just boought a w3z2

well i no longer believe in this super awesome w3z2 computer. i got another z2 computer put it in and the same dan thing rev limits at 63ish and speed limiter at 105 (because of my 3:73 gears) so now i have 2 z2 computers that do me no good guess i just have to get a tune done.
 
mikeskustomfab said:
well i no longer believe in this super awesome w3z2 computer. i got another z2 computer put it in and the same dan thing rev limits at 63ish and speed limiter at 105 (because of my 3:73 gears) so now i have 2 z2 computers that do me no good guess i just have to get a tune done.
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Mike, I think if the fabled non-speed-limited w3z2 does exist, it could only be some of the very early ones - part # F3LF-12A650-AA or F3LF-12A650-AB.

The date on mine is 10-92 so I'm guessing you need an ECM with a build date of 9-92 or older.
 
Mine is a 1-93 and she shifts down at 100 when shown WOT and goes to about 120 then shifts to 4th and goes till I back out. I have done about 215 Km/h or about 135. I backed out because my moonroof got real loud and I did not want to lose it. I will fix that soon, I have the gasket kit and we'll see how fast she really goes.

That was some kind of slinky VW needed a lesson. He gave up when she shifted down at 100 and accelerated strongly.
 
My son's has a build date of 10/92 with a w3z2, and I know it's been to at least 135 mph with no limiter. I would like to know if his was one of the first Mark VIII"s built. The last 5 of the vin are 00020.
 
Well, that sucks. I was under the impression that all, or at least MOST W3Z2's were NOT speed limited. You may be onto something about the traction assist, though. Obviously, the ECU's for T/A cars are different than the ECU's for non-T/A cars, since people have reported having difficulties swapping ECU's between a car with T/A and a car without it. Also, my W3Z3 in my stock, non-T/A 93 Mark did NOT have a speed limiter, whereas, from my understanding, all W3Z3's are supposed to be speed limited between 120-130 with stock gears, but I'd had mine well above 130 on several occasions and never ran into any limiter whatsoever.

Just out of curiosity, out of everyone who's running Z2's, how many are running T/A Z2's, and how many are running non-T/A Z2's, and who's got limiters and who doesn't? It's just a crazy idea, but maybe we can get to the bottom of this. I'm curious if this could be the issue, since I have a W3Z2 for my next project out of a T/A-equipped car.
 
the first z2 i do not know if it was a t/a computer but the second one was out of a t/a car
 
I'm not sure what the deal is with the T/A but a long time ago, I had a W3Z3 that came out of the black on black 93 that my dad signed over to me but it ended up getting hit on the passengers side and pretty much totaled. I had the black 94 that had the Z4H0 and it didn't have the T/A. When I installed the Z3 into the 94 and I turned the key over, the cooling fan came on high and then I tried to start the car but all it would do is turn over. It never started but it worked just fine when pulled from the 93 with T/A.

The W3Z2 I have now is from a 93 and I have no clue if the car it came from had T/A or not (because it came from Jamie) but it worked just fine in the white 95 so, I don't understand what the T/A would have to do with anything but it does have some kind of effect because I seen it first hand with the W3Z3. I would have understood it better if the car had been hit on the drivers side and maybe damaged it but the car had no damage on that side at all. All I could get the 94 to do was turn over and turn over and the cooling fan was running on high with a cold engine. It's either going to start or it isn't. If it does start, there shouldn't be anything different with being limited on speed unless they made changes sometimes during the year in 93 on the W3Z2.

Jamie said it doesn't matter if the car does or does not have T/A and that could be true. Maybe the Z3 I tried in the 94 did suffer some type of shock damage from the wreck, idk.
 
I got a z2 out of an 11/92 car with t/a, moonroof, and jbl.... that was supposed to be THE car for the hot z2, but, mine is speed limited. Didn't notice the max rpm though. And I have 4.10 gears, so I'm limited to like 97mph. Which blows. I have an sct flip chip, just need a tune.
 
This is supposed to be the numbers for the W3Z2 according to a program by SCT I believe. Tommy, that used to be on here provided this a few years ago.

W3Z3 WOT spark
6000.000 27.0
5000.000 24.0
3500.000 23.0
3150.000 19.0
3050.000 14.0
2500.000 12.0
2000.000 12.0

W3Z2 WOT Spark

6000.000 32.8
5000.000 29.0
3500.000 26.5
3150.000 22.3
3050.000 17.0
2500.000 15.0
2000.000 13.0

W3Z3 Rev Limit 6450

W3Z2 Rev limit 6850

W3Z3 1-2 shift 5600
W3Z2 1-2 shift 5600 + 15 psi more fluid pressure for the transmission.

W3Z2 speed limit (driveshaft revs) 16372= no speed limiter
W3Z3 speed limit (driveshaft revs) 5400 = max speed limited!
 
NoLimit95 said:
This is supposed to be the numbers for the W3Z2 according to a program by SCT I believe. Tommy, that used to be on here provided this a few years ago.

W3Z3 WOT spark
6000.000 27.0
5000.000 24.0
3500.000 23.0
3150.000 19.0
3050.000 14.0
2500.000 12.0
2000.000 12.0

W3Z2 WOT Spark

6000.000 32.8
5000.000 29.0
3500.000 26.5
3150.000 22.3
3050.000 17.0
2500.000 15.0
2000.000 13.0

W3Z3 Rev Limit 6450

W3Z2 Rev limit 6850

W3Z3 1-2 shift 5600
W3Z2 1-2 shift 5600 + 15 psi more fluid pressure for the transmission.

W3Z2 speed limit (driveshaft revs) 16372= no speed limiter
W3Z3 speed limit (driveshaft revs) 5400 = max speed limited!
Click to expand...

Getting a lot of mileage out of that info, aren't you? lol
 
Stangman said:
I got a z2 out of an 11/92 car with t/a, moonroof, and jbl.... that was supposed to be THE car for the hot z2, but, mine is speed limited.
Click to expand...

^That pretty much describes the car I pulled my Z2 out of, except I'm not sure on the build date. I still have the parts car, so I could check it when I get the chance, but the car was a LOADED car- T/A, moonroof, JBL, even the factory phone. I have checked the build date on it before, and I seem to remember it being built in 92, but I could be wrong, since I can't remember exactly what month.

I thought I had heard of more people on here talking about having issues when swapping a T/A ECU on a non-T/A car or vice versa. The only thing I know is I have 3 '93 parts cars, one of which came with the Z2 I have, and the other two had Z3's, and I've hooked all 3 of those ECU's up to one running parts car to test them and they all worked fine on it, but all 3 of these parts cars had T/A, so I don't have a non-T/A ECU to test out on this T/A-equipped parts car.
 
*Maverick* said:
^That pretty much describes the car I pulled my Z2 out of, except I'm not sure on the build date. I still have the parts car, so I could check it when I get the chance, but the car was a LOADED car- T/A, moonroof, JBL, even the factory phone. I have checked the build date on it before, and I seem to remember it being built in 92, but I could be wrong, since I can't remember exactly what month.

I thought I had heard of more people on here talking about having issues when swapping a T/A ECU on a non-T/A car or vice versa. The only thing I know is I have 3 '93 parts cars, one of which came with the Z2 I have, and the other two had Z3's, and I've hooked all 3 of those ECU's up to one running parts car to test them and they all worked fine on it, but all 3 of these parts cars had T/A, so I don't have a non-T/A ECU to test out on this T/A-equipped parts car.
Click to expand...

My '95 LSC doesn't have T/A if you want to sent one this way, I'll test it. Like I said earlier, I don't know if my Z2 came from a T/A car or not.
 
Whenever I get the time and feel like it, I'm planning on cleaning out the garage where I can get to my wrecked Mark VIII I used to drive (the one that didn't have T/A) and start swapping at least 2 of my T/A ECU's into it and see what happens. While I'm doing it, if I have enough time, I might take the ECU out of it and stick it in the running T/A-equipped parts car to see if putting a non-T/A ECU in a T/A car would make a difference as well.
 
NetKeym said:
Getting a lot of mileage out of that info, aren't you? lol
Click to expand...

Only the info, surely not in the car. :D I have been thinking about putting the DZA1 back in and see if my mileage gets better. I don't beat my car all over town so, really no need to always have the Z2 kept in and it's an easy swap. It's almost impossible around here to get up past 100 without getting caught. My insurance is just now starting to go back down since my last speeding ticket in Oct 2010. I wanna keep it that way. State Farm must be trying to compete with the others, idk. Like AllState has driver forgiveness and I think State Farm is trying to do the same because I have noticed my bill getting lower and lower every 6 months since Oct 2010. The only thing I honestly like about the Z2 is the way it shifts and it's not even j-modded yet and it idles at the light or in park without any feeling. I feel it but barely.
 
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