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      01-18-2015, 12:37 PM   #67
opasha
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Drives: 2014 BMW X5 50i
Join Date: Apr 2014
Location: Maryland

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Quote:
Originally Posted by 42pilot View Post
Here are three trivia questions for everyone on our 35d motors:

1. How many turbos does our TwinTurbo Power engine have?

2. How many injector events are there per combustion cycle?

3. Which is more important for power relative to boost: PSI or MAF?
I'm going to try my luck here knowing almost nothing about engines and diesels. This actually has been quite informative, and I've learned some new info .

1) Trick question! It has two.

2) Multiple - I guess for our purposes - 4-5? Pre-injection, Main-injection, Close Post-injection, Late Post-injection.

3) From all the reading I've done...PSI means very little if the car can't handle it. Since most piggy backs are modifying and plugging into MAF, MAP, and TMAP sensors, my money is on MAF (mass air flow) sensor. This is the amount of air the engine is taking in. More air...more compression...more hp?

Please feel free to correct me so we can learn more. This is great info.
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