RR Racing SuperCharger / Tuning - All GSF model years now - Page 2 - ClubLexus - Lexus Forum Discussion

Go Back  ClubLexus - Lexus Forum Discussion > Lexus Model Forums > GS Models > GS F (2016-present)
RR Racing SuperCharger / Tuning - All GSF model years now >

RR Racing SuperCharger / Tuning - All GSF model years now

Notices
GS F (2016-present) Discussion topics related to the GS F model

RR Racing SuperCharger / Tuning - All GSF model years now

 
Old 03-16-19, 03:51 AM
  #16  
RRRacing
Sponsor
iTrader: (1)
 
Join Date: Dec 2014
Location: Pennsylvania
Posts: 1,872
Thanked 429 Times in 238 Posts
Default

Originally Posted by lobuxracer View Post
Toyota forge all their cranks and rods. Pistons are cast though. Didn't seem to be a problem with the 2JZ-GTE engines up to about 2.5x rated hp. That's the real question - did Lexus skimp on something, like they did on the 2JZ-GE rods in the IS300s? Those engines suffered under boost with the OEM rods. But all you needed to do was replace them with 2JZ-GTE rods and life was grand. Few are daily driving the 2UR in the IS, RC, or GS F models with superchargers to be able to say what the reliability is, or how it has changed with boost. The only thing that is certain is, it is not logical to expect the same service life from an NA engine that has been boosted compared to the same engine that has not.

Here is a fact for you, we have had ZERO RCF/GSF boosted engine or transmission failures in the past 2 years since introducing our SC kit, and you can bet that if there was a single failure, that info would be plastered all over social media

Pistons are hypereutectic cast aluminum but there are 8 of them on a 2ur-gse and 6 of them on a 2jz-gte.... one of the other keys to the reliability of the RCF engine is the robustness of the stock oil and water cooling system. We extensively track test our cars and have had zero issues with overheating. Those of you who donít Road Race have even less to worry about as itís impossible to overheat these cars on the street. Keeping oil and coolant temps in check is critical, as the pistons are oil cooled. Piston ringland failure occurs due to 2 main reasons: (1) time spent at high temperature weakens the aluminum and (2) overheating can cause piston rings to butt and put high stress on the piston ringland.

Regarding Tundra engine failures, with a mass marketed kit like that there are bound to be failures caused by boneheads who fail to service their cars, or run crap gas. There were other factors as well, like insufficient cooling for heavy duty applications, and even some issues with the tune Toyota was providing. Lastly, we arenít big fans of installing positive displacement roots blowers on high compression NA cars. They make more boost at low to mid range which puts more stress on drivetrain components. We are also not big fans of the roots blowers with air/water heat exchangers as they tend to heat soak badly, particularly at lower vehicle speeds.... so heat soak combined with high boost at low rpms is potentially a bad combo.

Rafi

Last edited by RRRacing; 03-16-19 at 04:11 AM.
RRRacing is online now  
The Following User Says Thank You to RRRacing For This Useful Post:
Lurker9 (03-16-19)
Old 03-16-19, 07:15 AM
  #17  
Lurker9
Driver
 
Join Date: Oct 2014
Location: FL
Posts: 154
Thanked 6 Times in 4 Posts
Default

Originally Posted by RRRacing View Post



Here is a fact for you, we have had ZERO RCF/GSF boosted engine or transmission failures in the past 2 years since introducing our SC kit, and you can bet that if there was a single failure, that info would be plastered all over social media

Pistons are hypereutectic cast aluminum but there are 8 of them on a 2ur-gse and 6 of them on a 2jz-gte.... one of the other keys to the reliability of the RCF engine is the robustness of the stock oil and water cooling system. We extensively track test our cars and have had zero issues with overheating. Those of you who donít Road Race have even less to worry about as itís impossible to overheat these cars on the street. Keeping oil and coolant temps in check is critical, as the pistons are oil cooled. Piston ringland failure occurs due to 2 main reasons: (1) time spent at high temperature weakens the aluminum and (2) overheating can cause piston rings to butt and put high stress on the piston ringland.

Regarding Tundra engine failures, with a mass marketed kit like that there are bound to be failures caused by boneheads who fail to service their cars, or run crap gas. There were other factors as well, like insufficient cooling for heavy duty applications, and even some issues with the tune Toyota was providing. Lastly, we arenít big fans of installing positive displacement roots blowers on high compression NA cars. They make more boost at low to mid range which puts more stress on drivetrain components. We are also not big fans of the roots blowers with air/water heat exchangers as they tend to heat soak badly, particularly at lower vehicle speeds.... so heat soak combined with high boost at low rpms is potentially a bad combo.

Rafi
What are the steps to get your kit into a GSF in Toronto?
Lurker9 is offline  
Old 03-16-19, 08:28 AM
  #18  
RRRacing
Sponsor
iTrader: (1)
 
Join Date: Dec 2014
Location: Pennsylvania
Posts: 1,872
Thanked 429 Times in 238 Posts
Default

Originally Posted by Lurker9 View Post
What are the steps to get your kit into a GSF in Toronto?
Take a mini vacation to Philadelphia, 3 days later drive home Supercharged with a big grin on your face

Rafi
RRRacing is online now  
Old 03-16-19, 09:59 AM
  #19  
TrevorR
Pole Position
iTrader: (1)
 
Join Date: May 2016
Location: MD
Posts: 202
Thanked 19 Times in 18 Posts
Default

Originally Posted by RRRacing View Post



Here is a fact for you, we have had ZERO RCF/GSF boosted engine or transmission failures in the past 2 years since introducing our SC kit, and you can bet that if there was a single failure, that info would be plastered all over social media

Pistons are hypereutectic cast aluminum but there are 8 of them on a 2ur-gse and 6 of them on a 2jz-gte.... one of the other keys to the reliability of the RCF engine is the robustness of the stock oil and water cooling system. We extensively track test our cars and have had zero issues with overheating. Those of you who donít Road Race have even less to worry about as itís impossible to overheat these cars on the street. Keeping oil and coolant temps in check is critical, as the pistons are oil cooled. Piston ringland failure occurs due to 2 main reasons: (1) time spent at high temperature weakens the aluminum and (2) overheating can cause piston rings to butt and put high stress on the piston ringland.

Regarding Tundra engine failures, with a mass marketed kit like that there are bound to be failures caused by boneheads who fail to service their cars, or run crap gas. There were other factors as well, like insufficient cooling for heavy duty applications, and even some issues with the tune Toyota was providing. Lastly, we arenít big fans of installing positive displacement roots blowers on high compression NA cars. They make more boost at low to mid range which puts more stress on drivetrain components. We are also not big fans of the roots blowers with air/water heat exchangers as they tend to heat soak badly, particularly at lower vehicle speeds.... so heat soak combined with high boost at low rpms is potentially a bad combo.

Rafi
I'm positive that you guys have done extensive testing and are great at what you do, not being sarcastic.

However, Iím curious to know how many boosted RCF/GSF are out there?
TrevorR is offline  
Old 03-16-19, 10:12 AM
  #20  
RRRacing
Sponsor
iTrader: (1)
 
Join Date: Dec 2014
Location: Pennsylvania
Posts: 1,872
Thanked 429 Times in 238 Posts
Default

Originally Posted by TrevorR View Post


I'm positive that you guys have done extensive testing and are great at what you do, not being sarcastic.

However, Iím curious to know how many boosted RCF/GSF are out there?
sent you a pm
RRRacing is online now  
 


Thread Tools
Search this Thread

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: