Reply to thread

Message: [QUOTE="Gearhead, post: 501261, member: 503"] no it can actually create higher drive pressures if the turbine is too small and on paper the cam looks like it hurts the boost drive ratio once the turbine gets overloaded compared to a stock cam. For example with a 38r.... the drive pressure starts getting out of ratio sooner than stock heads and cam because you are moving more air through the engine at a lower boost level, but the turbine is seeing increased flow. You will reach the turbine's flow limit sooner but also spool up sooner. The thing I recommend is drilling the divider through the wastegate hole and letting it (the wastegate) force itself open at about 34lbs of boost or so. This way you get the instant spoolup, but the drive pressure starts getting dumped when the turbine gets overloaded. Since the cam has less overlap than stock, you don't have to worry about egr (cute name but exhaust is literally trying to force it's way through the motor backwards) happening when the drive pressure exceeds boost by a large number. That's why most cams have made less power on these motors. You don't want EGR at WOT. [/QUOTE]

Verification

Random media

Mirror

20140930_185549

train_wreck

DSCN3519

IMG_20140529_232609_341

IMAG0580

2012-08-03_16-18-45_504

20150719_151902

Screen_Shot_2014-06-04_at_8_44_44_PM

Latest posts

02 F250 7.3 Will crank, WTS stays on, no start, no OBD
- Latest: Sterling6.7
- Yesterday at 9:04 PM
7.3 Tech
2015-2019 6.7 HPFP New In Box
- Latest: lincolnlocker
- Monday at 1:26 PM
Engine and Drivetrain
First 6.0L (56k warning)
- Latest: adrianspeeder
- May 26, 2026
6.0 Tech
Extra external motor oil cooler?
- Latest: justinlogue5_0
- May 26, 2026
7.3 Tech
Weird Electrical Issue
- Latest: justinlogue5_0
- May 26, 2026
7.3 Tech

Members online

No members online now.

Total: 1,984 (members: 0, guests: 1,984)

Top