testknight

Well two weeks after buying my C32 (59k miles) I took the 9 hour round trip to Eurocharged and back to have a 185mm pulley, intercooler pump and heat exchanger installed and then custom tuned. As they were tearing things down they noted I had a bad water pump so had to drop another cost of pump and 7 hrs of labor for that...its good its taken car of, but man that one hurt.

Anyway I was running stock intake with some used K&Ns they had in the shop (mine stockers didn't look so good.)

Unfortunately once I got there I found out they couldn't do a custom tune (I was pretty dispapointed by that), but they did try a number of saved tunes they had on file. Unfortuantely I was leaning out on top (bit erratic) and they did not have capability to tweak that for me....I am sure my numbers would be a bit better if they were able to.

Needless to say, I'm not real familiar with dyno dynamic numbers as I know they do report lower than dynojet (which is what I've always gone to). Reading here last night once I got home my numbers may be low...curious what you all think. Peak was 291.7 tourque is 330ish.

You guys think adding the SL55 Y splitter or perhaps full intake setup will help me much here? What do you all think this would read on a dynojet??? (I ask becasue thats a frame of reference I'm accustom too)

testknight

Oh...nice group of guys, pretty cool dudes. They seem to really enjoy what they do.


I know dynos don't tell the tell...unfortuantely its been nonstop heavy rain all the way home and this morning so no real butt dyno results....part throttle feels good, feels lights and 'sprintier' will share more on that once it dries up around here.

CLKCLK

My car ran about the same number 293whp/305wtrq. Your torque is so high compare to your hp though? However I ran it on different dyno dynomite or something and on a hot day like 100F, on heavy wheels (5 pounds heavier on each wheel). I had 185mm, code3 intake, modified intake manifold, custom tune. Yes, my number is low compare to someone's here and my car hiccups WOT. I need a retune for the hiccup and my new headers .

AMS Performance

291/330 @ wheels = 373HP / 423 @ crank (22%)

Those are some strong torque numbers. You could definitely free up some airflow and narrow the gap between HP & TQ.

ali saklaoui

You gain only 23 bhp with the 185mm pully +tune!!!!!!!!!!!

AirFrcd

Those #s seem very low to me.
I am confident that LET can provide you with much higher #s once the intake and "re-tune" are addressed.

FWIW - I am making 370 rwhp/rwtq with headers, TB, 185, HE, intake, VRP tune, and exhaust goodies.

TemjinX2

yeah i agree those numbers seem low. Usually a dyno dynamics dyno's about 10-15% lower then a dyno jet. Even if you add the 10%, your dynoing about the same as a code3 pulley. Maybe redyno on a dynojet...so we can have a apples to apples comparison.

loungn14

Our dyno always reads low....

I pulled up other results from the same mods and have a 2% difference in numbers.

c32AMG-DTM

^^^That's important info to know.

testknight - did you do a baseline dyno, either at EC or anywhere else?

The "after" results are only one of two important data points... dynos are useful for measuring the delta of mods, but not much else - especially DD's from what I've seen... they're quite unpredictable from one to the next.

aho

Didn't Josh, (jturkel) make 350whp on a dyno dynamics with the same exact mods? That seems awefully dissapointing.

AMS Performance

The car may need to be retuned, the ECU may be pulling timing aggressively (if the tune is too aggressive), if so you can easily be down a good 30HP on power.

jturkel

i made 350whp and 359wtq on 91 octane with a 185, SL55 intake (testnight doesnt have the SL55 intake), Heat Exchanger, plugs/wires, res delete, and tune. Though I also have a relatively new supercharger (probably 10-15K miles on it) and its hard to compare even between the same brand of dynos.

numbers appear to be a little low but i think he needs an intake. Chris (testknight) how come LET couldnt give you a custom tune?

splinter

Spot on intel from c32AMG-DTM.

Dynamometer data is relevant for comparing before & after differences – and only then when achieved on the same dyno.
Fueling strength obtained from Horiba (or comparable quality) equipment is regarded by many as consistently accurate though.

Trap speed or lap times ultimately separates the wheat from the chaff.
Nevertheless, it must pull harder with its new 185. :y

SilverBulletAMG

I would say the numbers are low, but with this post above by Jake, that should put your mind at ease. If the same dyno is used by the same tuner and you get a 2% difference, I'd say that's pretty good for not having a custom tune.
The real story would be what the first dyno run was when it was stock. There was a baseline dyno prior to tinkering, right? That's what I'd be curious to see....

Edit: Now that I've read all the posts, basically I mean "ditto" to what c32AMG-DTM said.

testknight

Yeah, I'll get some type of intake...geezz I sure wish we had more intake options here...and Jerry has offered to take care if me at a future event. Hell, I like going to the drag strip a few times a year anyway...so I'll likely hit their next US41 meet early next season and get this dialed in with his help.