Lexus is350 ECU tuning. Finally possible??
Look, I was just trying to throw it out there to not be so pessimistic. This is not a very large community in terms of the car world. It was my hope that as these cars become more affordable and people buy them (my case) and want to mod them, there may be an increasing demand for a solution.
Instead, you guys keep harping on garbage snake oil "chips." I thought from what I wrote that I would get more constructive, educated responses.
Great attitudes... no wonder no one wants to even attempt at working on this.
Instead, you guys keep harping on garbage snake oil "chips." I thought from what I wrote that I would get more constructive, educated responses.
Great attitudes... no wonder no one wants to even attempt at working on this.
You'll never see a great response in terms of performance for the car, people will preach all day to "upgrade to a 350 or ISF" instead of telling you realistic options.
As far as tuing goes, D3 here in Houston has been the closest I know to cracking the ecu. They were able to tune an ISF (stock) to pick up I believe 25-45whp in the mid range. ISF and 2IS share a lot of the same ecu hurdles so some would carry over. Stock, these cars are tuned pretty well, even with a piggy back which a few have thrown on, they don't manage to gain more than I believe 15whp. Boosted with a piggy back increases the safety of the amount boost we are capable of and some power is gained, but not significant. Our injectors are at or near 100% duty cycle when boosted and without a way to get more fuel in, there becomes a brick wall without a full stand alone... I'm not the most educated in these area, but I have done my hw with what others have contributed here over the years and I am one of the last few boosted guys here. Don't let the posts like above ruin your time here.
Look, I was just trying to throw it out there to not be so pessimistic. This is not a very large community in terms of the car world. It was my hope that as these cars become more affordable and people buy them (my case) and want to mod them, there may be an increasing demand for a solution.
Instead, you guys keep harping on garbage snake oil "chips." I thought from what I wrote that I would get more constructive, educated responses.
Great attitudes... no wonder no one wants to even attempt at working on this.
Instead, you guys keep harping on garbage snake oil "chips." I thought from what I wrote that I would get more constructive, educated responses.
Great attitudes... no wonder no one wants to even attempt at working on this.
Sadly that's what the forum has become with a younger and younger crowd picking up a used one.
You'll never see a great response in terms of performance for the car, people will preach all day to "upgrade to a 350 or ISF" instead of telling you realistic options.
As far as tuing goes, D3 here in Houston has been the closest I know to cracking the ecu. They were able to tune an ISF (stock) to pick up I believe 25-45whp in the mid range. ISF and 2IS share a lot of the same ecu hurdles so some would carry over. Stock, these cars are tuned pretty well, even with a piggy back which a few have thrown on, they don't manage to gain more than I believe 15whp. Boosted with a piggy back increases the safety of the amount boost we are capable of and some power is gained, but not significant. Our injectors are at or near 100% duty cycle when boosted and without a way to get more fuel in, there becomes a brick wall without a full stand alone... I'm not the most educated in these area, but I have done my hw with what others have contributed here over the years and I am one of the last few boosted guys here. Don't let the posts like above ruin your time here.
You'll never see a great response in terms of performance for the car, people will preach all day to "upgrade to a 350 or ISF" instead of telling you realistic options.
As far as tuing goes, D3 here in Houston has been the closest I know to cracking the ecu. They were able to tune an ISF (stock) to pick up I believe 25-45whp in the mid range. ISF and 2IS share a lot of the same ecu hurdles so some would carry over. Stock, these cars are tuned pretty well, even with a piggy back which a few have thrown on, they don't manage to gain more than I believe 15whp. Boosted with a piggy back increases the safety of the amount boost we are capable of and some power is gained, but not significant. Our injectors are at or near 100% duty cycle when boosted and without a way to get more fuel in, there becomes a brick wall without a full stand alone... I'm not the most educated in these area, but I have done my hw with what others have contributed here over the years and I am one of the last few boosted guys here. Don't let the posts like above ruin your time here.
its quite simple. there is no reflash for toyota ecu powered vehicles, thats just the way it is and has been for the last 20ish years of their sports cars. unlike subaru, mitsubishi, bmw, etc... toyota vehicels need standalones to be tunable. a piggy back will work in some cases, but to me if you are going to spend the money might as well spend it right the first time. but companies need demand to invest r&d and money into things like standalones for tuning. despite everyone wanting it the demand in performance isnt high for the 2IS as for example a anything 1J/2J powered or 3sgte powered from past toyota sports cars.
thats just the way it is, this is probably the most realistic answer you can get/got in this whole thread. its more unrealistic to give somebody hope of something that hasnt/doesnt exist either. not everyone is going to coddle people because they feel the answers are "mean"
Driver School Candidate
Joined: Apr 2012
Posts: 1
Likes: 0
From: In
I saw a clip on one of the car shows on Spike TV that Bully Dog has cracked the ecu on the Toyota trucks and is now offering tuning via a handheld. Is this something that could have some trickle down effect?
Driver School Candidate
Joined: Jun 2013
Posts: 7
Likes: 0
From: Florida
Hello, I read a lot about reprogramming the ECU for IS, I found this website www.dnatuning.com and they offer a power increase of 15 BHP, well, In Chile CarPerformance is the dealer and the owners are friend of mine. I'm in contact with them and I think I will try...they are my friends and they will not damage my car.
I will share with you the final results...
P.S.: sorry for my english, but is not my mother language
I will share with you the final results...
P.S.: sorry for my english, but is not my mother language
Pole Position
Joined: Jul 2013
Posts: 370
Likes: 2
From: AB
So generally speaking (not specific to IS series or even lexus) ECU mods come in 3 flavors?
1. piggy back
2. reprogram
3. replace stock with aftermarket
Is that about correct?
And for IS350, option 1 might get you 10-15 hp and probably less once the ECU compensates?
2 is currently not possible (or at least not until very recently and people are still skeptical)?
Are there any options for 3? If not, what does this kind of thing usually cost in other cars?
Another question.
If there were significant HP gains or fuel economy gains to be had from changing the program in the ECU, why does lexus not do it? I'm kind of assuming that if someone did that, they'd run a real risk of breaking parts?
I just don't see why lexus would NOT do it, if it could be done with some measure of safety. After all, they are in competition with other manufacturers of sporty luxury cars.
Thx
1. piggy back
2. reprogram
3. replace stock with aftermarket
Is that about correct?
And for IS350, option 1 might get you 10-15 hp and probably less once the ECU compensates?
2 is currently not possible (or at least not until very recently and people are still skeptical)?
Are there any options for 3? If not, what does this kind of thing usually cost in other cars?
Another question.
If there were significant HP gains or fuel economy gains to be had from changing the program in the ECU, why does lexus not do it? I'm kind of assuming that if someone did that, they'd run a real risk of breaking parts?
I just don't see why lexus would NOT do it, if it could be done with some measure of safety. After all, they are in competition with other manufacturers of sporty luxury cars.
Thx
So generally speaking (not specific to IS series or even lexus) ECU mods come in 3 flavors?
1. piggy back
2. reprogram
3. replace stock with aftermarket
Is that about correct?
And for IS350, option 1 might get you 10-15 hp and probably less once the ECU compensates?
2 is currently not possible (or at least not until very recently and people are still skeptical)?
Are there any options for 3? If not, what does this kind of thing usually cost in other cars?
Another question.
If there were significant HP gains or fuel economy gains to be had from changing the program in the ECU, why does lexus not do it? I'm kind of assuming that if someone did that, they'd run a real risk of breaking parts?
I just don't see why lexus would NOT do it, if it could be done with some measure of safety. After all, they are in competition with other manufacturers of sporty luxury cars.
Thx
1. piggy back
2. reprogram
3. replace stock with aftermarket
Is that about correct?
And for IS350, option 1 might get you 10-15 hp and probably less once the ECU compensates?
2 is currently not possible (or at least not until very recently and people are still skeptical)?
Are there any options for 3? If not, what does this kind of thing usually cost in other cars?
Another question.
If there were significant HP gains or fuel economy gains to be had from changing the program in the ECU, why does lexus not do it? I'm kind of assuming that if someone did that, they'd run a real risk of breaking parts?
I just don't see why lexus would NOT do it, if it could be done with some measure of safety. After all, they are in competition with other manufacturers of sporty luxury cars.
Thx
thats why mostly all toyota that have some form of engine management either have a piggyback or full standalone. or there is option c, just mod the car and let the factory ecu keep control and hope you dont blow the motor
Pit Crew
Joined: May 2009
Posts: 172
Likes: 1
From: CA
Yea and the reason there isn't a stand alone unit that works for the 2IS is because they use direct injection and no one is offering the system to also drive the direct injectors and that goes for all the cars with DI on them. I figure now that GM is putting DI on all their new V8s I bet someone will finally do it. Currently I only know of companies that build equipment for race teams can provide such stuff and it's very expensive. It's like 5~10 grand.....
Rookie
Joined: Nov 2013
Posts: 50
Likes: 3
From: Virginia
I'm pretty sure Motec has released, or is soon to release, their M1 series which can handle direct injection. Motec has also indicated that a few people have been able to use their M800/880 with existing or aftermarket DI drivers...
Another Australian company, Adaptronic, also has a DI standalone that has been released or is about to be.
TrueStreet is right that these systems wind up being around $5k USD not including installation, tuning etc. and I imagine getting one to work with the factory electronics is not an easy task.
Another Australian company, Adaptronic, also has a DI standalone that has been released or is about to be.
TrueStreet is right that these systems wind up being around $5k USD not including installation, tuning etc. and I imagine getting one to work with the factory electronics is not an easy task.
One day it'll happen...just not today or maybe next year; but one day soon, it will happen!
Hell, how was this beast tuned to be competitive?
http://www.lynxae.co.uk/ForSale-1.htm
Hell, how was this beast tuned to be competitive?
http://www.lynxae.co.uk/ForSale-1.htm
Last edited by Gville350; Nov 25, 2013 at 12:33 PM.
Pit Crew
Joined: May 2009
Posts: 172
Likes: 1
From: CA
probably used stuff the race team had, lol. It possibly went into a half million dollar car, 10 thousand on engine management is just a drop in a bucket. And if it was done up with Toyota, then Toyota was tuning it or they were allowed to tune it, much like Tom's gets to tune stuff. Also if you look closely it says Lotus on the valve cover, they might have something to do with it as well.
Rookie
Joined: Nov 2013
Posts: 50
Likes: 3
From: Virginia
1x 4.0L formally aspirated race engine (Toyota works developed Lexus IS 350 production 3.5L V6 2GR-FSE engine modified to a 4.0L all steel race engine)
4.0 Litre V6 N/A Specification
• Bored & Stroked all Steel Crank & Rods
• Fully Dressed Weight: 145 Kgs.
• 6 Direct Injectors 6 Indirect Injectors
• CNC Ported 24 Valve Alloy Cylinder Heads
• 480+ BHP @ 8,500 RPM
• 350+ Ft Lbs Torque @ 5,500 RPM
• EFI Technology ECU with Traction Control
• Toyota Engine Developed for 24 hrs Racing
Contact: Chris Taylor
CTMS LTD
Tel: 0865 600704
E-mail: ctms@onebox.com
I want one...
4.0 Litre V6 N/A Specification
• Bored & Stroked all Steel Crank & Rods
• Fully Dressed Weight: 145 Kgs.
• 6 Direct Injectors 6 Indirect Injectors
• CNC Ported 24 Valve Alloy Cylinder Heads
• 480+ BHP @ 8,500 RPM
• 350+ Ft Lbs Torque @ 5,500 RPM
• EFI Technology ECU with Traction Control
• Toyota Engine Developed for 24 hrs Racing
Contact: Chris Taylor
CTMS LTD
Tel: 0865 600704
E-mail: ctms@onebox.com
I want one...
Rookie
Joined: Nov 2013
Posts: 50
Likes: 3
From: Virginia
So I emailed Chris (the seller):
The last bit sounds pretty promising. May be worthwhile to contact Cometic about a 2 or 3 mil HG. The S2000 guys have had pretty good success going that route with ARP's. I've been thinking about a dedicated fuel system for the secondary injectors like Nelson Racing runs in a few of their street cars. Running the secondaries with race gas or E85 should provide a lot of headroom...
We used a modified EFI Euro-12 ECU. There was no power advantage using the Direct Cylinder Fuel Injection, it only helped with fuel consumption on part throttle operation only. Toyota/Lexus 2GR-FSE N.A. 12 injector race engines were rated at 480 BHP and Turbo Engines for FIA GT2 air restricted to 520 BHP (0.8 BAR) V6 engines were designed/developed to produce 740 BHP unrestricted (1.0 BAR). With larger turbo package and higher boost we have seen peak above 1,000+ BHP!
These competition engines have both systems still installed depending on what application they are to be used in. The engine can switch between either direct or indirect injection system depending engine speed/load. All our race engines use proprietary developed competition parts (steel crank, rods, cams, high flow valve train, CNC ported heads, special pistons, modified OEM blocks and dry sum systems), our engine builder is an Ex-F1 engine developer.
2GR-FSE OEM engine parts can be fettled to achieve 400+ BHP in N.A and you would need to lower compression ratio and just increase the indirect injector fuel flow size to get 500+ BHP out of the OEM in turbo format.
Thanks for your interest.
These competition engines have both systems still installed depending on what application they are to be used in. The engine can switch between either direct or indirect injection system depending engine speed/load. All our race engines use proprietary developed competition parts (steel crank, rods, cams, high flow valve train, CNC ported heads, special pistons, modified OEM blocks and dry sum systems), our engine builder is an Ex-F1 engine developer.
2GR-FSE OEM engine parts can be fettled to achieve 400+ BHP in N.A and you would need to lower compression ratio and just increase the indirect injector fuel flow size to get 500+ BHP out of the OEM in turbo format.
Thanks for your interest.