Welcome to www.JeepStrokers.com!!
Not yet a registered user? You are required to Register before you can post within this topic.

Adjustable map sensor

For all non stroker / performance related problems and discussion.
Booboo23
Posts: 4
Joined: March 31st, 2017, 3:06 pm
Vehicle Year: 1997
Vehicle Make: Jeep
Vehicle Model: Wrangler

Adjustable map sensor

Post by Booboo23 » March 31st, 2017, 3:12 pm

I recently purchased someone else's project, the engine was modified and the seller told me I would need a adjustable map sensor. I understand what it does but do not know where to purchase one and am a little confused on how to install. Any help would be appreciated

User avatar
IH 392
I love JeepStrokers.com!!
I love JeepStrokers.com!!
Posts: 679
Joined: October 4th, 2008, 11:15 am
Location: Eugene ORYGUN
Contact:

Re: Adjustable map sensor

Post by IH 392 » March 31st, 2017, 7:34 pm

As far as I'm aware you have to build one?
http://www.angelfire.com/my/fan/MAP_adjuster.html
You can get more power out of ANY engine!!!
ASE Master certified engine machinist, gas and diesel

User avatar
SkylinesSuck
Donator
Donator
Posts: 388
Joined: February 14th, 2009, 11:11 pm
Stroker Displacement: 4.6L
Vehicle Year: 1998
Vehicle Make: Jeep
Vehicle Model: Wrangler
Location: Northern VA

Re: Adjustable map sensor

Post by SkylinesSuck » April 1st, 2017, 4:44 am

Somebody used to sell one. RockIt? Can't remember, it's been a while. You could also do an SAFC install. It's basically a super duper MAP adjuster. I just took mine out (hopefully getting tuned soon) and will be putting it up for sale when It around to it.

User avatar
SkylinesSuck
Donator
Donator
Posts: 388
Joined: February 14th, 2009, 11:11 pm
Stroker Displacement: 4.6L
Vehicle Year: 1998
Vehicle Make: Jeep
Vehicle Model: Wrangler
Location: Northern VA

Re: Adjustable map sensor

Post by SkylinesSuck » April 1st, 2017, 4:47 am

It was TurboCity that made them. Looks like they aren't around anymore.

Booboo23
Posts: 4
Joined: March 31st, 2017, 3:06 pm
Vehicle Year: 1997
Vehicle Make: Jeep
Vehicle Model: Wrangler

Re: Adjustable map sensor

Post by Booboo23 » April 4th, 2017, 2:28 pm

Anyone you know might make one

Booboo23
Posts: 4
Joined: March 31st, 2017, 3:06 pm
Vehicle Year: 1997
Vehicle Make: Jeep
Vehicle Model: Wrangler

Re: Adjustable map sensor

Post by Booboo23 » April 4th, 2017, 2:29 pm

Safe - does anyone make one of those

Booboo23
Posts: 4
Joined: March 31st, 2017, 3:06 pm
Vehicle Year: 1997
Vehicle Make: Jeep
Vehicle Model: Wrangler

Re: Adjustable map sensor

Post by Booboo23 » April 4th, 2017, 2:29 pm

Sorry - SAFC

jsawduste
Strong Poster
Strong Poster
Posts: 970
Joined: February 28th, 2008, 3:13 am
Stroker Displacement: 4.9
Location: Michigan

Re: Adjustable map sensor

Post by jsawduste » April 4th, 2017, 2:33 pm

http://strokedjeep.com/regulator.html

Not a fan but Leigh sells them. At least he has them on his site.

I have one that has never ben used if I can find it.

User avatar
SkylinesSuck
Donator
Donator
Posts: 388
Joined: February 14th, 2009, 11:11 pm
Stroker Displacement: 4.6L
Vehicle Year: 1998
Vehicle Make: Jeep
Vehicle Model: Wrangler
Location: Northern VA

Re: Adjustable map sensor

Post by SkylinesSuck » April 4th, 2017, 5:54 pm

Booboo23 wrote:Sorry - SAFC
https://www.google.com/search?q=safc+2& ... e&ie=UTF-8

Like I said, I think mine will be for sale soon.

User avatar
SkylinesSuck
Donator
Donator
Posts: 388
Joined: February 14th, 2009, 11:11 pm
Stroker Displacement: 4.6L
Vehicle Year: 1998
Vehicle Make: Jeep
Vehicle Model: Wrangler
Location: Northern VA

Re: Adjustable map sensor

Post by SkylinesSuck » April 4th, 2017, 5:55 pm

Booboo23 wrote:Sorry - SAFC
https://www.google.com/search?q=safc+2& ... e&ie=UTF-8

Like I said, I think mine will be for sale soon.

User avatar
Muad'Dib
Site Admin / Owner
Site Admin / Owner
Posts: 1486
Joined: January 8th, 2008, 10:55 am
Stroker Displacement: 4.7L
Vehicle Year: 1990
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Bend, Oregon
Contact:

Re: Adjustable map sensor

Post by Muad'Dib » April 30th, 2017, 7:26 pm

A little late to the party here but its a little concerning that you would add something after being told by a PO that you needed to do so. Do you understand why you need to? Is there a specific issue you need to combat?

Its important to understand the why before you go out and do something. typically an adjustable MAP isn't something you just throw at a problem and pray it fixes it.
If it feels right, then STROKE it!
You're lucky that hundred shot of CAPS LOCK didn't blow the welds on the forum!!

JohnnyBertone
Posts: 9
Joined: April 30th, 2017, 7:05 pm
Stroker Displacement: 4.0
Vehicle Year: 2003
Vehicle Make: Jeep
Vehicle Model: WJ

Re: Adjustable map sensor

Post by JohnnyBertone » May 1st, 2017, 10:16 am

I had contacted the guy that makes them on Leigh performance. they were about $35 posted on the site. he told me he wasn't sure when he'd be making another batch of them so he couldn't give me an estimated time of when they'd be available. I came back and told him I'd PayPal him $60 to make me a one off, kind of like an offer he couldn't refuse. had it in the mailbox in a week.

very nice guy and works very well.

I tried making one myself a little over a year ago using the instructions on angel fire (I think I'm not sure) and grounded out the 5V from my computer and fried it. ($600 later) id rather pay someone to make one I know works rather than grenade my ECU again :doh:

JohnnyBertone
Posts: 9
Joined: April 30th, 2017, 7:05 pm
Stroker Displacement: 4.0
Vehicle Year: 2003
Vehicle Make: Jeep
Vehicle Model: WJ

Re: Adjustable map sensor

Post by JohnnyBertone » May 1st, 2017, 10:23 am

Muad'Dib wrote:A little late to the party here but its a little concerning that you would add something after being told by a PO that you needed to do so. Do you understand why you need to? Is there a specific issue you need to combat?

Its important to understand the why before you go out and do something. typically an adjustable MAP isn't something you just throw at a problem and pray it fixes it.
I agree. the computer uses a factory programmed fueling table to keep the air fuel ratio as close to 14.7 (claimed as "perfect") as possible, until ~70% Throttle. Then it uses readings from the Manifold air pressure sensor (MAP) and adjusts the injector bursts accordingly. the MAP sensor works by taking the 5V reference from the computer, modifying that voltage by (x)% depending on the reading from the sensor, and sends it back to the computer. by changing the input voltage to the sensor, it will still modify it by (X)% but has a different number to start with. Higher voltage going in (5.2-5.5) Will richen the mixture, lower voltage (4.9-4.7) will lean out the mixture.

so knowing how this adjustor works you now need to know what the PO is trying to bandaid by throwing an adjustment at the motor. if it's a lean condition it could mean you have clogging injectors, or failing o2 sensors (upstream which monitors the AFR).

JohnnyBertone
Posts: 9
Joined: April 30th, 2017, 7:05 pm
Stroker Displacement: 4.0
Vehicle Year: 2003
Vehicle Make: Jeep
Vehicle Model: WJ

Re: Adjustable map sensor

Post by JohnnyBertone » May 1st, 2017, 10:26 am

also it is dangerous to modify the AFR without a Wideband o2 to monitor the radio. if you go too lean you'll fry your pistons and cook your head. if you go too rich you'll wash your cylinders and lose a lot of power, and possibly clog your cats (if they still exist). the MAP adjustor probably* won't modify it outside safe AFR towards the lean side, but it should still be monitored and adjusted in very tiny increments.

*-don't hold me to it if it does.

User avatar
darkcorp
Making Progress
Making Progress
Posts: 77
Joined: November 14th, 2013, 12:21 am
Vehicle Year: 1999
Vehicle Make: JEEP
Vehicle Model: GCh 4.0
Location: Kazan/Russia
Contact:

Re: Adjustable map sensor

Post by darkcorp » August 23rd, 2017, 6:57 am

Hi!
Why using Adjustable map sensor we modify suppliing voltage, not signal direct to ecu?

Post Reply

Who is online

Users browsing this forum: No registered users and 6 guests