Notices
GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Anyone use NOS on there Lexus?

Thread Tools
 
Search this Thread
 
Old Aug 2, 2001 | 10:39 AM
  #16  
enginyr's Avatar
enginyr
Banned
 
Joined: May 2001
Posts: 2,058
Likes: 0
From: Alabama
Default

Originally posted by SuperLex
Any drawbacks/Benefits of using NOS on the GS400?

WOULD YOU RECOMEND NITROUS ? Is it illegal? How does it feel every time you squeeze...
Reply
Old Aug 2, 2001 | 10:42 AM
  #17  
gs300haltech's Avatar
gs300haltech
Driver
 
Joined: Jul 2001
Posts: 107
Likes: 0
From: Dallas TX
Default

Its not illegal if installed properly. CARB kits are available from NOS but they usually only make them for mustangs and camaros. YOu would really have to check your local law authority to see if its okay. I pass smog test fine here in TX. We barely even care for pollutants.
Reply
Old Aug 2, 2001 | 10:48 AM
  #18  
msray's Avatar
msray
Pole Position
 
Joined: Feb 2001
Posts: 303
Likes: 0
From: Santa Barbara, Ca
Default still wondering about price

maybe i missed it but how much did your kit cost?

MIke
Reply
Old Aug 2, 2001 | 10:54 AM
  #19  
gs300haltech's Avatar
gs300haltech
Driver
 
Joined: Jul 2001
Posts: 107
Likes: 0
From: Dallas TX
Default

559 Front TexasNitrous.com I think there retail now is 599 i am not too positive.
Reply
Old Aug 2, 2001 | 12:55 PM
  #20  
Mean Gene's Avatar
Mean Gene
Lexus Test Driver
 
Joined: Feb 2001
Posts: 1,199
Likes: 1
From: Alabama
Question Texas Nitrous?

HalTech - Is that the old "Top Gun" nitrous company? I helped a friend install one of their kits on his race car a few years ago & it was designed with the 2 stage solenoid/jetting like U were looking for. His squeezed 75 hp off the line & the second stage was good for an additional 125 hp at 3k rpms+. Nice kit & well thought out. Top Gun was from Texas but I don't recall exactly which city. BTW - that price of $599 is the same as the Nitrous Express kit for the GS4.
Reply
Old Aug 2, 2001 | 01:10 PM
  #21  
gs300haltech's Avatar
gs300haltech
Driver
 
Joined: Jul 2001
Posts: 107
Likes: 0
From: Dallas TX
Default

i think you may be right the topgun nitrous company could be tnt i am not sure its out of tyler tx. I like them over the other kits do to the fact that its so complete,. They even give you the NHRA blow down tube which is required to be in all cars running NOS.
Reply
Old Aug 2, 2001 | 09:28 PM
  #22  
ktrends's Avatar
ktrends
Driver School Candidate
 
Joined: Jun 2001
Posts: 44
Likes: 0
Default

the blow down tube is only needed for hatch backs..

anyone ran a gs400 at the track or dyno on spray?
Reply
Old Aug 3, 2001 | 05:01 AM
  #23  
Mean Gene's Avatar
Mean Gene
Lexus Test Driver
 
Joined: Feb 2001
Posts: 1,199
Likes: 1
From: Alabama
Lightbulb Dry versus Wet

IMO & IME, the wet system is the safest system as it does a better job of assuring that the extra gasoline is atomized with the nitrous. By using a "fogger" nozzle & tapping into the fuel system feed rail, U help eliminate the chance of an injector sticking. The dry system relies on the factory injectors for the fuel enrichening by cycling them more frequently. This is what concerns me - if the factory injectors are already running static ( never closing - typical for anything over 85% duty cycle ) as they probably are for those of us with intake/exhaust mods, then how can they flow more fuel? Even by increasing fuel pressure, U can still force only so much liquid through a fixed orifice. The dry system's advantage is that it supposedly will yield more horsepower. Without question, the direct port setup is the best - assures equal distribution of nitrous/fuel per cylinder & looks FINE!! This could be done with one of NOS's custom plumbing kits - basically bending tubing once the intake runners R tapped for the nozzles. Maybe if I win the lottery??
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

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

 Michael S. Palmer
story-1

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-2

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

 Joe Kucinski
story-3

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-4

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

 Michael S. Palmer
story-5

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

 Joe Kucinski
story-6

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

 Brett Foote
story-7

Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

 Michael S. Palmer
story-8

Top 10 Lexus & Toyota Models of the 1990s RANKED!

 Joe Kucinski
story-9

10 Great Toyotas That Could Have Been Lexus Models

 Joe Kucinski
Old Aug 3, 2001 | 07:36 AM
  #24  
Kerr's Avatar
Kerr
Driver
 
Joined: Apr 2001
Posts: 105
Likes: 0
From: Bristol Va
Default

Ktrends,

What is up with supraforums.com!!!!???? Everytime i try to get it i get: Forbidden
You don't have permission to access / on this server.

What does that mean, and why did i all the sudden get that message?

Reply
Old Aug 3, 2001 | 07:39 AM
  #25  
ktrends's Avatar
ktrends
Driver School Candidate
 
Joined: Jun 2001
Posts: 44
Likes: 0
Default

there is no way to runa dry kit on our cars "400s" due to the lack of a fuel return line. Wet is the only way to fly...

Dry kits are only safer due to the fact they cannot back fire threw the intake manifold. And yes everything you said about the injectors etc on a dry kit is true..
Reply
Old Aug 3, 2001 | 07:48 AM
  #26  
LexusRules's Avatar
LexusRules
Lexus Champion
 
Joined: Feb 2001
Posts: 4,681
Likes: 2
From: International
Default

would direct port just be drilling into the intake manifold on a GS3 and putting an injector in each one? that WOULD look sweet on a GS3!!
Reply
Old Aug 3, 2001 | 08:28 AM
  #27  
gs300haltech's Avatar
gs300haltech
Driver
 
Joined: Jul 2001
Posts: 107
Likes: 0
From: Dallas TX
Default

you tap the intake plenum at each runner approx 3-4inchs from the intake manifold flange. it runs with brass lines and then that connects to your solonoids which then coonnects to your fuel and nos lines.
Reply
Old Aug 3, 2001 | 01:34 PM
  #28  
ktrends's Avatar
ktrends
Driver School Candidate
 
Joined: Jun 2001
Posts: 44
Likes: 0
Default

GS3 it is down, has been for like a week now. Supraforums is TO unstable...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ssmoked
Car Chat
3
May 3, 2010 03:07 PM
kbh
Performance
20
Mar 15, 2010 10:45 PM
DemosISF
IS F (2008-2014)
1
Feb 17, 2010 11:38 AM
sbuck863
2Gen GS430 / 400/ 300 Classifieds (98-05)
6
Aug 30, 2008 12:34 AM
TexasLex
SC - 1st Gen (1992-2000)
6
Nov 21, 2005 10:25 PM




All times are GMT -7. The time now is 09:23 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

Slideshow: reviewing the 2026 Lexus TX 550h+ Luxury plug-in hybrid crossover SUV!

By Michael S. Palmer | 2026-03-05 19:04:47


VIEW MORE
story-8
Top 10 Lexus & Toyota Models of the 1990s RANKED!

Slideshow: Top 10 Lexus and Toyota model of the 1990s ranked.

By Joe Kucinski | 2026-03-04 12:35:11


VIEW MORE
story-9
10 Great Toyotas That Could Have Been Lexus Models

Slideshow: 10 Toyotas that could have been Lexus models.

By Joe Kucinski | 2026-02-19 11:44:33


VIEW MORE