Perload - Is it clipped at 2.0?

European strategy specific for 2004 ford mustang euro spec but also modified by SVT and used on the 03/04 cobra. Can be used on all 2002-2004 mustang v8 and v6 manual and automatics. Supports automatic 4r70w control. Can be used on 2001-2004 ford F-150 4.6 / 5.4 ecu's if configured correctly as well.
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Turbo4V
Posts: 23
Joined: 2021 Feb 17, 06:15
Location: Melbourne, FL
Vehicle Information: 2000 Mustang
Twin Turbo 4V
PTP2 EEC-V
FBGI0

Perload - Is it clipped at 2.0?

Unread post by Turbo4V »

Calculated Perload seems to clip at 2. Can a larger perload be calculated? PRLDSW = 0
decipha
Posts: 6745
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'25 F-150 5L

Re: Perload - Is it clipped at 2.0?

Unread post by decipha »

No

what would be the benefit ?
Turbo4V
Posts: 23
Joined: 2021 Feb 17, 06:15
Location: Melbourne, FL
Vehicle Information: 2000 Mustang
Twin Turbo 4V
PTP2 EEC-V
FBGI0

Re: Perload - Is it clipped at 2.0?

Unread post by Turbo4V »

I'm using Perload as the input variable for a custom manifold pressure gauge on the TP dashboard.

Formula is psig = ((perload X 29.92) - 29.92) X 0.49115).

I'm at sealevel so the formula works fine using fixed constant baro up to 2X ambient sea level pressure. I can display up to 14.7 psig (which is my max boost) before perload pegs 2.0.

Wanted to add some boost, but seems I need to take a different approach rather than use perload for pressure greater than 14.7 psig. Thoughts?
decipha
Posts: 6745
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'25 F-150 5L

Re: Perload - Is it clipped at 2.0?

Unread post by decipha »

is that what i already have in there ?

its just an info gauge i made as a relative reference its not intended to be a boost gauge
Turbo4V
Posts: 23
Joined: 2021 Feb 17, 06:15
Location: Melbourne, FL
Vehicle Information: 2000 Mustang
Twin Turbo 4V
PTP2 EEC-V
FBGI0

Re: Perload - Is it clipped at 2.0?

Unread post by Turbo4V »

I didn't see anything existing, which is why I went ahead and made it custom. Its fine either way, I have a mechanical gauge pod so I don't rely on the TP dashboard for true manifold pressure, just a nice to have display of gross psi with no decimal precision (low accuracy is fine) during data review.
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