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Tuning & Dyno Testing/Results Questions, experiences & results for electronic tuning and dyno tests |
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03-08-2014, 12:45 PM | #1 |
Registered User
Join Date: Jun 2012
Location: Richmond, TX
Posts: 33
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Problematic Dyno Run...
Hey All, I need some help and advice. Took my car to a local shop in Houston for a dyno pull for the first time and ran into a few problems...
1. As they were testing the setup for the first pull, my rear brakes were engaging. After a low RPM test the rear brakes were smoking big time. What would cause this? The shop eventually worked it out, but I never got a good explanation. 2. After trying a few times, they could not get a good pull. I was told that they needed an additional piece of equipment/connection to get my car to complete a full run. They said something about not being able to get it to lock out. I know I should have asked more questions, but when you are a novice like me it is difficult to know what to ask. Best Result: HP (269.01) T (253.25) - see sig for setup and best track results. Any advise or information you can provide would be greatly appreciated. Pete
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2003 Torch Red MACH
Automatic, JLT CAI, Accel Coils, SCT Tuner, Nitto NT555 (street) and NT05R (race), Black Bullitt Wheels, 4.10 Gears, ½” Intake Spacer, MAC off road H-Pipe, Flowmaster catback...Daily Driver Best Run out of 5 passes…13.3017 @ 104.51mph Worse Run out of the 5 passes…13.5211@102.44 TC: 80 degrees @ 64% humidity @ 8:30ish pm (sea level) on 6/02/12 |
03-08-2014, 07:44 PM | #2 |
Dark Knight
Join Date: Nov 2009
Location: Albuquerque, NM
Posts: 5,759
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Does the car have any rear brake issues on the street?
Rear caliper sticking is my only guess. Sent with a shot of DROID go fast
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Vortech V2 S-trim, E85, A2A Treadstone, Comp cams, built engine, full exhaust, built rear, built 4r70, more mods. Tuned by me with SCT Advantage |
03-08-2014, 08:01 PM | #3 |
saving pennies
Join Date: Apr 2008
Location: Griffin, Ga
Posts: 1,487
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Re: Problematic Dyno Run...
The hp number doesn't seem to far off. Here is an old dyno run from when my car had an o/r x, catback, and jlt rai. Torque does seem a bit off though. If they were having problems getting a dyno pull I would consider taking it to another shop.
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03 Mach 1--Auto, 4000 stall, 96 cobra intake cams, 4.10s, ARH L/T's, off road X, Moser 31 spline axles, Eaton Posi diff., MM FLSFC, Tokico D-Specs, k&n filter, 17x9/10.5s AFS Mac wheels 03 Cobra--18x9/10.5 TSW Nurburgring Wheels, Nitto NT05's 275/295, Stiegemeier ported, 2.87” pulley, Canton 9-qt oil pan, Spec Stage II clutch, MM coilovers, Bilstein Shocks/Struts, LFP heat exchanger, LFP radiator, Evans cooling system, 14" Brembo 4 Piston calipers, 470whp, 460ft-lbs |
03-08-2014, 08:23 PM | #4 |
Registered User
Join Date: Dec 2012
Location: so cal
Posts: 389
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Did they do the first pull with the e brake on and were too embarrassed to admit it?
Sent from my iPhone using Tapatalk
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1st Mach 2nd mustang Mods: K&N drop filter, Full Mac exhaust with Lt headers, 4:10 gears, eibach sport line springs, tubular cross member, steeda short throw |
03-08-2014, 09:20 PM | #5 |
Can't be bridled
Join Date: Sep 2007
Location: Texas
Posts: 7,006
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Re: Problematic Dyno Run...
^ That's my guess. Problems like that don't surface the moment the car hits a dyno. Lol
op- Lesson learned. Don't go back.
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2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
03-08-2014, 09:54 PM | #6 |
finally paid for
Join Date: Nov 2004
Location: Ypsilanti Twp, Mi
Posts: 4,077
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Re: Problematic Dyno Run...
the rear e brake will get "hung up"...if it isnt used consistently. I would imagine either they pulled it up and it hung up OR they pulled it up and DIDNT put it back down...lol.
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2004 mach 1-turbo build in progress.. Fast xfi 2.0 OLD combo- 826rwhp/720 trq -100 shot NX 9.13@154 on 100 shot NEW- in progress... |
03-09-2014, 12:40 AM | #7 |
Registered User
Join Date: Mar 2007
Location: Waaayy out in the country,leave your GPS at home!
Posts: 4,825
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Re: Problematic Dyno Run...
"I know I should have asked more questions, but when you are a novice like me it is difficult to know what to ask"
Don't feel bad, I felt the same way, they are kind of imitadating if you aren't sure of the process, I had more questions when I got HOME than when I was standing right there, if YOU don't feel comfortable, go somewhere else and don't mention you went to the OTHER guy!!
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2003 DSG Mach 1-03 Cobra Term/T56 swap: 2.3L Whipple,3.37 Upper,4 lb.lower, ID 1000 injectors,LCD cooling mod,Billetflow idlers,200A Alt,oil cooler delete with MMR adapter plate,MM oil filter kit,FrozenBoost Heat Exchanger Flowtech L.T., Maganaflow O/R X with Magnapacks, FRRP D.S.,T-56 with 26 spline input shaft and anti venom mod with reverse lockout box, FR steel flywheel,Spec Stage 3+,Moser 31 spline axles,FR 3.73 gear Tuned by B.Kurgan 601Hp/558/Tq |
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