Ordered the Magnuson SC from URD. No Plans for the 2.2 Pulley, do I "need" the 7th Injector kit?

indetrucks · Sep 25, 2017

socalktk said: ↑

Hi xtianCVMA!
Click to expand...

Bruh!!!!!!

indetrucks · Sep 25, 2017

elnip said: ↑

What is Spark Plug Gapping?

Another method of insuring proper spark is through gapping. The term “gapping” means to provide an adequate jumping distance for the spark to terminate. Gapping spark plugs is very important in both non-supercharged and supercharged applications. The average spark plug gap between the electrode and the ground is determined by the engineers that have designed the ignition. Usually, when an engine is converted to being supercharged, the gap is reduced to approximately.032 to .035. This reduction in the gap helps prevent what’s known as “spark blowout" due to the increased amount of fuel and cylinder pressure. The higher the cylinder pressure the harder it is for the spark to occur. The ability of the spark to actually take place is enhanced by decreasing the spark plug gap.

A very common problem that is seen time and time again is an application that runs smoothly until about 3,000 rpm. At that point, the engine usually sputters and the power that was being created has become non-existent. If you find yourself saying, "I can’t get this car to run…I have no idea what’s going on…it’s not running properly..." - Check the spark plug gap! More often than not, once you properly gap your spark plugs, all your worries seem to go away. It really is magic!

Quote from article here;
http://www.superchargersonline.com/index.php?main_page=page&id=27
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Soooo.. what IS the correct gapping? URD 7th injector manual says to gap the provided IK22's from .032 to .043.
This guy in another thread confirms as well.

elnip · Sep 25, 2017

Well if it works for you then go for it. I had to close the gap when I ran those plugs because it would miss every once and a while.

indetrucks · Sep 25, 2017

elnip said: ↑

Well if it works for you then go for it. I had to close the gap when I ran those plugs because it would miss every once and a while.
Click to expand...

This is good info. I'll pay attention to how the truck is running and see if it misses. I thought the gap they were recommending seemed a bit wide, but I figure URD knows what they're doing.

Did you notice your miss at idle or around 3k as that article states when the plug blowout happens with too wide a gap?

elnip · Sep 26, 2017

Around 3k at peak boost.

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Ordered the Magnuson SC from URD. No Plans for the 2.2 Pulley, do I "need" the 7th Injector kit?

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Ordered the Magnuson SC from URD. No Plans for the 2.2 Pulley, do I "need" the 7th Injector kit?

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