IS200t tune
06-11-21, 12:22 AM
#4651
I'm not going for power just improved accelerator and a little more umphfff, the reduction in boost and throttle lag has been huge and I say this as someone that have the OVTune for over a year and a half.
06-12-21, 02:03 AM
#4653
I responded the below in the RC forum but also posting here in case anyone else has messed with WI.
I don't think you'll see much in terms of a peak hp gain, the main benefit with these tunes is the torque and subsequent mathematical hp increase under the curve as well as increased throttle response and transmission tuning to always be in that peak torque range.
Once my warranty is up I will install a progressive water/meth injection system to supplement the cooling system. That is a proven solution on nearly every turbo engine and a worthy venture.
I don't think you'll see much in terms of a peak hp gain, the main benefit with these tunes is the torque and subsequent mathematical hp increase under the curve as well as increased throttle response and transmission tuning to always be in that peak torque range.
Once my warranty is up I will install a progressive water/meth injection system to supplement the cooling system. That is a proven solution on nearly every turbo engine and a worthy venture.
06-12-21, 02:06 AM
#4654
I tried all maps, stuck with the second one with basic street driving. Haven't done much freeway driving but I'll try all of them on the freeway.
I'm not going for power just improved accelerator and a little more umphfff, the reduction in boost and throttle lag has been huge and I say this as someone that have the OVTune for over a year and a half.
I'm not going for power just improved accelerator and a little more umphfff, the reduction in boost and throttle lag has been huge and I say this as someone that have the OVTune for over a year and a half.
06-27-21, 07:55 AM
#4655
Intermediate
Folks with the d3 tune: Does it come with tuning software? If so, I hope someone can provide a screenshot of what tables are available for our 2.0T motors (no need to show the table values). Thank you!
06-27-21, 01:14 PM
#4656
I have a 2014 is350 f sport. I had been wondering if I should have bought an is200t instead for easy power gains, but after reading through some of this thread I think I'm happy with staying with the 350. Are you guys still chasing 300 to 400 whp? Would have been nice to see these cars make 400 hp with just bolt ons and a tune. I love the look of the 3IS, but they just dont have enough power for me (even the 350). Its why I've actually considered swapping the 5.0 from the RCF into my car, but if a 200t could make 400whp I'd happily take that solution too even tho I'd prefer the sound of the V8.
06-29-21, 01:31 AM
#4658
I have a 2014 is350 f sport. I had been wondering if I should have bought an is200t instead for easy power gains, but after reading through some of this thread I think I'm happy with staying with the 350. Are you guys still chasing 300 to 400 whp? Would have been nice to see these cars make 400 hp with just bolt ons and a tune. I love the look of the 3IS, but they just dont have enough power for me (even the 350). Its why I've actually considered swapping the 5.0 from the RCF into my car, but if a 200t could make 400whp I'd happily take that solution too even tho I'd prefer the sound of the V8.
Until then, who knows what the potential is but likely less than the 400whp range. The GS200t is my commuter and it has plenty of power with a tune only but just for fun I'll try WI once the warranty is up.
06-29-21, 02:48 AM
#4659
You probably made the right choice but I haven't seen a properly documented build (at least on this forum) with an upgraded turbo, improved cooling (water injection and/or physical changes to the intercooler) and before and after dyno results.
Until then, who knows what the potential is but likely less than the 400whp range. The GS200t is my commuter and it has plenty of power with a tune only but just for fun I'll try WI once the warranty is up.
Until then, who knows what the potential is but likely less than the 400whp range. The GS200t is my commuter and it has plenty of power with a tune only but just for fun I'll try WI once the warranty is up.
Based on my own experience with turbo cars I think 400 hp would be doable for the 8AR, but it's going to take alot of mods as you said. A bigger turbo, bigger downpipe/intake charge piping, as well as, an overhaul of the intercooler system and full exhaust to include shorty headers. The engine just needs much bigger everything from the turbo, to the intake side and the exhaust side so it can breathe. Lexus has it super choked up.
06-29-21, 05:42 AM
#4660
Intermediate
The information I receive in the following days ought to make the decision to stick with VFT or switch to D3 easier. I've made some cam timing and shift point changes to my current tune and would really like to be able to port them over, if I choose the latter.
Last edited by chezgk; 06-29-21 at 05:48 AM.
06-30-21, 01:31 AM
#4661
I figured since RRacing cracked the ECU we would start seeing more potential really be had from these cars. Toyota/Lexus has always been resistant to making turbo cars because they will never be as long lasting and reliable as an N/A engine. I suspect people's inability to make the power they were hoping for with only a few mods is due to the fact that Lexus has the 8AR so strapped down in the name of reliability.
Based on my own experience with turbo cars I think 400 hp would be doable for the 8AR, but it's going to take alot of mods as you said. A bigger turbo, bigger downpipe/intake charge piping, as well as, an overhaul of the intercooler system and full exhaust to include shorty headers. The engine just needs much bigger everything from the turbo, to the intake side and the exhaust side so it can breathe. Lexus has it super choked up.
Based on my own experience with turbo cars I think 400 hp would be doable for the 8AR, but it's going to take alot of mods as you said. A bigger turbo, bigger downpipe/intake charge piping, as well as, an overhaul of the intercooler system and full exhaust to include shorty headers. The engine just needs much bigger everything from the turbo, to the intake side and the exhaust side so it can breathe. Lexus has it super choked up.
I personally have no desire for any increase in the sound over oem so I'll just try the WI for fun.
06-30-21, 01:33 AM
#4662
Thank you for the reply. I've sent them my factory .bin file and am waiting for feedback whether or not my NX can be supported. I also inquired about some tables that were rather confusing in vfTuner, in hopes of better scaling in D3. Based on the information relayed to me so far, the factory tune, TTi, OV/VFT (I have all three), and D3 all run stoich 14.7:1 air/fuel ratios until past peak boost. That alone is quite a hurdle to making reasonable yet safe gains in power. It seems none of the tuners have found ways to force an open loop fueling map yet.
The information I receive in the following days ought to make the decision to stick with VFT or switch to D3 easier. I've made some cam timing and shift point changes to my current tune and would really like to be able to port them over, if I choose the latter.
The information I receive in the following days ought to make the decision to stick with VFT or switch to D3 easier. I've made some cam timing and shift point changes to my current tune and would really like to be able to port them over, if I choose the latter.
07-03-21, 09:05 PM
#4664
Intermediate
EDIT: okay I just back read and saw that you did.
