Crawled under the car again today to take out a custom piece of pipe that I wanted to replace. Found out it was smaller diameter than I could have imagined...
Think this was hurting my spool and top end?
This adapts up to the downpipe.
I bet the exhaust shop was laughing when they made this....
So what now? I had planned on making a 3 inch pipe, perhaps with a dump, but since the rest of my exhaust is a 2.5 inch Enthuza with a Magnaflow I was thinking about just using this collector to go to a 2.5 inch pipe and call it done. The collector would be a better transition than a 3 inch pipe meeting a 2.5 inch flange.
Any idea what kind of spool gain down low and HP loss I was experiencing? I'm sure the VE tables will be all screwed up so it's a good thing the first race isn't this weekend.
I tried to eyeball my turbo inlet and it looked like 2.25 on the caliper (could not reach in there far enough) Does that seem like the correct inlet for a T04E 50 trim? I'm not going to take it apart right now to see what trim or AR it is.