Official IS-F Drag Time/Dyno Time/Performance Thread - Page 3 - ClubLexus - Lexus Forum Discussion


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Official IS-F Drag Time/Dyno Time/Performance Thread

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Old 02-24-09, 10:05 AM   #31
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Originally Posted by houstonT View Post
A rule should be that you only post SAE numbers...STD is an artificially inflated correction factor...hell, I think my 383 rwhp SAE was 390+ STD.
Peter
Agreed, SAE and smoothing 5, as it seems to be the gold standard.
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Old 02-24-09, 10:19 AM   #32
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Agreed, SAE and smoothing 5, as it seems to be the gold standard.
This is EXACTLY how I have been Dyno'ing since 2002 on the DynoJet..

Also, good idea for members to post Fuel Octane, Dyno brand used & miles on the IS-F..

and

Base or Modified...
List of modifications is always a must, Including different Wheels, etc etc..

6th Gear is the Correct & Preferred gear for the Dyno Testing the IS-F .

Nice Work so far Gang!!!

Joe Z

Last edited by Joe Z; 02-24-09 at 12:49 PM.
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Old 02-24-09, 12:15 PM   #33
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Are those numbers stock? That graph looks so smooth for an IS-F, even with CF set at 5. Good numbers though.


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mine

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Old 02-24-09, 12:40 PM   #34
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This graph shows my stock dyno vs. my MHP ECU v1 tune, both done at the same place, SAE corrected, CF set at 5, 93 octane, 6th gear pull.

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Old 02-24-09, 01:01 PM   #35
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Juanca, don't you think it's odd that you are the only one to have a baseline graph that doesn't show power gained from 5200-6000rpms? Your MHP graph looks normal. I remember you stated that you had to drive hard to get there and didn't have a chance to cool down or anything for your baseline run. I'm just asking because having a bum baseline would increase the gains shown by the MHP tune.
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Old 02-24-09, 01:28 PM   #36
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caymandive,

Odd? You're making it sound like I intentionally did something fishy during my stock dyno pull so MHP's tune would look better. I posted this numbers and graphs the same day I went to the dyno, about 2 weeks before having the MPH tune. Why didn't anybody complain? Also, AFAIK my peak WHP on the stock dyno was at ~6300RPM, it was 349.34WHP SAE corrected with CF set at 5. It's higher than the average IS-F so far, not the highest though. I've been transparent and honest throughout the whole tuning process, and just in case there are doubts here are my 3 stock dyno pulls together, the last 2 of the session are even lower:

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Old 02-24-09, 01:42 PM   #37
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caymandive,

Odd? You're making it sound like I intentionally did something fishy during my stock dyno pull so MHP's tune would look better. I posted this numbers and graphs the same day I went to the dyno, about 2 weeks before having the MPH tune. Why didn't anybody complain? Also, AFAIK my peak WHP on the stock dyno was at ~6300RPM, it was 349.34WHP SAE corrected with CF set at 5. It's higher than the average IS-F so far, not the highest though. I've been transparent and honest throughout the whole tuning process, and just in case there are doubts here are my 3 stock dyno pulls together, the last 2 of the session are even lower:
No, I'm not trying to make it sound like you did anything fishy and I can agree that you have been very transparent and honest throughout. You did state that you had a hot car going in for your baseline so I'm just using that as a possible reason for the bum appearing baseline as it looks like timing was pulled. I'm just saying that now that I have seen several people post their dyno charts just over the past few days (which is why nothing was brought up in the past) I'm seeing a trend with the power curve between 5200-6000ish as they all go up, but yours does not. I'm not saying the MHP tune didn't give you some power, but I don't believe the power gained was as much as what your baseline comparison shows.

Anyway I don't want to go too far off topic, so shoot me a PM or something and we can discuss.
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Old 02-24-09, 07:22 PM   #38
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I posted this in another thread, stock vs. joe z intake/exhaust...93 Valero octane gas...18k miles on the clock...6th gear pull...and I was wearing a matching (matching to the car) silver shirt during the dyno session

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Old 03-25-09, 07:43 AM   #39
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60' - 1.9889
330' - 5.4096
1/8 ET - 8.1838
1/8 MPH - 90.00
1/4 ET - 12.5510
1/4 MPH - 113.49

This run was at Lonestar Motorsports Park at TX2K9.
Peter
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Old 03-26-09, 12:40 PM   #40
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Has anyone done a long term dyno secession with the MHP tune to see how its holding up? and is there anyone other than Juanca with the tune?
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Old 03-26-09, 12:57 PM   #41
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Tomorrow night I'll be going to the same track that I went before the MHP tune (Palm Beach International Raceway - www.racepbir.com), but this time I'll have a helmet!

Before the tune I ran [email protected] (only attempt at the 1/4 mile, don't ask me why), so I want to see the numbers now that I've been using MHP's tune for the past 3 months. I'll keep the important variables the same as in the before-tune run, 1/2 gas, all electronics off, VSC off, SPORT, manual, and full weight. I'll post the new times probably on Monday, I'll be quite busy on Saturday and Sunday attending the Sony Ericsson Open in Miami...



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Has anyone done a long term dyno secession with the MHP tune to see how its holding up? and is there anyone other than Juanca with the tune?
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Old 03-26-09, 03:30 PM   #42
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Good luck Juanca and enjoy the tennis tournament! Can't wait to see the tune results from the track!

Last edited by BigMikeISF; 03-27-09 at 11:35 AM.
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Old 03-26-09, 08:40 PM   #43
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Its a tennis tournament lol. I should be there also
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Old 03-27-09, 11:35 AM   #44
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Well then that post is edited Enjoy! I'm sure the weather will be awesome
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Old 03-27-09, 04:07 PM   #45
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mrxslayx when are you doing a dyno!?
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