Unichip Tuner

[low c1500]

All this talk of the ECM having to learn is total BS, this chip is doing its own thing. These new computers learn instantly. No such thing of learning taking 50 or 100 miles.

[that1seven]

im not hating on unichip, its awsome to have a company give 50 of uus a discount ..but when i spend that muuch money n see no gains im going to be upset.. ive ran 2 full tanks of 91 through my truck already hoping it would get better but in my case, gas milage didnt get anybetter, reason why i emailed my firmware numbers n nvr got responce back.im posting from my phone sorry if i didnt spell some stuff correct

[svilla]

These new computers learn instantly

Unhook your negative terminal on your battery for 15 min. Then reinstall the terminal.

Then go for a drive, driving the same way as before the computer re-set. Then come back here and post your results.

While I agree that these computers are better, they still do not adapt to individual driving style instantly. It is my expirence that it takes about 50 miles for the computer in my truck to re-learn tranny shift patterns for my driving style.

[NOLA_1906]

Originally Posted by low c1500

All this talk of the ECM having to learn is total BS, this chip is doing its own thing. These new computers learn instantly. No such thing of learning taking 50 or 100 miles.

Don't know where you got that info from, but its incorrect.

[NOLA_1906]

Originally Posted by RIjon

So you are saying a 15.1 AFR is "correct" ????

Good grief!

No Charlie Brown, lol, basically what he's saying is that you won't encounter this lean condition seen on the dyno on the the streets. The Tundra's computer system is HIGHLY complicated and does not like dynos. Even by turning the VSC/LSD completely off, there are still nannies at work protecting the engine which freak out by adjusting timing and AFRs. It just gives you the ability to do some nice burnouts and swing the a$$ out. I went through the exact same process with my RX8. It was worse than the Tundra. It would freak out on the dyno and go into limp mode. You would have to disconnect the battery, clear the CEL and reset everything all over again. We tried tuning with an Emanage and the stock ECU would adjust in response to the Emanages settings. The AFRs would be completely screwed and the dyno would read about 20 whp lower that what it should have been. Hopefully, the Flux units will be shipping soon, and then we can do some datalogging while doing some real world driving.

[2MTTundras]

So I looked at my invoice and it says CAI map. I only have th K and N drop in filter... I'm guessing my bog is a rich condition due to not enough air for the fuel map. I called Unichip yesterda and left a message and never heard back. I'm starting to get pissed like a couple others on here.....

I spent the same amount of Money for an Edge Juice with the Attitude monitor on my cummins and it made 125 HP and 250 tq that you could feel... on all 5 stages you could tell the motor was stronger, tranny couldn't take highest settings but that's another story.... I told myself I would never buy a gasser chip again but fell into the this when the MGP increase was advertised. Oh, ya no increase in MPG when I'm not towing and with the wrong map I don't know how the milage was better to begin with when I pulled the camper. Just might have been coincidence or how I was driving.

For those real tuners out there that still want this the first 500 bucks takes it if I don't hear from UNICHIP today!

[NOLA_1906]

Originally Posted by 2MTTundras

So I looked at my invoice and it says CAI map. I only have th K and N drop in filter... I'm guessing my bog is a rich condition due to not enough air for the fuel map. I called Unichip yesterda and left a message and never heard back. I'm starting to get pissed like a couple others on here.....

I spent the same amount of Money for an Edge Juice with the Attitude monitor on my cummins and it made 125 HP and 250 tq that you could feel... on all 5 stages you could tell the motor was stronger, tranny couldn't take highest settings but that's another story.... I told myself I would never buy a gasser chip again but fell into the this when the MGP increase was advertised. Oh, ya no increase in MPG when I'm not towing and with the wrong map I don't know how the milage was better to begin with when I pulled the camper. Just might have been coincidence or how I was driving.

For those real tuners out there that still want this the first 500 bucks takes it if I don't hear from UNICHIP today!

You may be correct, they may have mapped you for a K&N CAI instead of the drop-in. Honestly, I don't believe you will see much increase from the drop-in. I installed the drop-in before my Volant cai and didn't notice much of a difference. You can't compare this to a diesel tuner. Call back today and speak to Mike, or email him directly at mtimmons@unichip.us. I can't believe you are so impatient that you would be willing to eat $100 by selling it before speaking with the company and trying to work it out. So you called once and didn't reach someone. Try again!

[RONE]

Originally Posted by 2MTTundras

So I looked at my invoice and it says CAI map. I only have th K and N drop in filter... I'm guessing my bog is a rich condition due to not enough air for the fuel map. I called Unichip yesterda and left a message and never heard back. I'm starting to get pissed like a couple others on here.....

I spent the same amount of Money for an Edge Juice with the Attitude monitor on my cummins and it made 125 HP and 250 tq that you could feel... on all 5 stages you could tell the motor was stronger, tranny couldn't take highest settings but that's another story.... I told myself I would never buy a gasser chip again but fell into the this when the MGP increase was advertised. Oh, ya no increase in MPG when I'm not towing and with the wrong map I don't know how the milage was better to begin with when I pulled the camper. Just might have been coincidence or how I was driving.

For those real tuners out there that still want this the first 500 bucks takes it if I don't hear from UNICHIP today!

Did you just compare gains between a turbo diesel and a naturally aspirated gas engine?

[NOLA_1906]

I just spoke with Unichip and they verified what I stated in my post above. We can't just look at the 15:1 AFR and freak out. They saw AFR's as high as 15:5 in testing. Stoich is 14:7 in closed loop, but the Tundra will go well over stoich to increase mileage in certain situations, even under partial load like in a towing situation. You can't go full throttle on a dyno without downshifting. This is the problem. Unichip did well over 100 dyno runs for the 5.7 and none were the same. Some showed 40 hp increase, others 40 hp decrease, and everything in between. But, on the track and street, the tuning is perfect and a 0-60 increase of .3-.4 seconds as stated by Unichip and verified on the Gtech, is achievable. The problem on a dyno is that its impossible to hold a gear on the Tundra. Our sport shift sucks. It should allow us to hold a gear without not only upshifting, but downshifting as well. It will constantly downshift under full throttle and trying to hold one gear by feathering the throttle will produce inconsistant results due to varying load. Wheel speed sensors sense when the rear wheels are spinning faster than the front and will pull timing. Its more complicated than I can fully understand as well, but they are confident as a company that it is not the Unichip, and I trust them. Do you think that in all their testing, they didn't encounter the same problems? Unichip stated that they trust Gtech measurements more than dyno measurements for the Tundra. I forget which member used his gtech, but he saw definite increases. They stated that with all new cars, they are seeing the same issues, and they are trying to get this new V-Box performance measuring system which will replace their dyno for getting accurate real time readings of AFR's and hp/tq.
Unichip has attempted to contact That1Seven and I believe 2mtt also. Their phone calls and emails have not been answered. They asked me to apologize to you again for what happened yesterday. If you don't have time to respond, so be it, but don't say that they have poor customer service. they are attempting to contact you to remedy the situation. If you would like, I can PM you personal contact numbers. Just ask. I have all of their personal contact info. Unichip will be posting later today. I asked them to explain things in laymens terms. In our discussion I was reminded of a fact that I mentioned earlier regarding the high octane map. If you don't have access to high quality 93 octane, DO NOT run the high performance map. You will get pinging and poorer performance than stock if you run crap gas or 91 octane.

On another note, Unichip has not stopped testing on the Tundra 5.7 & 4.7. They aren't stopping at simply adjusting AFR's and timing. They are investigating and making impressive progress on adjusting several other features from what I was told. They asked me not to divulge any additional details yet, but I'll just say that there's certain people on this forum who will get their wish and those that freak out and sell their chips will be very upset. They will be releasing updated maps and components in the near future. Glad I got Flux!

[2MTTundras]

Originally Posted by RONE

Did you just compare gains between a turbo diesel and a naturally aspirated gas engine?

Nope, not comparing gas to deisel.... I know that's rediculous. Just comparing price vs. satisfaction.... I'll try Mike again.

[NOLA_1906]

Originally Posted by 2MTTundras

Nope, not comparing gas to deisel.... I know that's rediculous. Just comparing price vs. satisfaction.... I'll try Mike again.

You should get through to him today. If you don't reach him the first time, let me know and I'll pm you his cell number.

[thumbster]

I really wish people would stop dwelling on how something performs on a dyno.

We're not dealing with a race vehicle here, but rather a truck that's driven on the street and is used to tow and haul things. Road tuning is the only way to get good real world driveability and usable power gains. Dyno results only give the tip of the iceberg and only when the conditions are right. You can loose 20 hp right from the start if you have a heat soak condition or if the cooling fan clutch locks up. Let's also not forget that you can't see any reliable numbers in the lower rpm band due to the auto trans not wanting to see full throttle in higher gears and the torque converter not being locked because of it. The list of variables goes on and on. You don't achieve part throttle performance and driveability from WOT tuning.

A/F ratios of 15.1:1 are no problem at all on a modern aluminum headed engine like the 5.7 Tundra engine. In fact it wouldn't surprise me if you'd see A/F ratios of 16:1 or higher under light cruise conditions. This is how you get better fuel economy and as long as you have a knock sensor in the loop and look at your EGTs, you're ok. If this engine can run on 87 octane with 10.5:1 compression, it can deal with leaner A/F ratios with slightly higher octane fuel and likely have quite a bit more part throttle economy to begin with.

Unichip is a good company and they support their product pretty well. I think they will be the leader for a while in piggy back tuning for our trucks - at least until someone else comes out with a flash tuner.

[2MTTundras]

Originally Posted by 2MTTundras

Nope, not comparing gas to deisel.... I know that's rediculous. Just comparing price vs. satisfaction.... I'll try Mike again.

Just talked to Mike O'Higgins and he was very sorry about the mapping mixup and said it would most definately make the pickup run terrible. They are sending me a call tag and paying for shipping to get it back and fixed. This is what I thought of Unichip when I bought the product from reading other posts, glad they came through.

That1seven,
Sounds like Mike O. has been out for a couple days, that's why you haven't heard anything back. When I got a hold of him he was just catching up. Give him a try again. Seems they definately want their customers to be satisfied...

[thumbster]

Originally Posted by NOLA_1906

Mike said that he has attempted to contact That1Seven and I believe 2mtt also. He said his phone calls and emails have not been answered.

On another note, Unichip has not stopped testing on the Tundra 5.7 & 4.7. They aren't stopping at simply adjusting AFR's and timing. They are investigating and making impressive progress on adjusting several other features from what I was told.

I'd be happy to help out and volunteer my truck for some of this r+d. I should get in touch with mike to find out whether I can help, since I'm in the Portland area.

[NOLA_1906]

Originally Posted by thumbster

I really wish people would stop dwelling on how something performs on a dyno.

We're not dealing with a race vehicle here, but rather a truck that's driven on the street and is used to tow and haul things. Road tuning is the only way to get good real world driveability and usable power gains. Dyno results only give the tip of the iceberg and only when the conditions are right. You can loose 20 hp right from the start if you have a heat soak condition or if the cooling fan clutch locks up. Let's also not forget that you can't see any reliable numbers in the lower rpm band due to the auto trans not wanting to see full throttle in higher gears and the torque converter not being locked because of it. The list of variables goes on and on. You don't achieve part throttle performance and driveability from WOT tuning.

A/F ratios of 15.1:1 are no problem at all on a modern aluminum headed engine like the 5.7 Tundra engine. In fact it wouldn't surprise me if you'd see A/F ratios of 16:1 or higher under light cruise conditions. This is how you get better fuel economy and as long as you have a knock sensor in the loop and look at your EGTs, you're ok. If this engine can run on 87 octane with 10.5:1 compression, it can deal with leaner A/F ratios with slightly higher octane fuel and likely have quite a bit more part throttle economy to begin with.

Unichip is a good company and they support their product pretty well. I think they will be the leader for a while in piggy back tuning for our trucks - at least until someone else comes out with a flash tuner.

Thumbster,

You summed it up in laymens terms pretty well. Thanks. After 15 or so dyno runs, I'm pretty sure he saw some effects of heat soak in addition to the Tundra actin' a fool on the dyno, lol. Unichip did not release dynos because of this phenomena with the Tundra. Its not because they were hiding something. Its because it would not be in their best interest to show dyno charts that did not reflect the real world performance gains that they achieved. Also, with the upgrades that they have coming, I don't think a flash tuner will produce anything that the Unichip can't. Just wait. I just refueled this morning and I'll be driving normally as I always do. Mainly city driving with traffic and occassional full throttle bursts on the Interstate. Stock I saw 13.8-14 mpg, with Volant intake, I'm at 14.2-14.3.