Open your driver's side door. Look down. It's towards the rear tire. A sticker. It will tell you what PSI to use. All cars have this sticker, and should be followed.*
* there are a small number of exceptions
1) yes
2) Emix tunes are always based around the octane of your starting gasoline ("scaling the tune"). The final ethanol percentage is the same, but the total Anti-Knock Index (octane) will be lower than a mix and tune that starts with 93.
3) Same. Total AKI of the mix is lower. Lower AKI...
There are two ways to tune the car:
1) For a specific ethanol content. The car must always have that ethanol percentage (or slightly higher), and never lower. You must know what ethanol percentage is coming from the pump. You use a phone app to calculate the right mix of e85/93oct against what...
Call me a heretic, but I think any engine can be great with 30 years of R&D and a cult following at its back. Eventually, what the engine can do and what the market has added/changed/fixed becomes so intermingled as to be indistinguishable to all but the most knowledgeable observers. That's how...
Performance brakes often squeak. You can, perhaps, quiet them down by undertaking a "brake bedding" procedures. There are good instructions online for bedding the pads.
Don't even bother with anything but the manifold. The Supra's cooling is fine except for the manifold. All the exchangers are just a waste and there's a reason the CSF products are being sold at liquidation prices.
The ZF 8HP51 has wretched NVH in the 1000-1300 RPM range. This is especially true in auto/comfort/drive mode, which races to the highest gear and makes NVH even worse. The overdrive gears are very vibrational below 50 MPH, and the OEM TCU tune loooooves those gears at stupid low speeds.
Try...
Removing the entire mount from the car is very easy. Take the engine cover off, then jack up the engine at the flat spot on the block just in front of the seam between the block and the transmission. You can get the engine high enough to pluck out both mounts with your hands. Might need some...
Hey, y'all. Plan to pair this wheel with Mickey 305/45R17. I'm reasonably confident this will fit. It's 20mm taller in the arch than my current setup, but pulled in ~7mm towards the hub to make more clearance around the quarter panel. Please note I'm lowered on RS-R Super Down springs, which are...