Komo-Tec EV4-435 reflash for the Evora 400 - Page 3 - LotusTalk - The Lotus Cars Community
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post #41 of 95 (permalink) Old 05-30-2019, 05:44 PM Thread Starter
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lotusquacious - please keep in mind that I did the 3rd cat delete plus K&N panel filter a while back so my "OE" dyno run isn't a truly stock car. Looking at charts from his dyno for a lot of other cars that I am familiar with, the power figures seem consistent with normal dynojet readings - not too high, not too low, about what I would have expected. For instance - 2016 Mustang GT (rated at 435hp new) with a CAI and tune put down 394hp on his dyno, which is pretty much exactly what I would have expected for that car with those modifications.

walter - highly unlikely. But they don't test for emissions where I live.
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post #42 of 95 (permalink) Old 05-30-2019, 06:01 PM
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But they don't test for emissions where I live.
In NJ, even an ECU recently made me fail emissions in NJ (certain sensors were off). I had to reflash to stock.
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post #43 of 95 (permalink) Old 05-31-2019, 04:20 AM
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Do you have link to his build?
He has joined the site but keeps getting the Needs Approval message, so can a mod look into this? His user name is "nosirrahx"

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post #44 of 95 (permalink) Old 05-31-2019, 05:25 AM
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I have approved the member's new posts, PM me if any approvals are needed.
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post #45 of 95 (permalink) Old 05-31-2019, 05:51 AM
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I have approved the member's new posts, PM me if any approvals are needed.
Thanks
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post #46 of 95 (permalink) Old 05-31-2019, 05:51 AM
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Thanks, he has access now. He did try to reply to your message but canít since needs more posts first
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post #47 of 95 (permalink) Old 05-31-2019, 06:08 AM
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@Champale - I meant emission readiness on an OBD plug in...

1966 BRG Elan SE (sold)
2008 Isotope Green Exige 240
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post #48 of 95 (permalink) Old 05-31-2019, 06:25 AM
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@Champale - I meant emission readiness on an OBD plug in...
On my S1 I ran a K-T tune then later a BOE tune both with headers, CAI, aftermarket CAT's and had no CEL's or OBD2 readiness issues, I would doubt issues here; this is very mild mod.

As to original power with a non stock 3rd cat delete and K&N filter, i would stay that is representative of the euro version that come standard without our Cali required 3rd Cat. As to the filter, a new stock filter performs as well as an oiled K&N, and this was verified on dyne with my car. Claimed advantage of the K&N is a slower drop off of airflow as the filters fill with dirt.

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post #49 of 95 (permalink) Old 05-31-2019, 06:33 AM
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Here is the OE vs 435 dyno comparison.
They are running some crazy A/F ratios for a SC car; no margins for bad gas, internal evaportive charge cooling and I was scared of 13 A/F ratios.

*** But in hindsight, maybe its the AF data collected? as the ratios are not different between pre and post tune, while the OEM ratios run about 10.5

'17 Evora Sport 410 GP (No. 1 of 9) LMS alloy pan, BOE headers, SSC harness bar
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post #50 of 95 (permalink) Old 05-31-2019, 07:44 AM
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@Redsled he is welcome to make more post to get 10 posts
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post #51 of 95 (permalink) Old 05-31-2019, 10:48 AM
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@Redsled he is welcome to make more post to get 10 posts
LOL I'm working on it but its odd replying to something and the conversation moving on like I don't exist (temporarily).
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post #52 of 95 (permalink) Old 05-31-2019, 10:50 AM
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@nosirrahx feel free to post to welcome new members, you are almost at 10 posts.
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post #53 of 95 (permalink) Old 05-31-2019, 01:51 PM Thread Starter
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Julian73 - no AFRs were recorded.

walter - please excuse my ignorance but I am not sure what exactly you are talking about.
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post #54 of 95 (permalink) Old 06-01-2019, 09:42 AM
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walter - please excuse my ignorance but I am not sure what exactly you are talking about.
He's asking if the tune throws any emissions check codes on the ECU. Many states only perform emissions testing by checking that the ECU says everything is working as intended.
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post #55 of 95 (permalink) Old 06-01-2019, 11:06 AM
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@Champale - I meant emission readiness on an OBD plug in...
MA does check that and I have never had an issue with my tuned/supercharged cars. Nosirrahx just got his sticker here with car having Komo tec 460 tune. When I install my tune next week I will check and verify that readiness is not effected.

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post #56 of 95 (permalink) Old 06-01-2019, 11:38 AM
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lotusquacious - please keep in mind that I did the 3rd cat delete plus K&N panel filter a while back so my "OE" dyno run isn't a truly stock car. Looking at charts from his dyno for a lot of other cars that I am familiar with, the power figures seem consistent with normal dynojet readings - not too high, not too low, about what I would have expected. For instance - 2016 Mustang GT (rated at 435hp new) with a CAI and tune put down 394hp on his dyno, which is pretty much exactly what I would have expected for that car with those modifications.

walter - highly unlikely. But they don't test for emissions where I live.
Thanks for the reminder about the extent of your alterations. I guess that opens up both ends a bit. I wouldn't think the cat delete and filter swaps alone (I mean taken together) would do all that much to alter the situation but in conjunction with the tune, the three are clearly synergistic. I have only the K&N. I hear more whine and intake noise, and the car is less subject to rev hangs. The butt doesn't suggest additional power from that alone but none was expected.

It looks like the A/F ratios are a consistent flat line under 15:1 for the bulk of the range? It looks good from here.

Lew
'17 Evora 400 MT

Last edited by lotusquacious; 06-01-2019 at 11:48 AM.
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post #57 of 95 (permalink) Old 06-01-2019, 11:51 AM
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It looks like the A/F ratios are a consistent flat line under 15:1 for the bulk of the range? We can agree it looks good!
I thought that was what it was showing also but he said A/F was not measured? At high RPM you would want to see them much lower than 15, my supercharged huracan is in 12's there. I took car for a drive today to see what A/F showed before doing tune but on two different apps I could not get it to to show A/F?.

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post #58 of 95 (permalink) Old 06-01-2019, 12:33 PM Thread Starter
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AFRs were not logged, guys!!

No emissions codes so far . . . only warning light I have right now is for the airbag, which started after I first reflashed the car, so it is either related to the tune or maybe my voltage dropped too low briefly? I always have the car on a battery tender when I am at home but maybe so?
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post #59 of 95 (permalink) Old 06-01-2019, 12:44 PM
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I should have had the cable the other day but it's sitting at customs here because of missing info . Suppose to get corrected Monday so I will see Tuesday. I'm leaving on a few day rally Friday so hoping I will able to install by then. How many days did it take them to get tune to you after you sent screenshot? Hoping since they messed up on shipping mine they put a rush on getting it done

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post #60 of 95 (permalink) Old 06-01-2019, 12:49 PM Thread Starter
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Hey Redsled - I sent them the ECU info on a Thursday evening and got the reflash on Monday morning.

Please let me know if you get the airbag light, too.
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