zz4 missing at wot
06-28-2011, 07:14 PM
#1
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Join Date: Jun 2011
Location: calvert county md
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Car: 87 ta
Engine: 350 zz4
Transmission: 700r4
Axle/Gears: 4-11
zz4 missing at wot
does anyone have suggestions why my zz4 misses at wot, only in low gear does it do it. its a 700 r4 tranny with od and a 3000 stahl
07-09-2011, 02:46 PM
#4
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Join Date: Jun 2011
Location: calvert county md
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Car: 87 ta
Engine: 350 zz4
Transmission: 700r4
Axle/Gears: 4-11
Re: zz4 missing at wot
I got it, cylinder #8 spark plug wire was bad. I have another question, my dash is all electronic, after the motor swap my speed odometer is way off and the trip odometer doesn't work at all. I also changed the rear to a 4-11, I have no idea how to fix this one. Any help would be great
07-09-2011, 02:58 PM
#5
Supreme Member
Re: zz4 missing at wot
If the speedo works and the odo doesn't, the trouble is in the cluster as the speedo drives the odo. As far as correcting the speedo for new gearing, this is done by changing gears on the VSS drive. It works just like a mechanical speedo drive with a drive gear on the output shaft and a driven gear on the VSS drive. Different gears and combinations of gears are available to recalibrate the speedo. Look to a transmission supply for the gears and a list of combinations for different gear ratios/tire sizes.
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