Viper on ******

[All Car Guy And Viper NJ]

I installed new DC computer that Jon B at Partsrack got for me based on the equip he got for me. Jon did a great job and answered all my questions and then some even helped out with my original dealer. Anyway my question is; when I installed the 170 thermostat first the temp stayed as usual at 200-205 with air on or off etc. Just like it did with the 185 thermostat. But when I took it on the highway the temp came down to 180 with the 170 thermo . I surmised from this that the high speed gave the radiator more air and cooled the car down. closer to the thermo setting. Now I installed the DC comp... I thought that the fan would work harder earlier to put more air thru rad and bring temp down but it didn't make any difference. Is the hyd fan not able to work like an electric one I kinda wanted to reduce engine temp because I am in a lot of traffic sometimes and would like to see the temp come down to 180. Is the new pcm supposed to do this? Chris is away for week at DC I will call next week just thought i would ask. Also I noticed when I back off the gas the rpms kinda drop slowly and then dump all at once orig computer didn't do that . Anybody have experience with what the new PCM is set up to do. The car is definitely very smooth now with the comp and seems to run better at idle and mid rpms very big improvement I highly reco this new PCM it takes 2 mins to install and really help the loud exhaust sound better. I love when the popping shifts from side to side , sounds derranged.

 

[valentine_viper]

I also have the DC computer with the cooler thermostat and my fan does come on sooner than it used to. Also, I do not experience the rpm issue you mentioned. Mine revs down same as before, only much smoother with less popping. You may have other mods that I don't affecting this. My car is completely stock except for the DC reflash.

 

[Nader]

I noticed my fan coming on more frequently and no RPM issues as you mentioned. the car definitely runs cooler even in traffic. The only time i have seen it go up further than 185 is in traffic during the 100 degree weather we were having.

Call Dan.

 

[All Car Guy And Viper NJ]

The mods that I have are K&N filter Random tech high flow cats and corsa track system no crossover. Car sounds great but better with DC pcm.

 

[Hiss]

I have the same thing with my 2006 SRT 10 Coupe-the DC computer works great ,the viper runs so much smoother and the mid range has really improved ,amoung other positive things. No rpm issues but the temp runs 200-205 in traffic with the 170 thermo. I did get all the air out.

One funny thing-I ran the viper for about 3 days with the DC computer installed and the stock 185 thermo. The viper temp was a little lower.

Only had my viper for a month so my mods are green air filters and the dc computer.