Gt3076 build finally done but what tune to get?

[aaronamerica]

Hi guys....I'm not really on here like I use to be years ago, but recently I finished my motor build project with a gt3076 turbo and now I need to get the right software for this turbo....currently I have the old tapp 630cc tune with the ford lightning mass air flow sensor that was used on my old gt2871 eliminator kit and I love the tune but it only puts out 320awhp at 25psi on the race gas tune with the new turbo.......originally I was going to upgrade to that 1000cc tune from tapp auto that was meant for people that was going to run lots of boost and bigger turbos but I recently found out he doesn't sell that anymore he carrys the meastro software which you can tune yourself.....but heck I know nothing bout tuning cars but from what I understand is that there is two versions of the maestro tune which is a 630cc and a 830cc file....what's the differnce??? Will it run without having t to tune it and still make good power?? I really want a tune similar to what I have that just simply runs and never have to play with the tune but
makes big power and able to handle running 30psi, my goal was to be at least over 360awhp.

What you guys recommend??....I thought about looking into the unitronic software...I see lots of guys on youtube making close to 400 and more with there software and turbo I have

[Crispy222]

This is my delema also as I build my motor and plan to go to something like a 30R in the future. It sounds like Maestro is the way to go for right now. The 630 and 870cc files are base files to get you running. You can run on these files every day, but you won't be making all the potential power and torque of your setup until its dyno tuned. There is a lot of tuning help out there if you're interested in learning. As far as I know Unitronic hasn't released any off the shelf tunes bigger then 440cc. Everything over that is a custom tune done in house or pay to have them come to you.

The up and comer is United Motorsport. They started primarily with vr6 and turbo software. Now they are branching out with 058 and 06A 1.8T stuff. They have a 630cc and run a Pro-MAF as their top tune right now for an AEB. I'm sure more will be done in the future as demand is seen.

Anyway you go, plan to spend atleast $1000 to finish off the setup.

[aaronamerica]

i wonder whats the main two differences between the 630cc and the 870cc file....is the 870cc a more agressive file???

[Crispy222]

More fuel potential = more boost pontential. A lot of ppl have a harder time with bigger injectors at idle and running lower boost IMO. If u want to run conservative 20-24psi then go with a 630 file. If ur looking to push the envelope and have the proper setup (efficient intercooler, head work, tube manifold, upgraded fuel pump, ect) go with the 870.

Most companies will give u a free file upgrade if u have the means to flash it yourself later down the road.

[aaronamerica]

my goal is to run 30psi on race gas and 25psi on pump gas if possible... but currently with my 630cc and old ford lightening mass air flow tune it runs a lil lean if i run over 22psi

[Crispy222]

Adjustable fuel pressure regulator?

[aaronamerica]

yep i turn the thing up to like 6bar and the afr was perfect at 11.5-12.0afr but after like 4 test runs it leaned back out again at like 13.0afr which im assuming the ecu is seeing extra fuel and readjusting i guess

[Crispy222]

At WOT the ECU runs open loop on the fuel map. It does not take the O2 sensor into account. How are u monitoring or logging the A/F? I think it would be wise to give Chris Tapper an email. Maybe a few logs and he can make some adjustments to your file. I don't think you should have to run nearly that fuel pressure. Maybe u are at the limit of the injectors. If u can log the ECU u should watch the injector duty cycle and see if it runs near 100%.

[aaronamerica]

i have the old tune with the ford lightning mass air flow and theres no support for that but that tune was originally for my gt2871 elim kit i had but now i need to upgrade tune for my new gt3076....but i have a aem afr gauge that i monitor afr.....what block can i monitor the injector duty cycle,


I guess my real question is what file should i go with between the 630cc or the 830cc and is there really a diference between the two besides just more fuel....if i could save money and keep my current 630cc injector i would but overall my goal was to make over 360awhp, so if need be i would pay extra for new injectors if need be to have lot more power

[flynnr]

you ran a 12.6x on this tune?

[aaronamerica]

you ran a 12.6x on this tune?

yep and it was 96 degree's outside....but i did remove my back seat and speaker box, not really sure how much that helped lol

[aaronamerica]

ok guys update...

hey guys I finally got everything worked out with the car so now its time for some tweeks



heres the deal i ran logs and found the car knock retard kinda high i guess....at 5800rpm through 7000rpm im getting 11.25 knock in 2,3,4 and cyl 1 im seeing 9, this is at 23psi on the 870cc pump gas file, should i pull time where im getting knock or whats the best way to get rid of this

[Ketamine1]

Meth...

[B5Burn]

Aaron, where are you on this, now?

[biketsai]

Aaron, where are you on this, now?

http://www.audizine.com/forum/showth...Maestro./page4

[aaronamerica]

everything is going very well using Maestro, I have created two tunes for the car, one pump gas tune and one e85 gas....the pump gas tune still needs more tweaking but at the track it went 12.8@104mph and only 14deg advance timing with 23psi but what I thought was impressive was the 8th mile time which was 7.9@86mph with a 1.5 60ft, now the e85 tune is stupid fast and Im running 28psi and 24deg advance timing but I havent raced it at the track yet but I have raced several fast cars on it, one was this 2nd gen big turbo rx7 that pulled me like 2 cars on the highway on my pump gas tune but on the e85 tune it was bad...I pulled him several bus lengths lol

[M-Hood]

Was the 7.9@ 86mph on the 12.8 run? Because that doesn't seem to add up unless your car was running really bad on the big end. The 7.9 should have ended up a 12.1 ET(1.54 x 1/8 ET). What were your other 1/8th ET on the other runs that day?

With a good 1/4 mile run a 12.8 should have a 1/8th ET of around 8.3 which is about right for a 86 mph trap, 7.9 ET at the 1/8th would have at trap speed of about 90-92.

[aaronamerica]

Was the 7.9@ 86mph on the 12.8 run? Because that doesn't seem to add up unless your car was running really bad on the big end. The 7.9 should have ended up a 12.1 ET(1.54 x 1/8 ET). What were your other 1/8th ET on the other runs that day?

With a good 1/4 mile run a 12.8 should have a 1/8th ET of around 8.3 which is about right for a 86 mph trap, 7.9 ET at the 1/8th would have at trap speed of about 90-92.

Yep the car runs bad in 4th gear....the pump gas tune is hard to tune without it pulling so much timing but I decided to stop playing around with the pump gas and i just moved on to e85 but my average 8th mile times were 8.0-8.2@84mph and the avg quarter mile times were 12.9-13.0@104mph but I believe the key thing that's killing my pump gas and tune is the plugs and the aftermarket ICM but e85 fixes all of that lol

[M-Hood]

Is the ECU pulling so much timing in 4th gear because the IAT's are climbing too high?

[aaronamerica]

to be honest my pump gas tune simply just need more tuning done, but I know for sure im running a nice amount of timimg down low, so maybe i need to run less timing down low and maybe that will allow me to run more timing up top......but for some reason im not getting a reading for IAT but i havent tried it using vagcom, is this beacause my car is a 1998?

[M-Hood]

You should still be getting a IAT reading.

[aaronamerica]

Hey what block is that?

[M-Hood]

Hey what block is that?

Block 004.