SRT Q&A Session: 3/12/08 @ 6pm - 8pm EST

[shodanusmc]

Any word on the 6.4 as an SRT option/upgrade? or a Blower or Turbo option? Also, anything on some MOPAR software to up the ponies while still keeping a warranty?

[Deuuuce]

Any chance a "major automotive publication" will be loaned an F1 equipped Charger SRT-8, THIS time with F1s for a better showing at VIR??

[SRTengineers]

Originally Posted by ChallengerSRT8

When might the drivesrt.com website be updated with Challenger info?

In process as we speak...stay tuned.

[SRTengineers]

Originally Posted by RobAGD

While this is not a strictly SRT engine question because I have also seen it in the 6.1 and 5.7.

But when datalogging the car using a a DashHawk or a Predator there have been rather consistant harmonic or knock in these cars at 3700-4500 ish rpm.

Is there a natural harmonic ( false knock ) in these motors in that range or is it real knock that seems to be rather presistant?


-Robert

I think you're trying to eyeball knock and it's not that simple. The knock sensor system used across Chrysler engines is fairly complex and very accurate. The data you're seeing, on top of probably having a great deal of aliasing due to data rates over the diagnostic connector, shows amplitude but that is a very small part of the calculation. The engine is baselined on dyno with some very expensive equipment and deviations to this baseline (mostly a frequency component) are evaluated for the presence of knock. Without a PhD in signal analysis (and significantly better equipment) you're unable to interpret the data you've gathered for knock. Most of the other parameters available on aftermarket dataloggers are pretty straightforward and usually accurate.

[eford1616]

Another quick question....

Do you have an approximate "life expectancy" on the stock Bilstein shock package on the 2005 Ram SRT-10? At about what point in time or mileage should I look at replacing them?

[SRTengineers]

Originally Posted by wrench18201

how does the variable cam timing work on the srt 4 caliber thanks jaz

Think of it as simply as minimal overlap at light throttles for good idle quality , good emissions, good fuel economy and best torque. When you put your foot down, we go to maximum designed overlap for max horsepower power.

We do a similar trick on the 2008 Viper.

Many people have a different way of approaching variable cam timing for the little sins that they have.

[ResumeSpeed]

I recently had the pleasure of attending one of the SRT Track Experience programs for the first time and wanted to pass along my "experience". On a scale of 1-10, it's off the charts! In my many decades of driving I cannot remember having had this much fun in a single day. Getting to drive all of the SRT vehicles in such a spirited manner left me speechless for most of the day (and ever since then too!). The amount of meticulous engineering and effort that went into the design of these vehicles really stands out, especially when they are taken to their limits, limits that I was not even fully aware of until after the event.

I also want to compliment the staff at this very professionally organized event. Every single employee was friendly, knowledgeable, full of enthusiasm and excitement, and all had a great sense of humor. They enjoyed what they were doing as much as the attending SRT owners did. I especially admired their patience with some of the owners with limited track experience, no intimidation whatsoever and a genuine willingness to teach the "tricks of the trade".

Last but not least, even the breakfast and lunch was great! And at every event station there was a cooler filled with pop and water as well as plenty of munchies. The DVD video was also a great added touch, being able to have a recording of our own lap drives will make a nice momento.

Thank you Team SRT for bringing such an "experience" to the owners. You brought unmeasurable joy to each and every single attendee and I really look forward to being able to attend another one of these exciting events in the future.

[SRTengineers]

Originally Posted by shodanusmc

Any word on the 6.4 as an SRT option/upgrade? or a Blower or Turbo option? Also, anything on some MOPAR software to up the ponies while still keeping a warranty?

Sorry, we can not discuss future product.

[chargerman1]

Thanks for the answer!

[SRTengineers]

Originally Posted by '08 Caliber R/T

I think this has been asked before in a previous chat, but cannot remember. Was there a particular reason as to why the Caliber SRT-4 didn't have an automatic w/autostick option?

We don't have an auto trans that fits that can take the torque. Would you want a reduced output SRT4 auto ala the HHR SS? Didn't think so. If we did an auto SRT4, we'd want it to be a monster at the strip.