New Product RR-Racing ISF ECU Tune.... FINALLY!!!
01-30-16, 09:19 PM
#541
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Not really, they read accurately up until the car gets rich, then they flatline and can't tell the difference between 11:1 or 10:1.
-Rafi
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01-30-16, 09:25 PM
#542
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When you are datalogging, some of the most useful information is the "learned ignition advance" and the "ignition correction." Unfortunately, only Techstream from Toyota can log those parameters.
If you use standard OBD tools, you can log total "ignition timing." This parameter is useful for us in case we have to diagnose power issues because we know approx what kind of timing we need to make our target power levels.
Regarding a wideband sensor... that is nice to have, but not required.
Rafi
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We Engineer Track Proven Upgrades For Your Lexus!
SUPERCHARGERS : ECU TUNING : SUSPENSION : EXHAUST : PPE MASTER DEALER
SUPERCHARGERS : ECU TUNING : SUSPENSION : EXHAUST : PPE MASTER DEALER
01-31-16, 12:55 PM
#543
Pole Position
You can keep assuming...I like concrete data. My car isn't stock..it has a JoeZ exhaust and intake, but I don't want to go the route of headers because I don't want the hassle of having a catless car in California, the install hassle, and the increased drone that comes with a catless car. Others may have their own reasons for not going with headers or decatting their stock manifolds. But I'm sure I'm not the only one who has a mildly modded ISF who would like some more power and better drivability and hope that ECU tune is the answer. Before I invest in this ECU tune, I would like concrete data that it will benefit a stock or mildly modded (exhaust +/- intake only).
Supraman16 pretty much said what I was going to point out and I want to cosign on his comments. I don't really intend to get crazy with my ISF' I also live in Cali but I don't have to worry about smog ( registered in another state) however I don't want to deal with gutting cats and dropping thousands in headers and exhausts, and have my **** sound like a rocket ship.
I would like a tune and really would like to see what guys are getting with the tune over stock. I may add a intake and an exhaust does sound temping but i got the ISF to have a good all around performance car without going down that aggressive tuning road.
I already have my 2JZ heavily modded MKII Supra.. and Modded Viggen I don't need another modded car. A part of me likes keeping the ISF stock but a part of me wants some go fast parts!
I'm looking forward to what you guys are getting with results once the tunes get to you and tests are done. If anyone with a Stock ISF gets a tune, Please post up your results I'm really curious as to what it yields.
Thanks Rafi for your great work for the ISF community.!
Token
01-31-16, 01:12 PM
#544
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We recently tuned a bone stock ISF. I know that the owner was very impressed with the pickup, but we haven't dynod the car yet. You can definitely feel the difference, particularly with the midrange torque.
Rafi
Rafi
Whew.... So i just read from page 19( when i last touched this thread) all the way to the end...
Supraman16 pretty much said what I was going to point out and I want to cosign on his comments. I don't really intend to get crazy with my ISF' I also live in Cali but I don't have to worry about smog ( registered in another state) however I don't want to deal with gutting cats and dropping thousands in headers and exhausts, and have my **** sound like a rocket ship.
I would like a tune and really would like to see what guys are getting with the tune over stock. I may add a intake and an exhaust does sound temping but i got the ISF to have a good all around performance car without going down that aggressive tuning road.
I already have my 2JZ heavily modded MKII Supra.. and Modded Viggen I don't need another modded car. A part of me likes keeping the ISF stock but a part of me wants some go fast parts!
I'm looking forward to what you guys are getting with results once the tunes get to you and tests are done. If anyone with a Stock ISF gets a tune, Please post up your results I'm really curious as to what it yields.
Thanks Rafi for your great work for the ISF community.!
Token
Supraman16 pretty much said what I was going to point out and I want to cosign on his comments. I don't really intend to get crazy with my ISF' I also live in Cali but I don't have to worry about smog ( registered in another state) however I don't want to deal with gutting cats and dropping thousands in headers and exhausts, and have my **** sound like a rocket ship.
I would like a tune and really would like to see what guys are getting with the tune over stock. I may add a intake and an exhaust does sound temping but i got the ISF to have a good all around performance car without going down that aggressive tuning road.
I already have my 2JZ heavily modded MKII Supra.. and Modded Viggen I don't need another modded car. A part of me likes keeping the ISF stock but a part of me wants some go fast parts!
I'm looking forward to what you guys are getting with results once the tunes get to you and tests are done. If anyone with a Stock ISF gets a tune, Please post up your results I'm really curious as to what it yields.
Thanks Rafi for your great work for the ISF community.!
Token
01-31-16, 08:40 PM
#551
Pole Position
Exciting..... and scary at the same time, talk about open heart surgery!
01-31-16, 10:02 PM
#552
Learned a lot today while our cars were getting tuned. Since mine was the first 2011 Rafi was doing, it took a bit longer so we had some time to talk.
On our way back I tried to follow Rafi's advice and used as much of the Rev range as I could. I also did a few pulls from different speeds on the high way and the torque increase, specially in the midrange, is noticeable. I'm not sure if it was because we disconnected the battery or because of the tune, but I also noticed the car ran smoother. I also noticed less fuel smell from being catless, when I got home.
I'll keep driving it following Rafi's advice to get the ecu to where it needs to be. Then eventually I'll test it at the track to see how much improvement all the mods provided. I'll report back if I notice any changes the more I drive it.
On our way back I tried to follow Rafi's advice and used as much of the Rev range as I could. I also did a few pulls from different speeds on the high way and the torque increase, specially in the midrange, is noticeable. I'm not sure if it was because we disconnected the battery or because of the tune, but I also noticed the car ran smoother. I also noticed less fuel smell from being catless, when I got home.
I'll keep driving it following Rafi's advice to get the ecu to where it needs to be. Then eventually I'll test it at the track to see how much improvement all the mods provided. I'll report back if I notice any changes the more I drive it.
Last edited by jat0223; 01-31-16 at 10:21 PM.
02-01-16, 07:31 AM
#554
Lexus Test Driver
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I see the RCF!
Hopefully Lexus left a similar amount on the table with the RCF, as I know the header gains are not as substantial with the re-designed OEM system.
Hopefully Lexus left a similar amount on the table with the RCF, as I know the header gains are not as substantial with the re-designed OEM system.
02-01-16, 07:55 AM
#555
Lexus Champion
This is the tune our community has waiting for 8 plus years for the IS-F thanks RR Racing. What are the preliminary WHP and BHP gains on the tune with headers? Also with the governor removed what would be the top speed?