Can anyone who has done an aviator swap give me an idea of what i would be in for? Like what extra pieces did you need to make it work? What year aviator motor, if not all, fits? I know i would need 6 bolt fly wheel.
You could get a 6 bolt mustang GT flywheel if you want, but you'd have a 10.5" clutch instead.
Just wanted to clear up one thing here. The GT flywheel from Feb' 01+ actually use an 11" clutch. Just look for a car with a TR-3650 if you are looking to save money instead of going to an aluminum one. Put my aviator engine in with an eaton swap a few months ago, glad to hear yours has been working well for so long.
The engine runs great. It's got 10.3:1 compression, so it's great for a N/A build. I'm running a procharger with it, so I couldn't go as wild with the boost as I had planned with my forged motor.
The motor has less peak power on the top end, and makes less peak boost because of the better flowing heads, and because it has a 500 RPM lower redline. With my mods, it's tuned to make 450HP with lots of timing being pulled in the higher RPM.
I think this setup is ideal for a centrifugal blower. The high compression, with the better flowing heads, plus cams designed for more bottom end power is great for around town driving and overall driveability, with the blower, which is awesome for top end blasts.
It makes about 50 less peak HP, but makes as much as 75 more HP than my other motor as low as 3000 RPM than my 99 cobra motor with the procharger made.
the engine is 10:1, same as the mach engines. It makes less power due to the shorter duration cams; 190 deg compared to 202 deg. The better flowing heads may reduce boost a very small amount but not enough to lower hp.
Is it worth anything using the '99 cams (for N/A application) or are the differences negligible?
the engine is 10:1, same as the mach engines. It makes less power due to the shorter duration cams; 190 deg compared to 202 deg. The better flowing heads may reduce boost a very small amount but not enough to lower hp.
The lower redline of the cast crank engines was due to the transmission, not the engine components.
Motor Trend has no clue, the compression is the same as the mach, and maraduer engines. Mach 1 Technical Specifications
I can tell you from my own experience that my 99 motor pulled all the way to 7000 RPM, but this motor only pulls up to about 6500. It's all in the heads and cams, which were set up for more midrange power, rather than high rpm peak power. Even the 03 cobra motor has a redline of about 6500.
Yes, that's because the intake cams have only 190 degrees duration (see my previous post on the cams). However, the redline isn't determined by the cams or the powerband. The redline is determined by the rpm capability of the drivetrain components. For example, the redline of an automatic tranmission'd Mach 1 is lower than the that of the manual trans'd Mach 1. However, if you swap out the tq converter and a snap ring in the auto trans it's rpm capability increases substantially along with the redline.
WTF is an Aviator motor?