Bench Testing MAP Sensor - Boost

A1C calibration can be modified and configured to operate all EFI-SD4x ECUs in 4 cylinder, 6 cylinder and 8 cylinder configurations.
fofaster
Posts: 3
Joined: 2024 May 22, 10:15
Location: Dallas, Texas
Vehicle Information: 1995 Ford F-150 4.9L 'Big Six' M5OD-R2
J1X Ethanol FREE 87 w/ stock EFI emissions delete/detune

Re: Bench Testing MAP Sensor - Boost

Post by fofaster »

bumping this thread for the sake of visibility in hopes someone maybe has a setup that this could be tested on. Working on getting a motor together with a turbo to test this but until then it seems like development stopped on this and I'd love to help/see this get picked back up
fofaster
Posts: 3
Joined: 2024 May 22, 10:15
Location: Dallas, Texas
Vehicle Information: 1995 Ford F-150 4.9L 'Big Six' M5OD-R2
J1X Ethanol FREE 87 w/ stock EFI emissions delete/detune

Re: Bench Testing MAP Sensor - Boost

Post by fofaster »

gonna use my truck to test. Going to first test it with the stock motor and trans before I swap. Get a baseline for a worn stock motor and then do the swap and get data with a built motor.

Lots to do, gotta start thinking of a design for the turbo and where I would fit an intercooler.

If you can patch the new XDF whenever and pm it to me that’d be awesome, want to have it handy.

Never built a turbo setup so this is all new to me, I’ll take any advice where yall have it. What kind of turbo should I source? Would a 7.3 turbo be good?
efloth
Posts: 399
Joined: 2021 Feb 15, 22:12
Location: Sacramento CA
Vehicle Information: 1991 F150 4.9L J1X 80lb Injectors E85
1995 F150 5.8L MOB1

Re: Bench Testing MAP Sensor - Boost

Post by efloth »

pmuller at fordsix has done extensive research on ideal turbo sizing for the 4.9. Would you be using a HD turbo exhaust manifold or the split EFI? I think that is your starting point.
efloth
Posts: 399
Joined: 2021 Feb 15, 22:12
Location: Sacramento CA
Vehicle Information: 1991 F150 4.9L J1X 80lb Injectors E85
1995 F150 5.8L MOB1

Re: Bench Testing MAP Sensor - Boost

Post by efloth »

these are expensive but would make the process much easier and faster. They have different configurations available.

https://www.stainlessheaders.com/ford-3 ... front-exit
efloth
Posts: 399
Joined: 2021 Feb 15, 22:12
Location: Sacramento CA
Vehicle Information: 1991 F150 4.9L J1X 80lb Injectors E85
1995 F150 5.8L MOB1

Re: Bench Testing MAP Sensor - Boost

Post by efloth »

FYI this sensor is advertised to handle 23 PSI and is compatible with the SD Trucks and broncos. Some code patching and this sensor should make boost pretty straight forward. I'd love to do it myself but not financially able to at the moment. I'd love to help out if anyone has the resources to build a boosted setup.

Delphi PS10242
Part Details
Maximum Pressure Reading:
23 PSI
2 bar

https://www.1aauto.com/ford-lincoln-mer ... TOZavtyGda
wwhite
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SD48b, Quarter Horse, Burn2

Re: Bench Testing MAP Sensor - Boost

Post by wwhite »

Subtract atmospheric pressure leaves us with(23-14.7)= 8.3psi.

I have a turbo, engine build is on hold. I always that a 3 bar GM map sensor was the way to go with boost?
efloth
Posts: 399
Joined: 2021 Feb 15, 22:12
Location: Sacramento CA
Vehicle Information: 1991 F150 4.9L J1X 80lb Injectors E85
1995 F150 5.8L MOB1

Re: Bench Testing MAP Sensor - Boost

Post by efloth »

I thought the GM sensors were voltage, not frequency based. if you still have your OE sensor, it should be able to measure boost up to 25 psi or so. review the earlier posts in the thread for more info.
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