VelocityAP ZF8HP70 Transmission Tuning (TCU)
#81
That test car was a RWD F-Type S with auto trans in Mexico, 20C and 5000DA
The best mod dragy run, for that day = 12.70@110.2mph, with more wheel slippage we averaged 107-108mph. The video was near end of our tests and sc was getting hot, wouldn't be surprised if we had large amounts of spark correction.
The best stock dragy run = 13.21@106.71mph, with more wheel slippage we averaged 103-104mph.
At that time we did not have adequate datalogging, therefore we don't have any data recorded for IAT after intercoolers + spark correction per cyl.
Both of the runs would generate wheel spin, mainly because DSC/TC was turned off to avoid any type of manipulation/handicap.
The best mod dragy run, for that day = 12.70@110.2mph, with more wheel slippage we averaged 107-108mph. The video was near end of our tests and sc was getting hot, wouldn't be surprised if we had large amounts of spark correction.
The best stock dragy run = 13.21@106.71mph, with more wheel slippage we averaged 103-104mph.
At that time we did not have adequate datalogging, therefore we don't have any data recorded for IAT after intercoolers + spark correction per cyl.
Both of the runs would generate wheel spin, mainly because DSC/TC was turned off to avoid any type of manipulation/handicap.
#84
I ordered the pulley and tune along with the transmission tune during the Black Friday sale and just got around to installing it now that the warranty is up on my 2016 R. I did the pulley and tune last week, and to be honest I wasn't totally blown away like I was expecting. I think I may have just overhyped myself due to how dramatic of a difference some people have described here. I don't doubt the numbers VAP is quoting though. I installed the transmission tune last night and took it for a test drive and the two of them together definitely made a difference though. It really pulls hard, and after you get on it, if you let off it's ready to slam you back in your seat right away when you put it on the floor.
It still does have the lag downshifting when you first floor it after cruising steady for a while, which has always annoyed me. Sometimes it takes over a second to do anything, and when I asked the dealer about it they said that's just how it is. Once the transmission is aware you're ready to have fun it seems to be pretty good about dropping a gear quickly though. My solution for that is to pull the shifter over into sport mode before I floor it so it's ready. That said, sport mode or not the VAP transmission tune feels really good when it's going through the gears. I definitely saw it hitting 7K before shifting too, which was cool.
Anyway, I don't have any numbers to post (I did order a Dragy today), but I figured I'd post for anyone on the fence, as a satisfied customer.
It still does have the lag downshifting when you first floor it after cruising steady for a while, which has always annoyed me. Sometimes it takes over a second to do anything, and when I asked the dealer about it they said that's just how it is. Once the transmission is aware you're ready to have fun it seems to be pretty good about dropping a gear quickly though. My solution for that is to pull the shifter over into sport mode before I floor it so it's ready. That said, sport mode or not the VAP transmission tune feels really good when it's going through the gears. I definitely saw it hitting 7K before shifting too, which was cool.
Anyway, I don't have any numbers to post (I did order a Dragy today), but I figured I'd post for anyone on the fence, as a satisfied customer.
#85
I've watched all your F type videos on YouTube, thanks posting... very informative and fun to watch the progression. I just picked up a 2016 V6S AWD and plan on doing some work to it. It sounds like (no pun intended) that the muffler resonator delete and the pre muffler resonator delete was a good, cheap mod but the cat delete was too much in terms of volume. Have you thought about the 200 Cell cat? anything thoughts on it?
For the front side, I think I might leave it stock. I don't necessarily want the supercharger whine and from what I've read it doesn't really help with performance. Did you notice any difference? are you thinking about installing the lower intake? Intercooler?
Are you thinking about a Meth/Water injection kit?
Congrats getting in the 3's. that's awesome.
For the front side, I think I might leave it stock. I don't necessarily want the supercharger whine and from what I've read it doesn't really help with performance. Did you notice any difference? are you thinking about installing the lower intake? Intercooler?
Are you thinking about a Meth/Water injection kit?
Congrats getting in the 3's. that's awesome.
#86
I've watched all your F type videos on YouTube, thanks posting... very informative and fun to watch the progression. I just picked up a 2016 V6S AWD and plan on doing some work to it. It sounds like (no pun intended) that the muffler resonator delete and the pre muffler resonator delete was a good, cheap mod but the cat delete was too much in terms of volume. Have you thought about the 200 Cell cat? anything thoughts on it?
For the front side, I think I might leave it stock. I don't necessarily want the supercharger whine and from what I've read it doesn't really help with performance. Did you notice any difference? are you thinking about installing the lower intake? Intercooler?
Are you thinking about a Meth/Water injection kit?
Congrats getting in the 3's. that's awesome.
For the front side, I think I might leave it stock. I don't necessarily want the supercharger whine and from what I've read it doesn't really help with performance. Did you notice any difference? are you thinking about installing the lower intake? Intercooler?
Are you thinking about a Meth/Water injection kit?
Congrats getting in the 3's. that's awesome.
For the intercooler, I plan on holding off on that for now and just modifying the OEM grill to increase airflow to my Mina Gallery lower intakes. The intake increase sound, but performance is unaffected.
For the exhaust sound, the catless downpipes was too loud for me, but ever since installing $20 mini mufflers, I am not having any issues with drone or harshness:
I looked at videos of the VAP 200 cell downpipes, and I wasn't a fan of the tone for the exhaust, plus they are expensive and won't let me pass smog. I ended up buying used cats on ebay for yearly smog inspection.
Message me if you have any other questions. I'm happy to help.
#87
#88
Join Date: Nov 2019
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#89
#90
Just be careful when manually shifting, if you try to bounce of the rev limiter at 7.5k rpms, the car shifts back to D mode on its own and makes a huge bang sound. Scary the first time I experienced that, but I guess the engine is just trying to protect itself. Normally you can bounce off the rev limiter all day if you wanted. Not anymore with the TCU tune.
https://youtu.be/Ho6ZJLnGr1s
https://youtu.be/Ho6ZJLnGr1s
#91
#92
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#93
Not going to blame this on the TCU tune, as I have no empirical data...But mine is still at the dealership with what I believe is a shredded Transfer Case after I added the TCU tune and did some 0-60 pulls.
And for the record, as soon as the dealer hooks up their software (SDD/IDS/Etc.), they can tell immediately that it has exceeded limits and has shift strategy changes, etc...That I can attest to.
Waiting for the bad news still, as it has been at the dealer all week. I was able to test drive with the level 5 technician who finally heard the grinding sounds and is checking in to it. They have been very gracious so far and trying to help which I appreciate...
Not sure what the refund situation may look like, but going to look into that, and doubtful I will re-install the TCU tune, as the change was marginal relative to the current potential $7,600 Transfer case (+ labor)!
I will update as I have more...
Enjoy your cars.
DC
And for the record, as soon as the dealer hooks up their software (SDD/IDS/Etc.), they can tell immediately that it has exceeded limits and has shift strategy changes, etc...That I can attest to.
Waiting for the bad news still, as it has been at the dealer all week. I was able to test drive with the level 5 technician who finally heard the grinding sounds and is checking in to it. They have been very gracious so far and trying to help which I appreciate...
Not sure what the refund situation may look like, but going to look into that, and doubtful I will re-install the TCU tune, as the change was marginal relative to the current potential $7,600 Transfer case (+ labor)!
I will update as I have more...
Enjoy your cars.
DC
#94
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Location: (Illinois) - Led by Gov. PRICKster
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I am not Doug...But it looks like you are referring to my post above.
After a lot of testing at the dealership, this issue simply turned out to be a heat shield that came loose and was touching the driveshaft ...and the exhaust pipe heating/swelling just enough to barely touch a crossmember. Very hard to track down, and the two items together made a horrible sound. All fixed now...No more noises...No issue with TC or Differentials and I AM running the TCU with no issues.
DC
#95
Hi...
I am not Doug...But it looks like you are referring to my post above.
After a lot of testing at the dealership, this issue simply turned out to be a heat shield that came loose and was touching the driveshaft ...and the exhaust pipe heating/swelling just enough to barely touch a crossmember. Very hard to track down, and the two items together made a horrible sound. All fixed now...No more noises...No issue with TC or Differentials and I AM running the TCU with no issues.
DC
I am not Doug...But it looks like you are referring to my post above.
After a lot of testing at the dealership, this issue simply turned out to be a heat shield that came loose and was touching the driveshaft ...and the exhaust pipe heating/swelling just enough to barely touch a crossmember. Very hard to track down, and the two items together made a horrible sound. All fixed now...No more noises...No issue with TC or Differentials and I AM running the TCU with no issues.
DC
#96
Join Date: Nov 2019
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Will be headed to a 1/2 Mile Airstrip race (No Fly Zone) on May 30....Will be interested to see how it does, and how it compares to my 997 TT...
DC
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Sparky H (04-05-2021)
#97
#98
And how about a lock on downshifting in sport mode once you've executed manual shifts? I just finished a day at the local track (likely going out of business to warehouses - bummer). It's a two gear track for all but the back straight - but every now and then I have to back off just a little in the lower gear due to traffic. When I squeeze down to pass, it sometimes automatically downshifts then won't upshift - it drives me nuts. When in Sport and manual, let me be in control!
Chris? thanks. Inman
P.S. this is my first track event since the updated tune and pulley. Scalded dog is an understatement for this car. I'm keeping up with the Turbo S 911 Porsches in the instructor group - with a 500 lb. weight advantage that speaks volumes to this car.
Chris? thanks. Inman
P.S. this is my first track event since the updated tune and pulley. Scalded dog is an understatement for this car. I'm keeping up with the Turbo S 911 Porsches in the instructor group - with a 500 lb. weight advantage that speaks volumes to this car.
#99
#100
You are correct - it's when you go slower. With gazillions of ft.lbs. of torque, however, you don't need to shift that often. Shifting upsets balance when in the middle or exit of a turn and it does what you didn't want. The issue becomes that it readily shifts down and then puts you already at high revs (in this case 2nd gear) which it zips through quickly. It's then time to shift up again - but OH - you're in the middle of the turn still, or near the exit - and oh - it's sport - I won't shift again. You then have to remember (prematurely) to execute another upshift that was never planned.
It's IMHO a shortcoming of the programming. I don't mind being down in revs a little and keeping the gear because then I'll shift up when I want in a bit down the strait.
It's IMHO a shortcoming of the programming. I don't mind being down in revs a little and keeping the gear because then I'll shift up when I want in a bit down the strait.