# just wanted to do a couple dyno pulls (JR TUNE INSIDE) **URL:** \ **Category:** Shift518 Automotive\ **Created:** [August 31, 2010, 4:43pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252 "2010-08-31T16:43:42Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![Alpine](https://avatars.discourse-cdn.com/v4/letter/a/4da419/32.png) [@Alpine](https://forums.speedlife.net/u/Alpine)\ **Post date:** [August 31, 2010, 9:52pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/21 "2010-08-31T21:52:39Z")
Those hot-wire MAF sensors (like the one in my car) are based on equilibrium, not air temperature. The equilibrium airflow is going to be the same regardless of how hot or cold it is outside. Supposedly, the sensor will compensate for temperature changes, but in my own experience that isn’t even close to being the case. Sometimes in the winter you also can hit higher maf frequencies that weren’t dialed in during the summer months, causing problems as well. A hot-wire maf will compensate, though only to a certain degree. My car isn’t that sensitive but maybe others are. ---
**Author:** ![tdi\_logik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tdi_logik/32/6310_2.png) [@tdi\_logik](https://forums.speedlife.net/u/tdi_logik)\ **Post date:** [August 31, 2010, 9:56pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/22 "2010-08-31T21:56:49Z")
no wideband, how ever with ecuflash i can integrate it to run externally and be able to watch it in evoscan ---
**Author:** ![Alpine](https://avatars.discourse-cdn.com/v4/letter/a/4da419/32.png) [@Alpine](https://forums.speedlife.net/u/Alpine)\ **Post date:** [August 31, 2010, 10:23pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/23 "2010-08-31T22:23:41Z")
How does that tune work? Does it have a table for WOT fueling? I’m only familiar with HP Tuners. ---
**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\ **Post date:** [September 1, 2010, 4:22am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/24 "2010-09-01T04:22:10Z")
your semi right chris , if we were talkin about a older car it could get hairy between w/s tunes . newer cars are way smarter and can compensate for weather ,fuel , and so on as long as its tuned right ---
**Author:** ![Boost\_Creep](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boost_creep/32/6366_2.png) [@Boost\_Creep](https://forums.speedlife.net/u/Boost_Creep)\ **Post date:** [September 1, 2010, 5:23am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/25 "2010-09-01T05:23:14Z")
> [@WNY SCCA Solo Event 8 - ECCN - 9/2/07](https://forums.speedlife.net/t/wny-scca-solo-event-8-eccn-9-2-07/34609/39): > > no I mean the difference in **idol** and shit. The car doesnt drive/accelerate any different according to my butt dyno. :wierd:lol ---
**Author:** ![jdaniels](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdaniels/32/6399_2.png) [@jdaniels](https://forums.speedlife.net/u/jdaniels)\ **Post date:** [September 1, 2010, 6:28am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/26 "2010-09-01T06:28:37Z")
Hmm did Ryan Seacrest tune your car, drew?! ---
**Author:** ![Wayne64SS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wayne64ss/32/6365_2.png) [@Wayne64SS](https://forums.speedlife.net/u/Wayne64SS)\ **Post date:** [September 1, 2010, 9:02am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/27 "2010-09-01T09:02:18Z")
I’ll race you from a dig to 30mph?!?!?!? ---
**Author:** ![psi2high](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/psi2high/32/6320_2.png) [@psi2high](https://forums.speedlife.net/u/psi2high)\ **Post date:** [September 1, 2010, 9:15am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/28 "2010-09-01T09:15:09Z")
So when did you go back and do dyno pulls ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [September 1, 2010, 9:28am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/29 "2010-09-01T09:28:28Z")
> [@Another Day, Another Viper...](https://forums.speedlife.net/t/another-day-another-viper/34284/30): > > I’ll race you from a dig to 30mph?!?!?!? Yes!! ---
**Author:** ![tdi\_logik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tdi_logik/32/6310_2.png) [@tdi\_logik](https://forums.speedlife.net/u/tdi_logik)\ **Post date:** [September 1, 2010, 11:43am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/30 "2010-09-01T11:43:55Z")
> [@Another Day, Another Viper...](https://forums.speedlife.net/t/another-day-another-viper/34284/30): > > I’ll race you from a dig to 30mph?!?!?!? i’ll race juu from a dig to however fast you wanna go > [@psi2high"](#): > > So when did you go back and do dyno pulls its a software, Virtual Dyno Room, one of the stock ecu developers created it ( Jack of Trades) ---
**Author:** ![Wayne64SS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wayne64ss/32/6365_2.png) [@Wayne64SS](https://forums.speedlife.net/u/Wayne64SS)\ **Post date:** [September 1, 2010, 11:59am UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/31 "2010-09-01T11:59:38Z")
dig to 30mph. lets do it. ---
**Author:** ![tdi\_logik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tdi_logik/32/6310_2.png) [@tdi\_logik](https://forums.speedlife.net/u/tdi_logik)\ **Post date:** [September 1, 2010, 1:05pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/32 "2010-09-01T13:05:44Z")
> [@Crazzy ass BUS.](https://forums.speedlife.net/t/crazzy-ass-bus/34715/13): > > How does that tune work? Does it have a table for WOT fueling? I’m only familiar with HP Tuners. what do u mean how does it work? it works beastly and blows hp-tuners outta the WATER ---
**Author:** ![jdaniels](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdaniels/32/6399_2.png) [@jdaniels](https://forums.speedlife.net/u/jdaniels)\ **Post date:** [September 1, 2010, 1:17pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/33 "2010-09-01T13:17:05Z")
Anyone that (properly) tunes a vehicle will interpolate between known points and extrapolate beyond. GM happens to use MAF and MAP sensors on vehicles to obtain actual values. VE tables are primarily used for backup in the event of MAF failure, but in some instances the inputs of both are used. Above a set engine speed the MAF takes over fully in most vehicles. MAF tables are calibrated from the factory, but generally are set to err on the side of caution. VE tables even more-so. IAT sensors are used to calculate air density, so temperature shouldn’t have much of an affect if ANY if the sensor is in good working order. I certainly wouldn’t go saying that a summer tune = winter destruction… ---
**Author:** ![jdaniels](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdaniels/32/6399_2.png) [@jdaniels](https://forums.speedlife.net/u/jdaniels)\ **Post date:** [September 1, 2010, 1:18pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/34 "2010-09-01T13:18:38Z")
> [@Looking for pocket bike Racers](https://forums.speedlife.net/t/looking-for-pocket-bike-racers/34742/3): > > what do u mean how does it work? it works beastly and blows hp-tuners outta the WATER No. ---
**Author:** ![Alpine](https://avatars.discourse-cdn.com/v4/letter/a/4da419/32.png) [@Alpine](https://forums.speedlife.net/u/Alpine)\ **Post date:** [September 1, 2010, 1:43pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/35 "2010-09-01T13:43:44Z")
> [@Looking for pocket bike Racers](https://forums.speedlife.net/t/looking-for-pocket-bike-racers/34742/3): > > what do u mean how does it work? it works beastly and blows hp-tuners outta the WATER :rofl Again, like I said on the last page, it’s obviously dependent on platform. With MY car and my own personal EXPERIENCE over the last 3 years of owning it and tuning it, I’ve found out that the factory MAF/ecu is not sensitive enough to pick up on changes in air density. SO, in the WINTER, when it’s COLDER, it needs to be re-calibrated. Also, the LSJ motor has a non-return style fuel system, so the #4 cylinder bank (furthest away on the rail) runs especially lean when the temperature changes and melts pistons and other fun things of that nature. ---
**Author:** ![TurboTravis](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbotravis/32/6406_2.png) [@TurboTravis](https://forums.speedlife.net/u/TurboTravis)\ **Post date:** [September 1, 2010, 2:05pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/36 "2010-09-01T14:05:22Z")
> [@Looking for pocket bike Racers](https://forums.speedlife.net/t/looking-for-pocket-bike-racers/34742/3): > > what do u mean how does it work? it works beastly and blows hp-tuners outta the WATER Yep. A good tuner can do WAY more with the Evo ECU than a GM ecu, it’s just the way it is. ---
**Author:** ![jdaniels](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdaniels/32/6399_2.png) [@jdaniels](https://forums.speedlife.net/u/jdaniels)\ **Post date:** [September 1, 2010, 2:25pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/37 "2010-09-01T14:25:07Z")
> [@Another Day, Another Viper...](https://forums.speedlife.net/t/another-day-another-viper/34284/33): > > Yep. A good tuner can do WAY more with the Evo ECU than a GM ecu, it’s just the way it is. I would love to see data that supports this. Most GM VCM’s are extremely open. I don’t know of a single feature that it doesn’t have that I would desire (especially when you consider a custom OS). I will admit that my tuning has been limited to eManage, crome, crome pro, hondata, HP tuners and flashpro, but out of any of them HP tuners is by far the most in depth. Most of others have such horribly generic tables and options that I feel like I’m playing with a Fisher-Price product. ---
**Author:** ![TurboTravis](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbotravis/32/6406_2.png) [@TurboTravis](https://forums.speedlife.net/u/TurboTravis)\ **Post date:** [September 1, 2010, 2:26pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/38 "2010-09-01T14:26:48Z")
> [@FS: Deisel Toureg](https://forums.speedlife.net/t/fs-deisel-toureg/34708/10): > > I would love to see data that supports this. Most GM VCM’s are extremely open. I don’t know of a single feature that it doesn’t have that I would desire (especially when you consider a custom OS). > > I will admit that my tuning has been limited to eManage, crome, crome pro, hondata, HP tuners and flashpro, but out of any of them HP tuners is by far the most in depth. Most of others have such horribly generic tables and options that I feel like I’m playing with a Fisher-Price product. Can you control boost, and change the boost in each gear with a GM ECU and HP Tuners? ---
**Author:** ![Alpine](https://avatars.discourse-cdn.com/v4/letter/a/4da419/32.png) [@Alpine](https://forums.speedlife.net/u/Alpine)\ **Post date:** [September 1, 2010, 2:30pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/39 "2010-09-01T14:30:16Z")
> [@FS: Deisel Toureg](https://forums.speedlife.net/t/fs-deisel-toureg/34708/11): > > Can you control boost, and change the boost in each gear with a GM ECU and HP Tuners? ---
**Author:** ![TurboTravis](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbotravis/32/6406_2.png) [@TurboTravis](https://forums.speedlife.net/u/TurboTravis)\ **Post date:** [September 1, 2010, 2:32pm UTC](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252/40 "2010-09-01T14:32:34Z")
> [@Possible Warped Rotar...or something else?](https://forums.speedlife.net/t/possible-warped-rotar-or-something-else/34702/11): > Ok,how about getting a car with a disabled MAF to pass the plug in inspection test? [Previous page](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252.md?page=1) [Next page](https://forums.speedlife.net/t/just-wanted-to-do-a-couple-dyno-pulls-jr-tune-inside/254252.md?page=3)