mentl

I've owned a GTech Pro for about a month now, and I've been using it several times a week. I thought I'd share some of my findings.

First of all, I have a 2000 TL-P. Only modification is H&R Sport Springs. All runs have been made late at night on chilly roads (outside temp about 35-40). The only measurement I ever really care about is 0-60, so that's all I'll discuss. All runs were in Sportshift mode.

My first run, I didn't really punch it because I knew I would probably spin. I got 7.4.. I was expecting over 8 seconds on a very very conservative launch so this was a surprise. 7.4 seconds without trying!

That piqued my interest, so the next few times I tried harder and got 7.1. In fact, 7.1 is a time I got very consistently for quite a while. One time, I got as low as 6.86.

A lot of guys on this forum advise "just stomping it." Well, that may be OK if you have sticky tires and a nice warm track.. but I tried it once and just SPUUNNNN the tires (EEEERRRRRR!!!!!) No good. Maybe when it gets warmer out...

Well, last night I decided to try something new. I decided to try this:

1) Start from a stop, zero the GTech Pro
2) Touch the trottle lightly to get the car rolling
3) Once rolling for a fraction of a second, STOMP IT

My first run got me 6.79! I knew I could do better, so I tried again. 6.75! And that was with ZERO wheel spin. (Z-E-R-O)

Conclusion so far: the launch is very important and has a significant impact on the 0-60 times. I would never have realised this without the help of a GTech Pro.

So next, I'm going to work on trying different launches. I don't feel that the 6.75 time was the lowest I can go - I believe that because my launch was still conservative. I think that by just working on my technique I can trim off another 1/10th of a second or more.

Those good runs above, I was concentrating too much on NOT making the wheels spin. By just focusing on how fast I put the pedal to the floor, I know I can get better times.

I haven't tried torque braking yet, and probably won't even bother if I start hitting 6.6.

If anyone is interested, I'll continue sharing my findings as I work on my launch. If you are interested in lowering your times, I STRONGLY suggest that you buy a GTech Pro. I have learned a great deal just by using it several times, much more than trying to learn technique by reading second hand. GTech Pro provides instant feedback, so you know if what you are trying is good or bad. It is invaluable!

One more note about the GTech Pro, if you're not sold yet. If you're wondering "should I get one? Or maybe not?" consider this: I trimmed off 4/10's of a second just by learning good technique. I'd need around 40HP more to do the equivalent with mods! So $140 is a steal. Personally, I got mine cheap of ebay

OK long post. Sorry.

Red Hot TL

Nice... What else can GTech Pro test? I'm sorry to say this but it sounds like an ad for the GTech Pro

BlackShadow

Those are great times for a stock (engine-wise) 2000 TL. Damn I need to get that now or I can just borrow yours.

BTW, keep working on it and let us know.

mentl

Some how it did turn into an ad for GTech Pro I didn't mean it that way; I meant it to advocate getting out there and actually measuring your performance rather than looking at magazine times or whatever.

You can read all about GTech Pros HERE

Dbone

I have a 200 tl-p g-teched it in the summer. Bone Stock ran a 15.4. 1 passenger in the car either 5.4 or 5.7 0-60 can't remember. Lot's of wheelspin at launch ( I think it's from the stock tires, more for comfort than performance) Just installed cai before I put it away for the winter will post my results when I run it with cai.

Fury TL-X

Tried using my G-Tech on a skidpad a few months ago. I pulled .91Gs in my NSX using street tires after they had cooled down. I'm gonna try it again next week after running a few laps on a track to warm them up and see if I can get it a bit higher.

Don't know if it's accurate, but it's closer than guessing.

Blazin TL

5.4-5.7 is fast, do you mean 6.4-.6.7?

Beiruty

I waiting for this www.gtechpro.com/competition.html

That is a mofo. I hope the price is reasonable.

Dbone

It could of been I really only paid attention to my quarter mile time.

Blazin TL

hey it might be, it ur TL is runnin 5s for 0-60 i'll trade you my 2001 TL, haha...

BMW74

Sorry, I have one word for those times.....Impossible.

Gtech's don't give very reliable times as far as I know.

BlackShadow

Let's clear this up before you get flamed and burned to death. How can I put this nicely, there is NO WAY IN HELL you can get 5.4 or 5.7 0-60 for a 2000 TL (and with 1 passenger). Even with crazy mods like I/H/E, SC, RES, etc... can we reach those times (well with enough $$$...yes:p).

So can you please clear this up for the rest of us.

Dbone

Now that all of u are questioning the 0-60 in the 5's I'm sure it was a 6.4 or 6.7 but like I said I ran a 15.4 quarter mile on the gtech and that's what I gteched it four the quarter mile and not the 0-60. So get off my case ::p :p

initialD

I did 5.4 also ,but i was going downhill.(j/k)

SL1200MK4

I think Torque brake will help.

and if you manually shift from 1-2-D3 will allow you to hit a higher rpm in 1st gear, although I don't think it will actually reduce the peak hp had already occur in lower rpm...

If you got the time, please try troque brake, I will love to know the result... and perhaps different rpm, too... like 2000, 2500, 3000 rpm...

AC

I think 15.4 1/4 mile time should give you a good idea abou the accuracy of GTECH...

With I/H/E/VAFC, you couldn't hit 1/4 in 15.4 by yourself, let alone a passenger.

I believe you did get those readings as I got high 13's for my auto 540 before I put anything in it.

mentl

Actually, 15.4 1/4 mile is right in the middle of the numbers found by auto magazines for a 2000 TL. See here. I don't mean to start a numbers war, but that sounds pretty reasonable.

As far as the accuracy goes, the gtech is very sensitive to things like inclined roads, obviously.. but people who have run them at a 1/4 mile track (do a search on google.com) have found them to be as accurate as advertised (within .1 sec).

No matter to me though; the greatest benefit I've found is not that it's 100% accurate. I'm impressed that it allowed me to run the same test over and over and allow me to judge whether a change in technique (and soon, an engine mod ) improves or degrades performance. (in other words, it's not the absolute values I care about, only the deltas)

AC

OOPS! My bad, for some stupid reason I thought 14.4...Sorry guys! 15.4 should be pretty realistic and low 15's achieved fairly consitently by mags.

tdoh

Wow--there is someone who actually knows what the primary benefit of using a Gtech is good for! Isn't it sorta advertised as a tuning aid? I mean, you don't really need a Gtech to tell you how fast you can do 0-60 or 1/4 mile runs when a buddy with a stopwatch will do.

Tony

Fury TL-X

mentl,

That's was superbly put. Well said! Now I gotta go test skidpad rating again this week at the same track to see if any improvement.