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Old 11-07-2001, 02:17 PM   #1
wcbjr
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Thumbs up Imprezars.com's ScoobyRacing Torque Chip II

Well, I just couldn't wait. I put the chip (box) in without dyno'ing it. Here's another "seat-of-the-pants" review.

Installation was easy. The included wiring diagram was correct even though it had "JCSPORTS" at the top. After I installed the chip though, I tried to start the car and it wouldn't turn over. The LED on the chip lit up along with the lights on the dash, but the car wouldn't start. I double and triple-checked my wiring and it was correct. So I unplugged the harnesses and went to the computer to see if anyone had the same problem. I couldn't find anything and I was in a hurry to leave so I went back to the car and plugged the harnesses back in. PRESTO! The car started, took a second or two to idle back down to normal, and off I went.

It works. There is more of an increase from the chip than from the Suby Sports pulley set(<-- ~8hp). I know this for sure because I just put the pulley set on a week ago and can tell the difference. Also, the car does not hesitate for a sec when you floor it anymore, it just goes. While there is a noticable gain in torque, the gain in horsepower I haven't fully tested yet. I'll have to wait until there is less traffic around me. Oh, btw, I haven't even reset the ECU yet.


Charlie (another seat-of-the-pants reviewer)
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Old 11-07-2001, 03:53 PM   #2
mrbell
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actually, if you had the computer undone from the harness, then you probably did reset the ECU.. that's probably why it went from not working to working, even tho it was a really short time...
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Old 11-08-2001, 01:18 AM   #3
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Actually, the only reason the instructions were correct is because I had to change it from saying to connect the grey wire to pin #14 of plug B134 to saying B136

Take a look and you'll see the change. Glad you like it, I knew you would!

Larry
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Old 11-10-2001, 04:09 AM   #4
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where did you go to find this chip?
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Old 11-10-2001, 02:25 PM   #5
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Old 11-12-2001, 05:24 AM   #6
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Larry, this is made by the same guy that does the JCS tc2 right?
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Old 11-12-2001, 02:19 PM   #7
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yes, same guy.

Larry
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Old 11-12-2001, 06:36 PM   #8
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Good stuff, As far as seat of the pants i know for a fact that my JCS tc2 is doing something...... But as far as numbers? i waited the 2 weeks to a month and did not find any 1/4 mile gains that were big enough or consistent enough to be the sole result of the chip if there were real gains they were nothing more then a tenth or two...... still i wouldn't take it out...
Even though as far as REAL SOLID gains there is nothing.

But heres my testimonial to why i do sincerely believe that even though there are no gains that something is working:

Okay ever since i have had headers intake and exhaust (mainly since the headers) on the first try after an ECU the car will not start it will try and fall flat and die..... But what happens on the first try after the first ECU reset with the chip? The engine turns and then tries to die it looks sucessful until about the 1st mark on the tach when like MAGIC it simply springs back to life and runs..... Strange coincidence? or my JCS TC2 advancing ignition timing or something to the like at the last second (it was too fast a change to be the factory ECU).

The car does feel less loppy (whatever that means) or at least it feels like it is better under control.... the JCS doesn't seem like a real magic black torque box to me. more a simple cheep way to gain a little performance by filling in the cracks left when you change factory parts for aftermarket ones and the factory ECU is dumbfounded...... The car runs smoothly at all RPM and well as long as it stays that way im cool.....

-DE

P.S. DO NOT USE NON PREMIUM GRADE FUEL WITH THE CHIP EVEN 89 OCTANE.... the car started doing strange things when i got cheep.... so buck up and if you already have messed up throw some octane booster in there and all will be right as rain.....
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Old 11-12-2001, 09:21 PM   #9
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Do what? Premium fuel?

I haven't noticed anything wrong with a couple of tanks of 87. Why would it make a difference? Detonation on an N/A motor with stock internals? I don't really think so. Correct me if I am wrong, please.



Charlie
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Old 11-12-2001, 09:43 PM   #10
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no detonation. but safe to say that the car was doing some way wierd ****. lots of disagreement......

did you use the brown wire to enrich more fuel? cuz i did.....

Man it was freaky, no real bad stuff but it was wierd.... just wierd

-DE

Premium (whatever happened to 92 octane? in CA its all 91 now )

P.S. you wont expierence ANY gains without premium fuel according to a few threads on the JC sports Torque chip on here.
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Old 11-13-2001, 01:30 AM   #11
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Do NOT use the brown temp output wire unless you are running very very lean already. Use the grey temp output wire. I don't know anyone using the brown wire.

It will not increase the risk of detonation, but the ECU should be able to run more advance without detonation, so it helps to run premium.

Larry
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Old 11-13-2001, 09:17 AM   #12
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Granted, high octane fuel will help prevent detonation. But how will the ECU know to run more timing advance when higher octane fuel is used? IIRC, it has been stated in quite a few threads here that using higher octane fuel in N/A RS'es is just a waste of money since the ECU can't do anything about it.


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Old 11-13-2001, 06:39 PM   #13
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I ran the brown because i figured that everyone whines about the RS running lean all the time, if it runs a lil rich its a-ok with me figured the effects would cancel out.

but im probably eating my car from the inside out.....

-DE
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Old 11-13-2001, 11:41 PM   #14
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The ECU runs as much advance as it is allowed in the MAP, only if the knock sensor is not active.

Normally, on a hot day, or after multiple back-to-back launches the knock sensor is usually active more, and the timing is pulled back as the ECU learns. The TCII enrichment decreases knock and allows the ECU to run more advance, at least this is what the designer saw on the dyno. Too bad JCS has all the graphs.

Larry
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Old 11-22-2001, 07:32 PM   #15
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Is there any adverse affect if you raise the level of octane say to like 100? Does it confuse the chip at all and cause bogging?

Andy
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Old 11-22-2001, 07:37 PM   #16
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High octane is not a problem, see my last post.
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Old 08-11-2003, 11:07 PM   #17
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Talking RAD

Gotta say, I got my chip from Larry some time ago and I LOVE it. Feels like a whole new car. As far as octane.. well, I've used pretty much all of them.. Dont really notice much of a diff, but I've heard that the chip likes you having higher #'s, so I'm down with that. Besides, if I'm not mistaken, better quality gas is better for the car regardless. Hell, I always do a tank of 92+injector cleaner after every oil change. But I digress. Suffice as to say, this chip has been the best money I've spent on the car so far. As I have noted in other locations before though, the MAF cars (esp '98) see more improvement from the chip as our knock sensors are apparently overly cautious. That being said, this is a damn fine product if you can figure out the wiring diagram (its the weirdest I've seen) you are in for some fun.
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