s2kcolin

Ok so I just put my 2003 S2k on the dyno and had them run it up to 8700rpm. My first run was 187whp and 132 torque, 2nd run 190whp and 135 torque.
I was bang on what I though it was going to be for torque and around the same area for HP.
All it's got is AEM intake, HKS exhaust, AC delete. Do these numbers seem to be pretty acurate??

My link

erikvanden

those seem a little low to me. I would expect you to make around 200 to 210 with your mods. what dyno where you using? I believe the mustang dyno and dynojet (maybe?) read lower and in that case you should be right on for power.

steven975

If it's a Mustang that's pretty good.

On a Mustang I get 191HP/126TQ bone stock

Dynojets and Dynapacks are usually 200+.

Also, what gear?

s2kcolin

It was 4th gear, and my AFR was 12.45 which was on the high side they said. I will find out what dyno they used tomorrow morning.

EDIT: It is a Dyno jet they use.

steven975

That is a little low for a dynojet, but don't let that discourage you. It's not low enough to make me think there's any kind of problem, though. Your mods probably don't add anything outside of the normal margin of error...like 5HP.

and 12.45 seems like a low AFR...like a "high" amount of lean-ness (which the 2002-03 do run). 14.7:1 is a stoichiometric ratio. I'm sure others here can give more insight as to whether 12.45 is "high" or not better than I can.

There are literally many different inputs to get the HP rating on a dyno, and the car's actual power is just one of them. If not set up or adjusted correctly, dyno numbers can be all over the place. Temperature and altitude play a big part in the output. The dyno numbers themselves tend to make people want to make comparisons, but you really can't unless it is the same dyno, same day, same operator. You should really look at it as a way to benchmark your car against itself and see what your mods yield. You really can't say that one car making 200HP in one city is any better than another making 190HP...it's apples and oranges (well, apple-shaped oranges I guess).

If I had to say an average on dynojets going by what I've read, AP1s are a hair under 200HP, and AP2s around 205HP. Mustangs are a good bit lower (I've even seen 175HP quoted as good)...they are called heart-breakers for a reason.

It's also possible your injectors are dirty or your valves are out of spec? How long since you've adjusted them?

s2kcolin

I had the valves adjusted at Honda last yr same time. But I have 75000miles on it or 127000khms on it, so it's not in new specs by anymeans and is 8 yrs old. I figured it was somewhere around what I got. Since thats 227hp at the crank thats an 18hp loss over 8 yrs.

TRD_Celica

I also dynoed on a Dynojet, my highest was 205hp, mods= Comptech exhaust, aem intake, wrapped stock headers, bad secondary o2 sensor. 120,000 on the engine

s2kcolin

Damnit my car sux!

Saki GT

Dynos are meaningless unless you are doing an initial pull then putting the parts on and retesting. It might as well say 500 as 200 - the purpose is to see what differences there are and if you are adding or losing power with them. Simple pulls are meaningless - too many variables.

You should read this - http://www.caranddriver.com/features...ng_-tech_stuff

Fearnight

Too bad you didn't dyno it stock to get a baseline. I have read of many cases with people losing power after putting on exhaust, so I'm scared to change out the stock setup.