Ok, I'll put it out there. Probably no one knows the ACR better then I do. There I said it. I also owned one from new to 60k miles before I sold it. I did almost every mod imaginable, and I have been in every since part of it, from suspension to engine, to differential to eletctical and beyond.
I too ORIGINALLY bought my Viper ACR thinking it had all those additiona parts. And was even told so by the Dealership (Like an ACR only header).. etc.
Reality is there was NO special ACR Oil Pan. Chances are they made that 2000 one and decided it was best to be used on all the cars, not just the ACR, so every car since 2000 got it, and ones before it did not. It is NOT an ACR pan. If yours is baffled any more then any oem one, its because someone addeda baffle kit.
Next, if your radio turns off at WOT or any other time without YOU turning it off through normal means, then you have an issue. No radio turn off at wot is supposed to occur on the ANY vipers.. including ACRs. (unless you have no radio, then its always off at wot ;-)
Next, the A/C system.. is POORLY designed. It most certainly does NOT turn off the clutch at wot. Wanna contest that? I'll put money where my mouth is. If you have a oem, fully functioning system, go take it to a dyno. Do a dyno run with the a/C OFF and then do it with the A/C ON and when you see the numbers, you will see the A/C one is DOWN on power. What everyone seems to be confused about is that our vent system in the A/C system is VACUUM controlled, so when you go WOT, guess how much vacuum you have? NOT MUCH.. so the vents go to normal Air position (or closed) and NO AC comes through, as soon as you let off the throttle, vacuum returns and the vent baffles go right to where they should so you can get A/C. Ever notice how the A/C is ice cold as soon as you let off???? Do you really think the A/C compressor got up to speed that quickly? Certainly it did not, its been runnign the whole time, your just finally getting the air that passed over it into the car once the vacumm returned.
Final proof.. There is a simple fix for this issue, you put a 1 way vacuum valve in line. Then when you go WOT, the A/C venting system STILL has a vacuum in it, and you still get ICE cold air, even when going wot !! That fix is well publicized on this forum.
All Vipers do fuel cut off (I believe its actually at 6200). Thats not an ACR specific thing.
The supposed increase in top speed comes from a couple of things, LIGHTER WEIGHT (ACRs do weigh less, especially since ACRs are the ONLY ones that can come with factory delete of radio, and AC, saving a decent amount of weight), and supposedly 10 more hp from the smooth tubes and K&N Filters. So I bet a fully optioned out ACR is NOT what they tested at 192 mph. It was the completely deleted accessories one. Which means it had more hp, and less weight then a stock Viper.
But most certainly it was marketing at its finest. I doubt even a stripped out ACR did 7 mph more then a regular GTS.
What other ACR questions you guys have ?
Jon
PS. This wasnt direct at Trainer Dave per say. So dont take it like I'm arguing with you. Just take it as me stomping out miss information !!
But I was assuring folks that mine is typically dead on, as I too sifted through some of the BS that was associated with the ACRs and Vipers in general. I'd rather we all know the truth, then to propigate false information.
