This is what i'm trying to get to, the metrics people are using are so flexible it's impossible to draw a line in the sand.
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Daily sports car?
- Thread starter CriticalCore
- Start date
Shaman
Well-known member
> So a 2+2 car by design cannot have excellent handling? I'll challenge you on that all day.
Nimble handling. You're not going to make even a great GT car like mine compete with a Miata or a Super 7 on a tight parking lot slalom. Road courses tend to be more about corner speed, grip and power than about handling, FWIW. Think about transitions, tight corners and tricky, tight back roads - those are where sports cars come alive.
> Are these things trapping 130s on regular 91 pump gas?
My Turbo S trapped 135.99 on Canadian Tire 91 with the manual in the glove box and the toolboxes in the frunk. It won't go much over 130 or so with the worn, OEM tires I have now, it just spins too much, all four tires slip. I'm going with some Michelin P4S for my next tires.
> I think what could be defined as a "sports car" is more of a spectrum than a hard definition
That's an opinion, and an incorrect one. "Sports car" is a definition. Don't go to Webster for it, though. People seem to think that a great car should be called a "sports car" because it's fast or something - but that isn't the case. There are many, quite slow, sports cars. Bugeye Sprite, several of the older Super 7s, Triumphs, etc. are not fast cars - but they will hold very good corner speed and they are a joy to drive in that the driver very much can find the limits and exploit them. GT cars are all about power, grip and relative practicality ... a sports car can actually be a GT car but a typical GT car isn't a sports car ... 2+2 seating is usually the reason.
Nimble handling. You're not going to make even a great GT car like mine compete with a Miata or a Super 7 on a tight parking lot slalom. Road courses tend to be more about corner speed, grip and power than about handling, FWIW. Think about transitions, tight corners and tricky, tight back roads - those are where sports cars come alive.
> Are these things trapping 130s on regular 91 pump gas?
My Turbo S trapped 135.99 on Canadian Tire 91 with the manual in the glove box and the toolboxes in the frunk. It won't go much over 130 or so with the worn, OEM tires I have now, it just spins too much, all four tires slip. I'm going with some Michelin P4S for my next tires.
> I think what could be defined as a "sports car" is more of a spectrum than a hard definition
That's an opinion, and an incorrect one. "Sports car" is a definition. Don't go to Webster for it, though. People seem to think that a great car should be called a "sports car" because it's fast or something - but that isn't the case. There are many, quite slow, sports cars. Bugeye Sprite, several of the older Super 7s, Triumphs, etc. are not fast cars - but they will hold very good corner speed and they are a joy to drive in that the driver very much can find the limits and exploit them. GT cars are all about power, grip and relative practicality ... a sports car can actually be a GT car but a typical GT car isn't a sports car ... 2+2 seating is usually the reason.
I've only used 91 in mine. Hard to believe 60?
Next time I straight line it, I'm going to try 94.
Make sure you switch early. I'm not sure how long the Corvette takes to compensate, but apparently VW takes a tank or two to adapt to higher octane fuel.
Yes, thanks. I had planned on running it near dry, filling with 94. Run that down to half, and fill with 94 again. Then burn half that off, and run it.(lighter).
I think the fuel mgmt compensates on the fly, but not sure.
I'm not going to try, but a tank of 87 would let you know in a hurry, I think.
It should respond much faster going down than up. The knock sensor will quickly pull timing (almost instantly). Going the other direction, the computer keeps adding a little bit of timing then watching, then adding, etc until the knock sensor hits.
Indeed, thing with petro 94 is I've read it's all show no go, it's been shown to be no better than 91 according to some Subaru STI owners on their forums
But who knows every car's different it might just work well in the C7Z
here's a link to the dyno I referred to:
Took my 2017 Z06 to the Dyno! Got vids & #s... - CorvetteForum - Chevrolet Corvette Forum Discussion
That 91 octane run is still better than a N/A vette but not significantly better which is how a C7Z should be, Those things really do need better fuel
As for Shamans 911 that is good trap speed on 91 octane almost no difference compared with higher octane runs
Too bad they don't sell E85 up here, these cars can pick up some signficant amount of power tuned for it
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Do they have enough fuel pump and injection for E85? Again, in the VW world, to run E85, the north american guys are adding multiport injection to supplement the DI and upgrading both fuel pumps. Huge numbers in the end but tons of money and work.
Shaman
Well-known member
Ultra 94 sucked a couple mph out of my trap speed, actually. It's lower in energy density than 91 Canadian Tire - which is 100% gasoline, no ethanol. Additionally, I believe the CT is more than 91 octane, to be sure that they don't face liability questions... 
Either way, my car works best on 91 octane pure gasoline. Ultra 94 is something I use when I get it... but independent testing from Porsche tuners in Canada says that Ultra 94 has similar knock characteristics to pure 91 octane pump gasoline (from Shell, but that's no longer a sure thing either, apparently).
When I put some 91 octane in the tank from McKewens, I had the car pull ALL power when I put my foot down entering the 401, presumably because of detected knock. That was interesting for more than one reason.
Either way, my car works best on 91 octane pure gasoline. Ultra 94 is something I use when I get it... but independent testing from Porsche tuners in Canada says that Ultra 94 has similar knock characteristics to pure 91 octane pump gasoline (from Shell, but that's no longer a sure thing either, apparently).
When I put some 91 octane in the tank from McKewens, I had the car pull ALL power when I put my foot down entering the 401, presumably because of detected knock. That was interesting for more than one reason.
So you were down to 300 hp?Ultra 94 sucked a couple mph out of my trap speed, actually. It's lower in energy density than 91 Canadian Tire - which is 100% gasoline, no ethanol. Additionally, I believe the CT is more than 91 octane, to be sure that they don't face liability questions...
Either way, my car works best on 91 octane pure gasoline. Ultra 94 is something I use when I get it... but independent testing from Porsche tuners in Canada says that Ultra 94 has similar knock characteristics to pure 91 octane pump gasoline (from Shell, but that's no longer a sure thing either, apparently).
When I put some 91 octane in the tank from McKewens, I had the car pull ALL power when I put my foot down entering the 401, presumably because of detected knock. That was interesting for more than one reason.
Since your car seems like a good fuel test bed, how is Costco 91?
Relax
Well-known member
So if it's a definition, where is it defined? So far all I can find are opinions. It would be great if we could just open up a racing rule book and see "Sports Car" listed as a class.
Shaman
Well-known member
OMG. Use oil.
Yes it's a definition. Been around a long, long time. And yes it's been listed in motorsports on many occassions. No idea who is doing so now. Remember, if everything is a sports car, nothing is a sports car.
I haven't tried Costco 91 in it. I think I was more likely down to about 20hp when the ECU pulled all power. I mean, the car fell on its face. Without the turbos it probably makes about 400hp... it's fun trying to stay completely out of boost and still dramatically out-pace traffic. On boost, though, the car really comes alive in terms of *torque*.
Yes it's a definition. Been around a long, long time. And yes it's been listed in motorsports on many occassions. No idea who is doing so now. Remember, if everything is a sports car, nothing is a sports car.
I haven't tried Costco 91 in it. I think I was more likely down to about 20hp when the ECU pulled all power. I mean, the car fell on its face. Without the turbos it probably makes about 400hp... it's fun trying to stay completely out of boost and still dramatically out-pace traffic. On boost, though, the car really comes alive in terms of *torque*.
Chevy hit it outta the park with their new vette mid engine
The 2020 Corvette Is at the Large and Heavy End of the Mid-Engined Crowd
Any close competition is double or more the price.
It's actually got some practical storage space in it too.
The 2020 Corvette Is at the Large and Heavy End of the Mid-Engined Crowd
Any close competition is double or more the price.
It's actually got some practical storage space in it too.
roadrash
Well-known member
Was just admiring a video someone posted of the C8. Thought it was a ferrari lol. Looks fantastic
Loved my aunt’s 92 C4 ZR1. Sure, the C5 and newer base engine has more power but, the memories of driving the Florida coast back in the day still bring plenty of smiles.
Cheap to obtain a decent clean example today. Wife won’t let go of the MGB.....lol. So it will remain trying to go fast in a slow car for awhile yet!
Sent from my iPad using Tapatalk
Cheap to obtain a decent clean example today. Wife won’t let go of the MGB.....lol. So it will remain trying to go fast in a slow car for awhile yet!
Sent from my iPad using Tapatalk
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