Hi All


I Have Honda civic with swap engine B16A i am looking to change stock b16a pistons for high Compression 82mm pistons should this make difference , is it worth it or not ?

 

Make a difference in what? Kinda wondering why you're going to do this if you don't know the outcome.

 

why 82mm...

 

What Civic? What B16A engine? Tech threads require specific car/engine information.

 

Increasing compression and displacement will increase output but only if you have the cams to take complete advantage of the increased compression. Personally I would just go to a B18B block with P30 pistons a good bottom end that will make tq and power even with small B16 cams.

 

Why 82 ? Because you you have to bore B16A block and i don't wanna make it weak ...
i know the outcome but i need advice if this will be worth it ... since it will cost you money and time as you know

 

I'm sorry. WHY do you "have to" bore the B16? You aren't providing enough info.

 

More precisely, you aren't providing us any information. Tell us what you're aiming for. Of course high comp pistons will make a difference - if they didn't, all motor builds wouldn't be running 11, 12, or even 13:1 compression on the track. If you didn't know that high compression makes a difference, you have a lot more to read up on before you worry about "having" to bore anything out.

We don't play cat and mouse on the tech forums. Ask us precise questions, and we'll give you precise answers. Ask us wishy washy, open ended questions, and you won't get any useful response.

 

Sorry for that

My Setup like the following :
Golden Eagle Fuel Rail
Spoon Chip
Skunk Throttle 70
Skunk2 Camshaft stage 2
Walbro Fuel Pump
Fuel Regulator
Light Weight Pulley
Light Weight Flywheel
4-1 Headers


And other information should i post ?

 

First off, get rid of that "Spoon chip". It's garbage, and if you want to see actual power gains without the risk of grenading your motor, you need to get your car properly tuned. Second off, what specifically do you want to know about high comp pistons?

 

I know i will change it

i want increase power without using turbo but i don't know if i waste money in right place

 

The only way to make competitive power without a turbo is with sleeving, boring, stroking, and compression. The first thing you should be worrying about is finding a reputable machine shop to install some Darton or AEBS sleeves. While that's being done, start educating yourself about stroking and compression. There's a lot of math involved in building high output motors. You have a lot to learn. Start off here.

I'll say it again. You aren't going to make competitive power out of that motor without a LOT more money.

 

Thank you very Much Man very Useful