Do I need a tune up, or what???

[kcobean]

I've been meaning to ask this for awhile now, just hadn't gotten around to it. When I drive with my windows open, every time I decelerate I get absolutely buried in exhaust fumes that smell like my car is running very rich. It's enough to make my eyes water sometimes, literally. My car has about 2K miles on the current plugs and only about 500 miles on a new set of Ab's wires. I cleaned my K&N filters thoroughly about 100 miles ago. The car seems to idle fine and accelerates smoothly. I am getting some black fuel residue on the back of the car that only seems to come off with detail spray (ie soap doesn't cut it), but I just chalked that up to the Random-tech HF cats.

Does the Viper (mine is an '01) just run that rich by design, or is something up with my car?

 

[mjorgensen Woodhouse]

The Viper will run rich and the Random tech cats are probably not able to keep up or just plain are not working enough anymore. It this a side or rear exit exhaust? If it is rear exit you may ave a leak somewhere and this may be a big part of the richness and burning of your eyes.

 

[dave6666]

I have an '01 GTS and it will kill you with the windows down. So I don't drive with the windows down. Simple fix.

 

[ViperJohn]

Check your plugs to make sure the gap is correct.

The black spots on the bumper is common.

Perhaps getting a re-tuned PCM would help cut down. I can't remember off hand what your A/F Ratios were when the car was dynoed last November, but you are definitely too rich.

 

[kcobean]

Check your plugs to make sure the gap is correct.

The black spots on the bumper is common.

Perhaps getting a re-tuned PCM would help cut down. I can't remember off hand what your A/F Ratios were when the car was dynoed last November, but you are definitely too rich.

Here's the graph from the dyno day:

You must be registered for see images

The plugs were installed by Doug Levin before the car was shipped up from Florida, so I assumed they would be gapped appropriately, but I'll take a look.

Thanks.

 

[mjorgensen Woodhouse]

Are the plugs a colder heat range or just new? If they are colder they may be fouling out. We have seen this on S/C cars that are not driven hard enough and the N/A cars set up for the track that are driven normal too much.

 

[Viper Wizard]

Check your exhausters! I'll call you and tell you how to check them.

 

[kcobean]

Are the plugs a colder heat range or just new? If they are colder they may be fouling out. We have seen this on S/C cars that are not driven hard enough and the N/A cars set up for the track that are driven normal too much.

I have not checked the plug type to see if they are a one-step colder plug, but I will do that as well. Thank you.

 

[kcobean]

Check your exhausters! I'll call you and tell you how to check them.

Exhausters? Do those come with a free bottle of blinker fluid?

....or am I missing something?

 

[Viper Wizard]

Exhausters? Do those come with a free bottle of blinker fluid?

....or am I missing something?

You also get five gallons of prop wash with your exhausters. LOL!

They are in the rear quarters of the GTS's and when they don't seal you get ALOT of exhaust fumes in the car with the windows down! I left you a phone message, call me tomorrow!

 

[kcobean]

You also get five gallons of prop wash with your exhausters. LOL!

They are in the rear quarters of the GTS's and when they don't seal you get ALOT of exhaust fumes in the car with the windows down! I left you a phone message, call me tomorrow!

Oh the trunk vent...thingies. I know what you're talking about now. I'll give you a call tomorrow. I knew about them but had no idea what to look for. Thanks Chuck!

(and can I exchange the prop-wash for rotor-wash at my local dealer? I much prefer it, being an Army guy and all )

 

[Madduc]

How much do the exhausters cost?

 

[dave6666]

How much do the exhausters cost?

Included with the prop wash and blinker fluid. Not available separately.

 

[Venom-US]

Here is a link to the Illustrated upgrades on those vents: http://forums.viperclub.org/showthread.php?t=591434

 

[Viper Wizard]

How much do the exhausters cost?

#4848591 MSRP $23.00 each [4] less 20% VCA, in stock.
914-763-3136

 

[eagles]

hopefully without sounding too stupid I have to ask --------what purpose do these so-called exhausters serve? or is this some sort of sick joke?

eagles

 

[dave6666]

hopefully without sounding too stupid I have to ask --------what purpose do these so-called exhausters serve? or is this some sort of sick joke?

eagles

I think a little more trust would be in order here.

 

[Madduc]

They draw air out of the cabin, and if working correct they seal shut to prevent air from being drawn in from the rear quarter side vents.