What is your max PSI on stock turbo?

[Wolfsbora]

Hi all, I’m curious what the highest PSI you’re producing on a stock turbo - both engine modded and stock.

I’ll go first. I’m not sure if this is the absolute highest but it’s the highest I’ve recorded:

Max PSI - 27.22

List of mods I have done to my car:

Whoosh V3 intercooler
Whoosh intercooler hose replacements (including J pipe)
Whoosh symposer delete
Ramair induction hose
Ramair crossover pipe
Go Fast Bits DV+
Cobb drop-in filter
Radium Engineering oil catch can (PCV side)
Whoosh short shifter
Whoosh transmission cables aluminum bushings
Whoosh shifter base aluminum bushings
Whoosh race spec rear motor mount
Vibra-Technics uprated passenger side engine mount
Vibra-Technics prated transmission mount
Cobb Accessport V3 with Dizzy E30 and 93 tune
StopTech slotted rotors - front and rear
EBC Orange Stuff brake pads - front and rear
Whoosh stainless steel braided brake lines

I am currently running Dizzy’s stage 2 - 93 octane tune. I have his e30 tune but e85 is hard to come by in Pittsburgh.

 

[FiestaSTdude]

I don’t have pictorial evidence, but I hit 26lbs on a dizzy 93 or e30 stage 1 tune

 

[akiraproject24]

I have an occasional 26.xx here and there. On an E30 tune. Whoosh V3 and TS symposer bov. Thermal exhaust

 

[Capri to ST]

Just as a reference point, I was told by Ford Performance that the FiST will boost to a maximum of 22 PSI stock.

 

[Wolfsbora]

I don’t have pictorial evidence, but I hit 26lbs on a dizzy 93 or e30 stage 1 tune

Stage 1?? That’s awesome!

 

[Wolfsbora]

I have an occasional 26.xx here and there. On an E30 tune. Whoosh V3 and TS symposer bov. Thermal exhaust

Great setup! I most often hit the 26 range but occasionally will cross into 27 territory.

 

[Wolfsbora]

Just as a reference point, I was told by Ford Performance that the FiST will boost to a maximum of 22 PSI stock.

Yes..I’ve seen it exceed 22 PSI, though. Happened with my setup a few times. Nothing crazy. Only in the 23 range but there are definitely exceptions.

 

[gtx3076]

25 is usually the most I'll see. If it's really cold and I'm in high gear I might see 26.

 

[Wolfsbora]

25 is usually the most I'll see. If it's really cold and I'm in high gear I might see 26.

If you don’t mind me asking, what are the mods you’ve done to get you there?

 

[gtx3076]

If you don’t mind me asking, what are the mods you’ve done to get you there?

E30, V3 intercooler, whoosh crossover, 7psi wastegate. Stock air box. Tuned by tune+, and dizzy before that.

 

[Wolfsbora]

E30, V3 intercooler, whoosh crossover, 7psi wastegate. Stock air box. Tuned by tune+, and dizzy before that.

Very cool setup

 

[FiestaSTdude]

Stage 1?? That’s awesome!

I don’t remember if Jason uses the stage 1 2 3 terminology but I don’t have an upgraded intercooler or radiator so per Cobb it’s considered stage 1

 

[D-resonant]

Not raining on your parade, but record datalog to see what psi your current tune/mods trully can hold. The max shown on AP monitor is usually the momentary boost spikes between shifts.

I use the max monitor as an early indicator of possible boost leak over time by comparing it to the last time I ran the car hard…

 

[Wolfsbora]

I don’t remember if Jason uses the stage 1 2 3 terminology but I don’t have an upgraded intercooler or radiator so per Cobb it’s considered stage 1

Yes, that’s how I understand it.

Not raining on your parade, but record datalog to see what psi your current tune/mods trully can hold. The max shown on AP monitor is usually the momentary boost spikes between shifts.

I use the max monitor as an early indicator of possible boost leak over time by comparing it to the last time I ran the car hard…

I am pretty confident it is just the spike but still a fun number to compare. I’ll definitely try what you’re suggesting.

 

[M0LTEN]

Just over 28psi is normally what I see when pushing it.

 

[XR650R]

Just over 26 on my conservative tune.