I'll be getting back my G/F's GSR motor soon and it'll be running 11.5:1 CR on a stock head and fuel setup... OBDI GSR ecu, stock injectors/pump/etc.

I plan to get a Vafc in the near future, but am concerned w/ just regualar driving for now. The engine builder said I should be fine w/ stock ecu till then, but was wondering...

Should I:

Get bigger injectors (5G prelude or other ?)

Or would a Vafc on stockers be fine ?

and

Should the engine be ok at that CR with the stock fuel and ecu setup (at stock dist timing) ?

X2

 

You will be fine.

If a B20/VTEC with 12:1 on a stock Civic fuel pump can put out 175 whp, you will be fine.

 

Stock 240cc injectors too ?

 

You should be fine, just try it out, if the car wants to detonate then back of the timing some , just dont try and get on the freway in fifth gear.