Water injection
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
I have heard of people using water injection and methanol in the form of washer fluid. It does cool the combustion chambers moreso than just running an EGR, and probably would help with pinging on that high of a c/r. The biggest challenge usually is finding a good central point to inject it at for even distribution, and regulating how much gets in there. Most people use the PCV or brake vacuum ports at the rear of the carb, and a vacuum solenoid to switch it off and on. Use a Holley jet to regulate the flow, but finding the right one is a trial and error process.
Lead Driver
Joined: Nov 2000
Posts: 6,623
Likes: 342
From: Albuquerque
I'm using a kit from Snow Performance and I highly recommend it. I'm normally aspirated with around 10:1 (educated guess). After the new engine had a few thousand miles on it I started having pinging on premium. The kit completely eliminated the ping and I was able to add a little advance back in. I have an offset aluminum air cleaner lid and I welded a bung in right over the center of the carb pointing down. They have their own nozzles and I'm using a relatively small one.
Lead Driver
Joined: Nov 2000
Posts: 6,623
Likes: 342
From: Albuquerque
I don't recall any stage options. It's the boost cooler n/a (normally aspirated). Comes with a 250ml nozzle. I tried the smaller 175ml nozzle and it was too small for me.
I'm also experimenting with ways of delaying it's operation untill a certain rpm so it can't come on when the engine is not running.
I'm also experimenting with ways of delaying it's operation untill a certain rpm so it can't come on when the engine is not running.
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Moderator
Joined: Jun 2003
Posts: 3,547
Likes: 71
From: Calhoun GA
There are some aftermarket ignition boxes equiped with a NO/NC rpm activated switch. The BBK unit I have will do it in 100rpm increments.
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Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
I had a friend who ran one years ago on a Pontiac 455 with 14:1 compression. It ran on premium fuel just fine. He had an Edelbrock kit. I'm not even sure if they make one anymore or not. It was injected thru the air cleaner lid I believe and had a stand alone control box.