I have a 89 Honda civic Si and I am racing circle track. I was hoping to get a bit more out of my engine and can't think of a way to do it. The class has to look completely stock. So if there is a way to chip it to get more horse power, get bigger injectors I am up for any ideas.

 

You could build the engine internals up a little bit without making it look modified. Maybe some head work... port/polish, bigger cam, valves/springs/retainers.

Chip won't do anything...

And you need a reason to use higher flow injectors... read up on Air/Fuel ratios and you'll understand why. Just giving the engine more fuel doesn't make more power, it just makes you run rich. The engine has to be able to use the extra fuel you give it.

 

Thanks.