Skip to main content
HOME   |   ABOUT   |   NEWS   |   TECH ARTICLES   |   AT THE TRACK   |   REVIEWS   |   VIDEOS   |   CONTACT ME

SRT Viper ACR is coming!

Image
By



Unsurprisingly, a more track focused Viper ACR has been confirmed for production (Viper GTS-R shown). SRT CEO Ralph Gilles has previously hinted at a Viper ACR but a high-level at Chrysler has confirmed to Motor Trend that a faster snake is already under development. Apparently, the reason for the delay is not budget or technical difficulties facing the SRT team. Rather, it's a problem with the tires.

The SRT team would like some of the sticky goodness wrapping the Corvette ZR1's wheels - the Michelin Pilot Sport Cup tires. However, Michelin wouldn't sell the tires to SRT. The Corvette team may have had something to do with it but that would be difficult to confirm. Either way, they are now pressing their supplier, Pirelli, to develop something comparable to the Pilot Sport Cup tires to be used on the Viper ACR. The development for the car and tires are expected to be done for the 2014 calendar year.

Along with upgraded tires, the ACR should receive a bunch of performance boosting upgrades. Judging by the previous ACR, the treatment should include stiffer springs and anti-roll bars, upgraded shocks, better brakes, aerodynamic upgrades to increase downforce and a drop in weight. A more hardcore version or package may also strip the interior or at least a few convenience features like A/C or speakers/radio for more weight savings. It is unknown whether or not there will be a power increase.

There has been a power increase in the past for the ACR version but the previous ACR did not receive a power bump. The current power output of the 8.4 litre V10 was kept at 640 hp to keep the weight to power ratio of the Viper at 5.2 lb/hp (power to weight ratio of 424 hp/ton), the same as the Ferrari F12 Berlinetta. Any higher and the Viper would have had a better power to weight ratio than the Ferrari and  Fiat wouldn't have been too happy about that. More power out of the monstrous V10 can be had relatively easy, though, and could even exceed the 731 hp rating of the F12 Berlinetta. I wouldn't be surprised if they at least give it a different tune that improves mid range torque and response but no increase in top end power a la the Mustang Boss 302's TracKey, except it would be a permanent tune dedicated to the ACR.

If the new Viper ACR follows in the foot steps of the previous one and does include weight saving upgrades, then it should have a better power to weight ratio than the F12 Berlinetta and that's with no increase in power. Do you think the SRT team will be able to convince Fiat to take the 8.4 litre V10 closer to its full potential? A 700 hp Viper ACR wouldn't be so bad..

Source: Motor Trend


Labels:

Comments

Post a Comment






Does An Aftermarket Grille Really Increase Airflow?
I put a Saleen S281 grille to the test to answer that question.

Stock Suspension S197 Mustang With Square 305/30/19's
What you need to fit a proper size square tire setup.

How Limited Slip Diffs Make You Faster on Track
What you need to know about how they put power down and pros and cons.

Can Telemetry Explain Schumacher's Talent?
A comparison between Schumacher's and then team mate Herbert's data.





Cayman GT4 Track Review
The first Cayman with proper (911-challenging) power.

Is an EcoBoost Mustang any good on Track?
Two days at the track in a Mustang short 4 cylinders.

2016 BMW M4 DCT Track Review
It's quick (properly quick). But is it fun?

Can a stock Golf Diesel handle a Track Day?
Not your every day track beater.



🔥 Most Visited This Week

Michelin Pilot Super Sports vs Firestone Firehawk Indy 500 - Street Review

By
I've been a huge fan of Michelin PSS tires and exclusively bought them for the Mustang over the last four years. So how did I end up here? This year, I was hugely interested in trying an "R-comp" tire. I had my eyes set on Bridgestone Potenza RE-71R's for two simple reasons: price and reputation. Although not a true "R-comp" tire on paper, it performs like one by the account of every single test and review I've read (down to wear rates...). They seem like they're easily the most affordable (from a big brand) R-comp tire and combine that with a reputation for having tons of grip, it was an easy top contender. I had my concerns, though. For one, I'm told and have read that they are an autox tire, not really designed for high speed, pressure, and temps associated with open track. For another, the Mustang is a heavy car (as far as track cars are concerned) being roughly 3,800 lb. (including driver), which will amplify the unwanted open track load...
6 comments
Read more

2004 Audi TT 3.2 Quattro DSG Track Review

By
Before getting into this, I have to confess something... I had never driven an Audi TT before. Not until this one, anyway. But that hasn't stopped me from forming an opinion about it from the comforts of my own couch while reading and watching reviews online. After all, if you've never done that, do you even know what the point of the internet is? Now, we all interpret reviews differently. Call it confirmation bias if you will, but if you like a car, you'll read a review and look at the positives as what makes the car great and the negatives are but a few quibbles you have to live with. If you don't like a car, the positives are a few things the manufacturer got right while screwing up everything else. It's a bit harsh to put the TT in the latter category, but that's where it ended up for me... I never took the TT seriously. The problem with the TT for me isn't that it's a Golf underneath, per se. There is nothing wrong with a performance car sharing a...
2 comments
Read more

2018 Camaro SS 1LE vs 2018 Mustang GT Perf. Pack - A Closer Look

By
Get your pitchforks sharpened and your torches lit up. There is a new Camaro vs Mustang comparison test and one of them walks the other. This time, it is the most recent comparison test between a 2018 Camaro SS 1LE and a 2018 Mustang GT posted by Motor Trend a few weeks ago. The results are the stuff of classic and long lasting brand rivalry so let's dive straight in. There is so much I want to talk about that it was difficult to pick where to start. Power seems to be the simplest and it's the one most are interested in so I'll start with that.       2018 Camaro SS 1LE       2018 Mustang GT Perf. Pack 0-30 mph 1.8 s 1.9 s 0-40 mph 2.5 s 2.6 s 0-50 mph 3.2 s 3.5 s 0-60 mph 4.1 s 4.4 s 0-70 mph 5.1 s 5.4 s 0-80 mph 6.5 s 6.7 s 0-90 mph 7.9 s 8.1 s 0-100 mph 9.4 s 9.7 s P...
Post a Comment
Read more

1,000 hp Twin-Turbo Dodge Viper TA

By
Over 1,000 hp V10 engine, in a RWD car with a six speed manual. This car also happens to be a Viper, one of the most charismatic cars on the road. This is the work of RSI Racing Solutions through their RSI Twin Turbo Race Systems kit. Starting from $89,950 on top of the price of a Viper, the kit brings Precision 72 mm turbos (76 mm are optional) with custom associated plumbing, cooling, intake and exhaust. The kit also brings built forged block and internals with a 528 c.i. (8.7 litre) stroker kit. The heads and valvetrain, fuel system and clutch are also upgraded to handle the newfound horsepower. The transmission, clutch, differential and axles can also be built to handle the added grunt. If that's more than you'd like, you can forego the built block and heads and go with smaller, 62 mm turbos along with their plumbing and cooling and upgraded fuelling which starts at $44,950. This kit, called RSI Twin Turbo Systems is good for over 850 hp at the wheels. Awesome. Ch...
Post a Comment
Read more