Merkur XR4Ti stalls during heavy acceleration
I'm new here and I think this is the right place for my issue.
I've posted on a Merkur forum but it has a lot less traffic.
I just picked it up the other day and this is the only main mechanical issue with the car.
The car idles good and runs great under low acceleration.
If I floor it, it will shut off.
Basically, if I stay out of boost, it runs fine.
Previous owner thought it may be a plugged cat and was causing too much back pressure. I checked the temps and the outlet of the cat is about 50 degrees F cooler than the inlet. So, it seems to be working.
The exhaust is full 3" with a high flow cat, some sort of glasspack, and then a supertrapp at the end. Not a fan of the supertrapp and planned on removing it and also wonder if that could be causing the back pressure but the car was driven for a few years with that exhaust setup.
I have yet to disconnect the exhaust and drive it to see if that solves the issue. I'm currently waiting for a day when the roads aren't covered in snow to drive it again.
I'm not sure what the issue behind this is so I thought maybe someone on here could help me out.