Notices
Car Chat General discussion about Lexus, other auto manufacturers and automotive news.
Sponsored by:
Sponsored by: Innova
View Poll Results: Can an IS go 200+ MPH in the Mile
Yes
60.61%
No there is no way
39.39%
Voters: 33. You may not vote on this poll

200MPH Lexus IS

Thread Tools
 
Search this Thread
 
Old Jun 30, 2009 | 02:01 PM
  #1  
Fitment Factory's Avatar
Fitment Factory
Thread Starter
Lexus Champion
iTrader: (-1)
 
Joined: Jan 2009
Posts: 1,712
Likes: 2
From: FL
Default 200MPH Lexus IS

Ok.... Do you think it is possible to make an IS go 200 + MHP in the MILE? I have been looking to build a car to do 200 + MPH in the Texas Mile and thought as IS would be ridiculous wicked if it can go 200 MPH. I know there are a lot of super cars that do it but that's no fun. A friend said it would be crazy but possible. This is a hypothetical situation so have fun with it.


WHAT DO YOU THINK IT WOULD TAKE!

How much power would the car have to make?
Reply
Old Jun 30, 2009 | 02:08 PM
  #2  
LexFather
Guest
 
Posts: n/a
Default

Aerodynamics and Power are the two keys here. You are going to need at least 650hp and you also are going to have to do significant revisions to the body to add aerodynamics so it has enough downforce at that speed.

I believe stock the IS can do 170 mph and a lil more. The IS does have an 8 speed shifter so you won't run out of gearing

You got money and time, anything is possible!
Reply
Old Jun 30, 2009 | 02:10 PM
  #3  
Fitment Factory's Avatar
Fitment Factory
Thread Starter
Lexus Champion
iTrader: (-1)
 
Joined: Jan 2009
Posts: 1,712
Likes: 2
From: FL
Default

Originally Posted by 1SICKLEX

You got money and time, anything is possible!
That is so true!
Reply
Old Jun 30, 2009 | 02:11 PM
  #4  
SilverBull's Avatar
SilverBull
Advanced
 
Joined: Apr 2007
Posts: 554
Likes: 3
From: NV
Default

This will be interesting
Reply
Old Jun 30, 2009 | 02:14 PM
  #5  
IS-SV's Avatar
IS-SV
Lexus Fanatic
 
Joined: Nov 2008
Posts: 14,100
Likes: 1
From: tech capital
Default

Yes, quite easily with a modified IS-F.
Reply
Old Jun 30, 2009 | 02:14 PM
  #6  
Fitment Factory's Avatar
Fitment Factory
Thread Starter
Lexus Champion
iTrader: (-1)
 
Joined: Jan 2009
Posts: 1,712
Likes: 2
From: FL
Default

I was thinking 2JZ swap going for at least 1000 whp. The biggest problem would be putting the power to the ground. I know it can be done with an endless amount of road but it has to be in 1 mile.
Reply
Old Jun 30, 2009 | 02:38 PM
  #7  
Robs IS250's Avatar
Robs IS250
Lexus Fanatic
iTrader: (4)
 
Joined: Oct 2007
Posts: 6,058
Likes: 0
From: Miami
Default

hmmm this ones a tough one

i know of somebody already doing the 2JZ swap into a 2IS and supposedly everything is going smooth and hes a very well known/reputable tuner down here in miami so im dying to see that monster.

but who knows... we can always take a trip to the autobahn

or try out a heavily boosted 2IS
Reply
Old Jun 30, 2009 | 02:40 PM
  #8  
Threxx's Avatar
Threxx
Lexus Champion
 
Joined: Dec 2002
Posts: 3,474
Likes: 2
From: Tennessee
Default

I'm pretty confident that anything under 1000 horsepower would have you failing. Over 1000 horsepower and we're looking at 'maybe' territory. The entire powertrain and driveline will need to be heavily reworked using parts that probably don't even exist (custom fab) or the easier way might be a heavily built 2JZ-GTE. Aerodynamics will need to be tackled including high speed stability but also reduction of drag. This wouldn't just be modding a car... it'd be creating a whole new car with an IS body.

Originally Posted by IS-SV
Yes, quite easily with a modified IS-F.
Quite easily??

Even to an IS-F you are talking about needing mods that will cost way more than the IS-F itself and take a team of very skilled mechanics and engineers to pull it off safely and in any way even close to reliably.

The only way you're going to do it 'quite easily' is with a rocket booster strapped on the back.
Reply
Old Jun 30, 2009 | 02:40 PM
  #9  
Robs IS250's Avatar
Robs IS250
Lexus Fanatic
iTrader: (4)
 
Joined: Oct 2007
Posts: 6,058
Likes: 0
From: Miami
Default

BTW i know for a fact the IS250 6MT tops out at 145

the IS350 at 144

and the auto IS250 at 143

god damn governer/restrictor
Reply
Old Jun 30, 2009 | 02:42 PM
  #10  
Robs IS250's Avatar
Robs IS250
Lexus Fanatic
iTrader: (4)
 
Joined: Oct 2007
Posts: 6,058
Likes: 0
From: Miami
Default

then again, massive brakes will be needed along with a parachute
Reply
Old Jun 30, 2009 | 02:58 PM
  #11  
Fitment Factory's Avatar
Fitment Factory
Thread Starter
Lexus Champion
iTrader: (-1)
 
Joined: Jan 2009
Posts: 1,712
Likes: 2
From: FL
Default

So lets start the list

Z rated tires
Big Brakes
2JZ
Custom Transmission
No Mirrors
Reply
Old Jun 30, 2009 | 03:00 PM
  #12  
LexFather
Guest
 
Posts: n/a
Default

Maybe one of the math guys can chime in but there is an easy formula to tell you how much power you need to go 200mph once u have a couple figures from the car you are trying to drive.

This should help

http://racingarticles.com/article_racing-21.html

There is an available software application called “Bonneville”?, (a top speed simulation program.) a mathematical formula is used on the computer to simulate a race vehicles top speed using the options that are entered in the formula. Including frontal area, drag coefficient, horsepower, gear ratios, and tire size.
This formula has proven several times what Most Open Road Racers know that as speed doubles, drag coefficient increases by the “SQUARE” (2X2=4). But what most of these enthusiasts don’t know, is that the Horsepower Requirement to double your speed, increases by the “CUBE”.

That means that if it requires100 horsepower to run 100+ mph in a Specific Vehicle”, it will take 800 hp (2X2X2=8) to push the “Same Car” to 200+ mph. Comparing the difference between Drag and the Horsepower requirement it is obvious that it will be easier, (and less expensive) to go faster with a “Swoopier Body” than it
Reply
Old Jun 30, 2009 | 03:09 PM
  #13  
Threxx's Avatar
Threxx
Lexus Champion
 
Joined: Dec 2002
Posts: 3,474
Likes: 2
From: Tennessee
Default

http://www.roadandtrack.com/assets/d...read_carts.pdf
Reply
Old Jun 30, 2009 | 03:34 PM
  #14  
Fitment Factory's Avatar
Fitment Factory
Thread Starter
Lexus Champion
iTrader: (-1)
 
Joined: Jan 2009
Posts: 1,712
Likes: 2
From: FL
Default

Great links guys

Thanks!
Reply
Old Jun 30, 2009 | 03:40 PM
  #15  
IS-SV's Avatar
IS-SV
Lexus Fanatic
 
Joined: Nov 2008
Posts: 14,100
Likes: 1
From: tech capital
Default

Originally Posted by Threxx

Quite easily??

Even to an IS-F you are talking about needing mods that will cost way more than the IS-F itself and take a team of very skilled mechanics and engineers to pull it off safely and in any way even close to reliably.

The only way you're going to do it 'quite easily' is with a rocket booster strapped on the back.
We are talking above top speed of 200 mph (w/o a governor) and there's no mention of safety. It's only money and lots of money of course, serious tuner companies are pulling off feats greater than this today.

What's the current top speed of the IS-F governed? And what would the top speed be without the speed governor? The difference would be that speed minus 200 mph.

But you are right, in the context of top speed in a distance of over a mile. That's certainly different than just top speed as I was discussing incorrectly.

Last edited by IS-SV; Jun 30, 2009 at 04:05 PM. Reason: correction
Reply



All times are GMT -7. The time now is 11:44 AM.