Is ecu worth it?
#1
Is ecu worth it?
I've seen quite a few pages on this my question is with doing an ecu on my car
Does it decrease life of the car?
Does it void the warranty?
Does gas mileage get better or worse?
And if I wanted to get tha done and change out pulley where would I go to get this done. ( I live in indiana)
Though research I noticed it costs about 2k is that correct?
Does it decrease life of the car?
Does it void the warranty?
Does gas mileage get better or worse?
And if I wanted to get tha done and change out pulley where would I go to get this done. ( I live in indiana)
Though research I noticed it costs about 2k is that correct?
#3
Search this Jaguar board (for XFR) for BigCat09's detailed posts on this topic. See, e.g., https://www.jaguarforums.com/forum/x...options-97314/
I believe he is a big fan of the tune and pulley swap he did with a tuner named EcuTuningGroup.
Others have used the same tuner for their 5.0 supercharged engines in other cars. There's a thread on that on the XJ board as well.
https://www.jaguarforums.com/forum/x...upgrade-64589/
And on the XK board....
https://www.jaguarforums.com/forum/x...upgrade-64594/
I believe he is a big fan of the tune and pulley swap he did with a tuner named EcuTuningGroup.
Others have used the same tuner for their 5.0 supercharged engines in other cars. There's a thread on that on the XJ board as well.
https://www.jaguarforums.com/forum/x...upgrade-64589/
And on the XK board....
https://www.jaguarforums.com/forum/x...upgrade-64594/
#4
I've seen quite a few pages on this my question is with doing an ecu on my car
Does it decrease life of the car? About the same since the ETG tune just unlocks what is already there.
Does it void the warranty? I had my dealer look at the ECU and they say they cant even see any difference and looks stock to them so there is no issue with the ETG tune.
Does gas mileage get better or worse? About the same, but I can say if there is any difference it would be only 1 MPG city, 2MPG highway better at my attempts. Most of the time I am loving the heavy foot feel so its hard to state a fact on that.
And if I wanted to get tha done and change out pulley where would I go to get this done. ( I live in indiana). ETG makes it easy now, They ship you the laptop to your house and guide you on the phone, very simple and fast to do. They also supply the pulley tool which takes the nightmare out of changing the pulley which it really is without that pulley tool. They make it fast and easy. just not cheap.
Though research I noticed it costs about 2k is that correct?
Does it decrease life of the car? About the same since the ETG tune just unlocks what is already there.
Does it void the warranty? I had my dealer look at the ECU and they say they cant even see any difference and looks stock to them so there is no issue with the ETG tune.
Does gas mileage get better or worse? About the same, but I can say if there is any difference it would be only 1 MPG city, 2MPG highway better at my attempts. Most of the time I am loving the heavy foot feel so its hard to state a fact on that.
And if I wanted to get tha done and change out pulley where would I go to get this done. ( I live in indiana). ETG makes it easy now, They ship you the laptop to your house and guide you on the phone, very simple and fast to do. They also supply the pulley tool which takes the nightmare out of changing the pulley which it really is without that pulley tool. They make it fast and easy. just not cheap.
Though research I noticed it costs about 2k is that correct?
#5
Let me add to this for all of you. I have only heard of 1 issue and it is pulley related. I spoke to a guy with a new 2012 XFR who did a pulley change and first he said the pulley backed off and shredded a belt. Then he put a new pulley on and then he said soon after the blower shaft got pushed in. No idea how that can happen at all but sounds like there is a blower set pin/shaft issue that might not be related to the pulley at all. This is the only story I have heard out of al the folks who have done pulley changes on the 5.0L motor.
#6
I did the ECU Group pulley and tune as well. Got the car back on its feet last night. Also did the H&R springs and spacers.
Will report my impressions after I've had more time to form them, probably on the XK board. In the very short term, as far as the engine is concerned, I detect nothing worse about its operation under normal driving conditions. Throttle tip-in may be a little sharper, but there is no bogging or flat spot in that part of the rpm band I could test at night
Will report my impressions after I've had more time to form them, probably on the XK board. In the very short term, as far as the engine is concerned, I detect nothing worse about its operation under normal driving conditions. Throttle tip-in may be a little sharper, but there is no bogging or flat spot in that part of the rpm band I could test at night
#7
That is cause most tuners now with cars with drive by wire make it more sensitive to give the more responsive "FEEL" to it. I hate that feeling and wish they did not.
Remember to give it a small beating for the first 112 miles for the adaptics to learn and lock in the initial programming. When you flash it everything is reset from scratch.
Remember to give it a small beating for the first 112 miles for the adaptics to learn and lock in the initial programming. When you flash it everything is reset from scratch.
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#9
I did the ECU Group pulley and tune as well. Got the car back on its feet last night. Also did the H&R springs and spacers.
Will report my impressions after I've had more time to form them, probably on the XK board. In the very short term, as far as the engine is concerned, I detect nothing worse about its operation under normal driving conditions. Throttle tip-in may be a little sharper, but there is no bogging or flat spot in that part of the rpm band I could test at night
Will report my impressions after I've had more time to form them, probably on the XK board. In the very short term, as far as the engine is concerned, I detect nothing worse about its operation under normal driving conditions. Throttle tip-in may be a little sharper, but there is no bogging or flat spot in that part of the rpm band I could test at night
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I kind of agree with what DGL is alluding too. I'm just not sure how many have done it that are active on the forum, so maybe that is why it is hard to find reviews and information about the XKR tune. I noticed on the ETG facebook page they tuned an XKR-S to around 620HP. After that I called and talked to a guy named "Jags" I think it was...and he told me the XKR-S responds well to the tune and it makes the car so fast it is like a blur, like warp speed style.
I asked him about reliability for that kind of power in this drivetrain and he said it would be completely fine, no problems. My thinking was why didn't Jaguar step up the XKR-S GT a bit if it is so safe? They changed a lot on that car but kept the power the same.
So then he was going to find a local shop to do the pulley install on my car but he never got back to me. I believe he said they send out a custom pulley puller and a laptop, and he tunes the car remotely with a pre-made file.
I have also read a lot of good things and a lot of bad things about Jags and his former company. I am just not sure if it is even worth the risk anymore. The car is fast enough and I'm not getting any younger. A few years ago I'd be all over it...but, I have more experience now with modding cars and sometimes its just not worth it and sometimes it is. I am honestly unsure with this one, but I am leaning on the safe side and just not doing it. I guess I'm just not "sold" yet.
I asked him about reliability for that kind of power in this drivetrain and he said it would be completely fine, no problems. My thinking was why didn't Jaguar step up the XKR-S GT a bit if it is so safe? They changed a lot on that car but kept the power the same.
So then he was going to find a local shop to do the pulley install on my car but he never got back to me. I believe he said they send out a custom pulley puller and a laptop, and he tunes the car remotely with a pre-made file.
I have also read a lot of good things and a lot of bad things about Jags and his former company. I am just not sure if it is even worth the risk anymore. The car is fast enough and I'm not getting any younger. A few years ago I'd be all over it...but, I have more experience now with modding cars and sometimes its just not worth it and sometimes it is. I am honestly unsure with this one, but I am leaning on the safe side and just not doing it. I guess I'm just not "sold" yet.
The following users liked this post:
DGL (07-30-2013)
#19
I could go on a lot on this topic but to be super short on it here it is. For the good or bad ETG-JAGS does not go out of his way to post dyno sheets among other things since his clientele is mostly wealthy people who just want it done and will take his word on it. I have even worked on many cars Jags has tuned by chance as I know some of these people from work and events . I and a few others have posted before and after dyno sheets to show proof of the gains and I for one thought as all of you did exactly until I took the plunge and risked my $$$. It works!!!
Now about the power being made as in matt above is asking about. Jag has these all built the same way with software tweaks being the only difference and the new one with the 8 speed tranny. The XKR 175 and GT don't really need the more power as the chassis and SW has been tweaked in a different way and the results Jag wanted to see was enough. I would love to have a GT or even the 175 just to feel how they drive and not for the power as we know you can buy the cheapest 2010 XF/XK/XJ Supercharged version and make all the same power as all models. And when TaTa motors took over Jag and then implicated the new 5.0L version they wanted to be conservative just a lil bit to see how the product does in the real world and not in the factory. Also Jag was informed by ZF that the 6 speed tranny breaking threshold was XXX as they found out in the BMW X6M ETC was failing. The new 8 Speed ZF is better but will only hold a small amount more power so they left it alone and tweaked the chassis and shift points more.
And on a final note I leave you all with this video of the XKR175. Please watch the whole thing as there is some funny quotes dropped about the passenger seat positions and the tire burning.
3:41 and 4:55
Now about the power being made as in matt above is asking about. Jag has these all built the same way with software tweaks being the only difference and the new one with the 8 speed tranny. The XKR 175 and GT don't really need the more power as the chassis and SW has been tweaked in a different way and the results Jag wanted to see was enough. I would love to have a GT or even the 175 just to feel how they drive and not for the power as we know you can buy the cheapest 2010 XF/XK/XJ Supercharged version and make all the same power as all models. And when TaTa motors took over Jag and then implicated the new 5.0L version they wanted to be conservative just a lil bit to see how the product does in the real world and not in the factory. Also Jag was informed by ZF that the 6 speed tranny breaking threshold was XXX as they found out in the BMW X6M ETC was failing. The new 8 Speed ZF is better but will only hold a small amount more power so they left it alone and tweaked the chassis and shift points more.
And on a final note I leave you all with this video of the XKR175. Please watch the whole thing as there is some funny quotes dropped about the passenger seat positions and the tire burning.
The following 2 users liked this post by BigCat09:
Matt in Houston (07-31-2013),
UsmaXKR2010 (10-11-2013)
#20
I have watched that video before several time...it is great for sure.
The 6-Speed ZF is one of the concerns I had, as far as HP increases and how they could affect the transmission. I would love to know what the magic number is that may cause failure in the ZF.
If Jags would have got back with me I would have probably gone for it. I was encouraged after speaking with him.
The 6-Speed ZF is one of the concerns I had, as far as HP increases and how they could affect the transmission. I would love to know what the magic number is that may cause failure in the ZF.
If Jags would have got back with me I would have probably gone for it. I was encouraged after speaking with him.