Viper ACR vs T/A vs GTS Dyno! Bolt-ons for the ACR GTS. T/A is stock.

[TheStig]

https://youtu.be/5knuqCn6d2w

[TheStig]

GTS
https://youtu.be/z61Hz8gE5Eg

- - - Updated - - -

T/A
https://youtu.be/ko3hWuAYF68

[Steve M]

Mod list and numbers for each? I couldn't tell from the videos what exactly each made.

[TheStig]

Acr is headers exhaust and arrow tuned
553rwhp
T/A is 100% Stock 520rwhp
GTS headers and full exhaust and hptuned. 582rwhp

[ViperPete]

Nice. Makes me glad mine made 600whp with a conservative tune.

[TheStig]

It was a mustang dyno aka the heartbreaker! These cars are just so beautiful each in their own way. I wanted to get different angles to showcase that fact

[Steve M]

Who did the tuning on the GTS?

[MinGrey02Stg2]

Who did the tuning on the GTS?

Torrie at Unleashed.

[MinGrey02Stg2]

Mod list and numbers for each? I couldn't tell from the videos what exactly each made.

The TA is bone stock.

The ACR has smooth tubes, drop in K&N, ARH 1 7/8" headers, no cats, custom exhaust with small magnaflow mufflers, ipsco underdrive pulley, Arrow PCM, and copper plugs.

The GTS has ARH 1 3/4" headers, no cats, Corsa exhaust, ipsco underdrive pulley, HP tuners tuned, and NGK iridium plugs.

[Terminator02]

Seems right on. Didnt the Arrow pcm alone not really make much if any hp? The ARH responded with about 30+rwhp over stock with the tune which seems comparable to that TA of 520. Great cars there.

[serpent]

The TA is bone stock.

The ACR has smooth tubes, drop in K&N, ARH 1 7/8" headers, no cats, custom exhaust with small magnaflow mufflers, ipsco underdrive pulley, Arrow PCM, and copper plugs.

The GTS has ARH 1 3/4" headers, no cats, Corsa exhaust, ipsco underdrive pulley, HP tuners tuned, and NGK iridium plugs.
How is the ACR with more mods putting down 29rwhp less?

[Steve M]

How is the ACR with more mods putting down 29rwhp less?

The tune.

[Voice of Reason]

Torrie’s tune is likely slightly more aggressive on timing and a LOT more lenient on IATs. There’s an easy 29 hp in these two things.

[Bruce H.]

Didnt the Arrow pcm alone not really make much if any hp? The ARH responded with about 30+rwhp over stock with the tune which seems comparable to that TA of 520.

Arrow always adds power regardless of any other mods due to more advanced timing map, and a slightly leaner air/fuel ratio also I believe. Tough to always see on a dyno due to other factors but Ralph claimed they saw around 20 whp from it alone. The advanced timing is also the reason Arrow is spec'd for 93 octane minimum, and why Dick and Ralph both told me not to run it on 91 if I got one.

Ralph claimed the ARH added about another 20 whp on top of that on his GTS (Storm), and cat-back exhaust another 20 ish.

[MinGrey02Stg2]

The torque curve and power delivery were much flatter and smoother on the GTS as well.

[Sub Driver]

I know A/C Performance has made over 700whp using their cam, shaved heads, and HP tuners but it would be interesting to see how much power is on the table using the Arrow cam and HP tuners instead of the Arrow ECU. The Arrow package is around 650whp currently.

[Scott_in_fl]

I need a 750-800whp NA package. Seems impossible to do safely and that some type of forced induction is necessary.

[Voice of Reason]

I need a 750-800whp NA package. Seems impossible to do safely and that some type of forced induction is necessary.

It takes a 9.0L with all supporting mods to get to those numbers.

[Jprince]

I need a 750-800whp NA package. Seems impossible to do safely and that some type of forced induction is necessary.

My car made 742rwhp SAE on a VERY conservative dyno.

[Nth Moto]

Just to drop this into the discussion; when trying to draw comparisons on topics like this keep in mind that two bone stock Gen V Viper's can vary more than 20 WHP from each other on the same day, dyno, etc.

This is not directed at anything in particular in here, but should be noted by all.


I need a 750-800whp NA package. Seems impossible to do safely and that some type of forced induction is necessary.

What are you waiting for? It only takes money and acceptance of certain of compromises. Most owners aren't willing to make said compromises to get to that level while staying naturally aspirated, but it's absolutely possible to do safely.

[serpent]

It takes a 9.0L with all supporting mods to get to those numbers.
30k for a 9L with Heads and Cam
or
30k on a turbo viper

Tough choice, if I was a baller I would love to do the 9L H&C on an ACR and Turbo a TA.

[stradman]

I need a 750-800whp NA package.

You need 750-800 rwhp?? Really? Does anyone actually need this horsepower?? :smilielol:

[TheStig]

Yes

[outnumbered]

My car made 742rwhp SAE on a VERY conservative dyno.

You have an incredible build! However, I believe you are on E85 to achieve those numbers, and unfortunately that gas isn't available to everyone.

[IHOP]

How much does the HP Tuners raise the redline to vs. Arrow?

[Steve M]

How much does the HP Tuners raise the redline to vs. Arrow?

You can set it to whatever you want.

[v10tt]

Eventhough it was a Load Mustang Dyno, those numbers are very similar to my bolt on + Arrow and bolt ons HP tuned by torrie on back to back Dynojet pulls.

https://driveviper.com/forums/threads/14166-Full-Bolt-on-Viper-with-Arrow-tune-bs-Torrie-McPhail-s-HP-tuners