ACR Diffuser on a Non ACR Car

[ViperPete]

Looks great!
Should move this thread to the How To section though. Will make it easier to find in the future.

[parabs]

Awesome thread and result!!

[Bryan Savage]

Just a quick update... ran two track days at Watkins Glen with Hooked on Driving. Despite rubbing the diffuser on the street, never rubbed it once on this track in Race or Street mode. No issues whatsoever. The car handled awesome up to 143 mph (fastest I went). Never ran short of front end grip that I could notice.

This was my first time with my Viper at this track though, so I have no metric to compare against stock.

[poptarts]

Awesome looks great have any more pics? Are you going to do the wing also

[Arizona Vipers]

Great post! Thanks for taking the time to do this for everyone. I have an ACR diffuser installed on my '13 as well. For those that care, it adds about 20 lbs. The carbon fiber pieces are light, the strake extensions are heavy.

[Bryan Savage]

Awesome looks great have any more pics? Are you going to do the wing also

Nah. I don't much care for the wing. I just think the diffuser looks amazeballs. If I had any trouble, I'd consider the front splitter from an ACR (without the extension) to make an attempt to balance things, but that's it. Heading to Pocono Raceway with Hooked on Driving on May 21st to try again. That's a higher-speed track from what I remember, so this will be the "final" test of the diffuser. I will not even attempt to exceed Pocono speeds on the street, so if the diffuser causes problems at 170mph, I'll never find out.

[bluesrt]

You could bolt on ta 2.0 bottom rub strip on the 1.0 front areo

[Eachey51]

You could bolt on ta 2.0 bottom rub strip on the 1.0 front areo

I keep hinting at this as well haha

[Bryan Savage]

Next update...

When I installed the aluminum driveline tunnel plate, I reused the factory bolts and German-torqued them by hand. Somehow I misplaced two of the bolts during my install. I tore the garage apart searching for them and they never did turn up, so I'd been running the setup with two missing. Replacing them was on my "I'll get to it" list.

When I went under the car to install an exhaust system recently, THREE of the remaining bolts where gone, and the leading two were backed a quarter of the way out. That would explain why I started hearing a rattle noise at highway speeds.

A stop at Lowe's for some new bolts (M8 x 1.25, I think, in the automotive section of the fastener cabinets) and I applied some Permatex Blue thread sealant this time, as I had not used any before. My bad.

Learning is fun!

[speedtactics]

This looks great!

[Bryan Savage]

2018-08-04 Straitup Savage Half.jpg

Update with 20,000 miles on the diffuser. The extensions are always on. I've come off bumps at speed and hit the blades on the ground hard enough to make my teeth rattle. No damage. I've straddled roadkill in front only to slice & dice it with the diffuser. No damage. (just some fur). I scrape it on the ground entering and exiting my driveway every single time. No damage. (just wear on the bottom of the blades).

The car has been to LVMS, Watkins Glen, Pocono, Toronto Motorsports Park, and New York Safety Track since the install and I've never once touched it to the ground on track. No lightness in the front end and no handling or steering problems.

Just remember to take it off before you hit a dyno. It gets in the way.

[mikesax]

Still SWEET every time I see it Bryan!

[Murpowa]

TA looks great Bryan

[Racingswh]

Wow!! I love the way that car looks!! Colors, wheels, diffuser, just fantastic!!

[SirHiss]

Brb picking my jaw up off the floor. That looks so damn good...

[SA Heat]

That does look really good.

[USAFPILOT]

Looks cool as hell, don't think I could make use of it though, and I know I would damage it driving around town. Still, it looks great, enjoy!

[sharmut]

2018-08-04 Straitup Savage Half.jpg

Love the setup, what happened with the bronze wheels?

[Bryan Savage]

Love the setup, what happened with the bronze wheels?

Those are my track/street wheels now. The carbon wheels are just street/show.

[V10powerr]

one of the best looking vipers imo. can anyone recommend someone that can put the diffuser on my gts in houston.

[USAFPILOT]

The fact that it holds up after ground contact is awesome

[Snakebit10]

Still one of the best looking street Vipers to date.

Buuuut...You just can't post only 1 pic of this beast.

[Fourtrax250r]

Amazing TA

[1of1TA1.0]

Viper Exchange is a great place to start in Houston!

[Bruce H.]

Looks great Bryan, in pictures and in person! Glad to see you enjoying driving it so much!
I'll have you a race to 60,000 miles..whoever wins will have had the most fun!

Bruce