Question about throttle response

[viperdriver5150]

I just received my new Viper last week and I started it in the garage today but I noticed that when you press quickly on the gas pedal, it has a stutter before it revs up. This is from an idle, but if done with a slight amount of gas applied it revs totally normal. Engine temp was 175.

I put a K&N air filter in the car, but I will try putting the factory one back in to see if it has any influence on it.

Any feedback would be appreciated.

[mjorgensen]

Could be still cold or just not liking the filter, I would switch back also, but that is just my opinion, others will disagree.

[Steve M]

When you put the stock filter back in, you might hit the MAF sensors with a little electronics cleaner first to make sure no oil ended up on them.

[viperdriver5150]

Mark,

Do the filters have any real benefit or is it all hype?

Also, do you put them in any of your cars?

[mjorgensen]

Mark,

Do the filters have any real benefit or is it all hype?

Also, do you put them in any of your cars?

They may eek out a few HP on the dyno with the hood open compared to the stock box, but on the road I bet the tables are turned since the airbox is no longer pressurized with incoming air. We do not change the intake system here, I believe Dick Winkles when he tells me not too...

[Steve M]

Just for clarification: are we talking about the K&N filter intake system (filters, tubes, etc.), or just a K&N drop in replacement panel filter that goes in the existing box?

[mjorgensen]

Just for clarification: are we talking about the K&N filter intake system (filters, tubes, etc.), or just a K&N drop in replacement panel filter that goes in the existing box?

I think he is referring to a drop in, but even the drop in K&N does not have the exo support that the stock filter has for when the box is pressurized.

[Vprbite]

They may eek out a few HP on the dyno with the hood open compared to the stock box, but on the road I bet the tables are turned since the airbox is no longer pressurized with incoming air. We do not change the intake system here, I believe Dick Winkles when he tells me not too...

Yeah, but how would dick winkles really know anything about Viper engines? Has he ever even seen one up close?

J/K. I have a Gen V valve cover signed by the king of Viper motors himself. I would think if he says not to do it, you can take that to the bank. The K&N debate has been waged for years. I had one on my 96 ram 5.2 liter 318 and thought it helped. That was a torque-ey little motor. But I have no dyno results to prove it. It seems the if the jury has been out this long on weather the K&N helps at all in a Viper...I think you have your answer right there.

[bayviper]

I though about adding a K&N filter to my T/A but after reading this I save my money.......

[Policy Limits]

I thought about leaving my Viper stock. And then I ran with that thought.

[sparkrn]

This is all sort of funny, the gen 2 ACR cars came from the factory with KN filters.

[viperdriver5150]

Just for clarification: are we talking about the K&N filter intake system (filters, tubes, etc.), or just a K&N drop in replacement panel filter that goes in the existing box?

Just the panel drop in.

[v10enomous]

I just received my new Viper last week and I started it in the garage today but I noticed that when you press quickly on the gas pedal, it has a stutter before it revs up. This is from an idle, but if done with a slight amount of gas applied it revs totally normal. Engine temp was 175.

.

That seems like what my car does too but I wouldn't call it a stutter it's more like a little flat spot in the exhaust note if we're talking about the same thing.

[mjorgensen]

This is all sort of funny, the gen 2 ACR cars came from the factory with KN filters.

The G2 car intakes were not positioned in the air flow path for high speed pressurization like the 3/5 cars is the way it was explained to me.