The 98 SC 400 and 98 GS 400 are both listed on wikipedia as having the same 4.0 L 1UZ-FE V8 engine, however, the GS is listed with 300 hp/310 ft·lb with a 0-60 in 5.4 secs for the 3963 lb sedan compared to 290/300 ft·lb with a 0-60 in 6.0 sec for a 3,604 lb SC coupe.

Do they both have the same engine? Is the UZS160 in the SC too?

If they both have the same engine then why is a freakin heavier sedan faster on paper (wiki specs) than the coupe? Can someone please explain this? Why would Lexus make a sedan faster than it's sports car? lol



Wiki for SC:
http://en.wikipedia.org/wiki/Lexus_SC

Wiki for GS:
http://en.wikipedia.org/wiki/Lexus_GS

 

This has been covered a few times actually, differences in the exhaust/intake design are said to have contributed.

 

GS400 was ad as fastest in its class, does that mean something? maybe the different is in the trannie and tuning based on 0-60 run if this makes sense! takes GTR which created much of debates due to a fact that it wieghts tons yet run 3.2 to 60, some say it's magic involved, the magic was the trannie and it takes 2 gears B4 reaching 60mph with ultra fast shifting time

 

I searched this forum and couldn't come up with anything. Thanks for the explanation. Still doesn't make sense though lol.
The SC should have gotten the extra umph.

 

I guess it must be marketing hype.

 

3.2 to 60? yeh right...

 

Anyone have the links to previous threads that discussed this topic?

 

At the time the GS400 was the sports sedan of the line up where as the SC, while a coupe, was more of a tourer and not intended as a "sports car". Its the same engine, but I assume there are minor differences that people have pointed out already that contribute to better performance out of the GS.

 

Here are a few (and how I found them)

Found by searching "gs400 sc400 faster"
https://www.clublexus.com/forums/per...-vs-sc400.html

Found by searching "gs400 sc400 1998"
https://www.clublexus.com/forums/per...c400s-1uz.html

"sc400 gs400 intake exhaust"
https://www.clublexus.com/forums/per...ifference.html

 

the extra 10hp/10tq was pretty much from the exhaust design. the two differed only by that. the engine/tranny were the same. so if you look up the header design as well as the exhaust from the header to center cat/resonator, that's where the difference is.

 

Thanks!

 

Yeah but it still would have been nice to have the same specs. Imagine a stock SC running 0-60 in 5.4. With the same set up as the gs400 the 98+ Sc probaly could have squeezed out 0-60 in 5.2 due to being 300+ lbs less weight.

 

here's data from MotorTrend
Acceleration to mph
0-30 1.2 sec
0-40 1.7
0-50 2.4
0-60 3.2
0-70 4.2
0-80 5.3
0-90 6.5
0-100 8
0-110 9.7
0-120 11.6
0-130 14.1
Passing, 45-65 mph 1.6 sec
Quarter mile 11.6 sec @ 120.0 mph
3,836-pound GT-R

 

there isn't 10 more pound feet of torque, just 10 hp

 

dont forget AWD