Viper + Ford GT

ACRucrazy

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What year? The Mopar Performance PCM would help that issue .

It was a noticeable difference when I went from my '08 to '09 on the improvement as the 09+ saw an update in the PCM from the factory. And you are correct, adding a Viper to the stable would be awesome. :2tu:
 
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racer22

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The Viper I drove was an 08. Does the PCM need to be replaced to correct the hesitation when blipping the throttle from idle? If so, can anyone provide the Dodge part #. Thanks
 

ACRucrazy

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A stock replacement wont do anything for the 2008 Vipers.

What you would need is the Mopar Performance upgrade which is a replacement for the stock PCM. Part number P5155254AB They run $1000-1100 on average.

A stock 2009/2010 would have better throttle response than the 2008 similar to the Mopar Performance upgrade. However the Mopar does more than just improve the ETC.

VIPER

IGNITION AND ELECTRONICS

A.Engine Controller

Designed for race only applications, the Stage I Engine Controller has modified
spark and fuel tables which function when "power adders" like headers, cat-back
exhaust, aftermarket cams and cold air intake systems are used. The computer
senses the additional air flow and will compensate with appropriate fuel and
spark to maximize performance.

Features:
* Power adders can be used without turning on dash warning lights. Catalysts
and O2 sensors can be removed without tripping warning lights or causing limp
mode to activate

* Chassis dyno results showed a slight HP gain (approx 10 hp) on a stock ACR
but the intent of this controller is to work with power adders to maximize
performance

* The revised fuel/spark tables are intended for power levels below 700 hp. This
controller is not intended for use with nitrous, superchargers, or packages that go
above 700 hp. It might work depending on your setup, but it wasn't designed to
function in that range

* The 1-4 skip shift feature in the production calibration has been eliminated

* Requires the use of 93 octane fuel only

* The rev limit has been increased from 6400 rpm to 6500 rpm

* Tachometer settings have been adjusted for updates every 25 RPM (vs. every
100 RPM)

* Increases engine idle speed from 700 rpm to 750 rpm

* The ETC pedal / throttle MAP has been refined which improves pedal feel

* Tested using rear axle ratios between 3.07:1 to 4.10:1
1

P5155254AB Engine Control Module, Stage 1, 2008-10 Viper

IMPORTANT NOTICE: This device is not legal for use on pollution-controlled
vehicles certified for use on streets or highways. Once this device is installed,
use of the vehicle on a street or highway is a violation of the Clean Air Act,
potentially subjecting the operator and the installer to civil penalties of up to
$32,500 per vehicle depending on the circumstances.
 

purplesnake

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Buy a Gen 4 and put a 3:55 gear in it. I put one in my Gen 3, loved it and then put one in my Gen 4. IMHO these cars should have had that gear to start with. Don't worry about the 5th gear thing. In another current thread, 345's b- spinnin did an analysis and claims the 08,09 5th works better with a 3:55 conversion anyway.

These cars just deliver the best smiles/$, of any car I have ever driven! Good luck!:)
 

Junkie

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Also really chomping at the bit for a GT, but scared of them falling off. It seems to be the only car in years that has continued to appreciate. I would hope it just caps off and never fall out
 
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racer22

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Will I have issues in California smogging the car if I install the Viper Race Engine Controller? BTW in case you missed my other post I nailed the 08 Coupe today. Thanks for the help.
GT bubble? Heck I don't know anymore than you guys do but unless we have a major global melt down I think the cars have not gone up that much to be a major bubble. I'd be worried if I had a Dino though.
 

ACRucrazy

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I would assume it wont pass in CA, however its not like you can't just put the stock computer back in a few days before smog and swap back to the Mopar computer after.
 

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