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Speedy

Mike @ Ost Works To Fix Challenger Throttle Lag

157 posts in this topic
Carburetors...

 

 

 

 

 

 

 

 

 

 

 

 

 

wheres the Calid problems now ! 

lol, too complicated for most people you need a timing light, a piece of chalk and a screw driver.

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So this is not the normal "fly by wire" lag you get if you are completely off the gas?

 

I have experienced this but if you are slightly on the gas and the throttle is engaged, mine responds instantly.

 

Is this something new compared to that?

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I hate CALID changes..  lol

 

You are just too cheap to pay for the tune upgrade lol

Yeah, and as you can see Chris.. your "experience" can vary.    

 

I am NEVER updating. lol The car runs. The Trinity works. Not changing anything.

Because of J's issues the top of my predator box says ( do not upgrade for any reason) just incase a tuner thinks about upgradeing my shit.

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So this is not the normal "fly by wire" lag you get if you are completely off the gas?

 

I have experienced this but if you are slightly on the gas and the throttle is engaged, mine responds instantly.

 

Is this something new compared to that?

 

ANY lag is not "normal".  What you are describing is exactly what mine would do on the AG calibration.  Completely off the throttle it lags for just about a full second before the car responds.  If I stay slightly on the throttle it did not lag, but how can you cruise around in 4th on the throttle all the time...I constantly back on and off the throttle to regulate speed. 

 

It never lags under any circumstances on the AE calibration.  So no, it is NOT normal to have that happening to your car. 

 

Here is a data log showing exactly what happens.  Pink line is my foot stepping on the throttle.  Purple is the actual throttle blade opening.

 

challenger_throttle_lag.jpg

 

If I just tap on the gas, it never responds as shown below.  I'd never drive like this but it the AE cal would bump the throttle blade instantly:

 

challenger_throttle_lag_2.jpg

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"You are just too cheap to pay for the tune upgrade lol "

Hey now! I'm actually suppose to call SHR today to send the money over  lol but yes, I can be a cheap bastard sometimes haha

 

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I updated my Trinity about 3 weeks ago (LONG ass story), however this is my ID..68052005AD

 

Glad you are getting it dialed in J, and BIG kudos to Mike for excellent service!

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ANY lag is not "normal".  What you are describing is exactly what mine would do on the AG calibration.  Completely off the throttle it lags for just about a full second before the car responds.  If I stay slightly on the throttle it did not lag, but how can you cruise around in 4th on the throttle all the time...I constantly back on and off the throttle to regulate speed. 

 

It never lags under any circumstances on the AE calibration.  So no, it is NOT normal to have that happening to your car. 

 

Here is a data log showing exactly what happens.  Pink line is my foot stepping on the throttle.  Purple is the actual throttle blade opening.

 

challenger_throttle_lag.jpg

 

If I just tap on the gas, it never responds as shown below.  I'd never drive like this but it the AE cal would bump the throttle blade instantly:

 

challenger_throttle_lag_2.jpg

That fucking SUCKS.  I do not see this issue with my 2012 SRT8 auto.

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Jay I'm sorry you have to deal with such bullshit. I can't believe Dodge will not resolve this issue. Really piss's me off that we spend our money do all the R&D and they don't give a fuck about the dam cars or the customers.

 

If I have to I tear all there shit out of my car and go after market like Fast or one of the others, then thats what I'll do.  I'm so sick of Hemi specialist what a bunch of fucken slackers in the Hemi market. The absolute worst vendors in the racing industry.

 

My car is at a Ford Race Shop. What a pleasure doing business witth people that want to see me go fast.

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Well, someone that knows the intricacies of these CALs would have to come in and explain all that Jim.  I doubt there are that many CALs though.  Each one has to be EPA approved and that's expensive.  There is likely just one or two for 6 speeds and automatics, but those no doubtedly change year over year.  Mine's a 2009, yours a 2010. 

Interesting! Why would one year R/T with the same drivetrain have a different CAL ID From the previous? I would love to know more.

 

And here's something to muddy the waters even more -

 

http://www.arfc.org/complaints/2009/dodge/challenger/?q=&page=2

 

Owner has a 2010 R/T six-speed with the SAME CAL ID as you, Jay - 05187899AG. He even "upgraded" from the same CAL ID you had, Jay - 05187899AE

 

But he's from California - wonder if it's a California emissions thing, or maybe that isn't applicable any more?

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After buying the Diablo Trinity and letting it update my car's CAL ID from 05187899AE to 05187899AG

I have the same CAL ID 05187899AG

 

Trinity 1r08

 

Let me know if you want my tune to compare.

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I have the same CAL ID 05187899AG

 

Trinity 1r08

 

Let me know if you want my tune to compare.

 

 

Now this is interesting Denis.  You have no lag in your throttle when you let off and ease back on it?

 

My crom is 1r09b but it's the CAL ID that I'd think matters.

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Well, I cannot remember not having this issue. I always did think it sucked but just dealt with it. Mine is also an 09 R/T 6sp.

 

Mine is unmarried now bc of the engine swap but it is v. 1r08c  and it was the AG calid that I updated to in Dec. 2011.

 

Maybe I will get lucky since my ecu has been flashed with the 6.1 info.

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Now this is interesting Denis.  You have no lag in your throttle when you let off and ease back on it?

 

My crom is 1r09b but it's the CAL ID that I'd think matters.

I can't try anything now, but in the summer my car is my daily driver, and any lag as pronounced as what your logs show would have driven me insane.

 

As I said, let me know if Mike wants to have a look at my tune.  I'm still using the stock maggie tune designed for 6 psi (but it's scaled to 11 psi).

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Mine is a 2010 srt 6spd, now when the car was stock before the blower I had bad throttle lag issues even running the diablo canned tunes on the trinity. Now after the blower install these issues went away. :wacko: I don't have a clue which calid I'm running, I'll have to go look  because you have gotten my curiousity up now.

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Mike has always been extremely diligent and thorough with every tune he has ever tackled with any of our stuff. There have been those cams that were labeled "untuneable" by others that Mike was able to make tuneable no problem. If I could complain about anything, its how thorough he is and thats just me being picky. The man will not stop till the customer is happy. He has done an amazing job with Alchargers car and he will probably be tuning my car (yes it still exists somewhere) when I finally finish it. :)

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my car also has the lag that Speedy is referring to, but i didnt mention it to mike while he was tuning my car because the strange thing with mine, and as stupid as this sounds, it was only noticeable when i put the 17 drag radial wheels on it and the TPMS light came on...at first i thought it went into "limp mode" because the car thought the rear tires were flat or something (a wild guess on my part). it was only lagging in the lower RPM area too. after i put the stock wheels on and reloaded to a 93 daily tune from mike, it was back to normal. i dont know if resetting the adaptives did something to "fix" it temporarily or what. my experience with mike was awesome as well! good to hear he made some headway with this issue.

 

edit...just to be clear, the lag was there before mike ever did any tuning for me. it was when i updated my predator is when it was noticed.

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I just visited Mike at his shop and he told me about trying to figure out the lag issue. He impressed me for sure and next weekend I am driving to his place with another guy I just installed a maggie for and mike is tuning our cars, I cannot wait to see him work his majic in person.

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I think every single person who I've talked to who's had Mike tune their car uses the exact same adjective... "Relentless".

 

He tuned my car to perfect Daily Driving manners with the cam bolt loose and the timing set bouncing around... The man is a f'n wizard.

 

He's just f'n spot on. Quick revisions and honestly wants to know how the car is running and any issues, or inconsistencies. If you don't tell him, and he finds out... he's back on the case, asking for logs, and wants it right.

 

I've never met a tuner like that. 

 

Great write up Speedy, and let us know how it progresses.

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Well, here is a TTDyno from a 4th gear pull with Mike's 93 octane tune lol 

 

Keep in mind this is all from e-mail tuning!

 

I'm pretty happy! 

 

OST_Street_Tune_TTDyno_web.jpg

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