will this work? MAP adjuster

Performance mods and Advanced Stroker discussion.
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EVIL95XJ
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will this work? MAP adjuster

Post by EVIL95XJ »

this is described for other purposes but seems like it should work with my stroker right?


http://www.ebay.com/itm/DIGITAL-MAF-MAP ... e0&vxp=mtr
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Re: will this work? MAP adjuster

Post by Muad'Dib »

As long as you can adjust from 0 to 12v then it should be fine.

Thats pretty spendy just to have control in the cab.. keep in mind you will still have to turn off the ignition when making adjustments and or switching from modified voltage to stock voltage (or at least i have to on my RENIX).

Id build my own and save all that money. I mounted my home built adjuster near the Windshield Fluid reservoir with the POT facing towards the hood. I can easily pop the hood and flip the switch or make adjustments.
If it feels right, then STROKE it!
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Re: will this work? MAP adjuster

Post by EVIL95XJ »

Spendy but way cheaper then some other methods I've seen. I probably will make my own sence this is a budget build
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Re: will this work? MAP adjuster

Post by Cheromaniac »

EVIL95XJ wrote:Spendy but way cheaper then some other methods I've seen. I probably will make my own sence this is a budget build
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http://www.angelfire.com/my/fan/MAP_adjuster.html
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Re: will this work? MAP adjuster

Post by tequila mike »

Why do you have to,
(turn off the ignition when making adjustments and or switching from modified voltage to stock voltage (or at least i have to on my RENIX).

Think i missed something
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Re: will this work? MAP adjuster

Post by Muad'Dib »

Just the way it works on my RENIX. I cant flip to stock voltage without killing the engine. This just means that you have to turn off the engine to make adjustments and then turn it back on.
If it feels right, then STROKE it!
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Re: will this work? MAP adjuster

Post by doublins »

I picked up a used Apexi S-afc from a buddy for like $80- it is perfect for controlling the AFRs on my 98- I use it with a wideband in-cab in real time to make subtle adjustments as I need- For instance, just last week I noticed my AFRs at the upper end of the rpm range under full throttle were dipping into the 11s, so i popped the glove box open at the next traffic light, pulled 2% @ 4500, 5000, 5500 rpm and then watched the afrs during another wot pull when the light turned green. was happy with the new AFRs, so I put the controller back in the glove box, closed it up, and went on my way. I don't know what could be more convenient than that.
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Re: will this work? MAP adjuster

Post by CobraMarty »

doublins wrote:I picked up a used Apexi S-afc from a buddy for like $80- it is perfect for controlling the AFRs on my 98- I use it with a wideband in-cab in real time to make subtle adjustments as I need- For instance, just last week I noticed my AFRs at the upper end of the rpm range under full throttle were dipping into the 11s, so i popped the glove box open at the next traffic light, pulled 2% @ 4500, 5000, 5500 rpm and then watched the afrs during another wot pull when the light turned green. was happy with the new AFRs, so I put the controller back in the glove box, closed it up, and went on my way. I don't know what could be more convenient than that.
Is your Apexi connected to the MAP sensor? Is it modifying the MAP sensor voltage? When you 'pulled 2%' was that effectively decreasing the MAP voltage at those rpm's?
1998 XJ 2D AW4 32"MTR 3.55 4.5"RC JCR Slider Magnaflow 150rwHP/174rwTQ=> Sprintex SC Gibson Header 6lb 120-140*IAT 211rwHP/274rwTQ WasherFluid Inj 70mmTB 7.5lb 100-120*IAT=>Now 12 pounds Boost=> +BV ported head
99 XJ M62 S/C
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Re: will this work? MAP adjuster

Post by CobraMarty »

When you guys use the 'MAP adjuster' and you adjust it to increase the voltage to say 5.25v, Do you get a CEL?
1998 XJ 2D AW4 32"MTR 3.55 4.5"RC JCR Slider Magnaflow 150rwHP/174rwTQ=> Sprintex SC Gibson Header 6lb 120-140*IAT 211rwHP/274rwTQ WasherFluid Inj 70mmTB 7.5lb 100-120*IAT=>Now 12 pounds Boost=> +BV ported head
99 XJ M62 S/C
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Re: will this work? MAP adjuster

Post by superstingray77 »

I have set mine as high as 5.5v on the 99WJ without issue. Just for testing when I had the tune too lean.
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