Question about dyno

[ssmith240]

Alright, I got my car dynoed today and put down 133hp and 143tq. Those numbers seem normal but at 4100rpm there is a jump in the graph of about 20hp and 20tq. It just goes straight up. Is this normal?

[highkck]

What mods? Thanks http://members.cardomain.com/silvia240

[ssmith240]

AEM intake and Apexi N1 dual catback are the only mods that would increase power.

[NateDogg]

Clean all the sensors (TPS, MAFS, CTS) and check them for values consistent with the FSM.

[sxseguy]

Is it an automatic? Torque spikes due to torque multiplication during shifts do that. Here's an example:



More dyno charts can be found here:

http://www.nm240sx.org/phpBB2/viewtopic.php?t=33

[ssmith240]

No, it is a five speed. I will take a picture of my graph tonight and post it.

[corn322]

one of the sensors. some magazine dyno'd their 240, and had a spike like you're describing. turned out to be a bad water temp sensor.