Homegrown

Would like to knew the hp limit on my 1975 K-Jetronic (CIS).

It started life as euro 2.7 liter now it is 3,0 (new cylinders and barrels)
have SC eurocams will be upprated with a more free exhaustdamper, one 3" staightthroudamper (20inch long) insted of the predamper and the big rear silencer.And maybe 964 cam profile.

Question is if the injection will handle a compressor installation with a goal around 300hp.

What hp will maxout the injectionunit.

Hladun1

Existing CIS probably won't work. I believe there was a bigger version on turbos.

Homegrown

I think you are totally right in your answer Hladun1 but i want to know where the limit is for my existing system.220hp 250hp 270hp or what.

Have anyone maxed out this system too find the limit?

bones

To get beyond 220bhp I think the biggest limiting factor will be the compression ratio of your 3.0 ltr pistons (if they are stock). CIS should be good for at least 250bhp but you will have to play will fuel pressures and monitor your mixture strengths. Carbs would be an easier system to set up.

Homegrown

Will propably go with a standalone injektion/ignition or motorcycle carburettors and standalone ignition after a while.
But I will stick to the CIS for a year at least and maybe supercharge it,therefore I need too knew the HP limit.

LaughaC

Any luck getting the CIS to produce more horsepower?