ENGINESEVO
Member
Any of you have experience with the new ECi 340 engines? Another option for me would be to buy an used O-320 and buy the kit to upgrade it to a 340 version.
We are looking at building an O-340 for a customer and the change also requires a -360 sump and MA4-5 carb. So his RV-4 would still require a cowl mod.
If using a narrow deck core, I would only use the 160hp version.
Don
We are looking at building an O-340 for a customer and the change also requires a -360 sump and MA4-5 carb. So his RV-4 would still require a cowl mod.
If using a narrow deck core, I would only use the 160hp version.
Don
Hi Don, thanks for the input.
The Crankshaft Retrofit Kits for 340 Stroker Engine list a compression ratio of 7.2-1 not sure what horsepower this would work out to.
I plan to use ECI's Fuel Injection and cold air induction. I already have the Sam James Holy cowl that will accomodate the engine.
cheers, Terry.
According to Joe Trampota at ECI, the carburetor version produces up to 177 horses, the the cold air induction FI gets you to 185+.
Hi Joe: thanks for the input.
If you go to ECI's website the show their complete IO-340 engine with a 9.0:1 compression ratio with a horsepower listed at 185.
Yet if you go to their 340 stroker kit listing they show the kit as a 7.2:1 compression ratio which I would prefer due to future fuel availablity. I'm wondering what the horsepower of the lower compression ratio would be.
I'm just now sending my crankcase down to ECI for some work , so I'll ask them directly when I get a chance.
I'll need the HP rating when it comes time to order the Sensenich propeller.
tailwinds, terry.