2 bar map?
- vashxj
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2 bar map?
so what 2 bar map have you s/c and turbo guys been running in your setups? and do you just wire straight to the stock wiring if your using a custom pcm tune?
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Re: 2 bar map?
I don't know what map I got with the ripp supercharger kit but it did plug right into the factory wiring.
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Re: 2 bar map?
If its obd2 talk to flyinryan im pretty sure he likes the gm ones over the chrysler one.
- vashxj
- I made it to triple digits!
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Re: 2 bar map?
ya I was going to email ryan unless he sees this and posts, since he is most likely going to tune it anyway lol. im starting to get all the stuff for the s/c
- SilverXJ
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Re: 2 bar map?
As said, the GM style sensor will work. Looks like the earlier Jeep sensor, but 2 bar.
2000 XJ. 4.6L stroker
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
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00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
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Re: 2 bar map?
Ryan in the house.......
I don't have an overwhelming preference towards either. BUT, here is what I will say. The SRT4 2bar MAP sensors are actually 2.25 bar, which makes them good for something in the vicinity of 18 or so psi. A standard issue GM 2 bar MAP will peg out at something like 15.5-16 psi. JTEC has a fixed number of load columns regardless of whether a 1, 2, 3 bar map etc is used so the greater the MAP scaling is (e.g. 2.25 bar or 3 bar versus 2.0 bar) the worse the resolution is. For lower boost pressures I can modify the scaling to minimize loss of resolution but no matter what, the 2 bar will always have better resolution than the 2.25 bar.
Bottom line: I can make both work, but for best drivability I'd recommend the GM 2 bar MAP unless you intend on pushing 16psi or greater.
Gotta go, back to work.....

I don't have an overwhelming preference towards either. BUT, here is what I will say. The SRT4 2bar MAP sensors are actually 2.25 bar, which makes them good for something in the vicinity of 18 or so psi. A standard issue GM 2 bar MAP will peg out at something like 15.5-16 psi. JTEC has a fixed number of load columns regardless of whether a 1, 2, 3 bar map etc is used so the greater the MAP scaling is (e.g. 2.25 bar or 3 bar versus 2.0 bar) the worse the resolution is. For lower boost pressures I can modify the scaling to minimize loss of resolution but no matter what, the 2 bar will always have better resolution than the 2.25 bar.
Bottom line: I can make both work, but for best drivability I'd recommend the GM 2 bar MAP unless you intend on pushing 16psi or greater.
Gotta go, back to work.....
- SilverXJ
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Re: 2 bar map?
Excellent reply!FlyinRyan wrote: JTEC has a fixed number of load columns regardless of whether a 1, 2, 3 bar map etc is used so the greater the MAP scaling is (e.g. 2.25 bar or 3 bar versus 2.0 bar) the worse the resolution is. For lower boost pressures I can modify the scaling to minimize loss of resolution but no matter what, the 2 bar will always have better resolution than the 2.25 bar.
2000 XJ. 4.6L stroker
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
- vashxj
- I made it to triple digits!
- Posts: 193
- Joined: August 10th, 2012, 8:46 pm
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- Vehicle Year: 1999
- Vehicle Make: jeep
- Vehicle Model: cherokee
- Location: belvidere, il
Re: 2 bar map?
so whats the gm sensor out of? or whats the part number
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Re: 2 bar map?
if i remember right you can find this map sensos on the old GM 6.5l turbo diesel (GMC navada,savana).


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