Jackson Racing Electronic Map Converter

[registry]

I just installed my JR Map Converter tonight and my car runs (as we say in Boston) PISSA! The car has absolutely NO TIP IN DETONATION at all. I even had my JR BTC setting only 1 click to the right (the air is nice and cool tonight). It's just so much more enjoyable to ride because I like to gradually get into the gears than full all out revs. The engine seems to be running a lot better. I was having trouble with the stock JR fuel enrichment system before this, but now it's finally cured. For anybody with stock injectors, it's a pretty good fix. Let's see $359.00 for the BTC, $179.00 for the Map Coverter, and $80.00 for the fuel pump. It's really starting to add up! We may of got a deal on the blower, but the other add-ons will killya.

[registry]

Here ya go!

[registry]

Sorry, forgot to put my signature. It's been awhile.

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"99" GSR Emerald green sedan-6 psi /JRSC,Walbro 255 lph fuel pump,AEM CAI,Comptech stainless 4-2-1 header,Comptech stainless exhaust,MSD 8.8 ignition wires,Comptech upper and lower strut brace, Comptech sport springs,DC short throw shifter, JR btm, chrome KMC Tarantula wheels on Toyo 205/45ZR 16" Proxes T1S tires, Power Stop cross drilled rotors, metal master brake pads, stainless steel brake lines, KYB/AGX struts, Energy Suspension motor mount inserts, Piaa 1700 plantinum driving lights w/Pia Super whites replacement bulbs,walnut woodtrim interior


Wing/future dark tinted windows and very proud!

[2kbill]

Random -
I think the MAP converter is probably a better solution to fuel enrichment than the relay, but if you don't have tip-in, I don't know if it would be worth $179 or not. I wouldn't get it if you have bigger injectors, either.

[randomwalk101]

Registry, what is your set up? What car are u running? I have a GSR w/ BTC...I don't hear any detonation at all..even with BTC knob at 0. I removed the TP trick..car running fine..only occasionally when start up, the stupid JR FMU sticks...
Do you think the JR MAP will benefit me?

[Spunkster]

The Map controlle is much better than the fuel enrichment relay. that relay was more of a bandaid by todays standards, because at the time there was noot enough technology at an affordable price to do what the map controller does.

[quadlamp]

Does anyone know what effect the MAP converter would have on mid-range, part throttle detonation? I am currently pulling a lot of timing with a J&S Ultra V2, would this thing work in conjunction with the MAP voltage limiter on the J&S Ultra?

[vtec-s]

Quad..

Here's my setup : 97 GSR, 6 psi, J&S Ultra v1, JR fuel pump, stock injectors.

I've had the part throttle (closed loop) mid range (4k-6k) knock you describe for the past two summers. Accompanying this would be (sometimes severe) hesitation. Well I installed the JR map converter (pulled the IAT relay/pressure sensor, never got to the TPS mod) yesterday and no more detonation (so far).

The J&S sensitivity is ~10 o'clock and all is quiet during part throttle/midrange/loaded situations whereas before it would consistantly take a few degrees out. I even bumped the base ignition timing back to 16 deg w/o any det.

As far as I know the J&S limiter lets you adjust the map sensor voltage up or down linearly across the output range (ppl let me know if this is inaccurate) as well as limiting the maximum voltage the ECU sees (boost). So the J&S and JR map controls should work together. There really isn't a need for the J&S limiter as the JR box effectively does the same thing (limits max voltage the ECU sees in boost situations).

Anyway hope this helps. My first de-lurk .

[sullust]

registry-
after you installed the BTC, were you still getting detonation after cranking the btc timing all the way down?

[registry]

I did have the btc setting all the way to the left and a couple of times, when I got on it hard, I could hear slight pinging. When I give it 1 click to the right, nothing! I run normal 16 degree stock time and run Sunoco 94 octane, so if your running a lower octane you may need a little more retard in the btc setting. Please note that at partial throttle there was no tip-in detonation at all, even all the way to the left. I am extremely happy with my car now, even at 6 PSI...It's strong!

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"99" GSR Emerald green sedan-6 psi /JRSC,Walbro 255 lph fuel pump,AEM CAI,Comptech stainless 4-2-1 header,Comptech stainless exhaust,MSD 8.8 ignition wires,Comptech upper and lower strut brace, Comptech sport springs,DC short throw shifter, JR btm, chrome KMC Tarantula wheels on Toyo 205/45ZR 16" Proxes T1S tires, Power Stop cross drilled rotors, metal master brake pads, stainless steel brake lines, KYB/AGX struts, Energy Suspension motor mount inserts, Piaa 1700 plantinum driving lights w/Pia Super whites replacement bulbs,walnut woodtrim interior


Wing/future dark tinted windows and very proud!