Update, dynoed my car again with the intake and tune from Torrie , gained 30 to the wheels!!, I'm pleased with that!
Update, dynoed my car again with the intake and tune from Torrie , gained 30 to the wheels!!, I'm pleased with that!
I dynoed it on a dyno dynamics it reads lower then a dyno jet around 12.5% lower
Strykerviper2014,
Was this gain accomplished by just putting in their upgrade tune? Or did you do a lot of individual parameters. I've only worked with the Diablosport on Roush and Shelby Mustangs. Liked the fact that you stored the factory tune in the tuner and could always work back and forth if needed.
Yup just the up grade tune, Torries custom, I have the stock tune stored in my lap top
If you buy HPTuners through Torrie (Unleashed Tuning), he sets you up with a custom-tuned base file to work from, so you'll have both the stock calibration and Torrie's modified calibration to load as you see fit. You can also make changes yourself and flash them to your car - I've taken Torrie's base tune he set me up with and made a bunch of small changes to better suit my needs. Some people aren't comfortable making changes to the calibration, but you have the option if you so choose. When you buy HPTuners, you are buying a software package and interface that allows you to communicate between your laptop and the car's PCM...both are yours to do with as you please.
Steve
Are you going to National Trailway strip on Fri/Sat?
We are going and no, just limpin along on hpt
Is your'alls opinion of this HP tuner a good option? Did it result in any codes thrown or trips to the dealer?
There were some issues early on, specifically when trying to adjust throttle response with the Pedal Percent Torque Request table. If you adjust it too far, the car goes into limp mode. It is a known issue that they are working to address, but progress has been slow. If you leave the table alone, it isn't an issue.
Is it perfect? No, but IMO it is a pretty good solution. I've run into a few minor issues that I'm working with the HPT staff to resolve, but this is a small market, and the Viper PCM is a one-off computer shared with no other platform in the Chrysler lineup (different base code and all). Compared to the LS1 F-body platform I came from, support for the Viper is very limited, but you can do what you need to do to alter timing, fueling, and pretty much anything else you need to get a Viper running like it should.
It did require a trip to the dealer to do the initial throttle relearn, but some folks have been able to get away without doing this step. Codes can be read/cleared/disabled as you see fit (e.g. if you aren't running cats, you can disable the rear O2 sensor codes).
If you want a plug and play solution, HPTuners might not be right for you. Personally, I value the flexibility to modify the calibration in my car as I see fit, and I don't mind spending time logging data to see what parameters do what. I also have years of experience using HPTuners on my previous car, so for me, it was a good fit. It seems like the majority if Viper owners have little or no desire to tinker with the software, and have chosen the Arrow PCM instead. To each their own...at least we have options.
Steve - Thank you for all the input. I'll need to decide.
I done a stock run first a few weeks ago got 518, done it again with the tune and intake got 546, dyno dynamics reads 12.5% lower ,so if it was a dyno jet , it would of been 585 stock and 615 with the tune and intake.
Just doing what the dyno guys tell me there buddy
Been really undecided between HPtuner and arrow's PCM
I was in the same shoes as you were, with HPtuner we have Faisal Dashti at Xtreme Performance and personally knowing the guy for a couple of years now and which he did my gen 3 viper a long time ago he's a straight up guy. However i went with Arrow, not to diminish HPtuner or Faisal. My only reason is that i went with the Arrow as i have opted to go with Arrow stage 2 heads and cam package and also the testing that had been done for it sold it to me.
At the end of the day both are great products you cant go wrong with either. Sorry OP for the slight derailment in thread.
Thanks
Yousif
To answer your question, HP Tuners is a *VERY* powerful tool and will give you enough control of the factory PCM to do whatever you want *if* you know exactly what you are doing and fully understand every parameter that is available. The trick is finding someone that truly knows HP Tuners and the Gen V platform well enough to do exactly what you want or need to be done.
It's not uncommon to pick up 45 RWHP using just HP Tuners (on a dyno).
It seems to be a no-brainer to me to go with the Venom ECM.
Didnt Jon B dyno HPT vs the Venom and the Venom squeaked it out? Plus the Venom was built and tuned by the guys who build and design the engine... that seals the deal for me. Or it will next year when im ready to swap ECMs
removed the stock box altogether, got the K&N typhoon installed , car runs way cooler
You are talking about the Arrow PCM, not Venom. Venom is the name of the stock Gen 4/5 PCM.
Also, unless we know how aggressive (or not) the HPT file was that was used in any comparison, it could skew the results. An HPT calibration can be anywhere from stock to balls-to-the-wall - the trade space in between the two is pretty large.
That said, there is no magic to tuning a stock or bolt-on modded Gen 4/5 - they all can take similar amounts of timing, and you shoot for the same target AFR. The Arrow PCM gets you pretty close to ideal, so there is little margin for improvement. About the only things you can do with HPTuners over the Arrow PCM is add some additional timing (also relaxing the timing pulled for high IAT/ECT) and mess with the exhaust cam timing (I've not seen any results from the latter though). Oh, and pass plug in emissions.
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