SC... How fast, powerful, quick???
#1
Lexus Champion
Thread Starter
I want to know what guys have done in terms of TOP SPEEDs, 0 - 60, and 1/4 et's in the SC (or any of the 8cyl or 6cyl cars). Also list any mods the car may have...
I have a posh SC4 with a few mods and I've seen 146 mph on a stretch of hwy from Shreveport, LA to MS. The coupe was powerful, staple, and felt as if i could've gone faster, but my K-40 went off and i wisely backed out.(WHEW, a trooper had some one else pulled over...) How much faster could i have truly gone??? My 1/4 mile time was 14.7 using a stop watch and 6.6 0-60, 14.8 & 14.9 1/4 et., twice with one of those G-tech plug detector type devices. I borrowed the g-tech from a guy at a local speed shop. How reliable are the methods i used to obtain times???
Great Coupes and Great Site!!! Let's post info as soon and as much as we can !!! Hey, did i say Great Site!?!?
I have a posh SC4 with a few mods and I've seen 146 mph on a stretch of hwy from Shreveport, LA to MS. The coupe was powerful, staple, and felt as if i could've gone faster, but my K-40 went off and i wisely backed out.(WHEW, a trooper had some one else pulled over...) How much faster could i have truly gone??? My 1/4 mile time was 14.7 using a stop watch and 6.6 0-60, 14.8 & 14.9 1/4 et., twice with one of those G-tech plug detector type devices. I borrowed the g-tech from a guy at a local speed shop. How reliable are the methods i used to obtain times???
Great Coupes and Great Site!!! Let's post info as soon and as much as we can !!! Hey, did i say Great Site!?!?
Last edited by The Ikon; 07-19-01 at 10:35 PM.
#2
Lexus Champion
Ikon, the GForce reading can be accurate or off depending on road conditions ie: level vs incline/decline. Nonetheless your car sounds like a strong runner. What year is it? I have a bone stock 96 LS400 with the 260hp/270tq engine. I ran 15.4 @ 91 at the track. The fastest I have gone so far is 120mph but the 95-97 cars are un-governed and reportably reach 156mph. I seem to remember the SCs being 1 or 2 years behind on the power upgrade from 250 to 260hp but don't know on the 290hp upgrade that the 98+LS got.
#3
Lexus Champion
Thread Starter
That device was actually a G-tech not g-force... any way are the really accurate???
#4
Lexus Test Driver
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well as for 0-60 i dont know..i know its quick.....1/4 mile ive hit 11.90..i have top ended twice in the car...once about 170..the other we were up into 175-180...dont know for sure cause the needle burys at 160
#5
How fast
No 0-60 or 1/4 mile times, but....I have had my bone stock 300 up to 135mph twice the first year I had it. I am really not sure how much more it had cause fear got the best of me....and the road was coming to a quick end.
#6
Lexus Champion
Thread Starter
D@mnnnnnnnnnnnnnnnnnnnnn!!!!!!!! Hot Car!!! I see you have extensive mods (was it achieved under $10,000?). At those speeds how did the car react? post some pictures of your SC...
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#8
correct times
Ikon.
I got the same mods you got except all ignition is stock in mine. I have tested mine at the same 14.7- 14.8 numbers, I also have stock mufflers and resonators but no cats.
I haven't top ended my car but ran at 142mph for some time while "cruising" before ran out of "safe road". Car felt extremely controlled yet experienced some "luxury" float feel at those speeds. I am more used to my RX-7 sportiness.
I think changing to sport coils and shocks can improve highspeed feel but I don't want to sacrifice the stock softness while city driving.
Take care.
Mind
1995 SC400
I got the same mods you got except all ignition is stock in mine. I have tested mine at the same 14.7- 14.8 numbers, I also have stock mufflers and resonators but no cats.
I haven't top ended my car but ran at 142mph for some time while "cruising" before ran out of "safe road". Car felt extremely controlled yet experienced some "luxury" float feel at those speeds. I am more used to my RX-7 sportiness.
I think changing to sport coils and shocks can improve highspeed feel but I don't want to sacrifice the stock softness while city driving.
Take care.
Mind
1995 SC400
#9
Lexus Champion
Mind, I agree with you that performance suspension would help high speed "feel" but as I get older I REALLY appreciate the smooth quiet ride that Lexus is renouned for. My car is very capable as is and I will probably leave the stock suspension alone even after significant power mods.
#10
Lexus Test Driver
Top speed
I'm redline limited to around 145-150 with the stock 5spd driveline. Only takes around 10 seconds from 60-120, so my throttle can't remain planted for long...A pity.
#11
I've had my car up to the quoted top speed of 141 mph that I had seen in one of the major car magazines. My car was right at redline and the speedo needle was just over 140 mph and the car felt very stable. The only scary part was that I felt like I was outrunning my headlights.
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