Cool 4150 plate I designed...
I just wanted to share with you guys a nitrous plate I designed and ran on my caprice this past summer with pretty good results. If any of the sponsors cares to take the idea and run with it...be my guest lol.
My caprice weighed in at 4040lbs with me in it. The motor was a forged flat-top 350 .020 over with stock unported casting fuelie 2.02/1.60 heads (stainless valves and good springs, but stock chambers and no port work). It had a mild cam, cheap set of long tube headers and my nitrous setup with a standalone fuel system.

One of my best runs in that car was 12.3 @ 114mph (2.0 60' on some walmart tires)...and this was all through a 150 shot.
Plugs always looked spot on, and the car never missed a beat.
This is the plate I designed and had machined...


You will notice the stand-off on the plate. This is where the nitrous AND the fuel enters. Each bar had its own tapered inlet that was step machined for a smooth transition into the spray bars. The spray bars were brazed and not epoxied into place. I had the solenoids directly attach to the plate using fittings I machined in the lathe and swivels on the solenoid side. This offered quick and easy jet changes in the lanes at the track.
Also, I positioned the spray bars so the high pressure of the nitrous is used to help atomize the low pressure fuel on the bottom bar.
If you look careful in this photo...you can see where the lines came in and adapted to the solenoids which were directly connected to the plate.

Its nothing crazy that reinvents the wheel...but every little bit helps, and I had some awesome success from the design.
I have since sold the car, but I am sure I will have some new exciting stuff on my camaro
Make a run, and pull all 8 plugs, inspect and repeat. Dual wideband was also referenced and even some dyno time....but all real-world. Started with traditional jetting recommendations from NX and worked from there. Distribution was spot on for a high rise open plenum with a plate.
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Any sponsors care to build something like this? (wishful thinking)



