First of all, the "stock" SRT-4 was only 99.9% stock. They did have a "drop in" K&N air filter on it, but the numbers can't be off by more than a pony or two. The other dyno run is with an AEM CAI, note the difference. I also saw the chart showing the K&N CAI gave even more of an increase than the AEM, but I don't want to start a "brand war" here.

I think it's safe to say that a Stock '04/'05 SRT-4 puts out 250 HP..........

Dusty

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Mines a freak like that too!!

so in htat dyno sheet it tells us thta just an aem cold air will give you that much wow make me want to dyno mine

Its nice to see that my thought was correct.
When i got my SRT and drove it for a few days i told my GF that i felt the car was pushing about 250 hp as opposed to the 235 they claim.

Hehe I knew this lil beast was Under rated.

Nice.... 15 hp gain from CAI.
I want to see what the Short ram getts if anyone has a dyno sheet on that or something.

obviously, this cant be stock srt, stock srt run about 10-11a/f and even richer at 6k rpms, you are around 13 a/f ratio which is on the edge of a locked up engine.

Vette, the SRI nets about 8hp/4-5lbs

lock up you mean blow up. wow thats a lean motor.

From all that I've seen and read, the SRT-4 is more underrated than that even. The lowest dyno at the wheels for a stock SRT-4 I've seen was the 223 WHP that Sport Compact Car magazine got on the '03 and the most was 246 WHP in an '04 (I forget which exact source that was from, but it's been posted here before). Combine that with their performance numbers and it's more like around 285 horsepower at the flywheel, not the weak 215-230 underrating Dodge gave it. They rate the new Caliber SRT-4 at 300 horsepower and it only weighs in at 200-300 pounds heavier than the previous SRT-4 and has the same performance numbers as the 215 HP '03 (mid 5 sec. 0-60MPH and 14.1 in the 1/4 mile). With only a couple hundred pounds more weight, the 85 more horsepower should more than make up for the weight difference and be faster than all previous SRT-4's, yet it's not. So, either the new Caliber SRT-4 is overrated or my figures of the Neon SRT-4 actually having around 285 flywheel HP is correct.

i think it is the fact that the new calibers rating is at the flywheel so so the exta 20-25hp makes up for the wieght and that is why the caliber has the same 0-60 and 1/4 mile times as our srt-4s.

wonder if the head on the caliber will swap to the srt neon. thats the only part of that car i want.