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  1. S

    SRT Engineering Chat HERE on September 9th!

    ACRsnake asked: 4) Is there a way to change the air filter to a better flowing unit (Mopar ??)? A: The stock air filter has a very high flow rate. There aren't any Mopar filters available. We don't think you'll realize any hp gians from a different filter. 6) 0W-40 oil is not available...
  2. S

    SRT Engineering Chat HERE on September 9th!

    Nader asked: 1) "I have just started doing some research on reaching 580 to 600 rwhp in my 04 Mamba. I want to stay naturally aspirated so I know high flow heads and custom cam with a small bump in compression should get me there. Do you have any recommedations on cam size or compression? Also...
  3. S

    SRT Engineering Chat HERE on September 9th!

    ViperTony asked: "Recently the original water pump failed on my 2001 RT/10 with 16K miles. Thanks to Chuck Tator, I replaced it with an OEM. Was there an issue with water pumps on Vipers whereby the impeller stopped spinning at high RPMs and eventually stopped spinning altogether? If there was...
  4. S

    SRT Engineering Chat HERE on September 9th!

    The entire suspension was retuned for the new tires (springs and dampers). Alignment specs. also changed.
  5. S

    SRT Engineering Chat HERE on September 9th!

    Chelseasnake asked: 1) "hi guys, keep up the good work my question is what is the break down of cars that came to canada for 08 @09 so far? i know of 08 production # in total, but not of us in canada.i know of 4 coupes for sure,2 08 and 2 09 as they are in my garage. thanks CANADA EH" A: Sorry...
  6. S

    SRT Engineering Chat HERE on September 9th!

    This would be a perfect application for the Mopar Controller. It was purpose built around head applications.
  7. S

    SRT Engineering Chat HERE on September 9th!

    Bobpantax asked: "1. Hi. It's great to see that Fiat appreciates the value and importance of the SRT team. We couldn't agree more... 2. I know that you cannot write about future product but can you comment on whether the Ferrari drivetrain engineers and the SRT equivalent are allowed to talk...
  8. S

    SRT Engineering Chat HERE on September 9th!

    Martin asked: Q: 3) "I read in the 2010 Chrysler Information pack that the new Vipers have a different 5th gear ratio. In the info pack, they indicated 2009 Vipers have a 0.80:1 fifth ratio as opposed to the previous 0.74:1 ratio. Is that correct and does it only affect the 2009 cars - or all...
  9. S

    SRT Engineering Chat HERE on September 9th!

    viperbilliam asked: "How different is the exhaust system from Gen III to Gen IV? They appear to be very similar. The only difference I know of is the air gap header. Mufflers, cats, and diameter sizes the same? If so, how do you keep the resonance down without the crossovers?" The exhaust...
  10. S

    SRT Engineering Chat HERE on September 9th!

    The system is doing exactly what it is supposed to do since you have changed your catalysts to a different type of exhaust! The Mopar Controller should elininate this issue for you.
  11. S

    SRT Engineering Chat HERE on September 9th!

    viperbilliam asked: "How different is the exhaust system from Gen III to Gen IV? They appear to be very similar. The only difference I know of is the air gap header. Mufflers, cats, and diameter sizes the same? If so, how do you keep the resonance down without the crossovers?" The systems are...
  12. S

    SRT Engineering Chat HERE on September 9th!

    "VIPER GTSR 91 asked: 1) "Since Dodge dealers service dept. no longer sells Mobil 1 0w40 as your manual suggest or any other Mobil syn. viscosity for that matter, what alternative fill by dealers is just as good? On a recent visit to my dealer they tried to sell me Quacker 5w30 syn. but I had...
  13. S

    SRT Engineering Chat HERE on September 9th!

    Art 138 asked: 2) "The hood intake on my 09 has a rain/water deflector (black plastic piece on inside); it would appear to restrict considerable air flowing into the air box...is there any power gained by removing this plastic piece?" The deflector aids in flow straightening for the MAF...
  14. S

    SRT Engineering Chat HERE on September 9th!

    FastZilla asked: "What are the differences between the "specially developed" "SRT" oil filter and the high quality after market offerings of Mobile 1, K&N, etc. I have read posts that mention: - filter housing thickness - stronger bypass springs - neoprene anti-back flow valve - 3 ounces...
  15. S

    SRT Engineering Chat HERE on September 9th!

    ACRsnake asked: Q: 2) What are the recommended settings for the shocks for an ACR that is street driven , in an area with bad/bumpy streets? A: The factory setting (full soft) is recommended for public streets. To set your shocks to full soft, rotate the compression and rebound knobs in the...
  16. S

    SRT Engineering Chat HERE on September 9th!

    Newport Viper asked (on behalf of a friend): 1) "Will someone please ask how to fix the passenger side window glass from hitting the roof when you close the passenger door? Lots of cars, invcluding mine, seem to have this problem. Dealer cant seem to fix. (What a surprise). This car is an 08-09...
  17. S

    SRT Engineering Chat HERE on September 9th!

    Sweet Ride asked: 2) In addition, what are the HP limitations with the factory Gen II DIS modules? Is there a point where they cannot keep the spark going strong at high HP and/or RPM? The rpm limitations have to do with dwell time to achieve saturation... but they are fine to 8,000rpm or so...
  18. S

    SRT Engineering Chat HERE on September 9th!

    Great questions MY600HP; First, for those who haven't seen an improvement in power when running the Mopar Controller, the biggest improvement the calibration offers is improved drivability and less OBD sensitivity to modifications such as headers, exhaust and so on. The controller also offers...
  19. S

    SRT Engineering Chat HERE on September 9th!

    4) Is there a way to change the air filter to a better flowing unit (Mopar ??)? At this time Mopar does not offer an air filter
  20. S

    SRT Engineering Chat HERE on September 9th!

    OppositeLock asked: "(2) I have noticed deterioration (cracking) on my upper radiator hose at the bend next to the power steering reservoir. There have been several threads indicating that the upper radiator hose can collapse under high load and RPMs. Have you seen this problem during engine...
  21. S

    SRT Engineering Chat HERE on September 9th!

    ACRsnake asked: "1) Can the Mopar ECU be self installed ? Can i buy a tool to install it on my 09 ACR ? It is really only a dealer install item... If you have access to a StarScan or StarMobile system you could accomplish the install. It is very important to follow the directions to the...
  22. S

    SRT Engineering Chat HERE on September 9th!

    Answers to lap time Questions... Newport Viper Q: 2) I got a chance to drive the Nurburgring recently. I am amazed at the track!! Elevation changes, 70+ turns, dips, off camber turns.... truly an amazing road to drive! Nothing comes close. Let's say given another week of 2-4 hour a day...
  23. S

    SRT Engineering Chat HERE on September 9th!

    Martin asked: 1) "can the firmware in the PCM be updated as improvements are made? If so, can it just be shipped to an authorized 'flash' center?" The Early 2008 PCMs do have an update that is available from dealers and authorized service centers... it was a release to address a misfire...
  24. S

    SRT Engineering Chat HERE on September 9th!

    Sweet Ride asked: 1) "Are there any plans to offer more aftermarket parts (crate engines, computers, heads, etc.)for Gen I/II through the MOPAR parts catalog? It would be nice to have some factory backed performance parts available to the Viper community much like they do for the Street Rodders...
  25. S

    SRT Engineering Chat HERE on September 9th!

    To add, I don't believe a 50 state header is really possible with emissions standards these days. The catalysts is moved to far away from the heat source to really be as effective as it needs to be. You may pass an in-use test with a header but you would never pass a certification test.

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