MAF and injector size for homebrew using hybrid turbos
#15
AudiWorld Super User
Thread Starter
Join Date: Dec 2002
Posts: 2,718
Likes: 0
Received 0 Likes
on
0 Posts
@ the moment
568cc/min - 42lb Greentops w/5bar 63% larger than stock
90mm maf= 45*45*3.1416= 6361.74= 52% larger than stock
Any problems with 90mm @ idle and misfire?
90mm maf= 45*45*3.1416= 6361.74= 52% larger than stock
Any problems with 90mm @ idle and misfire?
#18
AudiWorld Super User
Thread Starter
Join Date: Dec 2002
Posts: 2,718
Likes: 0
Received 0 Likes
on
0 Posts
Re: That'll work. That's the same setup that we put in Uli's car. He's at -11pri now, no codes.
568cc/min - 42lb Greentops w/5bar 63% larger than stock
Using Fuel Injector Flow Calculator
Enter Original Fuel Pressure 43.5 (is this stock fuel pressure 43.5?)
Enter New Fuel Pressure 72
Enter Rating Of Fuel Injector (lb/hr) 42
New Flow Rate Of Fuel Injector 54 lb/hr
567 cc/min
Isn't this a bit crazy, to be pushing an injector that was rated @ 42lb @54lb ?
Edy
Using Fuel Injector Flow Calculator
Enter Original Fuel Pressure 43.5 (is this stock fuel pressure 43.5?)
Enter New Fuel Pressure 72
Enter Rating Of Fuel Injector (lb/hr) 42
New Flow Rate Of Fuel Injector 54 lb/hr
567 cc/min
Isn't this a bit crazy, to be pushing an injector that was rated @ 42lb @54lb ?
Edy
#20
Nope, fine. Those injectors (and most Bosch squirters) are rated @ 5bar, but the delphi's are not.
It'll be hell on the stock fuel pump though: It has to flow more volume at a greater pressure.