LT1, Crossfire, etc.., Intake runner lengths

[Bruce Plecan]

9's are a fast ride, and there is a time where ya gotta draw the line
for setup-tuning time,  for that I'd think of a something like a Haltech
E6GM.  While this is kinda a cop out, I just haven't got anytime at 8,500
with a gm ecm.  The Haltech  is designed for that.  I could thou easily
picture a 808 prom code, double loaded in a 256K memcal in a 749 doing that
thou.
  Would be fun thou
Bruce

>>   I have been under the impression that long intake runners are for
>>  low-end torque, and short runners are for high RPMs.  What type of
project
>>  are you considering?  Maybe then we could get some folks to analysie it
in
>>  greater detail.
>
>Yep, I was of the same understanding, just looking for RPM ranges.
> I bumped into an old racer buddy the other day and stopped
>by his garage.  He's got a '68 Camaro drag car, 355 chev, .
>.700 lift roller cam, 850 holley carb,  13:1 comp, powerglide trans...
>  He says there is no way a GM ECM system will replace his
>Holley & dual point dissy and still  turn 9.90s...
>
>I told him to build a low comp shortblock and
>put some turbos on it with a milder cam, and the EFI will knock
>his socks off..   Their are 3.8 liter Buicks that weigh 1,000
>pounds more than his car, that earn quicker timeslips.
>He likes loud cars and hates my turbo talk..
>Gets upset when I call him a caveman..
>He is still considering a naturally aspirated EFI setup..
>His roller cam doesn't pull much vac at idle which has me a
>little hesitant to try a MAP system.  Another concern is that
>his engine regularly sees 8500 RPM.  I don't think that the
>GM ECM can do that.  Not sure though..
>Thanks,
>Mike V
>