Ok quick story, THE SIEGEL and I headed out to tune my sti for Meth this afternoon. We made a couple of quick passes on the gas that was in the tank(chevron) then we filled up at QT. Car knocked first run no changes. The Moral of that story, DONT BUY GAS FROM QT. Now the important part... Theoretically if we had of raced a brand new SRT-10 Viper we would have pulled him back in after he got the jump plus three cars....in theory 26 PSI on Meth and Crappy QT gas is fast Matt
Nice. Alex told me about this earlier, I bet your car would put most diesel trucks to shame in the torque department now.
hmm... this is little different from what I've heard from Scott. When he was tuning my car, I had full of BP gas. My car would take out timing randomly during tuning section. We added about 5 gal of QT gas, and then the timing curve came back to normal. Does this mean that Chevron gas is more superior than QT?? cliff note : Chevron > QT > BP
the QT issue has come up a few times recently... i wonder if they changed suppliers or if their qc is getting lax
As far as I have been able to tell. BP gas always seems to be down a bit from other stuff. The QT on Satellite always HAD "good" gas - it always seemed to run appropriate timing for the setup, and there were a NUMBER (10+) of times that cars seemed to have bad gas, and after filling up at the QT they got QUITE a bit better. Maybe 6 weeks ago I had the first round of bad gas from our QT. I had a car that was just down on timing, I thought it might be bad, and then when they brought the car back having filled up at Chevron, it was normal. Then I had one that ran great all day, and when I added a few gallons at QT it lost a few degrees. I have since had cars that after having been filled up at QT ran poor timing and when we went down the street and added some Chevron ran VISIBLY more timing. So, I have to revise my previous statements that I was okay with QT gas. Now it's Chevron, then Shell... SS
Man that sucks about BP gas. We don't have Chevron here and Shell is way out of the way for me. We have BP/Amoco everywhere though. Scott what is your opinion on Exxon gas as those are plentiful here as well?
Well this is good news. I just moved to a new house and I cannot get my usual QT gasoline and I was taking it easy on the car until I felt comfortable with the chevron gas I was using. Its good to hear that I am not missing anything with QT now. PHEW.
I agree with the timing issue as well. I was pulling 4th gear and consistently running 10 degree knock correction. This was on Texaco gas. Filled in 10 gallons of QT (right by SOG) and KC dropped to 9 degrees above 5k rpm. And I rode in Matt's car. Its FAST!!!
I'm not sure if we will be able to get it on the dyno before One Lap or not. Ill post up numbers as soon as I have them. Matt
This is exactly what my car is doing on the BP gasoline Milo. When I was living in Florence I was using Shell gasoline. Now there isn't a Shell where I live now within 50 miles so I used BP. I drop KC to 9.5-9.0 after 5500 rpms! Gonna try Exxon and then Citgo. We don't have Chevrons here....sucks.
the only option around me besides QT and BP is Kroger.. gas there always seems good and i save money with kroger plus
I think gas stations are swithching over from the winter blend of gas to the summer blend, I think they have to be switched over by May 1st. I don't know how that would affect performance, but I imagine it could make a difference.
No youre doing it all wrong you put a drop in his mouth and he spits out a spread sheet with all vital info. its like the RM+2 method but its calle the SS+2 Matt
Here is an article that says we do change types of gas for seasons http://www.msnbc.msn.com/id/14806032/
us evos like Shell gas. never had a problem with QT but the car runs differently on shell. i thought it wa just me but i have 2 other guys who say thesame thing. it just pulls harder and smoother on Shell.
I have to agree^^^I use shell religiously, and with all 91 oct. slop to use out here, I have had 0 problems. Although I hear there is 100 oct.:drool: up by the airport in Phoenix....hmmmm, not too far from work, oh and the C16 in the shop...
Can a lot of this variation be due partially to the station's tanks and pumps? I try to go to a Chevron, Shell or BP/Amoco stations that have separate nozzles for each fuel grade. Has anyone read anything about how much lower grade fuel a car can ingest from filling up using pumps with multi-grade nozzles? Note: I also avoid Citgo like the plague, since they're owned by a bunch of Venezuelan commies.
I live downtown, and our gas officially blows. A couple of the stations, from different brands, have proven to be crap. Just thought I'd let that out there...
In the past, I have had decent gas from Texaco (Peachtree and Collier) and Chevron (Spring and 10th). Next time I fill up there, I will look at the knock correction and let you know.
I use Shell and usually empty out the lines before I fill up since the person before doesn't fill with 93.
Milo how are you monitoring your KC? Are you watching on a laptop or are you using some external visual realtime display? It would be nice if I had the DeltaDash display thingy that you had on your bugeye....didn't it display KC?
i m the same way with "Hitsugaya" ^^ (bleach is awesome) if they put in 93 before me im happy. i usuall look for shell with 3 nozzels for the grades. luckily i hav 2 in my area where i usually out in gas.
you can always throw a bit of race gas or octane booster to make sure it stays at safe levels... maybe that's dumb...?
^^^ Not dumb at all, just most people don't have easy access to race gas. That is a good solution though. 1 or 2 gallons of race gas would MORE than cover the worst gas out there... hmmm... 12 gallons of 87 at $2.65 plus 2 gallons of c16 at $8.50... nope, not worth trying 87... oh well SS
theres a pump in old towne roswell that sells 105 i think! And it's a shell station. I' might head up there today...hehe.
if you are thinking about the one off of Crabapple, I think the ethanol concentration is especially high for that blend, the gas is blue in color if I remember correctly. If you find anything different, please let us know.