92 Sc400 Modified Vs 2002 Sc430
McLaren F1 is pretty low
but F1 cars usually have about 1.5gs of downforce (depends on track conditions and their wing settings) when going full speed; enough to stick to the ceiling
i figure LeMans race cars have high downforce too
but F1 cars usually have about 1.5gs of downforce (depends on track conditions and their wing settings) when going full speed; enough to stick to the ceiling
i figure LeMans race cars have high downforce too
Lexus Champion
Joined: Feb 2002
Posts: 1,772
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From: California
Re: Re: lexus400sc
Originally posted by lex400sc
300-400 pounds, even 200 more is a lot, but with 50 more horses, I don't think becomes an issue at all. Any idea on which car has the lowest CoD in the world and what that is? I'm sure it's some LeMans F1 car. What about production cars? McLauren F1 GTR? C5?
300-400 pounds, even 200 more is a lot, but with 50 more horses, I don't think becomes an issue at all. Any idea on which car has the lowest CoD in the world and what that is? I'm sure it's some LeMans F1 car. What about production cars? McLauren F1 GTR? C5?
That's a good question about which production car has the lowest Cd in the world, I'm pretty curious myself. I know the new LS430 has the lowest Cd of any Lexus at .26 and 0.25 with the available Adaptive Variable Air Suspension.
Last edited by JAC JZS; Mar 13, 2002 at 03:39 PM.
Lexus Fanatic
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From: bat country
Re: Re: Re: lexus400sc
Originally posted by JAC JZS
Yeah 200 lbs is alot. Let's say a stock GS400 runs the quarter in 14.59. Now throw in your 200lb friend and your 1/4 mile time goes up to 14.85. So basically for every 200lbs you add to a car of the same hp you lose .26 in the quarter. Of course there are so many other variables when comparing two cars even if they are the same weight abnd hp like transmission, VVT-I, % of drivetrain loss and RWD,FWD or AWD, driver of course, just to name a few. The .26 time loss/200lbs would apply though if the two cars shared many of the above things mentioned and obviously if you were comparing the same model car.
That's a good question about which production car has the lowest Cd in the world, I'm pretty curious myself. I know the new LS430 has the lowest Cd of any Lexus at .26 and 0.25 with the available Adaptive Variable Air Suspension.
Yeah 200 lbs is alot. Let's say a stock GS400 runs the quarter in 14.59. Now throw in your 200lb friend and your 1/4 mile time goes up to 14.85. So basically for every 200lbs you add to a car of the same hp you lose .26 in the quarter. Of course there are so many other variables when comparing two cars even if they are the same weight abnd hp like transmission, VVT-I, % of drivetrain loss and RWD,FWD or AWD, driver of course, just to name a few. The .26 time loss/200lbs would apply though if the two cars shared many of the above things mentioned and obviously if you were comparing the same model car.
That's a good question about which production car has the lowest Cd in the world, I'm pretty curious myself. I know the new LS430 has the lowest Cd of any Lexus at .26 and 0.25 with the available Adaptive Variable Air Suspension.
Lexus Champion
Joined: Sep 2001
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From: New York
JAC JCS, I haven't found that 200 addt'l lbs equates to a .26sec slower car, that's around 25hp. I'd say at the most, 100lbs would be a tenth, but I have a hard time believing that a GS is 3700lbs, that's not 200lbs heavier, it's more like 100lbs. Then again, the 4.0 VVT-i and 5spd auto in the SC doesn't run much quicker than a GS4, I think it's only a tenth or so, if that's true, then that weight would be correct, who's got the hard numbers for 0-60 and 1/4mile on a '98-up SC4 and GS4? I was driving a friend's '98 GS4 a couple days ago, didn't even feel like a mid-14 car, I thought that's what they were supposed to run.
Lexus Champion
Joined: Feb 2002
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From: California
Originally posted by Lex Luthor
JAC JCS, I haven't found that 200 addt'l lbs equates to a .26sec slower car, that's around 25hp. I'd say at the most, 100lbs would be a tenth, but I have a hard time believing that a GS is 3700lbs, that's not 200lbs heavier, it's more like 100lbs. Then again, the 4.0 VVT-i and 5spd auto in the SC doesn't run much quicker than a GS4, I think it's only a tenth or so, if that's true, then that weight would be correct, who's got the hard numbers for 0-60 and 1/4mile on a '98-up SC4 and GS4? I was driving a friend's '98 GS4 a couple days ago, didn't even feel like a mid-14 car, I thought that's what they were supposed to run.
JAC JCS, I haven't found that 200 addt'l lbs equates to a .26sec slower car, that's around 25hp. I'd say at the most, 100lbs would be a tenth, but I have a hard time believing that a GS is 3700lbs, that's not 200lbs heavier, it's more like 100lbs. Then again, the 4.0 VVT-i and 5spd auto in the SC doesn't run much quicker than a GS4, I think it's only a tenth or so, if that's true, then that weight would be correct, who's got the hard numbers for 0-60 and 1/4mile on a '98-up SC4 and GS4? I was driving a friend's '98 GS4 a couple days ago, didn't even feel like a mid-14 car, I thought that's what they were supposed to run.
That amount of time is not even noticeable by the human eye. If you look anywhere on the net or even on this website you will find that the curb weight for a 98'-00' GS400 is 3693. The curb weight for a 94' Sc400 is 3532 so the difference is actually 175lbs. The curb weight for a 98' Sc400 is 3655lbs(290hp). The Lexus website says that the 98' Gs4 does the 1/4 mile in 14.3(but we all know that is a little optimistic) and that the Sc4 1/4 mile is 14.7 making the difference .4. I have seen many friends timeslips with GS4's run anywhere from 14.5 to 14.7 in the quarter stock. IMO the difference between a 98' GS4 and a 98' Sc4 is more like .2. Anyone have timeslips for a 98' SC400 stock?
Pole Position
Joined: Aug 2001
Posts: 288
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From: Alabama
Originally posted by lex400sc
Yeah I'm that guy
, but I used to work at the Good Guys(laid off) and I live in Pleasanton----even closer!
Yeah I'm that guy
, but I used to work at the Good Guys(laid off) and I live in Pleasanton----even closer!
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Lead Lap
Joined: May 2001
Posts: 462
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From: Alabama
Man...I've been trying to keep up with this post. But ****...yall are just confusing. I mean I like physics and all, but lets just say that every car runs different for a bunch of different reasons....end story.....Just kiddin
Lexus Fanatic
Joined: Nov 2001
Posts: 8,387
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From: bat country
Originally posted by mjames08
Still haven't seen your car.. But I have seen another green sc300 with rims and exhaust running around dublin..
Still haven't seen your car.. But I have seen another green sc300 with rims and exhaust running around dublin..
Haven't seen your SC on twampers either
. I see a stock white SC parked off San Ramon Valley Rd and Dublin Blvd all the time though. Another white 97 always parked off Muirwood Dr, and Diablo Realtors in Pleasanton is a Lexus parking lot! I swear there are always 6 or more Lexuses parked in this tiny 15-car parking lot. One of them is a white pre-95 SC as well.
Lexus Champion
Joined: Sep 2001
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From: New York
Nick, exactly, JAC JZS, your own information shows a difference of 38lbs between the two models, which means that they should run near-identical quarters, but you say the coupe runs a couple tenths behind the 4-door? Dunno, maybe you're right, even if the evidence says so, but it seems so funny to me that the bloated-looking GS would outrun the SC with the same drivetrain. Who's got some timeslips?
Lexus Champion
Joined: Feb 2002
Posts: 1,772
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From: California
Right
Originally posted by hellasboy
Where are you guys getting the info that the GS400 is 200 lbs heavier than the SC400? The curb weight of the GS400 is 3693 lbs and the curb weight of the SC400 is 3655 lbs.
Where are you guys getting the info that the GS400 is 200 lbs heavier than the SC400? The curb weight of the GS400 is 3693 lbs and the curb weight of the SC400 is 3655 lbs.
Lexus Champion
Joined: Feb 2002
Posts: 1,772
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From: California
Originally posted by Lex Luthor
Nick, exactly, JAC JZS, your own information shows a difference of 38lbs between the two models, which means that they should run near-identical quarters, but you say the coupe runs a couple tenths behind the 4-door? Dunno, maybe you're right, even if the evidence says so, but it seems so funny to me that the bloated-looking GS would outrun the SC with the same drivetrain. Who's got some timeslips?
Nick, exactly, JAC JZS, your own information shows a difference of 38lbs between the two models, which means that they should run near-identical quarters, but you say the coupe runs a couple tenths behind the 4-door? Dunno, maybe you're right, even if the evidence says so, but it seems so funny to me that the bloated-looking GS would outrun the SC with the same drivetrain. Who's got some timeslips?
Lexus Champion
Joined: Sep 2001
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From: New York
Well, it's the exact same 1UZ-FE VVT-i and 5speed ECT-i transmission in both cars, the hp and tq ratings are different because of exhaust and intake configuration (like when GM put the exact same LT1 in the Vette rated @ 300hp, and in the F-Body @ 275hp) and also as a result of the marketing dept. So, between the GS and SC, if we assume that weight difference is under 50lbs, and hp and torque differences are within 10, those two should run within a tenth of each other. I honestly don't know if they do, but those of you that have the facts please let us know. To be honest, I don't see any reason why a '98-2K SC4 shouldn't run low 14's, but I hear they don't, seems kinda dissapointing.