Today I took a 600 mile highway trip. I was passed by a hyundai tiburon and I decieded to keep up. He was doing between 90 mph and 105 mph. We drove like this for about an hour. My cavalier is almost stock. It has a turbo muffler and michelin hydroedge tires. I use premium gas and moble one oil. The car cruised beatifully at high speed. It help the road and felt very very comfortable at that speed. I believe I could have gone 130 without the speed limiter and the car would have still been stable. It had plently of power and easily accelerated from 90 to 105 in fifth when I floored it. The rpm was 4000 at 105 mph and the car was not straining in any way. I know the tires make a big difference, but the muffler, slippery oil, and premium gas was helping too. The J body feels much more expensive than it is and it out performed my caprice highway patrol cop car in handling at this speed. The engine sounded really good and my muffler ( now broken in ) was giving a nice low sports car sound. The temperature gauge did not rise and I felt this car is capable of cruising at 100+ mph all day with ease. This is a very nice car and I am glad i bought it. 30+ mpg too. Wow. what a car.
btw not trying to be mean or anythign... but I don't see the point of this htread... let alone in the performance forum
He is enjoying his car guys. Cut him some slack.
thats all fine and dandy but what does that have to do with performance?
honestly the oil, muffler, and gas did nothing for performance on your car. and yes this should go in general or off topic. and theres a big difference between 105 and 130 when it comes to handling and braking just cause it feels ok at 105 it all changes at higher speeds. enjoy your car and no doubt the mobil 1 is a good choice for taking car of the motor but browse through the performance FAQ and the other forums to learn about upgrades and what helps your car and what doesnt cause higher octane doesnt help any on a stock engine
The one, the only, ME.
Yeah everyone know the amazing stock J Body suspension is designed for speeds well over 130 mph, What was GM thinking when they decided to keep people from going over 108mph?
15.71 @ 87.9mph 9-17-05
stock suspension suck. doing over 105 with just new rubber is not safe. ...
And premium gas is just a waste of money for a stock cavalier.
Are you guys crazy? Premium gas is great for gas mileage. And if you know anything about how octane works then you know its great for an engine because it keeps the engine running rich on a stock setup and makes it run cooler.
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And premium gas is just a waste of money for a stock cavalier.
That comment was a WASTE. Geesh. Leave the guy alone, he is just happy about his car.
-Stan
I understand that he's happy, I'm really happy with my car. Our car are already running rich from factory....
Pre- Gas is alot different from stock- The difference is deff. Noticeable- And I think if a Guy wants to post his PRO's about his Cavalier I say MORE POWER TO YOU!!!! And again if he has an LS Sport model he may have the Sport Suspension which is a very nice upgrade from base.
BTW nice choice in oil but theres a Couple other ones you could give a Try like AMSOIL and theres a Really good Canadian oil that i can't think of off the top of my Head but they state that you wouldn't have to change it for about 7500 miles and that even adding a little bit to your existing oil would help alot!
I love my Cavalier also....I'm glad you had a Great Experience!
idk, but when i use premium, i get better gas mileage. thats why i put it in the tank.
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LSportin', 2 door, 5-speed, ecotec, and its in ultra silver metallic.
^ my cavy of course.
i used premium once and it sucked ass for milage and performance. I usually put 89 oct in cause when it gets warm out it helps and when its cool out it doesnt affect performance that much. I remember over the summer with just 87 oct, in the middle of the day when i would floor it my car felt like it was fallin on its face then i decided to try a lil high oct gas and the 89 seemed to change the feelin a bit.
http://www.cardomain.com/ride/827643
ON TOPIC:
Glad your happy with your car. Add a header, full exhaust, and some nice rubber then see how it performs. My car was an ok highway car, now with the header and cat-back it loves highway speeds.
TO THE HATERS:
Stan Mathers wrote:Are you guys crazy? Premium gas is great for gas mileage. And if you know anything about how octane works then you know its great for an engine because it keeps the engine running rich on a stock setup and makes it run cooler.
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And premium gas is just a waste of money for a stock cavalier.
That comment was a WASTE. Geesh. Leave the guy alone, he is just happy about his car.
-Stan
Quick Lesson in economics.
Your paying around 50cents more per gallon that those of us using 87.
Taking current prices here (all highway miles)
2.57 regular 35mpg aprox 7.3 cents/mile
3.07 premium lets say 40mpg to be optimistic aprox 7.6cents/mile
if in fact you are actully getting better gas mileage its minimal at best.
Now lets look at the more real scenario, premimum gas doesn't give you better gas mileage.
3.07 premium at 28mpg 10.9 cents/mile so your cost is about 30% more for running premium instead of regular.
Yes i've tested this, it's just another myth. Use what your car is designed for.
-Chris
93 is not .50 more than 87, atleast not here. .30 at the most.
2012 HD VRSCF
2010 Ford Explorer
2006 Ford Ranger
2004 Chevy Cavalier
Fire Fighter wrote:93 is not .50 more than 87, atleast not here. .30 at the most.
The point is, it's more expensive with no performance gain.
Thanks IamRascal, I was hoping someone would clean up the mess (of misinformation).
Quote:
The point is, it's more expensive with no performance gain.
He didnt clear up anything. He totally ignored my point about the engine itself running cooler. High octane is better overall. So what if its more expensive? Different strokes for different folks.
-Stan
^ do you know engine at all?
High octane mean it take more sparks/heat to burn it. So the "unburn" gas is just making carbon deposit in the engine/exhaust so it's not better.
Better gas mileage? yeah from your foot.
He get less power from high octane than lower octane.
You only use high octane when you need it. IE: alot of timming advance, boost or nitrous.
None of witch he had so it's plain useless.
And before you say high compression is another factor, it's not really. You can have an high compression engine with close to 0° advance timming and run 87 octane. Engine desing as something to say in this too. The Eco is made for 87, use 87.
You want to clean the engine so you use high octane but all you do is make it worst. If you want to clean the engine and manifold, use water/alky injection.
Gilles
2.3 Ho
^ we have to meet next year Da Ghost. Have you seen a Red Gtz with a blower? I got a friend in St-martin with a red Gtz with a cowl induction hood.
Gilles
2.3 Ho
nah, but I'll be happy to
93 octane on a stock ecu is a waste they are programmed for 87
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
premium is only 10 cents more per gallon in Kansas. At high rpm's your engine is advancing the timing and in hot weather I don't want any pinging that might retard the timing a little . Eco's have fairly high compression and most other cars with over 10-1 use premium. Gm does not want to state their cars need premium, but they will run the best on it. Plus shell has twice as much detergent. I have switch back and forth and I really think it runs better on premium. I don't hear any pinging, but I have heard pinging on my Lt-1 caprice with 87 and the manual says to use at least 87. Anyway, the 04 cavalier is nice little car. I think MICHELIN HYDRO-EDGE ARE GREAT TIRES. You won't believe the difference. The muffler gave me some slight gains in high rpm's too. Many dyno test have proved that almost any car will gain horsepower with a muffler that flows better than the factory muffler.
did you even read my post? The timming of the eco is lower than let say an Ho engine so you don't need 91-93 octane even tough your compression is 10:1. It's not only compression that counts. Engine desing as alot to do too. Btw, you won't hear any ping with the Gm 4cyl since the knock sensor is suppose to do it's job.
Gilles
2.3 Ho
