Stock LS6 MAF is 85 mm which is 850 CFM so we can see there is no reduction or lack of airmass to fill the cylinders at WOT by the MAF so no so called "ramming" is needed In the case of the stock 346 CI LS6 (at sealevel) at 6,000 RPMs engine only uses about 480 CFM to about 600 CFM at 6,800 RPMsĭoing it by math it would be (CI*RPM*VE)/3456 CFM is a standard measurement of airflow that indicates how many cubic feet of air pass by a stationary point in one minute. RPM TPS MAFLbs MPH Torque MAFRQ MAFgrms HPĜFMĬlick to expand. Why not look at like PVC pipe rather then metal and you can get the same results with 3rd party filter mounted where stock was, cut slit in shroud and use a CAI, this way no low filter issues and air temps will equal outside temp once over 15 MPH. You will find using a OBD scanner that under highest engine loads the engine is using LESS then 600 CFM of air and GM calls the intake manifold a "reserve" for a good reason and we live on Earth so density never allows void of air so there is no limiting of engine performance with 750 (pre 2001) to 850 CFM MAFs Halltech is a idiot, he reinvents what GM already knew and why most MAFs have a screen on it to straighten airflow when MAF is close to aircleaner air source. Many Corvette owners bought their Corvette to enjoy it daily and not a garage queen so having filter close to ground will bite back and also could hit during bumps, curbs, etc GM understands this and why they do not use metal You cannot judge airflow by waiting until there is a error code, you need a OBD scanner can do lots of testing and compare MAF ( stock and your design) output frequency, grams/second and grams/cylinder to see if metal is effecting MAF output Good reason GM few years back ditched the MAF design, look at the later C6 MAF design, shape and where it is now located Round pipe before the MAF plus the Y coupling causes air to spin and can confuse the MAF sensors. there is alot of enjoyment in creating your own intake, its like adult legos, and there is a great sense of satisfaction with using your brain to go faster I would have built this from plastic if i could have, since its much lighter, 3)tuners have no qualms about using metal near mafs, and 4)this is for the dragstrip, if you are stupid enuff or unfortunate enuff to drive your corvette in the rain, obviously this won't work-actually the biggest problem with this settup (for the street) is that the filters will probably get dirty much quicker than other setups I use the "Y" pipe because, thru dragstrip testing, i found that the smallest spectre filters flowed more at low speed, but seemed to restrict the top end speed, but the larger filters restricted low speed with better topend speed-so I doubled the smaller filters and found i had great bottom end and top end, however using two medium filters with the "Y" proved no different from just one medium filter.all derived from empirical data, time slips and lots of runs.Ģ/3/4. There is a straight pipe in front of the maf which has smoothed out airflow, I know because i took my haltech air straightener (honeycomb screen) off, and i had no codes as I had before the screen. Click to expand.Thankyou for responding (I think)ġ.
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