Do my dyno numbers seem a little low
 

dynoed my car the other day. i know it was hot (97 degrees) but i wouldnt think it would affect the number this much. i have an uprev tune from john at z1 motorsports, k and n dual intakes, and a topspeed catback exhaust. it was a dyno dynamics dyno that was reading low for everyone but what do you guys think my numbers should be with just the simple setup that i have

Dyno numbers are always relative to the machine they are done on. No two dynos will be exactly alike. I had the opposite problem and my dyno states I make 342 (NA).

No real way to tell without having your baseline to compare. Any data from similarly modded 370Z's on that dyno?

Dynojets are VERY consistent from shop to shop, and much more consistent that load bearing dynos.

Find a Dynojet.