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Discussion Starter · #61 ·
Yes. For sure. You will notice the performance improvement with the untuned chip. I'm gonna guess that the untuned chip produces at least 15hp.
 

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I have been driving about 3 weeks now since I installed my unichip, and I can say there is a definite improvement in throttle response and increased overall power, especially noticable above 3000rpm.
I don't have a dyno available in my area, but the butt-dyno says it's all good, I'd guess somewhere between 15-20hp increase. I drive pretty aggresively and notice now the tires chirp and even squeal occasionally on the same roads I drive for work every day, (with the same driving style-which tells me it's got more go-power).
Overall, I'm very happy with my Unichip experience, especially since I only paid around $400 from an FJ owner who had to sell his ride (he never even got to install-was new in box!). Only other cost was $25 to reflash chip for my mods, and $16.95 for a dash switch to make the a/b switch look stock.
By the way, no problems with cel/check engine lights for either setting on mine-I told them to set it up for the more aggressive timing 91/93 octane.
Will post a couple of pics.....I mounted it under the passenger's side dash, out of sight, but easily accessible for future reflashing (after TRD SC installed)
Rob
 

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Wait,, am i the only one noticing how much Torque and HP you lose down low to gain 15hp (maybe) up high? 80hp/tq with the sensor calibrater when compaired to 180 hp/tq stock???

(scroll down to see chart)

Underdog Racing Development
 

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Check this piggyback out. Hell of a lot better. APR Power - Aftermarket ECU Eliminates Factory Rev-Limiter for Toyota Tacoma 4.0L I installed this 3 months ago and it is worth every penny.
Ouchies, 1300$. imma add that amount to my S2000 Fund. (saving for a down payment). id go FI instead of spending on this. However plus 20 tq/ 30 hp accross the entire rpm range is awsome. 43$ per HP at all rpms is amazing actually. +25 tq everywhere........very nice actually.
 

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Discussion Starter · #66 ·
Wait,, am i the only one noticing how much Torque and HP you lose down low to gain 15hp (maybe) up high? 80hp/tq with the sensor calibrater when compaired to 180 hp/tq stock???

(scroll down to see chart)

Underdog Racing Development
That can't be correct. As far as I can tell, I didn't loose anything down low. It looks like I gained HP and TQ at all RPM levels graphed on my dyno charts.... Unless I'm misunderstanding and reading something incorrectly on the charts I had done at PURE TUNING. Bottom line is I love the Unichip. I got mine cheap, got it custom tuned by a VERY good tech, and can't wait to see what kind of gains I see when I add the Supercharger.
 

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Discussion Starter · #68 · (Edited)
Not if you have a it custom tuned for about $600. Otherwise, yes. But it won't be as good as a tune. The ECU will adjust to what your want over time. Tune it and you'll zoom off the lot.
 

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Incredible summary of calibrating and tuning from a pro, as a newbie, i feel like tossing my airaid out today. Thanks gadget. no ecu for me, i m heading over to your website to learn....
 

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Discussion Starter · #70 ·
Incredible summary of calibrating and tuning from a pro, as a newbie, i feel like tossing my airaid out today. Thanks gadget. no ecu for me, i m heading over to your website to learn....
Could you explain what you're talking about? And perhaps provide a link to the website you refer to? And the Unichip doesn't replace the ECU
 

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can you use the unichip module and the Hypertech Speedometer Calibrator so i can calibrate for bigger tires and new gears and i will get the maximum horsepower???? can you use them both at once or is it one or the other???
 

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They both connects differently with different purposes so there shouldn't be an issue for them to work together. I have a Unichip and thought about the Hypertech Speedometer Calibrator just to my actual MPG. It's a little pricey to me and if I ever sell my truck I would rather it state a low mileage verse the actual.
 

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Go to DML Tire and Wheel Calculator
In the right hand middle of the screen enter 265/70/17 and your current tire size. In my case, 295/70/17 and select Compare Tire A to Tire B and click submit. The chart compares the two tire sizes and tells you the Speedometer Error and Odometer Error. Based on the output 100k miles on the original tires would be 95k on the new tire.

It's minor, but I found paying for the calibration tool was too high for minor benefits. Just my 2 cents based on my research.

Others have it here so it has value, I assume.

What Map is your Unichip programmed for? Do you see a difference. I believe it helps, I run 93 octane and my other map is 91 octane (TRD CAI/Cat-Back). I recently added a snorkel and feel like it performs better with a minor MPG increase.
 

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Welp, I'm pretty convinced. Probably will be getting a unichip to go with my DT Y pipe and Gibson Duals
 
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