difference bet legacy gt and spec b

copper_shot · Postby **copper_shot** » March 4th, 2009, 12:35 pm

b18b_turbo wrote:I kno its a bit off topic but....

i bought a GTech Pro yesterday....

Ran my legacy with bilsteins with the weight set at 3200 lbs

Got 14.01 secs, 267 hp A/T

lol the gtech is off, by about 3 seconds or more...

i got one and tried it on a couple vehicles including my legacy

swift gti funatic · Postby **swift gti funatic** » March 4th, 2009, 2:08 pm

swift gti funatic wrote:question tho... does N&M (neal and massy) bring in the legacy gt wagons?
last time i checked i only saw n/a versions... can anyone verify this?

Alpha_2nr · Postby **Alpha_2nr** » March 4th, 2009, 2:21 pm

copper_shot wrote:
b18b_turbo wrote:I kno its a bit off topic but....

i bought a GTech Pro yesterday....

Ran my legacy with bilsteins with the weight set at 3200 lbs

Got 14.01 secs, 267 hp A/T

lol the gtech is off, by about 3 seconds or more...

i got one and tried it on a couple vehicles including my legacy

The G-Pro can be accurate-ish if setup right. But many times I've seen it give rather "optimistic" results of hp, and 1/4 mile ET's.

I had gotten 13.9 1/4 mile ET from a G-Tech pro on my WRX when it was bone stock......as if :roll:

There's no way my car could have been doing such a time...even if there ice cold air outside. Stock with just a basic reflash, that car should have been doing slower times, esp. with my lazy left foot.

15devils old Legacy was running! His car used to pull amazing from the few times I saw it around....esp. with the higher boost from that reflash.

b18b_turbo · Postby **b18b_turbo** » March 4th, 2009, 5:03 pm

15 devils, copper shot, knight 1

So I researched the accuracy of the Gtech, its is damn well accurate....as in +/- 0.01% .........lets say 1% for argument sake

But the car is not running 14.1. I ran it again by the strip there by the Nagar, what i observed is that in one direction i get 15.1 and in the other direction, i get the 14.01. This is a huge difference so i concluded that in one direction, the wind blew towards me, and in the opposite, there was a tailwind, pushing the car.

Yes i verified this by checking the wind direction at the site and low and behold, the GTech's manual also spoke of wind interference. On these runs, I also re-callibrated the rpm reader and stiffened the adjustment on the mount.

So im guessing the average 1/4 mile time of my car is (14.1 + 15.1)/2 = 14.6 give or take 1% of the average

copper shot i do not believe that the gtech can be off by 3 seconds or more...which GT is going to do 17's

.......daz slower than an SiR!! If you got such high values with your legacy, I am sure you didnt set it up right, because I think your car pulls great! Be sure to check that the RPM real time reading is responsive, it gives you an idea of how well the device is interacting with the car

.
I posted the results initially because it seemed optimistic to me....just wanted some feedback, i think 14.6ish is a reasonable value for this car . I have no mods YET, bought this thing to record stock performance and gauge every upgrade as i go along

....just gets serviced every 3 mts....

15devils · Postby **15devils** » March 4th, 2009, 7:53 pm

again,all my car had was a ecutek reflash and a k&n drop in filter,and I did 15's on 19psi.Not disputing your time or anything,but just wanna know what mods you did.My car was auto,ran it on sport mode and did the 15...ran it on manual sport and I did 16's :shock:

I'm sure if I had more practise,i'd bring it down to high 14's

Alpha_2nr · Postby **Alpha_2nr** » March 4th, 2009, 8:22 pm

^Ditto.

Either that your car had a REALLY bad day, or b18B_turbo runs on VP racing fuels.

Here we have TIMED....TRACK PROVEN result....for a car putting out power well above what any stock LEgacy Spec B would ever do.

And we have a result from a G-Tech Pro, for a stock car, which is (claimed) to be lower than the above.

I rest my case :wink:

copper_shot · Postby **copper_shot** » March 4th, 2009, 9:59 pm

b18b_turbo car is bone stock, an Automatic GT as a matter of fact...

i tried this G TECH in my laurel, RB20 N/A , AUTOMATIC, and i got 14s
entered all the correct settings, exact weight of the car, pitch factor everything.
the RPMs were reading correct as well.

i think the pitch factor or some other settings is a bit off on your gtech set up.

copper_shot · Postby **copper_shot** » March 4th, 2009, 10:02 pm

b18b_turbo, also how are you launching your car? mash gas and go?
or do you spool up?

b18b_turbo · Postby **b18b_turbo** » March 5th, 2009, 12:14 am

copper_shot wrote:b18b_turbo, also how are you launching your car? mash gas and go?
or do you spool up?

Hey fellas, I just came back from running the car 5 times again to test whether my results are true or not, the times were consitent 14's at 93 to 97 MPH.

Launching is mash and go from when the Gtech says "Launch when ready", i too afraid to spool up on auto tranny.

wrxdevil stated that his legacy did 15.03 at camden as his best time. Mind you, times at camden are done using the lights, this incorporated the time you take to respond (reaction time), and the the car has to spool up etc.

The GTech on the other hand STARTS the timing from the moment the car starts moving and it senses a change in the G force......hence eliminating reaction time....which is roughly a second. I think that is the reason for this....that is my only explanation.

copper shot, wrong settings on the gtech will not result in a wrong quartermile time, fact being that the timer starts when the G force is picked up and stops when the quartermile is passed, the weight etc is used to caclulate net torque and hp, not 1/4 mile time.

I never did any mods to it, i dont know if the ecu came remapped, i would like to check though.

How bout if we meet up a day and do some friendly runs?

What do u all say? I would really like to get this crap cleared up....

15devils · Postby **15devils** » March 5th, 2009, 12:30 am

i kinda mess up the shifting in the manual sport,so i left the ecu to do it the next time,and it made a BIG difference . made 3 passes and my times was decreasing each pass,so i guess practise would have helped,I also had the privilege to run wrxdevil's 06 spec C,on the h/way, lets just say it felt like i was going south and he was heading north! :cry:

never saw a car move that fast!

b18b_turbo · Postby **b18b_turbo** » March 5th, 2009, 12:40 am

^^
How do you mess up shifting on tiptronic man??

pm sent

monk_t · Postby **monk_t** » March 5th, 2009, 5:20 am

easy...you over rev the car b4 you shift. The sweet spot is 4500-5500 rpm over that the gear will not go in until rpm's drop i think below 4800.

The car is well capable if spooling into 6500 rpm on launch...but just sit and wait for 2nd gear if you shift at that rpm. I say leave it to the ECU to shift in sport mode.

b18b_turbo · Postby **b18b_turbo** » March 5th, 2009, 8:03 am

monk_t wrote:easy...you over rev the car b4 you shift. The sweet spot is 4500-5500 rpm over that the gear will not go in until rpm's drop i think below 4800.

The car is well capable if spooling into 6500 rpm on launch...but just sit and wait for 2nd gear if you shift at that rpm. I say leave it to the ECU to shift in sport mode.

I dont think so, i shift every gear manually....well i reach into 3rd then have to easy off....i shift at 6600 rpm. If over revs on 1st sometimes, when this happens, i get a time of 14.9-15.1, if i get past 1st smoothly, its 14's for sure. The ecu shifts too early. you will get high 15's or 16's i believe

15devils · Postby **15devils** » March 5th, 2009, 9:45 am

I shifted @ redline......

Alpha_2nr · Postby **Alpha_2nr** » March 5th, 2009, 9:55 am

The car is well capable if spooling into 6500 rpm on launch...but just sit and wait for 2nd gear if you shift at that rpm. I say leave it to the ECU to shift in sport mode.

Correlates with this:

My car was auto,ran it on sport mode and did the 15...ran it on manual sport and I did 16's

but not this:

if i get past 1st smoothly, its 14's for sure. The ecu shifts too early. you will get high 15's or 16's i believe

Ragnarok · Postby **Ragnarok** » March 5th, 2009, 9:58 am

15devils wrote:I shifted @ redline......

Thats overrev for sure.....

15devils · Postby **15devils** » March 5th, 2009, 10:49 am

^^yeah, I was still learning out the car and stuff,but some STI man tell me to shift @ redline,is only after I realize that he was still learning too,but I feel the best time my car woulda do was 14.8-15.1,I can't see it doing better than that for what it had.

Flex030 · Postby **Flex030** » March 5th, 2009, 12:49 pm

Knight1 wrote:15devils old Legacy was running! His car used to pull amazing from the few times I saw it around....esp. with the higher boost from that reflash.

I would like to highlight the word OLD in this comment...

ketch huh self eh.... :lol:

This is still a best ride, in very good condition and even faster now :twisted:

(Trust me I know).

Flex030 8-)

b18b_turbo · Postby **b18b_turbo** » March 5th, 2009, 1:41 pm

15devils wrote:I shifted @ redline......

maybe im seeing things :oops:

Alpha_2nr · Postby **Alpha_2nr** » March 5th, 2009, 2:09 pm

Flex030, waaayy ahead of you sir........yes I do know that you currently own 15devil's "former" Legacy.

You forget that you were "assisting" me with a decision on the scoobytnt website?

15devils · Postby **15devils** » March 5th, 2009, 2:21 pm

lets call it "the flex monster" instead

b18b_turbo · Postby **b18b_turbo** » March 5th, 2009, 2:28 pm

^^
like it does real get on in a fete awah? :lol:

Flex030 · Postby **Flex030** » March 5th, 2009, 3:52 pm

oh gawd oooo, ah boy cah hide out here nah. (sleeper)

Knight1 what's your name on scoobytnt btw? (don't mean to go off topic)

monk_t · Postby **monk_t** » March 5th, 2009, 10:12 pm

b18b_turbo wrote:
monk_t wrote:easy...you over rev the car b4 you shift. The sweet spot is 4500-5500 rpm over that the gear will not go in until rpm's drop i think below 4800.

The car is well capable if spooling into 6500 rpm on launch...but just sit and wait for 2nd gear if you shift at that rpm. I say leave it to the ECU to shift in sport mode.

I dont think so, i shift every gear manually....well i reach into 3rd then have to easy off....i shift at 6600 rpm. If over revs on 1st sometimes, when this happens, i get a time of 14.9-15.1, if i get past 1st smoothly, its 14's for sure. The ecu shifts too early. you will get high 15's or 16's i believe

Dude pull your ECU setup and see where it set the cut fuel based on rpm, load etc. I pulled mine and its at 5500 rpm. From a stand still if you launch and run to 6k (may be a little more) it's not in 1st gear. Also if you at WOT and hit 5500 sit back and wait for the fuel cut to kick in (this is base on engine load, rpm and I think there is a map for temp as well).

Pull your ROM and have a look, if it's different...then the only way you can do what you say is if your ecu is modded from stock.

NOTE: This has been my observation from driving and reading the ECU logs/ROM config. If you can do what you say...hats off

monk_t · Postby **monk_t** » March 5th, 2009, 10:16 pm

We also need to factor ECU learned values such as fuel type, temp and driving style. If yours is more aggressive then it will tend to hold the gears a little longer, which may account for some of the better times.

IMO to get a true representation of stock reset the ECU then take it for a run.

Flex030 · Postby **Flex030** » March 5th, 2009, 11:26 pm

Hey guys why not settle this debate over a meet its about time Legacy owners (past and present) come together and discuss our experiences. Maybe we can do some runs to bring this discussion to a neutral ground.

Just an idea, suggestions welcome if any.

monk_t · Postby **monk_t** » March 6th, 2009, 5:06 am

I'm up for it once I have some lead time to keep my schedule clear.

copper_shot · Postby **copper_shot** » March 6th, 2009, 9:03 am

^ i'm in that too...

b18b_turbo · Postby **b18b_turbo** » March 6th, 2009, 9:14 am

im in........i also selling the GTech :lol:

you need to kick off the car for it to sense the g's to start the timer, the car moves slowly before the turbo begins to spool, hence the second difference. Damn Gtech...