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#31
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I'm making far more then 135HP at the wheels. The gear ratio is what is restricting my speed.
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I'm wondering if the lack of Cats is screwing with your O2 sensors. I know they are normally before the Cats anyway, but the higher flow of having no cats could cause a problem. You could try disconecting your O2 sensors to see if you get any improvements. Just a thought. |
#32
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My BS math aside, the point is that your car does not produce its peak power at 4500rpm, which (according to Pete, and I'll buy it) is about what it should be doing at the speed we're talking about.
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2005 RX-8 Grand Touring 2005 Outback 2002 Mercedes-Benz E320 wagon END OF LINE |
#33
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2005 RX-8 Grand Touring 2005 Outback 2002 Mercedes-Benz E320 wagon END OF LINE |
#34
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See now I'm just messing with you, because I'm making more than the Factory engine HP at the wheels (Note the Car Specs in the Sig.) . I'm running the Stage III kit. My limit in speed is because the STi tranny puts me at my 7300RPM redline around 135. I havent hit it yet. At 120MPH my car was pulling harder then it did stock from 60mph Last edited by mikecg; 10-11-2006 at 10:48 AM. |
#35
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At what gear are you doing 7300 at 135mph?
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2005 RX-8 Grand Touring 2005 Outback 2002 Mercedes-Benz E320 wagon END OF LINE |
#36
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#37
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OK, So how accurate are the speed signs in construction zones that read your speed? or the laser ones on the back of cop cars in school zones with the read out of your speed? I'd figure the cops would be completely accurate and according to them, My speedo is DEAD ON.
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#38
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In a school zone, it better be pretty damned close. If you see a discrepancy at 25mph, there's a problem. Conversely, if you're going fast enough to see that your speedometer is 5% off, you should probably be arrested. My point is this - your speedometer might look pretty accurate at 25, 35, 45mph - even with as much as a 5% error. At 150mph, it's another story. A 5% difference is much bigger at those speeds, and makes these 'I went 172mph and I can prove it with another car's speedometer' arguments worthless. My SVX's speedometer is pretty damned close - definitely the most accurate I've checked against GPS. But I wouldn't dare say that at 150mph it's 'DEAD ON.' I think at 100mph it might be a couple mph off. That was years ago that I checked it like that - who knows these days. Just to be clear, I'm not calling you a liar. It is possible, just by chance, that your speedometer is 'perfect.' I'm just saying that automobile speedometers are not the most trustworthy, accurate measuring devices. That's all.
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2005 RX-8 Grand Touring 2005 Outback 2002 Mercedes-Benz E320 wagon END OF LINE |
#39
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#40
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156 with a handful of mods, backed by GPS and G-Tech, the car had about 1k RPM's left in it before redline
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98 Impreza Wago-O-Doom & Datsun Roadsters |
#41
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No mods
I see all these post on here about people with mods doin 130 and so on.
My car is 100% stock and I had it up to 140-145 going by what my gauge read. My foot was not to the floor and the car felt as though it had alot left. I can reach lower speeds like 110-120 without even trying very hard. |
#42
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all of our cars can climb up to the 120 with out a problem.
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98 Impreza Wago-O-Doom & Datsun Roadsters |
#43
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Ordinarily a car's speedometer is a few mph off by even 45. Manufacturers gear the speedometers to read over your actual speed with the given gear ratios and tire sizes.
Putting the car on a chasis dyno to check speedometer accuracy works very well. I have seen dozens of cars go through this procedure and almost all are 10% off by 45-50 mph. My Civic was actually the closest to accurate I have seen (only 3 mph low at 110 mph indicated). However, when I changed my tires and ran it again, I was close to 5 mph under indicated by 75. Both sets of tires were stock sized as well. That equation for power required to overcome wind resistance is also quite accurate. With a stock 4EAT, EG33, and the 3.54 final drive, actually hitting 150 mph should be nearly impossible. Sonar's speed seems to be tough to hit but within the realm of possibilty with a 3.70 final drive... and I thought he was drafting when he got there. Mike, you were really at 7300 rpm at 135 mph? I thought the 6 speed had the same 6th gear ratio as the 5 speed's 5th, and with the 4.11's and at 7k... it would be hitting around the 155 mph mark.
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-Aaron SVX: '92 Dark Teal 101k '97 Legacy GT Wagon: dead '99 Civic Si: daily driver... stolen and stripped with all my tools! '92 Yamaha FZR 600: garage 2011 Jetta: Daily disappointment |
#44
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Getting past 120 is a different story. Takes the pedal being to the floor and a lot of room to get from 120 to 130.
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-Aaron SVX: '92 Dark Teal 101k '97 Legacy GT Wagon: dead '99 Civic Si: daily driver... stolen and stripped with all my tools! '92 Yamaha FZR 600: garage 2011 Jetta: Daily disappointment |
#45
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i tend to disagree... i have done it with 4 people total in teh car with no real problem, and it really didnt take long. ask the passengers, lol
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98 Impreza Wago-O-Doom & Datsun Roadsters |
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