Dyno Help!
Thread Starter
Burning Brakes
Joined: Jun 2002
Posts: 767
Likes: 1
From: Noble OK
Dyno Help!
Hey guys had car dynoed today and was expecting more(308HP/313TQ) but my graph on the HP is kind of up and down until 5100 and then it dives 15HP and then goes back up is this normal? My mods are at the bottom and no codes are present. I plan on contacting ED Wright Monday to see what he thinks but any help would be appreciatted. Thanks :mad
Pro
Joined: Oct 2001
Posts: 507
Likes: 0
From: Chatsworth CA
Re: Dyno Help! (Xssesive)
You could be getting some detonation (i.e. pinging, pre-ignition). Did they take any wideband O2 readings? It usually appears as a sharp drop in the curve. It's a result of the computer pulling timing after the knock sensors detect pre-ignition. If you had it tuned, definately take it back and show them the graph. They will need to richen the A/F ratio and/or back the timing off a little. Post the graph if you can.
[Modified by bdavies, 5:49 PM 7/6/2002]
[Modified by bdavies, 5:49 PM 7/6/2002]
