Low compression pistons NA

[WilliamW]

Hey guys, it's been a while for me. My car blew up in October and I'm just getting around to putting the new parts in. I've been taking my time and debating if I should get rid of my car or not. Long story short I'm keeping it and building it for boost better than it was before.

Here is my question. Can I run bisimoto 8.2:1 pistons NA for a few months until I can safely tune my car?

Basically I'll have the engine built and the Hondata S300 installed for my computer. In the time of getting the money to get a PLX wideband O2 for my ECU, and the CHRA *MHI 16G EVOIII* I'd like to get some money put away just in case something horribly wrong happens. I feel like doing everything right away is almost asking for trouble.

Is there any damaging effects that this may cause to the engine?

Thanks.

[MRX]

It's only .6 below stock. You could probably run the stock ecu and all without a single problem..besides it being slow. Tuning it yourself while it has that low of compression would actually be better for you if you are a beginner. You have a HUGE margin of error with a stock comp f22 and your's is even safer because it's lower than stock

[WilliamW]

HA HA. That's the least of my worries. I've been out of a car for 10 months, being slow isn't really a concern. It will be so nice just to drive my car again.

The first and foremost concern is the safety of the engine. I can handle slow, I can't handle blowing up again.

[drummersteve7]

if you can't handle blowing up again then it sounds like you have 2 options.
1. stay away from boost. cause its an addiction. over time somethings gotta give. unless properly built
2. if you don't like having a blown engine sell your car cause every enthusiast will go through engines...
yah some people say, you can DD your car with good horsepower. This is true. but the addiction will kick in and you will want more and more. It never stops!

But to answer some of your questions. Yes you can drive around on a basemap, yes you can drive around with low compression pistons.
Yes you can drive without a tune. You just should keep it as chill as possible. You don't wanna go racing or any of that funness. Especially since your breaking the motor in. Recomendations are to stay off the basemap and only use it to drive to the tuning session.

Another factor: How much "DIG" power are you willing to loose with low compression pistons?
Another factor: Why are you going with the 16G Turbo? Are you doing a complete build?

-Just some things to think about!

[d112crzy]

I don't think your low end will be all too bad with that compression. It's going to be a new motor, so your compression will be up there if you gap your rings properly. I've seen 7.7:1 compression put out 180 across the board.

I'd run the stock ECU with stock injectors and break the motor in that way.