I just thought I would share some results from a recent test. There had been a few people in a different market that viewed porting and advanced ceramics as a bit of voodoo and no gains should have be seen from it. We politely corrected them and started to organize a test.

For this test we chose the SRT-4 (this was the same car that is in the market in question) and contacted AGP turbo and they were gracious enough to loan three manifolds and turbine housings for the test. MA Performance (a local tuning shop with a dyno) offered up the dyno for the test, and a local member in a car club donated his car for the test. Everything was in place for us at Form and Function Performance to do our thing to the manifolds. One manifold and turbine was left untouched, one was ported, and the last was ported and ceramic coated. Once this was all done, we headed over to MAP for the test.

After a shake down and a mile tune, we hooked up all the data logging gear and proceeded to dyno. All runs were done the same, three in a row, 4th gear pulls, with NO modifications from the previous runs. All runs were allowed to come to temp for the same amount of time before the pull. The only casualty was a broken EGT probe in the testing of the ported version so we have incomplete data for that which is unfortunate because typically we see reductions of EGTs when porting is involved.

Test car is a Dodge Neon SRT-4 with an AGP 50-trim, .63ar turbine housing, large FMIC, exhaust, return line and RRFPR, and a SAFC_neo for fuel/boost control. Boost was set at 24psi with 110 octane fuel for this test.

On with the pics and results!

Pics of the unported manifold and turbine:
     

Turbine to manifold transition (sharp lip IN the exhaust flow!! yuk!):


Ported version:
     

Ported and coated version:
     

Favorite pic INSIDE the volute of the turbine housing:


Another cool pic:


And last but not least, the pic of the dyno sheet (lowest was unmodified turbo/mani, middle was ported only, and highest was ported and coated):


Some key points are that spool was decreased by ~100rpm (always a good thing) and overall gains were up to ~17ftlbs/11tq for the porting alone and the coatings added ~7tq/5tq more on top of that.

Let me know what you think or if any of you want your kits form and functionalized