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Christian,
Check those plugs in another 10000 Kilometers... Platinum plugs will typically only last around 10-12 thousand miles (which would be about 20000 Kilometers tops). The Platinum is soft, and the electrode gets worn down much faster than conventional metals.
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'93 Civic Si H/B with B18C1, JRSC @ 8psi
Best 1320: 12.68 at 110 mph
Jim,
So you think it?s better to go with NGK copper plugs, right? I?ve heard they must be changed every 20000 kilomter too. I guess they are a little cheaper. I?ve the PFR7G stock (you guys have the 6 for stock ITR?s) Should I go with an 8 heat range?
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>The Platinum is soft, and the electrode gets worn down much faster than conventional metals.<HR></BLOCKQUOTE>
Huh????
It's just the opposite!!
The JR "MAP Controller Circuit" arrived today. I'm now mulling over the directions, which look straightforward, but perhaps a bit incomplete for the inexperienced & paranoid installer, like me. For example, there is no suggestion where to mount the box - or if it belongs under the hood or under the dash near the ECU, where all of its connections are to be made. Eight of the 10 pages of instructions are model-specific wiring diagrams.
FYI, here's the intro:
The MAP Controller circuit is a replacement for the original Boost pressure switch and Fuel Enrichment Relay. It will translate MAP pressure into a voltage signal that the factory ECU can understand and allow faster, smoother transition into boost fuel enrichment. It is fully self contained and "potted" for safety from moisture, heat or vibration.
I'll probably try to install it on Saturday.
Bill
So you take out the IAT relay and use that instead. Makes sense, now it'll give more fuel based on pressure instead of some static value that attenuates the air temprature reading. I've read somewhere that the IAT relay advances timing too, which is the main reason we have to retard it so much. May be able to run a little more timing too 9for those of us without BTCs).
I'm still curious how it's going to play with the VAFC, they both mess with the MAP signal.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>It is fully self contained and "potted" for safety from moisture, heat or vibration.<HR></BLOCKQUOTE>
That means you can put it under the hood.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by 2kbill:
The JR "MAP Controller Circuit" arrived today. I'm now mulling over the directions, which look straightforward, but perhaps a bit incomplete for the inexperienced & paranoid installer, like me. For example, there is no suggestion where to mount the box - or if it belongs under the hood or under the dash near the ECU, where all of its connections are to be made. Eight of the 10 pages of instructions are model-specific wiring diagrams.
FYI, here's the intro:
The MAP Controller circuit is a replacement for the original Boost pressure switch and Fuel Enrichment Relay. It will translate MAP pressure into a voltage signal that the factory ECU can understand and allow faster, smoother transition into boost fuel enrichment. It is fully self contained and "potted" for safety from moisture, heat or vibration.
I'll probably try to install it on Saturday.
Bill<HR></BLOCKQUOTE>
It sounds like something the J&S v2 can accomplish by plumbing the MAP sensor to the intake manifold, except that the J&S allows you to adjust the voltage for more fine tuning... However, please let us know the result of the unit.
JT
[This message has been edited by JT98CivicEX (edited June 28, 2001).]
I found a good place is in the dash next to the glove box near the stereo...there is empty space there. I have my timing at 18 degrees, in 110 degree weather with AC on there is no tip in at all even after sittin gin stand still traffic for 30 min in this heat. I reccommend this mod to anyone with a Supercharger (jesus christ i can't type tonight to save my life) to increase power and save the engine. Before i put it in, i hooked the safeguard back up and there was both audible and detected detonation, not there is none. This is far superior to the TPR relay....even the Zdyne guy that came up with the TPS mod said it was just a bandaid till something more permanent could be had. This also allows you to remove the JR pressure activated fuel enrichment relay, which if the resister/diode (can't remember which) goes bad, you can fry your ECU. Please excuse any typos, i'm about to cut off my hands and throw out the keyboard.
I'm also still haveing a damn hard time getting into hostboard since they transfered the thing....something about proxies and firewalls.
I just got finished installing the MAP Controller, and took it for a test drive. Before, particularly when it was hot out and the A/C was on, mid-throttle I got audible pinging under load. That appears to be completely gone now, and it also seems to have smoothed out the transition to higher rpms in the 4-5K range. It's probably a valid argument that this mod should have come with the kit, but in any case I'm glad to be rid of the pinging, which couldn't have been doing my engine any good. Thanks to everyone for their comments!
I installed my first JR MAP fuel modifier Friday evening in a '00 Civic Si. Early this morning, I traveled with the owner of the car to Atlanta to tune the car on the dyno. I must say that the results were staggering !!!
The car has a stock JRSC with the JR BTC and MAP modifier, a DC Header, Venom 270's, AEM CAI (cut down short) and a cat-back exhaust. A Cartech was originally set for the initial install, however, it had a leaking diaphragm and created all kinds of tip-in detonation... so for the time being, the stock JR FMU was utilized. Obviously, this created an extremely RICH condition and many drivability issues followed. Unhappy but undaunted, this customer returned to me for repairs.
Once strapped down to the DynoJet, the first pull was a sickening 146 HP and 118 TQ !!! The UPS man then showed up with the new Cartech 2025 (this is another LONG story as to why I got it on Saturday, but anyway) and I immediately slapped it on. Pull #2 was a big jump: 168 HP and 124 TQ. We were still way too rich. Each pull got better and better... finally netting 200 HP and 135 TQ on the 8th pull. Both the customer and I are very happy with the results.
Keep the good products coming JR... we LOVE them !!!
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'93 Civic Si H/B with B18C1, JRSC @ 8psi
Best 1320: 12.68 at 110 mph
i told you that you wouldn't be disappointed.