Compression Ratio ???
 

how can we make our protege5 with higher Compression Ratio

Higher Compression Piston Set
 

You need to get high compression pistons or shave the head. hehe. I'd get the pistons. Or you might just want to get a turbo and keep the low compression.

Rishie

You could always pull the head and have it decked to reduce the camber cc, and while its off have it ported and extrude honed. It would also be a good time to revalve with larger dia valves too.

In this case, the simple answer is the best. FS-ZE pistons bump compression to 10.5:1, MazdaSpeed pistons to 10.7:1.

thank u guys....
 

does the it gain any hp?????

Going from the stock 9.1:1 compression ratio to 10.5:1 should provide a nice boost in HP.

What type of gain?

..and how much would it cost to have these installed?

Compression
 

What is the compression of the MP3 Pistoles????

Re: Compression
 

9.1:1, same as all FP/FS protege engines.

What?!?
 

I thought that the MP3 had the higher compression pistons and the different cams???

Re: What?!?
 

Nope...They don't.

?
 

So if the mP3's don't have the higher compression how do they get the power out of it.

Actually, I have but I don't ever remember seeing that the pistons are the same. Must have overlooked.

Jesus Christ $1000 to void my warranty, ehhh I guess I won't be putting those pistons in anytime soon. Just bolts on for me baby.