So the 3” pipe where you measured the 6psi, is after all the factory connects and smaller diameter pieces?
If yes, then looks like larger diameters are needed to reduce back pressure more. Assuming your mufflers are true 3” and not those ones with louvers that make the ID effectively 2.25”
I made the same changes when I swapped to a magnum. I didn’t have to make any torque management changes.
If you are getting torque management issues after the swap you could disable the gearbox protection and driveshaft protection, etc to see if that makes the problem go away.
Also, I made a...
Looks like 1,500hp:
I ordered mine with sonnax slip yoke and sonnax rear adapter flange. The rear adapter flange is aluminum and the whole shaft is a quality piece.
Edit: I’m Tremec XL, MT-82 won’t use the...
Same experience here, DSS stuff is cheap junk. I’ve had half shafts wear out after 8 months of use and a driveshaft that vibrated so badly I couldn’t use it.
Eventually threw it away and got a QA1, problem solved.
Same here, my aluminum DSS driveshaft vibrated so bad I couldn’t use the car above 80mph and tried everything to improve the issue.
DSS told me to reinstall all the rubber bushings to absorb the vibration.
So I got a QA1 driveshaft and it worked right out the box, no issues at all. DSS is...
I have this one:
It designed for his wing, which I also have. The whole setup is very light, but if you are looking for OEM fit and finish, then you should just get a second lid as other have selected.
Yes, still very happy with mine, use it for boost by gear by rpm and it does a great job.
Guys who consider the cortex are usually put off by the install which requires a engine speed signal and an OSS speed signal. Also there are a ton of programming and setup features that can be...
Are you stock tune? If yes then the ecu has a ton of things it does to “protect” various parts when the engine is run hard. It adds fuel and pulls timing and can even pull rpm in extreme cases. Even if you do mechanical cooling mods a stock tune will still drop power by adding fuel and pulling...
I have the Cortex and love it. Car is manual. The cortex can do 8 gears, so boost by gear would probably be bottom 8 gears with 8,9 and 10 the same duty cycle.
Or you could ask them to create a beta version software for each of 10 gears, their customer support is great.
Doesn’t melt up to 245F. I use the white corrugated sign board from Lowe’s. Also the heavy duty duct tape keeps it stuck to side of radiator.
The plastic is so much easier to work with, slightly flexible, cuts with a box knife and cheap. Works fine for me.
No metrics. Only thing I kept track of was how long I could drive flat out for until temps got into 240’s and then I’d need to pull rpm.
The most effective mod was definitely the boxed rad, and the more effort I put into completely sealing it the better the result. The hood vents were...
If you haven’t sealed all four sides of your radiator then you will get overheating no matter what you do.
And I mean properly sealed in, as in NO air that enters the front can bypass the radiator. This step is the most important for effective cooling. Most guys use aluminum sheet, but I’m not...