| Re: The "4.9 liter turbocharger, stage 1" thread.
alright, so the 5,200 rpm redline changes things a little bit. ( I still need to know the exact CID of your 4.9?)
299 x 5200/3456=449.88 @100% VE which is nearly impossible naturally aspirated.
299 x 5200 x .85/3456 =382.40 @ 85% VE which is more realistic. You CAN however have more than 100% VE with the addition of a well thought out turbo and efficient intercooling.
An 85% VE of 382.40 x .07=26.77 lbs/min
26.77 x 1.41 Pr=37.75 lbs/min under 6 psi of boost. If you give me your compression ratio I can figure out what it would be under 6 psi of boost as well.
Here are some things I still need to figure out a compressor map:
1) What engines came with this turbo?
2) Of those engines, are they ALL turbo charged or are some naturally aspirated?
Assuming that some are naturally aspirated, I need to find out what their CID is and estimated HP and TQ at various rpms. I'll also need the same info for the turbocharged versions as well as how many lbs of boost the turbos run stock? With this info, I can figure out the % difference between the N/A and FI in VE vs HP/TQ in all models and come up with a realistic equationf of how much CFM/lbs/min the turbo must push.
If you guys can find me this info it would help immensly. |