'm horrible at math, so I use online calculators whenever possible. I'm trying to determine the external volume of a cylinder, or, the displacement of a tube port I'll be using for my new sub box. I used this calculator; the numbers I plugged in are accurate...

After a few years of having a JL Audio Stealthbox bolted down in the factory location in the trunk, I'm getting ready to build a custom sub box that will mount behind the back seats. i'm planning on using the center bolt for the rear seats to anchor the box down, but I really have no idea how...

Rather than post this question in my build thread, I figured I'd post it here to make it easier for people to find. I'm ready to start tuning my system/DSP using Room EQ Wizard (aka REW). REW has a built in pink noise/signal generator and using it would greatly simplify the tuning process. I...

I know this is a longshot, but possibly someone might know. I'm trying to determine the maximum clean output setting (before distortion) of the 400A head unit (I have the 9-speaker shaker system.) I have a SMD DD-1 distortion detector, and tried to use it, but it didn't show any input...

This is a "Work In Progress Thread" vs. a "It's all done and here's my build thread" thread. It will keep me motivated to keep going! Back in 2017 I said I was happy enough with the stock 9-speaker Shaker + Stealthbox install. It was good enough, and I wasn't going to deal with the misery of...

Getting ready to start my new system install and since I'm going to have the interior halfway apart anyway, I'm toying with the idea of removing the rear speakers to let the bass from the sub into the cabin. I'll be disconnecting the rears anyway; was just going to leave them there, unplugged...

Now that I've done the '18 mani/stock TB swap on my GT, I'm left with the GT350 TB that came with the FP PP2 kit and the spacer. My TB is clearly marked part# GR3E-9F991-AA. A Google search turns up exactly two hits, one on Ebay. A search on Tascaparts turns up NOTHING. What the heck do I...

No concise way to say this in the subject line. I uploaded a Lund tune today with my new SCT X4. I don't see an option anywhere in there to change my tire revolutions per minute to fix my speedo. I didn't check against GPS, but I'm pretty sure it's off..reading high compared to how fast I...

My PP2-equipped GT has developed the #8 cylinder misifre/random misfire problem, which is typically indicative of the butterflies in the IM being busted. Swapped coil packs and the problem did not move from the #8 cylinder. I haven't pulled the #8 injector or plug, but based on everything I've...

I didn't see this spec posted in the big "specs thread" at the top of this forum. I'll be replacing my front calipers along with the hoses all around (going to steel braided lines). I saw in this thread that the brake hose to caliper torque specs for the rear are 35 ft/lbs...

I think someone's trying to rip me off. I purchased what is supposed to be a new PP radiator for a 5.0 engine. The box I received had been opened and taped closed. The part number on the radiator itself does not match the part number on the box. The part number on the box is correct, but the...

After my car nearly fell off the 4-post lift and got greasy-handprints all over it too, I've decided the dealer will no longer perform regular maintenance on my ride. I bought a service plan for it, so that's why they were doing it. For my first DIY oil change on this car (not my first EVER...

From the "I always wondered about that" files - What size tubing fits on the radiator petcock so that you can drain the radiator neatly into a bucket without it splashing all over the place? Thanks. Also, related: Where do you take your old anti-freeze? Two auto parts places near me take old...

Anyone have the instructions for the Steeda driveshaft safety loop? Steeda used to have the installation instructions for all their products right there on the product page but no longer do. Changing that was a mistake IMO. I'd like to see what's involved in the install vs. the BMR (who has the...

I'm planning to go FI of some type (undecided ATM) in my DD in the next 6 months or so. Looking at doing "mods that matter" first, to avoid problems later. Looking at upgrading the half shafts and the driveshaft. What I'm finding is that many aftermarket driveshafts are rated at 850HP, while...

You can never have too much cooling. I am most probably looking at going to FI on my daily-driven '17GT in the next 6 months or so. In prep for that I want to do mods that matter, like half shafts and cooling. The radiator seems like an easy kill to me. Is the PP radiator itself the only...

I went from the stock 265/35-20 squared to a 285/35-19 squared. Do I need an alignment? I do not have any pulling or other steering anomaly; I just want max life out of the tires. I do rotate them regularly; every time I change the oil, in fact. Thanks.

This is not a review thread; it is me sharing some pics and initial thoughts on my new EC-7s in 19x10 and Continental Extreme Contact Sport (ECS) tires in 285/35-19. As my car is 99% street driven I went with a square setup for rotatability. I purchased the wheels direct from Apex (thanks...

My tire/wheel setup will change the overall diameter of the wheel vs. stock. I want to recalibrate the speedo, which I can do with Ford Performance ProCal flash tool that came with my PP2. In the software there is a user-settable entry for Tire Revolutions Per Mile. The manufacturer states my...

Just curious if anyone puts anti-seize compound either on the lugs or the hub face? I was reading the owner's manual the other day for my 2014 F150 to see what the lug nut torque is (same 149 ft lbs, BTW) and in there it stated "Torque specification is for clean lugs, free of rust, properly...