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#16 SPORTcoupe300

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Posted 22 September 2004 - 01:50 PM

ive done 156 in my sc300 on 9a down a steep bridge i think i could have gotten to 160 if i was lucky but with out a down hill i top at around 150

If you're running stock differential and W58 on proper tire size, then I'm afraid I'm gonna have to call your bluff.
Our cars tach out at 146-147 with stock driveline no matter how much power you add to the engine.
If you're running upgraded diff or tranny, then right on!
If you're running a wheel/tire combo that is too small in circumferance, your speedo is off by about 5%

NOTE: You can possibly squeeze 1 or 2 more MPH if you depress your clutch right before fuel cut, but I highly reccomend against this.
Handling can be adversely affected when you suddenly lose power to the rear wheels at 150ish

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#17 BMAN1113

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Posted 22 September 2004 - 05:59 PM

On Scenic Hwy 61 South, just north of Port Gibson, I got my SC400 up to 140mph. I had made my mind up to hit the reported ceiling speed of 150mph, but just couldnt do it. After 135mph my heart was racing so hard as the road seemed to narrow and the passing green countryside began to smear. Then a little voice inside my head said what if a wheel comes off or something?... That extra 10 mph gets emotionally hard to reach especially if you have reasons to live... kids, wife, etc.. The car handeled great though.

#18 Mr. Curious

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Posted 22 September 2004 - 06:58 PM

broke 200 on a friends gsx1300r. :D

#19 don_juan_miami

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Posted 18 August 2005 - 04:32 PM

i dont care what magazines say about BMW's 155 cut off.... not true!!!!! I have it on film too... Im riding down Card Sound rd (on the way to the keys...) in my friends 03 stang cobra... we keep it at 155 for a while( keeps shutting off after that from gov chip) and then my friend alex zooms by in his STOCK M3. I mean zoom as in looks like at least 15 mph faster. Although im not sure exactly, he says his speedo said 178. Id say 170 but not more. Anyway, it was a whole group of us having fun and being stupid. Here are the cars.

2000 Honda civic EX (some work, basics only) Shuts off at 120mph- my old car
2004 Honda Accord Coupe 4cyl( also some work) 138 mph- Loren
2003 Audi TT 180 - 142 mph- Chez
1993 Lexus sc300 - 142mph (me and the audi were neck and neck the whole time....)
1984 BMW M3 widebody-145mph- Brendan's old car
2003 Mustang Mach1- (new gears, exhaust, chip, some others) redline at 150 mph- Dont know
2004 BMW 745li- shut off at 155mph- Chris
2004 Mustang Cobra- shuts off at 155 mph-Brendan's new car
2001 Saleen s281 sc- 165 mph- Albie (hate that kid)
2002 Carrera 996- 176mph- My cousin Todd
2001 BMW M3- 178mph- Alex

Juancho

#20 DomLee

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Posted 22 August 2005 - 07:51 AM

I drove from LA to SF to LA this weekend. I was able to get to 100mph, but anymore...and I felt the engine really struggling. How are you SC300 5-speed guys going above 120? Going at 100, I didn't feel like the car had much more power to really push beyond 120 (Possibly to 110.) Not that I'm trying to reach 120+mph speeds, but I didn't feel like my car could go that fast.

My tires were properly inflated. Still stock suspension, but in good condition. Just curious as I don't see how you guys are posting speeds higher than 120...

#21 Nimski62

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Posted 26 August 2005 - 04:28 PM

Hey DomLee.. do you by any chance feel the SC is really really slow during take off?.. cuzz i have a 1992 SC 300 5spd and its a dogg.. i feel the same as you after 100.. feels like it has nothing left, and during take off, it tops out so fast in first gear.. Let me know. Thanks

#22 mburnickas

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Posted 26 August 2005 - 05:37 PM

broke 200 on a friends gsx1300r. :D

 


You bet me. Only 172 mph on my gsxr1100. What year busa did your friend have?

#23 DomLee

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Posted 27 August 2005 - 04:36 PM

Hey DomLee.. do you by any chance feel the SC is really really slow during take off?.. cuzz i have a 1992 SC 300 5spd and its a dogg.. i feel the same as you after 100.. feels like it has nothing left, and during take off, it tops out so fast in first gear.. Let me know. Thanks

 


The SC is fine on takeoff. A bit sluggish maybe, but I'm more concerned w/ the way it tops out. I expected the power to die out more at 120 - 130mph.

Obviously this can be remedied by customing gearing, but if I'm spending money on that...I may as well look into an engine swap, along w/ the Supra 6-speed tranny.

#24 indiasfinest

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Posted 27 August 2005 - 08:08 PM

is the gsxr1100 a motorcycle? what type srry i have no clue bout motor cycles..200? that is very fast and i think that a moto would be very unstable at those speeds

#25 indiasfinest

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Posted 27 August 2005 - 09:53 PM

115 in my GX...the tippiest experience in my life

#26 mburnickas

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Posted 28 August 2005 - 06:59 AM

is the gsxr1100 a motorcycle? what type srry  i have no clue bout motor cycles..200? that is very fast and i think that a moto would be very unstable at those speeds

 


indiasfinest- Yes, The problem is there are only two years the Suzuki was the fastest and could go over there 189 limit. Bone stock, no bike can go over 200 mph.

#27 Flashjet

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Posted 28 August 2005 - 10:49 AM

1995 sc300 140 easy.. could have gone faster.. but big rigs scared me haha

 

Some what confused......In other blogs it talks about the 119mph max as that is the way the Japenese have limited all the cars made there. I see several here saying that they have gone way beyond that 119 mph limit. What is the deal? Have they had to modify their cars to go beyond the 119 mph limit or what? Or is it that those made here in the states don't have that 119 mph limit? I own a SC 400 but have not push the limit. The conditions in Austin don't allow for it. If modifications are required to go beyond this 119 limit, I would like to know what that is. Just what is involved.

Thanks,

Flashjet

#28 don_juan_miami

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Posted 28 August 2005 - 11:53 AM

119??!! Who would buy a lex that could only do that? As far as the limits on japan bro.... well.. if its 119 on all cars... remind me why J-Spec components are so popular? No offence or anything but i think you might have been mis-informed. Most japaneese versions of american cars are tuned for HIGHER horsepower and top speeds. Ive heard of Gov. chips like in all the Merc's and BMW's, but a National set limit? I dont know about all that. Let me know what you find out. Try going out of town and stepping on it, your sc400 should do plenty more than 119...
Juancho...

p.s... my lex was stock( 15'' rims and all) and at sea level.. granted i needed a few miles... i hit 142 on a g-tech pro, while my needle was reading 145.

#29 91L3xus

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Posted 28 August 2005 - 12:11 PM

Most japaneese versions of american cars are tuned for HIGHER horsepower and top speeds.


That's actually not true. For some time now, there has been a limit to how much horsepower a car could generate in Japan, the most known to me would be the Lancer Evolution, and the Subaru WRX STi (276 HP). But now I think the law's different.

#30 indiasfinest

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Posted 28 August 2005 - 12:16 PM

yea i dont think there is a 119 speed limit on lexuses..

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