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Discussion Starter · #1 ·
I have 3 things that I'm going to have installed soon, but I'd really like to give you guys some numbers.<p>1) CAI<br>2) DP<br>3) Straight Pipe<p>I'm especially curious to see if Evolve's CAI or straight pipe make a difference at all.<p>But, I'll never know this if I have the dealership do everything. Suggestions?
 

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Re: I could really use a dyno (frankhoffy)

FAME automotive/DynoAuthority in Redmond has an in-ground Mustang eddy-current AWD dyno. And the shop is across the lot from the dyno... they can probably do the installs in stages. You'll probably have to block out a half day on the dyno to do the befores/afters you're interested in.<p><A HREF="http://www.dynoauthority.com/" TARGET="_blank">http://www.dynoauthority.com/</A><p>p.s. There's really no point in trying to assess the benefit of a CAI on a dyno since airflow into/across it is not going to approach real-world airflow.<p>I'd just do the before/after on the DP with straight pipe. The net effect of the straight pipe is going to be negligible, the DP should be where you see something in terms of torque/hp.<BR><BR>
<i>Modified by StaggRLee at 6:09 PM 4-4-2006</i>
 

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Re: I could really use a dyno (frankhoffy)

I know of a good AWD dyno in Vancouver BC if you are interested.
 

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Re: I could really use a dyno (vintagemilano)

You really need to do a before and after mods run to for the numbers to mean much...
 

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Re: I could really use a dyno (JimLill)

As stated, you'll need to test each part before and after. You're going to need at least half a day, maybe a full day, if they have to move the car back and forth across the street. I'd suggest starting w/ the downpipe, as that may take the most work to install. Not sure what the place that was suggested charges, but be prepared for a couple hundred $$$.
 

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Re: I could really use a dyno (StaggRLee)

Yesterday I witnessed 2 extremely modified R's on the dyno using stock software and the output numbers were withing the ranges tested for stock engine's.<p>Uncorrected HP between 297 and 308 crank, torque between 375 and 395 Nm. (277-291 lb-ft)<p>Corrected DIN 70020 HP suggested between ~291 and ~301 crank HP. Multiple runs were made.
 

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Re: I could really use a dyno (frankhoffy)

Why not try one of those g-force acceleromter devices? The Gtech seems to be the best one but the Beltronics FX2(aka Passport GT2) at less than half the price is also really good (get the FX2 at summit racing on clearence for $108!, you'll also want to get the software and PC cable for another $25 dircect from Beltronics). I got an FX2 and plan to do lots of before and after testing, just need to complete my break-in period before I start really driving this new baby.<p>LTA<p>
 

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Re: I could really use a dyno (LTA)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>LTA</b> »</i></TD></TR><TR><TD CLASS="quote">Why not try one of those g-force acceleromter devices? </TD></TR></TABLE><p>That is what I did. <p>The huge advantage of the G-Tech is that it measures actual performance increases, not a prediction of performance from a dyno. It has been widely reported that the R does NOT perform the same on the dyno as it does in real world.<p>You can dyno in FWD mode to eliminate Haldex variable, but that isn't how your car runs. <p>If you run AWD, you can't control Haldex variable. <p>The G-Tech RR was found to be VERY accurate (Car and Driver found it averaged within .05 seconds of timing lights at 1/4 mile track), and the software it comes with is just awesome. It has a road race mode that tracks my performance on the track for comparison later. Can do it at the track if you bring your laptop. Also, if you enter an accurate weight of your car, it will tell you your real horsepower.
 

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Re: I could really use a dyno ("R" Kelly)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>"R" Kelly</b> »</i></TD></TR><TR><TD CLASS="quote">Also, if you enter an accurate weight of your car, it will tell you your real horsepower.</TD></TR></TABLE><p>Which brings up another question. Where can I weigh this thing?
 

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Re: I could really use a dyno (frankhoffy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>frankhoffy</b> »</i></TD></TR><TR><TD CLASS="quote"><p>Which brings up another question. Where can I weigh this thing?</TD></TR></TABLE><p>look for a local trucking company. They all have scales that will owrk and they should let you do it for no charge if you ask nicely. All you do is drive on it, park for a second and drive off. That simple.
 

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Re: I could really use a dyno (LTA)

I whole heartedly recommend this approach. It's simply not going to be cost effective to do the before and after combinations with a dyno unless you're getting a BIG discount. <p>The GTech Pro RR is very accurate and calculates 'net' horsepower meaning it's not theoretical but actual and it accounts for drivetrain loss, aerodynamics, etc.<p> <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>LTA</b> »</i></TD></TR><TR><TD CLASS="quote">Why not try one of those g-force acceleromter devices?...<p></TD></TR></TABLE>
 

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Re: I could really use a dyno (rollie)

The Gtech has been proven to be accurate but for ardguement sake... lets just agree for a second they are right on and go with the published tests.<p>they will measure consistently and nobody can argue that. Do the tests on the same day on the same road on the same gas and you should know then what percentage of a gain you are getting. The money saved from doing all the dyno runs may be enough to buy one. IMO, it is at least close enough to justify one and you don't have to pay more money everytime you need to use it. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0">
 

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Re: I could really use a dyno (R_Rated)

I believe the Gtech RR is the best becuase it uses one more accelerometer than the others do. This third one is used to measure and automatically compensante for the pitch/dive during accelation/breaking. With the others, like my FX2, you have to manually adjust or pick a setting based on some of the cars they tested it on (I'm geussing the S60R in Advanced mode is somewhere closer to but between Audi S4 and the 'volvo sedan').<p>The Gtech also has the best software but the FX2's is adequate.<p>I have yet to try my FX2 in my R.<p>The best way to compensate for all the variables between wind, road slope, temperature, gas, launch quality, etc. is to measure LOTS o of runs and calculate an average. <p>LTA<br>
 
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