Notices
Build Threads Details on Club Lexus IS-F owner vehicles

JDMV8 "Build" Thread/Progression: Dec. 2011 - Present

Thread Tools
 
Search this Thread
 
Old May 15, 2020 | 09:13 PM
  #136  
nvsaccord's Avatar
nvsaccord
Driver
15 Year Member
 
Joined: Aug 2006
Posts: 97
Likes: 9
From: ks
Default

did the RR front brace make a noticeable difference?
Reply
Old May 16, 2020 | 06:09 AM
  #137  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

Originally Posted by nvsaccord
did the RR front brace make a noticeable difference?
I think it noticeably complemented what was already done to the car.
Reply
Old May 17, 2020 | 10:41 PM
  #138  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

Group A Motoring "c-west style" front lip and Group A Motoring "Tom's style" rear diffuser with bigger fins.
The front lip has excellent fitment and rear diffuser had 85% fitment for me (probably because I have ISS forged tips). I installed some self-tapping screws on the bottom of the diffuser and the fitment looks fairly good now, I'd say 95%.



Reply
Old May 18, 2020 | 09:25 AM
  #139  
Jwconeil's Avatar
Jwconeil
Moderator
5 Year Member
Photogenic
Liked
Community Favorite
 
Joined: Apr 2017
Posts: 3,069
Likes: 978
From: Indiana
Default

Can you get on those race ramps, and do they provide enough clearance to change oil? My car takes longer to get off the ground than it does to maintain with the toms lip, and I’m not even lowered yet.
Reply
Old May 18, 2020 | 12:43 PM
  #140  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

Originally Posted by Jwconeil
Can you get on those race ramps, and do they provide enough clearance to change oil? My car takes longer to get off the ground than it does to maintain with the toms lip, and I’m not even lowered yet.
Yes, no problem with the race ramps. I have the low profile extensions. Yes, oil changes are a breeze and I actually changed my tranny mount while on the race ramps, although I was cramped.
Reply
Old May 18, 2020 | 01:56 PM
  #141  
lobuxracer's Avatar
lobuxracer
Tech Resource
15 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Jul 2006
Posts: 23,098
Likes: 4,767
From: Georgia
Default

Have you done a leakdown test on your engine? It is alarming you are filling up any catch can at all. I have no catch can and I've never had even a tiny puff of smoke at any time from my engine, much less at the track. Sounds like there is leakage past the rings in a big way.
Reply
Old May 18, 2020 | 04:31 PM
  #142  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

Originally Posted by lobuxracer
Have you done a leakdown test on your engine? It is alarming you are filling up any catch can at all. I have no catch can and I've never had even a tiny puff of smoke at any time from my engine, much less at the track. Sounds like there is leakage past the rings in a big way.
No leakdown, but compression was great, dynos high @ 425 dynojet, can never collects anything during street driving or spirited street driving, valvetrain has always been "happy" and loud, KCLV is high. The can filling up and manifold chugging oil happens only on track days during the summer on 80F+ days. I hate accessing the spark plugs on this engine, otherwise I'd do a leakdown.
Reply
Old May 19, 2020 | 07:41 AM
  #143  
lobuxracer's Avatar
lobuxracer
Tech Resource
15 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Jul 2006
Posts: 23,098
Likes: 4,767
From: Georgia
Default

I tracked my car on a 102F day in South Carolina with (sadly) pretty high humidity. Still nothing like this. Very weird.
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

Toyota and Lexus Join Mille Miglia For The First Time

 Verdad Gallardo
story-1

Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???

 Michael S. Palmer
story-2

5 Best & 5 Worst Lexus Daily Drivers

 Joe Kucinski
story-3

Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)

 Brett Foote
story-4

2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks

 Michael S. Palmer
story-5

Top 10 Most Confusing Things Lexus Has Ever Done!

 Joe Kucinski
story-6

2026 Lexus ES Review: Lexus Re-Embraces Founding Principles

 Michael S. Palmer
story-7

10 Lexus Bargains That are Cheaper Than a New Toyota RAV4

 Joe Kucinski
story-8

8 Weirdest Things Lexus Has Ever Built

 Verdad Gallardo
story-9

10 Lexus Designs That Have Aged Like Fine Wine

 Verdad Gallardo
Old May 23, 2020 | 07:54 PM
  #144  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

Enjoying the F at New River Gorge, WV




Last edited by JDMV8; May 23, 2020 at 07:58 PM.
Reply
Old Jun 21, 2020 | 08:47 PM
  #145  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

Put in an alcantara armrest from MY2014 ISF. Soft and cozy




Group A motoring CF fog covers to match their lip







Reply
Old Aug 22, 2020 | 07:17 PM
  #146  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

I was replacing a catch can hose reducer and I noticed the PCV valve has gone bad. There's a thread on it now and I suspect the bad PCV valve might be at least partially responsible for the car filling up the catch can and burning more oil than anticipated at the track. Shown is an ISF valve, Tundra valve, and LS600h valve. All fit the 2URGSE application. I decided to install the Tundra valve. It was a pain to install the new valve and new PCV hose as I had to remove the intake manifold partially (I lifted it partially with one hand and installed the PCV valve with the other). This consists of unplugging a bunch of harnesses, undoing the hard coolant lines on the passenger side of the engine, and undoing 8 torx bolts and 2 nuts on the manifold. I believe the Tundra valve is more robust and may last longer than the ISF valve (refer to thread on the ISF subforum).
Lobuxracer claims PCV valve removal is doable with a 3/8" 22m ratchet bit with extension. However, I'm not sure how easy it will be to install a new PCV hose as they are quite soft which makes it hard to secure on the PCV valve nipple unless you have more room to work with. Plastic harness shroud part # atop the manifold: 82817-30L40--you'll most likely need a new one (anything more than breathing on the plastic cover will crack it).


pictured is ls600h valve compatibility (all valves shown fit the same).

all done and back to being pretty


I got the Valentine V1 gen2 as well. It has bluetooth connectivity and when paired with V1Driver through iOs, it works quite nicely. It's fairly superior to its predecessor.

Reply
Old Aug 23, 2020 | 11:10 AM
  #147  
lobuxracer's Avatar
lobuxracer
Tech Resource
15 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Jul 2006
Posts: 23,098
Likes: 4,767
From: Georgia
Default

I'll make a video and show you how I did it. Didn't disconnect anything electrical, and definitely didn't lift the manifold, but it would be impossible without some OK stork pliers. I actually used a 1/2" drive socket 30mm in diameter and 38.3mm tall. It would be much easier with a 3/8" socket a little bit smaller in diameter and similar height. It can't be much taller though or you'll never get it over the nipple on the valve.

Last edited by lobuxracer; Aug 23, 2020 at 11:14 AM.
Reply
Old Aug 23, 2020 | 04:50 PM
  #148  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

Originally Posted by lobuxracer
I'll make a video and show you how I did it. Didn't disconnect anything electrical, and definitely didn't lift the manifold, but it would be impossible without some OK stork pliers. I actually used a 1/2" drive socket 30mm in diameter and 38.3mm tall. It would be much easier with a 3/8" socket a little bit smaller in diameter and similar height. It can't be much taller though or you'll never get it over the nipple on the valve.
That sounds good. I'm more interested to find out how you install a new PCV tube. I actually was able to install it in that small space, albeit without the clamp at first, by freezing the tube for ~30min and quickly getting it onto the nipple while it was stiff.

Last edited by JDMV8; Aug 25, 2020 at 08:39 PM.
Reply
Old Aug 25, 2020 | 10:04 AM
  #149  
ISFpowered's Avatar
ISFpowered
Instructor
 
Joined: Mar 2018
Posts: 990
Likes: 353
From: California
Default

Remove this bracket and bolt and you’ll have enough room.
Reply
Old Aug 31, 2020 | 04:31 PM
  #150  
JDMV8's Avatar
JDMV8
Thread Starter
Instructor
10 Year Member
Photogenic
Photoriffic
Liked
iTrader: (6)
 
Joined: Jan 2012
Posts: 1,232
Likes: 207
From: PA
Default

I found poly steering rack bushings by Daizen Sport Tuning for the 2IS so I decided to give them ago. The key to install is removing the 12mm bolt near the headers that attaches the steering rack to the steering shaft. This gives enough room for each of the bushings to be pressed out. I read that you could "poke" out the bushings with a screwdriver but mine were glued to the housing. I even tried soaking them overnight in gasoline (softens up rubbers) but no dice. Was this mod worth it? Not really. Was it noticeable? I immediately felt a more slingshot-like feel upon steering the wheel. MPSC2 with a track alignment is next. Specs will be

-3* front camber/-2.5* rear; 0 front toe; +0.1" rear toe; w/corner balancing. I previously had between -3 and -2* front and rear camber and the car just ate up curves. Sikky front and rear sway bars both set at middle settings. Aggressive rebound and compression (few clicks/turns from full stiff for front and rear).
Not enough room without unbolting steering rack from shaft^
^Here is the junction (right under the headers); make sure to get the splines completely back on when re-installing.
^PU bushings installed
Reply



All times are GMT -7. The time now is 01:30 AM.

story-0
Toyota and Lexus Join Mille Miglia For The First Time

Slideshow: A five-car lineup spanning more than five decades of Toyota performance and engineering will tackle one of Italy's most celebrated automotive routes.

By Verdad Gallardo | 2026-06-15 16:53:16


VIEW MORE
story-1
Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???

Slideshow: a quick review of the 2026 Lexus NX 350h F Sport Handling

By Michael S. Palmer | 2026-06-18 14:36:21


VIEW MORE
story-2
5 Best & 5 Worst Lexus Daily Drivers

Slideshow: The 5 best and 5 worst Lexus daily drivers

By Joe Kucinski | 2026-06-15 11:14:58


VIEW MORE
story-3
Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)

These five Lexus and Toyota models are the most sought-after on the market right now.

By Brett Foote | 2026-06-15 10:47:52


VIEW MORE
story-4
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks

Slideshow: the 2026 IS 350 isn't all that new, and that's why we love it!

By Michael S. Palmer | 2026-06-04 14:35:23


VIEW MORE
story-5
Top 10 Most Confusing Things Lexus Has Ever Done!

Slideshow: 10 most confusing things Lexus has ever done.

By Joe Kucinski | 2026-06-04 09:40:55


VIEW MORE
story-6
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles

Slideshow: Our First-Drive Review of the 2026 Lexus ES!

By Michael S. Palmer | 2026-05-29 20:30:16


VIEW MORE
story-7
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4

Slideshow: 10 Lexus bargain that are cheaper than a new Toyota.

By Joe Kucinski | 2026-05-20 10:28:20


VIEW MORE
story-8
8 Weirdest Things Lexus Has Ever Built

Slideshow: From hoverboards to luxury yachts, these are the strangest projects Lexus has ever attached its badge to.

By Verdad Gallardo | 2026-05-16 11:34:36


VIEW MORE
story-9
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