Boost effects on low compression engines vs high compression engines

**Blown3000** · 11-13-2012, 09:29 PM

What are the benefits of boost on a low compression engine VS high compression engine? Is there really a need to lower your compression ratio if you are going to use sometype of forced induction? If so why?

**RealMcCoy** · 11-13-2012, 10:55 PM

Yes, you will severely limit the amount of boost you can run by using too high compression ratio... The cylinder pressure gets pretty extreme.

**Blown3000** · 11-14-2012, 07:44 AM

Originally Posted by RealMcCoy

Yes, you will severely limit the amount of boost you can run by using too high compression ratio... The cylinder pressure gets pretty extreme.

Can you be more specific.

**Zaroth** · 11-14-2012, 08:06 AM

Originally Posted by Blown3000

Can you be more specific.

Too much pressure, engine go boom.

**whitedragon** · 11-14-2012, 08:42 AM

How to add a turbo to a non turbo car.

Some light reading that should break it down simple enough.

**Blown3000** · 11-14-2012, 11:48 AM

Originally Posted by whitedragon

How to add a turbo to a non turbo car.

Some light reading that should break it down simple enough.

Have done so now I want to hear from the forum.

**RealMcCoy** · 11-14-2012, 02:58 PM

Originally Posted by Blown3000

Can you be more specific.

I'm not sure what you're looking for...? A lesson in simple physics? how a motor works? Maybe I'm not grasping the question, but it seems pretty simple to me... Do you understand why you can't run 20:1 compression in a gasoline motor? If you increase the volume of air in the cylinder by one atmosphere, you've already compressed it 2:1. Do the math, and you'll find that the difference in compression between our N/A motors and turbo motors is no accident...

**Blown3000** · 11-14-2012, 09:32 PM

Originally Posted by RealMcCoy

I'm not sure what you're looking for...? A lesson in simple physics? how a motor works? Maybe I'm not grasping the question, but it seems pretty simple to me... Do you understand why you can't run 20:1 compression in a gasoline motor? If you increase the volume of air in the cylinder by one atmosphere, you've already compressed it 2:1. Do the math, and you'll find that the difference in compression between our N/A motors and turbo motors is no accident...

Sorry, You may think your answer is pretty simple but I'm not understanding what you are trying to say. Why don't you put it in simplier terms and help me with the math!