SC- 1st Gen (1992-2000)
View Poll Results: SC300 or SC400?
SC300 AT
3
6.25%
SC300 Manual
16
33.33%
SC400 AT
7
14.58%
1998+ SC400 w VVTI
20
41.67%
1998+ SC300 w VVTI
2
4.17%
Other
0
0%
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SCFAQ: Should I get a sc300 or sc400?

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Old 03-05-08, 06:05 AM
  #61  
simontibb
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Default Sc300 Vs Sc400

I am looking at a SC400, I would like an SC300 to do a NA-T but...I am not sure if money will allow or time, so the SC400 seems like the better DD for me. I want to keep it simple, lower it, wheels, system, exhaust, basic things (of course with my past none of this will happen and it will turn into a turbo project ) BUT...ALL SC300 parts fit an SC400 suspension and body wise right?

That's my main question.

Also how fast are SC400's? Say compared to a Mustang GT or something. 4.0 vs 4.6. Do they respond well to bolt ons?
Old 03-05-08, 06:07 AM
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Dx3
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www.intellexual.net

Jonny
Old 03-05-08, 06:10 AM
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Originally Posted by simontibb
I am looking at a SC400, I would like an SC300 to do a NA-T but...I am not sure if money will allow or time, so the SC400 seems like the better DD for me. I want to keep it simple, lower it, wheels, system, exhaust, basic things (of course with my past none of this will happen and it will turn into a turbo project ) BUT...ALL SC300 parts fit an SC400 suspension and body wise right?

That's my main question.

Also how fast are SC400's? Say compared to a Mustang GT or something. 4.0 vs 4.6. Do they respond well to bolt ons?
Sc300 waste less gas and you can get it in manual which will be quicker or around the same speed as the sc400. And as for suspension there the same the same goes for body.
Old 03-05-08, 06:15 AM
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simontibb
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Ok thanks! And thanks for that link I havent seen that!
Old 03-05-08, 06:39 AM
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Originally Posted by xx69xx
Sc300 waste less gas .
No it doesn't.

Originally Posted by xx69xx
Sc300 waste less gas and you can get it in manual which will be quicker or around the same speed as the sc400. .
No it won't.

Jonny
Old 03-05-08, 07:18 AM
  #66  
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Oh do I wish that my SC400 had a manual transmission. It's the only car that I've owned in the last 15 years without one. I know that you can change the auto out ... but I want to leave her stock ...
Old 03-05-08, 07:32 AM
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The maintenance on a 400 is more than a 300... get an estimate for a 300 and multiply it by 2 for a 400. 300's get better gas mileage for the record, not by much but when premium is almost 4.00gal every gallon counts. They are both great engines, but for mods and ease of finding parts the 300 is th way to go.
Old 03-05-08, 11:28 AM
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I kinda had this dilema but i decided i wanted boost so i went with a 300, i think after i'm done with this though i might try and get a sc400 and convert it to manual.




i'd say if you ever plan on boosting it go with the 300, easier in the long run, if you just want something nice and simple with power for cruising get the 400..

is sc400's maitnence really that much more?? i was kinda wondering this myself.
Old 03-05-08, 12:04 PM
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Originally Posted by TheCoupe
The maintenance on a 400 is more than a 300... get an estimate for a 300 and multiply it by 2 for a 400. 300's get better gas mileage for the record, not by much but when premium is almost 4.00gal every gallon counts. They are both great engines, but for mods and ease of finding parts the 300 is th way to go.
if both engines are in the same condition, the 2jz uses more gas...read all the gas mileage threads and you would know this...

as far as the maitenance costs go, this isnt true either, it just depends on what you are getting...spark plugs? of course the 400 will be more expensive, timing belt is cheaper on the 400 though. alot of parts (not counting SOME engine parts) are the same...air filter...any suspension parts...

read more before you post something like that
Old 03-05-08, 01:06 PM
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Originally Posted by Dx3
No it doesn't.



No it won't.

Jonny
so Dx3... you're saying a v8 gets the same amount of gas mileage that an inline 6 does?
Old 03-05-08, 01:23 PM
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Originally Posted by gorilaFART
so Dx3... you're saying a v8 gets the same amount of gas mileage that an inline 6 does?
the weight of the SC effects the motor.
the SC400 has a v8 that accelerates better
the I6 has a little trouble and needs more gas to get to speed.
so since the v8 has "ease" pulling the SC it needs less gas.
Old 03-05-08, 01:29 PM
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As far as I understood, the 1uz got better gas mileage because the 2jz took higher revs to get to the same speed as the sc400. I thought this was simply due to the 2jz not having enough power and torque to carry the weight of the car itself..
Is this not true?
However, I was also under the impression that a 5spd got the best gas-mileage out of all the engine options simply due to it being a manual.
Old 03-05-08, 01:49 PM
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Originally Posted by SC4_FI
if both engines are in the same condition, the 2jz uses more gas...read all the gas mileage threads and you would know this...

as far as the maitenance costs go, this isnt true either, it just depends on what you are getting...spark plugs? of course the 400 will be more expensive, timing belt is cheaper on the 400 though. alot of parts (not counting SOME engine parts) are the same...air filter...any suspension parts...

read more before you post something like that
Spark plugs for the 400 are CHEAPER. In the 300 you have to remove the MAS throttle etc. Where as in the 400 they are on the side. As for the sc300 and 400 speed look at the website posted depending on the year and tranny they are around the same speed. Off by .2 or .4 of a second. The Sc300 DOES not waste more gas because it has LESS power. If thats the case it should be the same because the V8 should be heavier and it being automatic tranny that weighs more and waste more gas. Speaking from personal experience, I raced an auto sc400 vs my 5spd sc300 and i won both stock and stock. I won all 3 races but did not win by that much.
Old 03-05-08, 01:59 PM
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Originally Posted by SC4_FI
if both engines are in the same condition, the 2jz uses more gas...read all the gas mileage threads and you would know this...

as far as the maitenance costs go, this isnt true either, it just depends on what you are getting...spark plugs? of course the 400 will be more expensive, timing belt is cheaper on the 400 though. alot of parts (not counting SOME engine parts) are the same...air filter...any suspension parts...

read more before you post something like that
I work at a dealer... a 400 has 2 distributors, 2 rotors, 8spark plugs, 8wires(one set of course), 2 ignitors, 2 valve cover gaskets, 8spark plug grommets. As for parts how many Toyota/Lexus vehicles come with a 1UZFE/3UZFE? How many cars came a 2JZGE? Some sensors are the same.. like map, temp. Everything else is different. Working on the 2J is ALOT cheaper... pistons, rods, etc... dont get me wrong the 400 is nice but not practical for most people on this forum. Trust me the difference in gas mileage is NOT night and day between them.. but the 300 is a little better. Better yet since i dont anything why dont you call YOUR local dealer and find out... Lexus Certified Parts professionals dont know anything.. HA!

Last edited by TheCoupe; 03-05-08 at 02:01 PM. Reason: spelling
Old 03-05-08, 02:09 PM
  #75  
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lol, read my post..what was in parenthesis? thats right, engine parts...go figure, learn to read before you post something

and this must make the the 5th person on this post alone that has told you 300 get WORSE gas mileage not better...

wow, maybe you should do more research before you post next time

and xx69xx..i was assuming that people would do their own spark plugs, not take it somewhere, in which case the 400 is more expensive, more of em

EDIT: use your common sense, of course pieces with less parts would be cheaper (rods pistons cams valves)...lol

Last edited by SC4_FI; 03-05-08 at 02:15 PM.


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