Go Back   Club Lexus Forums > Lexus Model Forums > IS Models > IS - Second Generation > Performance
Sign in using an external account
Register Forgot Password?

Turbo IS250 Research

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 07-27-14, 03:50 PM   #1
GMReject
Driver School Candidate
Trader Score: (0)
 
Join Date: Jul 2014
Location: IL
Posts: 4
Default Turbo IS250 Research

Hey guys, just hopped on here to see if there have been any notable builds as far as the IS goes. I'll be working full time next year as an engineer and would like to start a new project.

My initial searching didn't yield much, so it looks like my experience with Lexus will be very similar to Saturn in the sense that I will not have the luxury of finding aftermarket components for this thing.

Any links/reading material would be appreciated.
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
GMReject is offline   Reply With Quote
Old 07-27-14, 04:49 PM   #2
GMReject
Driver School Candidate
Trader Score: (0)
 
Join Date: Jul 2014
Location: IL
Posts: 4
Default

Things I'd like to figure out is if anyone has a jobber sheet or knows of someone who has had a set of pistons made for these things. Also a source for forged rods would be nice.

Of course the direct injection should be an interesting obstacle to get over. Id rather not have to screw around with the PCM even though Id have access to the software at work. Time to see if Megasquirt has been used on DI cars.

Last edited by GMReject; 07-27-14 at 04:55 PM..
GMReject is offline   Reply With Quote
Old 07-27-14, 06:44 PM   #3
Gville350
Lexus Fanatic
Trader Score: (8)
 
Gville350's Avatar
 
Join Date: Mar 2011
Location: South Carolina
Posts: 5,865
Default

^You'll find out soon that there is ZERO tuning on these ECUs, and minimal benefits from piggyback units. Either you convert to a standalone or just boost the stock config to a "safe" 6-7psi. Those numbers of course vary from what method of boost AND size/type of compressor/turbo.

No, to my knowledge there are no pistons or rods available "off-the-shelf" for these motors. However, with money, you can get anyplace to custom make you anything.

Are your thoughts to do a remote turbo setup or make something work under the hood or perhaps post-header?
__________________
'06 IS350 - 8.6468 @ 81.81MPH
Mods - SRI, BCRs, full GFX kit
Gville350 is offline   Reply With Quote
Old 07-27-14, 06:52 PM   #4
4TehNguyen
Lexus Fanatic
Trader Score: (0)
 
Join Date: Jan 2006
Location: Houston, Texas
Posts: 17,730
Default

trade for a 350 or ISF
__________________
14 IS350 Nebula Gray/Rioja Red + FSport + ML/Nav + JoeZ Intake/Exhaust
06 IS350 Crystal White/Black + Sport/ML + 2014 IS F Sport Wheels
4TehNguyen is online now   Reply With Quote
Old 07-27-14, 07:13 PM   #5
GMReject
Driver School Candidate
Trader Score: (0)
 
Join Date: Jul 2014
Location: IL
Posts: 4
Default

The goal is to end up with something unique. And fast. And also fast.

I would abandon the factory management and DI system as there isnt any possible way to attempt to carry that over w/o a headache that Id rather avoid. I would hope that the previous generation 2.5 with MPFI will bolt it. If that is the case, then Id just throw an MS3 on it and begin building the turbo manifolds.

I havent seen the amount of space there is to work with, but is the area around the headers rather constraining?
GMReject is offline   Reply With Quote
Old 07-27-14, 08:26 PM   #6
idoke1
Pole Position
Trader Score: (1)
 
idoke1's Avatar
 
Join Date: Oct 2013
Location: California
Posts: 319
Default

^^ Do the famous 2jz swap. You will be FAST
__________________
2007 IS350 MODS: F sport intake, Custom 2.5 inch true dual to Borla mufflers. On Michelin PSS. 13.6 @ 101mph 1/4 mile with full interior.
idoke1 is offline   Reply With Quote
Old 07-27-14, 10:06 PM   #7
GMReject
Driver School Candidate
Trader Score: (0)
 
Join Date: Jul 2014
Location: IL
Posts: 4
Default

Not gonna play into all the 2jz nonsense. If I was going to swap in an inline 6, it would be the LL8.
GMReject is offline   Reply With Quote
Old 07-28-14, 02:43 PM   #8
WylieKylie
Pole Position
Trader Score: (1)
 
Join Date: May 2013
Location: UT
Posts: 299
Default

Quote:
Originally Posted by GMReject View Post
The goal is to end up with something unique. And fast. And also fast.

I would abandon the factory management and DI system as there isnt any possible way to attempt to carry that over w/o a headache that Id rather avoid. I would hope that the previous generation 2.5 with MPFI will bolt it. If that is the case, then Id just throw an MS3 on it and begin building the turbo manifolds.

I havent seen the amount of space there is to work with, but is the area around the headers rather constraining?
So the plan is:
custom pistons
custom rods
custom exhaust/turbo manifold
no DI (plan on leaving the injectors in the head?)
likely custom intake manifold
standalone engine management

Calling the area around the headers "rather constraining" is an understatement.

As long as we are dreaming I suggest sourcing an engine from here:
http://www.lynxae.co.uk/ForSale-1.htm

Or better yet since you want something fast and unique, don't start with a 2IS. Find a smaller, lighter, RWD car that you like and source an engine from here: www.h1v8.com
WylieKylie is offline   Reply With Quote
Old 07-28-14, 02:57 PM   #9
Sffd103
Fire Slayer
Trader Score: (16)
 
Sffd103's Avatar
 
Join Date: Apr 2010
Location: NorCal
Posts: 9,792
Default

Get an manual SC300 and install the 2JZ GTE. I think you'll get tired with this. Good luck.
Sffd103 is online now   Reply With Quote
Old 07-28-14, 03:48 PM   #10
heyarms
Lexus Champion
Trader Score: (5)
 
Join Date: Oct 2009
Location: SoTX
Posts: 2,491
Heyarms
Default

If you want unique, by all means go for it all and be unique. Hell I boosted my 250 for nothing more than the small boost in hp and to be unique for car shows...

Not sure how much you've turned over but just know that removing the stock ecu for a standalone would lose a lot of your cars features... Gauges, climate control, power steering, etc, without extensive knowledge and time to solve the wiring mess between various ecu's. I desperately researched to try to get a 2jz build into my car earlier this year and after taking to the companies who have worked on the swaps (the two stateside, one in a 2is, one in a 3is and Kazama in japan) I was forced to retreat until I want my IS to be essentially a shell with a ton of power...
__________________
MOAR-WIDE SOON...
AIMGAIN | WALD | SEIBON | PPE HEADERS & HFC | JOEZ RACING EXHAUST
LMS SUPERCHARGED | KSPORT | ACCUAIR | WORK VSXX | ROTORA BBK
PLX | STAGE 2 METH | STATUS RACING SPONSORED
heyarms is online now   Reply With Quote
Old 07-28-14, 06:14 PM   #11
Gville350
Lexus Fanatic
Trader Score: (8)
 
Gville350's Avatar
 
Join Date: Mar 2011
Location: South Carolina
Posts: 5,865
Default

Quote:
Originally Posted by GMReject View Post
I havent seen the amount of space there is to work with, but is the area around the headers rather constraining?
Around the headers, yes; but if you do some relocating or removing of items from the front area of the engine bay, I'm sure you could fit twins under the hood with creative piping. Removing the windshield sprayer tank would alone would be enough room for a T3 55 trim. The other would fit fine in the stock air box location. Others have said that twins could possibly fit post-header with more creative piping.

I've also thought about doing a single turbo "kit", like this bolt-on Nissan kit :

Click the image to open in full size.
__________________
'06 IS350 - 8.6468 @ 81.81MPH
Mods - SRI, BCRs, full GFX kit
Gville350 is offline   Reply With Quote
Old 07-28-14, 06:14 PM
 
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
LS1 Engine Swap JoeHen ES300 and ES330 15 08-05-14 06:56 PM
Trunk GS4001999 GS - Second Generation 1 06-12-14 04:25 PM
APP Sensor tn96dc GS - Second Generation 11 06-02-14 11:51 PM
Help SikHerLife CL of Hawaii 7 11-11-13 11:43 AM
stance-solutions cup kit seivonecsu Suspension and Brakes 24 09-24-12 07:43 PM

All times are GMT -7. The time now is 09:07 PM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info