Found Missing HP- I hope!

[BLKSNAKE]

Todays projects included modifying my shifter and changing out my spark plugs (at 1700 miles).

Since I bought my Viper it has had a rough idle- Until I dynoed it last Thursday I assumed that the idle was normal for a 505 cubic inch motor- as I have previously posted I was upset with my relatively low dyno numbers. After looking through many posts on this forum I decided to change the plugs- as I have driven wide open almost every time I have had the car out I did not believe that the problem was the Computer "not learning".

After the plug change I immediately notice a smoother idle- although the plugs looked fine when I took them out their gapping was all over the map.

First impressions is that my Viper pulls harder. I will be dynoing again next week on the same dyno to see the difference.

Thanks for all the helpful advice

Rich



Thanks for all the helpful advice

Rich

 

[LittleFish]

How hard is it to get the plugs out, I haven't even look that close...assuming it would be difficult to get to them.

Thanks.

 

[BLKSNAKE]

The Viper's plugs are easy to get at (compared to the vette-even with headers)

I used a swivel headed plug socket and a regular extension

The plugs closest to the fire wall were only nmarginally harder to remove.

The wires needed a little force to brake their hold.

Rich

 

[Viper X]

What plugs did you use?

 

[BLKSNAKE]

What plugs did you use?

The stock plugs are champions, I put in Autolite platinum's AP985- nothing fancy but my local parts store only had 10 of the autolites- I would have preferred the NGK's but they only had 8.

Rich