Quote:
Originally Posted by bobs
The FPR was designed to work from a vacuum up to ambient air pressure. Asking it to work under boost is probably out of the design spec.  ...I supercharged a (non M-B) car I owned a while back and had to replace the FPR with an adjustable one that was designed to work under both vacuum and boost... |
Thanks, bobs. You are right that the FPR was designed to work from a vacuum to ambient pressure. I just wondered if it had any headroom to work with boost also. At cruise and light loads the EHA will correct the mixture so the FPR propably won't do much to the AFR anyway.
At full load (=boost) the EHA control shouldn't be on so there the FPR could help a little. Did it have any affect on the full load mixture or did the operating range end at ambient pressure? Was the FPR in your supercharged project of the same type as the Bosch KE-Jet's?
tomant