Well to start off I will say anything that I have done or someone else has done to my car has never turned out right the first time!!! The one shop I go to calls my car a black cat because nothing ever goes right!!!

But anyways I got my car dyno on a mustang dyno, the day was kinda hot and it was pretty dry out. I ended up getting 266rwhp (real low I have been told considering my setup)!! That was in September, a week ago I got it tested again at the same place. It was chilly out side about 60 some degrees, and ended up getting about 12hp LESS!!!! WTF!!!! I found out that I don't have the right spark plugs for a FI application, they had 4 grounds and couldn't be gapped, o and they are sucky BOSCH plugs. Could this result in 12hp loss and my low numbers the first time? I don't know what else it could be or what I am doing wrong? Sometimes I even wonder why I bother!!!! Well I will give you my mod list and will take any advice!!!!!

Mods:
JBA shorty headers
JBA true dual exhaust
JBA spark plug wires
70mm Loki Throttle body
Plasma Booster (Multi-spark)
Vortech H/O system 10 psi
BOSCH PLUGS (GAY)
3.73
t-lok

Things that hurt my hp:
20s
auto
stock ds

I think I got everything as far as hp performance goes.

 

I'd look at that plasma booster... if you can remove it without too much trouble, see what it does. Also, try going back to your original plug wires. I think the key is, to start REMOVING some mods (that are easily removable), then dyno, and see if that changes anything. You may have something in the works that is causing trouble.

 

True.

 

the doors?

 

Don't even bring that up!!! I KNOW!!!![8D]

 

Is this a typo, or are you telling us that you got 254 RWHP with a Supercharger + the mods you listed. A run of the mill Stocker puts down an average of 262 RWHP. WTF ??????

 

You're not the only one with mod problems. I'm chair of our support group. We also have a militia that will soon be going after certain aftermarket parts companies.

 

He has a V6

 

In light of the info supplied by DeStonn, all I can say is.....................
Never mind

 

^^LMAO