# Hardcore race closeup pics **URL:** \ **Category:** Shift518 Automotive\ **Created:** [December 1, 2008, 6:45pm UTC](https://forums.speedlife.net/t/hardcore-race-closeup-pics/240503 "2008-12-01T18:45:33Z")\ **Posts on this page:** 1\ **Showing post:** 253
**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\ **Post date:** [January 25, 2010, 6:23pm UTC](https://forums.speedlife.net/t/hardcore-race-closeup-pics/240503/253 "2010-01-25T18:23:05Z")
> [@SOLD!](https://forums.speedlife.net/t/sold/28607/11): > > This is a pretty nifty race modification. The mechanical fuel pump is running on a 6 throw crankshaft driven at cam speed. This way instead of having a halibrand style injection that feeds all cylinders continuously, fuel is only shot into the intake tract when the air velocity is high providing much better fuel atomization. This would also prevent fuel pooling behind the intake valves, and increase fuel economy. > > Still not as good as a piezoelectric injector though like the Sauber is running 8 of. The 956 and 935’s were originally mechanically injected and later switched to the motronic EFI(and even later in the 962 to the “double DME” motronic). While not nearly as performing as EFI is now, I’m still a huge fan of the mechanically injected P-cars. If nothing else I think it’s the sound of the cars. The old MFI and CIS car has such a distinct engine decel noise that makes my spine tingle. At RR3 there was such a sweet '87 930 with a flat fan 935 MFI 3.2L in it. Grand theft auto definitely crossed my mind :lol --- _[View the full topic](https://forums.speedlife.net/t/hardcore-race-closeup-pics/240503)._