Bull Run
Well-Known Member
- Thread starter
- #61
ProMeth Direct Port WMI with 5th Injector
I'm continuing with the heat control projects with the summer on the horizon. Unfortunately, TruFiber A81-RL hood's on backorder till the end of July, so my next mod was the ProMeth Direct Port WMI kit with the 5th injector option.
Benefits are better distribution of the mixture amongst cylinders (with the 5th nozzle located before the IAT2 sensor so the sensor "sees" the cooling effect) and five smaller nozzles (95cc/each) provide better atomization than the existing single larger nozzle (500cc).
I opted to purchase the kit mounted and pressure tested on an intake manifold so I won't be out a car if I bungle the installation.
The kit I received was different than the one pictured on the ProMeth page (they'll update the picture soon). They recently revised their port injection kits because they found that manifold vacuum was sucking the mixture out of the tubing before the check valve, which caused delays in spaying on subsequent boosts. Revised version adds two small check valves before each pair of manifold nozzles, in addition to the existing large check valve before the assembly and a small one on the 5th nozzle.
As installed on the car:
The 5th nozzle was installed on the charge pipe where the old single nozzle used to be.
Everything seems to be working great during the quick test drive. The real test will be at end of next week when the daytime highs hit over 100 degrees.
I'm continuing with the heat control projects with the summer on the horizon. Unfortunately, TruFiber A81-RL hood's on backorder till the end of July, so my next mod was the ProMeth Direct Port WMI kit with the 5th injector option.
Benefits are better distribution of the mixture amongst cylinders (with the 5th nozzle located before the IAT2 sensor so the sensor "sees" the cooling effect) and five smaller nozzles (95cc/each) provide better atomization than the existing single larger nozzle (500cc).
I opted to purchase the kit mounted and pressure tested on an intake manifold so I won't be out a car if I bungle the installation.
The kit I received was different than the one pictured on the ProMeth page (they'll update the picture soon). They recently revised their port injection kits because they found that manifold vacuum was sucking the mixture out of the tubing before the check valve, which caused delays in spaying on subsequent boosts. Revised version adds two small check valves before each pair of manifold nozzles, in addition to the existing large check valve before the assembly and a small one on the 5th nozzle.
As installed on the car:
The 5th nozzle was installed on the charge pipe where the old single nozzle used to be.
Everything seems to be working great during the quick test drive. The real test will be at end of next week when the daytime highs hit over 100 degrees.
Sponsored