This is what happens when your MEVI doesn't open in 3rd gear at the track
#1
This is what happens when your MEVI doesn't open in 3rd gear at the track
I had two runs on which my MEVI apparently didn't open in 3rd gear.
For comparison, the average of my trap speeds on the runs where my MEVI did open (apparently) in all gears was 100.25. This number includes the 2 runs I made with no weight reduction whatsoever. The traps, in order of highest to lowest were:
100.99
100.91
100.56
100.55
100.17
100.14
99.92
99.91<--no weight reduction
99.66<--no weight reduction
99.64
The two runs where my MEVI didn't open were 98.21 and 97.69.
---------
1/8th mile trap speeds
---------
My 1/8th mile trap speeds were varying by quite a bit as they normally do. They are more dependent upon how well you get off the line and how well you bang the 1-2 shift.
80.08
79.68
79.50
79.37
79.31
79.26
79.08
78.96
78.68
78.67
78.34
78.03
For comparison, the average of my trap speeds on the runs where my MEVI did open (apparently) in all gears was 100.25. This number includes the 2 runs I made with no weight reduction whatsoever. The traps, in order of highest to lowest were:
100.99
100.91
100.56
100.55
100.17
100.14
99.92
99.91<--no weight reduction
99.66<--no weight reduction
99.64
The two runs where my MEVI didn't open were 98.21 and 97.69.
---------
1/8th mile trap speeds
---------
My 1/8th mile trap speeds were varying by quite a bit as they normally do. They are more dependent upon how well you get off the line and how well you bang the 1-2 shift.
80.08
79.68
79.50
79.37
79.31
79.26
79.08
78.96
78.68
78.67
78.34
78.03
#3
Originally posted by Bluebird
Why isn't it opening?
I'm realy starting to get apprehensive about buying one.
Why isn't it opening?
I'm realy starting to get apprehensive about buying one.
#5
How did you determine that your VI isn't engaging in 3rd?
My Harlan flaked out again yesterday I've now set the switch's LED within viewing range while I'm driving. There seems to be some kind of issue with the RPM switch set at 4900-5000 vs setting it at 5100-5200rpms....at least for me. I'm now using a 5100rpm switchover now.
BTW, I think the same thing must have happened to me at the track because my trap speeds on my first two runs were in the lower 97mph range and then I pulled off a 99 trap AFTER I turned the car off for 10 minutes. This is all so frustrating. It's got to be related to the cuurent draw of the MAP switch on the RPM switch.
Dave
My Harlan flaked out again yesterday I've now set the switch's LED within viewing range while I'm driving. There seems to be some kind of issue with the RPM switch set at 4900-5000 vs setting it at 5100-5200rpms....at least for me. I'm now using a 5100rpm switchover now.
BTW, I think the same thing must have happened to me at the track because my trap speeds on my first two runs were in the lower 97mph range and then I pulled off a 99 trap AFTER I turned the car off for 10 minutes. This is all so frustrating. It's got to be related to the cuurent draw of the MAP switch on the RPM switch.
Dave
#6
Originally posted by Nealoc187
Why are you getting apprehensive.
Why are you getting apprehensive.
2) I'm a 99.5 (no ECU)
3) RPM switch problems (Harlan's fault but it still isn't good)
4) I'm a 5-spd. Minimal gains w/o ECU.
5) Loss of midrange (ECU again)
#7
Originally posted by MAX2000JP
Neal, was that the run against the type R?
Neal, was that the run against the type R?
Dave-It is quite obvious as you are revving thru 6500rpms and it's just not climbing as fast as it was the run before.
Blue-I see.
#8
Originally posted by Bluebird
1) Expensive
2) I'm a 99.5 (no ECU)
3) RPM switch problems (Harlan's fault but it still isn't good)
4) I'm a 5-spd. Minimal gains w/o ECU.
5) Loss of midrange (ECU again)
1) Expensive
2) I'm a 99.5 (no ECU)
3) RPM switch problems (Harlan's fault but it still isn't good)
4) I'm a 5-spd. Minimal gains w/o ECU.
5) Loss of midrange (ECU again)
with the addition of the MEVI I went from running 14.7-14.8@93-94mph to running 14.4-14.5@96-97mph and that doesn't even show how much the damn thing pulled in the upper gears on the highway.
Take it for what you will...just my .02
#9
Originally posted by BriGuyMax
I had a bolt-on 5-speed 97 with STOCK ECU.
with the addition of the MEVI I went from running 14.7-14.8@93-94mph to running 14.4-14.5@96-97mph and that doesn't even show how much the damn thing pulled in the upper gears on the highway.
Take it for what you will...just my .02
I had a bolt-on 5-speed 97 with STOCK ECU.
with the addition of the MEVI I went from running 14.7-14.8@93-94mph to running 14.4-14.5@96-97mph and that doesn't even show how much the damn thing pulled in the upper gears on the highway.
Take it for what you will...just my .02
#10
Originally posted by Dave B
How did you determine that your VI isn't engaging in 3rd?
My Harlan flaked out again yesterday I've now set the switch's LED within viewing range while I'm driving. There seems to be some kind of issue with the RPM switch set at 4900-5000 vs setting it at 5100-5200rpms....at least for me. I'm now using a 5100rpm switchover now.
BTW, I think the same thing must have happened to me at the track because my trap speeds on my first two runs were in the lower 97mph range and then I pulled off a 99 trap AFTER I turned the car off for 10 minutes. This is all so frustrating. It's got to be related to the cuurent draw of the MAP switch on the RPM switch.
Dave
How did you determine that your VI isn't engaging in 3rd?
My Harlan flaked out again yesterday I've now set the switch's LED within viewing range while I'm driving. There seems to be some kind of issue with the RPM switch set at 4900-5000 vs setting it at 5100-5200rpms....at least for me. I'm now using a 5100rpm switchover now.
BTW, I think the same thing must have happened to me at the track because my trap speeds on my first two runs were in the lower 97mph range and then I pulled off a 99 trap AFTER I turned the car off for 10 minutes. This is all so frustrating. It's got to be related to the cuurent draw of the MAP switch on the RPM switch.
Dave
#12
Originally posted by Bluebird
I will take your 2 pennies. Thanks, thats really good to hear. Is anybody aware of any similar outcomes with anybody elses' cars?
I will take your 2 pennies. Thanks, thats really good to hear. Is anybody aware of any similar outcomes with anybody elses' cars?
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09-01-2022 01:32 PM