doruiacovescu

Any new feedback?

ras62

I had new injectors installed today, they are the new 4 hole type but flow 245cc/min as opposed to 195 for the standard injector http://www.fiveomotorsport.com/bosch-porsche-911. The car is running slightly rich as expected and ideally wants a rolling road remap, but on the road the engine does run differently. Power delivery feels much smoother on part throttle and it seems to get up the rev range quicker. Top end power is certainly better, although it has been remapped and has never lacked power, there is an extra surge after the resonance flap opens which was not noticeable before. These impressions are from my butt dyno, for actual numbers a rolling road tune is needed as I said earlier.

rsscotty

You might get by with these injectors on a 993 engine without a revised chip or remap, but on a stock 3.6 964 you are most likely running 15 to 18% too rich. Just tried using 235cc injectors on a 3.8 964 track engine that had 195cc injectors and it was 15% too rich...so we are having a custom chip made to suit our requirements.

doruiacovescu

Interesting