12-29-2002, 08:41 PM#1SergntMac's AvatarSergntMac SergntMac is offline
Shelby GT X2--Back In Black
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Nov 2002
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Dyno Results in Chicagoland
Waited two week with an appointment, but I finally went for my dyno test today, and went to the only place I could find in the Chicagoland area. There are more dynos around, yes. But, only two I could find, and both are really "out there" too, in location, availability, pricing and cooperation.
This place has a new 'Mustang" 4X4 dyno, and one really helpful tech running it. Can do a lot more stuff than I expected and when the software offered me a hundred choices for my tests, I didn't explore all of them and ordered the defaults. So, some of my tests will need to be done again in the spring, but work for me until then. I'll try to get these reports scanned and posted in the photo library in the next few days.
Where?
DynaTech, Inc.
7511 W. Cermak Road (inside mall, formerly Firestone)
North Riverside, Illinois
708.442.8951
appointment necessary
125.00 per hour
open SEVEN days a week.
www.DynaTechAuto.com
Stats:
125.00 bought five honest pulls in one hour. Worth it in my book, and actually gave me more Sunday afternoon entertainment per hour than my last Bears game, and at half the price.
RWHP peaked at 319.9, 325.9 and 363.5. Wait now, I said "peaked".
My car on this dyno with the pro driving, revealed "peaks" in RWHP and TQ at the shift points. Good, solid shifts that chirped the tires on the dyno, and produced instantaneous spurts of power, why I don't know. The reports I ordered show these peaks in the graphs and in report totals, but they don't mean squat in my book. By looking at the graphs carefully, I estimate my overall net RWHP to center in the area of 240 RWHP.
Torque figures are likewise affected by my report selection, with peaks recorded at 1310.6, 1371.6 and 1336.6 ft-lbs, and in that order. Silly numbers I know, and I estimate my overall net TQ to center in the 420 ft-lbs range.
One pull for a certified 120 mph check for driveline vibrations or anomalies. None observed by the pro, end of story. RWHP and TQ, peaks aside, this MM nested in the 240HP-420TQ neighborhood in that report as well.
One pull for speedo certification, 40 MPH on the speedo is 38.40 mph. Good, nice to be a bit conservative here, and nice to see Reinhart's chip doing it's thing, for sure.
Last pull, 0 to 60 time. Standing start to 60 MPH is 6.03. Works for me.
I'm disappointed that I didn't better understand my choices in the software, there's a hundred ways to run this and I could have learned more had I been better prepared. Nonetheless, this is a good place to start, get me some numbers on how my Reinhart mods have improved stuff. Any of you who are really concerned with performance, get your MM to a dyno.
My prediction is that by spring, I'll be considering intake and exhaust improvements, and I'll probably take Reinhart's advice very strongly. The pipes under this car did not appear as large as I expected them to be, looked maybe half the size of what we see at the tip. Has to be improvement here, cats back. Likewise, the cold air supply needs to be looked at too, also front to back. More air in and more air out, should be worth the expense in RW gains. Pulleys for sure, maybe next in the mod line-up price-wise.
Oh, one more thing...My driveshaft is brushed sliver something, with polished ends, and color codes that match attached flanges. The "pro" acted as though that's the way it's supposed to be, matched balanced parts from the factory. No idea what it's made of, but magnets would not stick. Part number is 3W3Z-4602-AA, Marauder specific, not a GM shaft, or, so it says in the LM parts book.
Well, gotta start loading these images, so y'all can get busy telling me where I'm wrong.
Happy New Year, everyone, be safe.
