Champion/GIAC 991.2 Turbo S hits the 1/4 mile...
#16
Now I get it. I was thinking why the MPH was a little slower than expected. So this vid was part of a larger production of Drag Times vs their 720S.
Before the vid Brooks from DT quoted the DA which was virtually the identical DA as the when the stock 720S in the NorthEast trapped 147mph a few weeks ago at a different track....but here at this track same DA, the 720S could only manage low 140's.
Sounds like this track is just a low reader.
Before the vid Brooks from DT quoted the DA which was virtually the identical DA as the when the stock 720S in the NorthEast trapped 147mph a few weeks ago at a different track....but here at this track same DA, the 720S could only manage low 140's.
Sounds like this track is just a low reader.
#17
Need to update your sig Lorenzo
#20
Extremely inconsistent results????
Seems like these cars and specifically these tunes (all tuners) have results all over the place. Stage 1 faster than stage 2. Stage 3 just as quick as stage 2.
Difficult to shell-out 15-30$k just to end up having a slower car than stock 🤦♂️
Difficult to shell-out 15-30$k just to end up having a slower car than stock 🤦♂️
#21
The second factor, and probably the biggest, is all the different variables that go into a 1/4 mile. Individual tracks sometimes produce better results than others, the track prep plays a huge roll, the weather, altitude, DA....all of these things can cause huge variances in results, even in the same car. There's also driver skill. I, for one, am TERRIBLE at running the 1/4 mile. I can never seem to stage correctly or get a great launch, whereas other people are great at staging the car at the line and able to shave a tenth or 2 off their times in that way alone.
I'm sure others can chime in with their experiences, but for me, I think of the track as a tool similar to a dyno. As long as you can pretty consistently manage the conditions when you're running, it's a good way to gauge progress or consistency of a particular car. But it's next to impossible to compare 2 cars running at different tracks, in different conditions, with different hardware, and say one is "faster" than the other. I think that's also one of the reasons that 1/2 mile races have become so popular.
#22
A tuned Porsche turbo is never going to be slower than stock unless there are mechanical/tuning issues.
#23
If all you care about is one quick sprint now and then, most tunes will do well.
#25
According to some people it will be slower so don't do it.
#27
Curious what kind of times you'll see after tuning and how much of a difference it makes from stock.
#28
Oh I knew you were. I appreciate the humor.... I’m trying to establish a good solid baseline on my car, then do one mod at a time to see where the real gains are? Be it an exhaust, tune, both, or even something different like I/C’s then tune. I’ve heard the exhaust on the 991.2 cars aren’t as restrictive as years past.
#29
I don't think the tunes are slower, necessarily. But COBB's stage 1 93 octane tune adds virtually nothing. A bit of a torque bump in midrange. They purposely detuned it with a recent update.
I think APR's 1+ tune is likely to be really good. 110whp on a Mustang dyno, and tested on a race track with pressure sensors throughout the intake tract.
If you ever want to make big power, you'll need a custom tune and for those, you have to understand that reliability *could* be a factor in some cases. A 700whp setup may dramatically lower the life of the turbos if you're doing road courses, as an example, because that isn't something the tune probably considers.
I think APR's 1+ tune is likely to be really good. 110whp on a Mustang dyno, and tested on a race track with pressure sensors throughout the intake tract.
If you ever want to make big power, you'll need a custom tune and for those, you have to understand that reliability *could* be a factor in some cases. A 700whp setup may dramatically lower the life of the turbos if you're doing road courses, as an example, because that isn't something the tune probably considers.
Last edited by solipsistik; 04-15-2020 at 08:30 AM.
#30
I don't think the tunes are slower, necessarily. But COBB's stage 1 93 octane tune adds virtually nothing. A bit of a torque bump in midrange. They purposely detuned it with a recent update.
I think APR's 1+ tune is likely to be really good. 110whp on a Mustang dyno, and tested on a race track with pressure sensors throughout the intake tract.
If you ever want to make big power, you'll need a custom tune and for those, you have to understand that reliability *could* be a factor in some cases. A 700whp setup may dramatically lower the life of the turbos if you're doing road courses, as an example, because that isn't something the tune probably considers.
I think APR's 1+ tune is likely to be really good. 110whp on a Mustang dyno, and tested on a race track with pressure sensors throughout the intake tract.
If you ever want to make big power, you'll need a custom tune and for those, you have to understand that reliability *could* be a factor in some cases. A 700whp setup may dramatically lower the life of the turbos if you're doing road courses, as an example, because that isn't something the tune probably considers.