2UR-GSE Engine - ClubLexus - Lexus Forum Discussion


Road Course and Auto-X Discussion about road course, time trial and autocross racing.

2UR-GSE Engine

Reply
 
 
 
Thread Tools Search this Thread
Old 08-10-17, 12:41 PM   #1
TGV8
Driver School Candidate
Thread Starter
 
TGV8's Avatar
 
Join Date: Aug 2017
Location: MI
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default 2UR-GSE Engine

Thought some of you would enjoy this 2UR-GSE engine build:

Stock block and head casting
5.0 Liter
600+ HP
500+ ft./lb.
381 lb. dressed weight
Designed, built and tuned in 100 days

Enjoy
Attached Thumbnails
2UR-GSE Engine-img_1821.jpg   2UR-GSE Engine-img_1762.jpg   2UR-GSE Engine-img_2073.jpg   2UR-GSE Engine-img_2069.jpg   2UR-GSE Engine-img_3115.jpg  

2UR-GSE Engine-img_3116.jpg  
TGV8 is offline   Reply With Quote
Old 08-16-17, 10:21 AM   #2
Leander311
Driver
 
Join Date: Mar 2011
Location: Texas
Posts: 103
Thanked 7 Times in 4 Posts
Default

Stunning... What's the application? Redline?

Interesting 90deg bed on the collector of that header...
Leander311 is offline   Reply With Quote
Old 08-17-17, 10:21 AM   #3
ba2sy
Lead Lap
iTrader: (1)
 
ba2sy's Avatar
 
Join Date: Oct 2015
Location: Arizona
Posts: 703
Thanked 16 Times in 15 Posts
Default

Subscribed...
ba2sy is offline   Reply With Quote
Old 08-18-17, 12:09 PM   #4
TGV8
Driver School Candidate
Thread Starter
 
TGV8's Avatar
 
Join Date: Aug 2017
Location: MI
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thank you for the compliment. This was a fun project.

The application was a development project for endurance road racing.
Redline in this iteration is 7500 RPM, and is a product of its air inlet restrictors (38mm x 2).
Without air restrictors, and some modifications to the camshafts / chain guides / tensioners / DI Pumps, it will easily rev to 9200 RPM

The 90deg bend in the secondary exhaust relates to it's routing in the chassis.
TGV8 is offline   Reply With Quote
Old 08-18-17, 12:56 PM   #5
Leander311
Driver
 
Join Date: Mar 2011
Location: Texas
Posts: 103
Thanked 7 Times in 4 Posts
Default

Quote:
Originally Posted by TGV8 View Post
Thank you for the compliment. This was a fun project.

The application was a development project for endurance road racing.
Redline in this iteration is 7500 RPM, and is a product of its air inlet restrictors (38mm x 2).
Without air restrictors, and some modifications to the camshafts / chain guides / tensioners / DI Pumps, it will easily rev to 9200 RPM

The 90deg bend in the secondary exhaust relates to it's routing in the chassis.
Whoa! So you've choked flow at 600hp at around 7,500rpm? In theory that's >700hp at 9200 given similar VE and some added windage losses. What a beauty.
Leander311 is offline   Reply With Quote
Old 08-18-17, 01:05 PM   #6
kitabel
Lead Lap
 
kitabel's Avatar
 
Join Date: May 2016
Location: New York
Posts: 740
Thanks: 0
Thanked 56 Times in 50 Posts
Default

From the picture of the air box with the snout entries: is that end piece a required and furnished restrictor (your entry must include the supplied part), or shop made?
The box design looks excellent but if those were fabricated with only the 38mm maximum ID rule, the snout entry should have a full 270 degree rollover radius, just like on the IR stacks. May be worth as much as 3%.
kitabel is offline   Reply With Quote
Old 08-18-17, 02:00 PM   #7
TGV8
Driver School Candidate
Thread Starter
 
TGV8's Avatar
 
Join Date: Aug 2017
Location: MI
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Restrictors for this application are unfortunately defined by FIA regulation, so there is not much freedom in design. If the only constraint were 3mm of the minor diameter, the same power could be achieved with a much smaller restrictor with a proper 270 deg entry and appropriate convergent / divergent angles - such as this 29mm pictured below.
Attached Thumbnails
2UR-GSE Engine-img_3158.jpg   2UR-GSE Engine-img_3159.jpg  
TGV8 is offline   Reply With Quote
Old 08-19-17, 07:20 AM   #8
kitabel
Lead Lap
 
kitabel's Avatar
 
Join Date: May 2016
Location: New York
Posts: 740
Thanks: 0
Thanked 56 Times in 50 Posts
Default

Are you allowed to mask the required shape?
kitabel is offline   Reply With Quote
Old 08-22-17, 10:27 AM   #9
TGV8
Driver School Candidate
Thread Starter
 
TGV8's Avatar
 
Join Date: Aug 2017
Location: MI
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by kitabel View Post
Are you allowed to mask the required shape?
Unfortunately not.
TGV8 is offline   Reply With Quote
Old 09-16-17, 09:17 PM   #10
liquidtek
Lead Lap
 
liquidtek's Avatar
 
Join Date: Feb 2014
Location: CO
Posts: 425
Thanked 16 Times in 10 Posts
Default

Just found this thread. Awesome build!
liquidtek is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Can someone explain this solid or hydraulic isfvss IS F (2008-2014) 17 06-29-17 06:37 PM
Modified 2UR-GSE LDEUX RC F (2015-present) 12 03-20-17 05:19 PM
Forced Induction for GSF TheREKing GS F (2016-present) 14 03-01-17 06:27 AM
Yamaha Tech Paper - RC F 2Ur-GSE Blue Top Jowett IS F (2008-2014) 16 02-16-17 07:43 AM
2ur-gse? rselby IS F (2008-2014) 6 08-02-16 07:22 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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


All times are GMT -7. The time now is 04:36 AM.


Copyright © 2000-2017 Internet Brands, Inc. All Rights Reserved
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: