Originally Posted by moparx
another question about EFI, is it able to tolerate more static compression if the timing is tied into the computer controls ?
it seems more late model stuff have upped the compression ratios since EFI has become prevalent. even turbo and blower engines seem to have their ratios increased.
what do these kits use for knock controls ?
it also seems most of the sensors are GM based, if not identical GM parts. which is good, it ensures replacements are available in almost any hick town at "bubba's parts emporium" if needed.
beer


Many engines were/and are capable of higher compressions, with the right tune up. Technology allows that better tune up. Many folks either don't want to get the tune up any better than pulling out of the drive way or they just don't know how to...I have been running 12:1 on the street for years.

Timing and fuel control are critical.EFI makes it a lot easier.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk