What will give my IS250 more Horsepower?
02-15-07, 07:49 AM
#17
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02-15-07, 08:17 AM
#18
The 07 G sedan is actually pretty good looking, unlike the previous sedan model.
Anyway, not many options to get more power out of the IS250, without turbo, SC or engine drop.
Your best bet would be... rotational weight reduction.
lighter wheels, lugs and tires
Perhaps a lightweight flywheel and a stiffer clutch.
X-drilled rotors
Then
Drop what you can from the trunk( you can probably lose 100lbs, by removing the spare, and the jack and the plastic/carpet)
Exhaust = weight loss(probably another 20-30 lbs)
Racing seats. Power leather? Probably weighs 80-100lbs per seat.
Anyway, not many options to get more power out of the IS250, without turbo, SC or engine drop.
Your best bet would be... rotational weight reduction.
lighter wheels, lugs and tires
Perhaps a lightweight flywheel and a stiffer clutch.
X-drilled rotors
Then
Drop what you can from the trunk( you can probably lose 100lbs, by removing the spare, and the jack and the plastic/carpet)
Exhaust = weight loss(probably another 20-30 lbs)
Racing seats. Power leather? Probably weighs 80-100lbs per seat.
02-15-07, 12:19 PM
#21
Lexus Test Driver
Join Date: Feb 2006
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In all honesty the amount of money your going to spend to gain an extra 10-15 hp will not be cost effective whatsoever. An exhaust will cost over $1k, a set of headers will be at least $500 and an intake over $200 at least.....you'll be spending $150-200 per hp. In my opinion not worth it. I would just trade the 250 in for the 350, now you have 104 more hp and the 350 responds to mods much better than the 250 so your cost effectiveness will be greatly reduced....theres is even a supercharger kit out for the 350 as well. And who cares if its an automatic, compromise...a least you'll have the paddle shifters 
I got sick of stick and used to drive and EVO with close to 400 at the wheels, the way I look at it the IS is a luxury car with a little sportiness, I'll save the manual transmission for a real perfomance car like a vette or an Evo.
I got sick of stick and used to drive and EVO with close to 400 at the wheels, the way I look at it the IS is a luxury car with a little sportiness, I'll save the manual transmission for a real perfomance car like a vette or an Evo.
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