Quote:
Originally Posted by Chad Rhodes
now that the cat is out of the bag, what is the HP potential or airflow potential of that blower? answer the question honestly, or any further input to this thread will be meritless. I know what other blowers of similar displacement are capable of, even on the 4.6 4v motors. NHRA has admitted that they have no specifications on this blower (rotor specs, case clearances, pulley sizes, boost@the rated 425 hp, max boost and or airflow of the unit, etc). All of this info will determine the potential of that combo.
I once spoke with a very well regarded engine builder who specialized in turbo motors. I asked him what the ideal comb was for xx turbo. His repsonse was that it doesn't really matter, the turbo makes the power. I think that holds alot of merit with supercharged motors as well ( i understand that the positive diplacement blowers are somewhat more affected by upstream restrictions.
|
NHRA tech has access to any information they need. I met with them in Indy and even brought hardware to educate them on what was coming. As you know the supercharger is a positive displacement pump, the faster you spin it the more air it pumps but its only part of the engine system in terms of HP potential. As one of the parameters that NHRA has indicated must be maintained for Stock eliminator is the stock pulley size - That pretty much limits the blowers potential.
BTW - the 700HP Shelby Mustang offered by Shelby Automobiles (not Ford) uses a different supercharger, they are using a larger displacement Screw Compressor to achieve this power level.
Congratulations to John Calvert for winning Stock eliminator at Pomona in the debut of the Cobra Jet.