Notices
RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

performance chip

Thread Tools
 
Search this Thread
 
Old Dec 7, 2006 | 02:49 PM
  #1  
jg 368 48's Avatar
jg 368 48
Thread Starter
Pole Position
 
Joined: Sep 2006
Posts: 364
Likes: 0
From: sd
Default performance chip

i have a 99 rx300 and i wanted to increase horsepower. through browsing the internet i have found that it seems to be a reliable, easy, and fast way to boost power. what do you guys think about it? i can add 43hp with a performance chip. is it easy? does it work? does it cause any problems? any info i should know before buying it?

thanks
Reply
Old Dec 7, 2006 | 03:38 PM
  #2  
zombie's Avatar
zombie
Lead Lap
iTrader: (1)
 
Joined: Mar 2006
Posts: 487
Likes: 4
From: SugarLand,Texas
Default

for a performance chip you usually have to send in your ecu and it takes atleast 4 days until you can get it back. if your talking about the "performance chips" they sell on ebay then those are crap. all it does is trick your maf sensor into thinking its getting cold air and making your engine eat up more fuel. you might as well mod your intake.
Reply
Old Dec 7, 2006 | 07:08 PM
  #3  
jg 368 48's Avatar
jg 368 48
Thread Starter
Pole Position
 
Joined: Sep 2006
Posts: 364
Likes: 0
From: sd
Default

oo really? i didnt know that. u just saved me from making a big mistake then i guess
Reply
Old Dec 7, 2006 | 08:35 PM
  #4  
Lexmex's Avatar
Lexmex
CL Community Team
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2004
Posts: 17,329
Likes: 210
From: Miami, Florida
Default

zombie is right.

http://www.jetchip.com is the one he is referring to.
Reply
Old Dec 7, 2006 | 10:08 PM
  #5  
jg 368 48's Avatar
jg 368 48
Thread Starter
Pole Position
 
Joined: Sep 2006
Posts: 364
Likes: 0
From: sd
Default

zombie is right.

http://www.jetchip.com is the one he is referring to.
is the stuff on the jetchip.com website the good or bad stuff?
Reply
Old Dec 7, 2006 | 11:23 PM
  #6  
zombie's Avatar
zombie
Lead Lap
iTrader: (1)
 
Joined: Mar 2006
Posts: 487
Likes: 4
From: SugarLand,Texas
Default

jet chip is the good stuff because you send in your ecu and they install it.
Reply
Old Dec 8, 2006 | 06:01 AM
  #7  
Lexmex's Avatar
Lexmex
CL Community Team
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2004
Posts: 17,329
Likes: 210
From: Miami, Florida
Default

I plan to this modification in the future, but would want to wait until I get a turbo upgrade to get this properly mapped. Have had friends who installed chips, go turbo and forget to remap and it causes problems.

However, if you plan to do non-turbo, non-supercharged upgrades, what Jet could do for you right now would help.
Reply
Old Dec 8, 2006 | 08:24 AM
  #8  
salimshah's Avatar
salimshah
CL Community Team
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2001
Posts: 16,559
Likes: 1,385
From: Austin, TX
Default

There are alternative vehicles which can acellarate quicker and go fast and are stock/modified_easy.

So what is the fascination of making the RX faster? .. exception is Lexmex who races RX on trac.


Salim
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

10 Lexus Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-1

8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

 Michael S. Palmer
story-2

10 Best Lexus Models No One Remembers

 Joe Kucinski
story-3

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-4

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-5

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-6

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-7

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-8

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-9

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
Old Dec 8, 2006 | 08:26 AM
  #9  
tcheung87's Avatar
tcheung87
Lexus Test Driver
 
Joined: Oct 2005
Posts: 858
Likes: 2
From: California
Default

Originally Posted by salimshah
There are alternative vehicles which can acellarate quicker and go fast and are stock/modified_easy.

So what is the fascination of making the RX faster? .. exception is Lexmex who races RX on trac.


Salim
Play the cards in your hand, perhaps?
Reply
Old Dec 8, 2006 | 08:58 AM
  #10  
LiqrSicc's Avatar
LiqrSicc
Lead Lap
 
Joined: May 2005
Posts: 625
Likes: 3
From: Ca
Default

So what are the downsides of the Jet chip? Lower mpg?
Reply
Old Dec 8, 2006 | 10:41 AM
  #11  
Lexmex's Avatar
Lexmex
CL Community Team
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2004
Posts: 17,329
Likes: 210
From: Miami, Florida
Default

Originally Posted by LiqrSicc
So what are the downsides of the Jet chip? Lower mpg?
Salim's right, there are alternate vehicles and much easier to modify.

It is a sad thing there is not a huge aftermarket performance parts market for our vehicles. That also goes for our engine group, though some get the TRD Supercharger (which I also don't like along with the TTE Compressor).

My original motivation was the high altitude of Mexico City, 7,000 to 8,000 feet range. And that will just sap power and making going up hills difficult not to mention MPG.

Well with the chip, you have a remapping issue as I mentioned earlier if you start modifying extensively. Yes, MPG can be affected, but it will still depend much on how much you push on the accelerator. When you would do WOT, obviously with a chip and more acceleration, more gas than a stock chip system.
Reply
Old Dec 9, 2006 | 05:13 AM
  #12  
zombie's Avatar
zombie
Lead Lap
iTrader: (1)
 
Joined: Mar 2006
Posts: 487
Likes: 4
From: SugarLand,Texas
Default

Originally Posted by salimshah
So what is the fascination of making the RX faster? .. exception is Lexmex who races RX on trac.


Salim
to look at the amazed faces of people who just got whomped by an suv. this is my satisfaction.
Reply
Old Dec 9, 2006 | 09:06 AM
  #13  
Oyvind's Avatar
Oyvind
Driver School Candidate
 
Joined: Nov 2006
Posts: 22
Likes: 0
From: Norway
Default

As far my info goes, the best way to "chip-tune" a car, is to be in the car, and logging the ECU while its driving. Then they get all of the readings concerning YOUR engine, and not a general tuning.
One of the problems with professional chip tuning, is that you have to/should drive on higher octan, since the "Tuners" take out the difference between a car, made for all-over-the-world set-up condition, and the best condition without "bad engine things" like low octane, sand, warm, cold, thin air, and so on.
The professional claims they get the car down app. 10-20% in fuel consume, and 7-15% up in HP. But also the car then prefer 98 octan.... ;o)
If it's too good to be truth, it usual is.... ;o)
But I would like to see their faces, too! In my rear mirror... ;o)
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sturds
RX - 1st Gen (1999-2003)
1
Apr 8, 2012 09:32 AM
iloveGS4xx
GS - 2nd Gen (1998-2005)
9
Jun 11, 2010 12:47 AM
Motu1
GS - 2nd Gen (1998-2005)
6
Mar 5, 2005 09:05 PM
jaehokang
RX - 2nd Gen (2004-2009)
6
Dec 31, 2004 06:32 AM
(f)-LEX-ible
GS - 2nd Gen (1998-2005)
7
May 12, 2004 03:44 PM




All times are GMT -7. The time now is 11:22 AM.

story-0
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-1
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-2
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-3
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-4
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-5
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-6
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-7
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-8
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-9
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE