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01-02-2007, 11:28 PM | #1 |
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Megan Header Dyno Results
WEEEEEEEEE
130267519_423378321_0.jpg What a fun experience man... I got to shoot the shit with the guys from Twisted Innovations and talk about this car and other cars. I learned a lot. As far as the results, their printer was down so they are e-mailing me the sheets tomorrow. The gain was 3 or so horsepower, but that doesn't tell the whole story of what the header does. There was also a steady 3 ft/lb gain in the torque curve that came on quick and stuck around for a few thousand RPM. There was no net torque gain though. We did both runs in third gear. It was funny... we first ran the car in fourth gear and got a whopping 125 HP to the wheels! I was so confused! As the boys said, though, "the dyno doesn't lie." It was even calibrated a couple of weeks ago, so for a second we were stumped. Then one of the guys in the shop said that some of these fuel efficient pump gas cars have two overdrives to save some MPG's. Anyone know if that is the case with the Yaris? The third gear runs had us in the 105 HP range. I'm sure if we had done the tests in first gear we would have been in that 70-80 WHP range that is documented. Either way, we got the gains. The guys at TI seemed excited about the prospect of having the car in their shop, and hopefully I will be working with them to develop some more parts for the car. You'll see threads popping up in the appropriate forums meant to gague interest in certain parts. If you see something posted that you would like to be on the market, post in the thread, because they're watching. I'll post the actual sheets tomorrow. Last edited by ChinoCharles; 01-03-2007 at 12:00 AM. |
01-02-2007, 11:32 PM | #2 |
I drive a yarrrris
Drives: 07 Sedan Polar White Join Date: Sep 2006
Location: Rochester, NY
Posts: 1,009
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cant wait for the print outs! Like I said in the GB thread I wish i had the extra cash during the GB....
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Docotrs say all the drikning has mesesd up my seplilng and radieng will work for parts |
01-03-2007, 12:17 AM | #3 |
Congratulations man… I am beyond Jealous!
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01-03-2007, 12:29 AM | #4 |
Drives: Polar White Hatch Join Date: Nov 2006
Location: chicago
Posts: 407
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They are correct, 4th and 5th are overdrive gears. 105WHP is super strong considering the Scion guys are around 78whp.
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ChinoCharles Intake supporter. |
01-03-2007, 01:39 AM | #5 |
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wow 105 to the wheels???
this is a swap from the stock header to the megan, while retaining your other mods...which your mods are all listed in your sig? |
01-03-2007, 05:37 AM | #6 |
Great results!
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01-03-2007, 10:08 AM | #7 |
105? awsome
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My Ride From Puerto Rico Yaris Sedan 07 - MODS - 20% Tints Tanabe NF2210 Suspension Two AudioPipe 12 Inches for Bass with 1000 Watts Amp BOSS 17 Inches Rims Ground Wire |
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01-03-2007, 10:58 AM | #8 |
Drives: 07 Sedan - 5 Speed Manual Join Date: May 2006
Location: Pomona / Pasadena, California
Posts: 337
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Sweet! Can't wait to see the dyno sheet
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01-03-2007, 11:28 AM | #9 | |
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Quote:
And yes, my mods are all listed in my sig. |
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01-03-2007, 11:36 AM | #10 |
Drives: 2007 Black Yaris sedan Join Date: Sep 2006
Location: Atlanta
Posts: 884
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Only 3 ponys more,Im sorta let down,was hoping atleast 5.Well my car is in the shop today to get its ne custom 2.5" cat back,plus the header is being installed,I wish I could get my hands dirty on this one,but I curently have no welder,and I figured let them get the header while theyre at it.I have no dyno that I know of near me,I would love to actuall see some final numbers when Im done,I just might have to get them done at the NOPI car show next year.
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01-03-2007, 02:56 PM | #11 |
Drives: Nissan NX2000 Join Date: Nov 2006
Location: Canada
Posts: 12
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It sounds like they were not using a pickup to read actual RPM.
A properly set up dyno reads the engine's RPM so gearing does not matter. whether you are in first, second, third, fourth or fifth gear, the dyno will know the RPM the engine is at, instead of just guessing. Since going from 4th gear to 3rd gear yielded a lower power reading, this makes me think they are not using an RPM pickup. The hp numbers appear to be lower since the wheel speed is lower (hp=rpm*tq/5252). The 105 at the wheels number is obviously not accurate, there is no way there is only a 3hp driveline loss. This means the 3hp gain that was noticed is also slightly overstated. Perhaps 3hp at the crank is a more accurate figure. Either way, I am glad to see positive gains. Looking forward to seeing the dyno graph. |
01-03-2007, 03:27 PM | #12 |
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They were using a pickup to read RPM's. By the way, I had to giggle when I saw she idles at 600 RPM. Wow.
I'm still dying for someone to explain the differences in HP from gear to gear... or just confirm that the car has multiple overdrives. |
01-03-2007, 03:39 PM | #13 |
Who said Yaris was slow?
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Get those graph posted asap! I agree those numbers dosen't sound right. The HP's shouldn't go up and down when changing gears. Did this dyno concidered the atmosferic variables for correcting horsepower and torque to a known standard?
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01-03-2007, 08:30 PM | #14 |
Drives: icebox Join Date: Apr 2006
Location: CAN
Posts: 1,003
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Can't wait to see the data sheets...
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01-03-2007, 08:38 PM | #15 |
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Yeah, I just called and the shop is closed. They must have taken the night off... they were there until 11 PM last night, so I could understand. Looks like y'all sit in suspense for another day! HAR HAR!
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01-04-2007, 01:00 AM | #16 |
Drives: 2006 Yaris RS Join Date: Feb 2006
Location: Vancouver
Posts: 61
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Damnit, I just missed the Megan Header GB. Can I still get one though? Where should I buy it from?
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01-04-2007, 01:02 AM | #17 |
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Drives: LB Join Date: Jul 2006
Location: OH
Posts: 7,787
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Get the NST crank pulley instead. Better gains for the money.
Oh, and when you do get the header, get it from the generic seller on Ebay. Its a tad cheaper. http://cgi.ebay.com/ebaymotors/Perfo...spagenameZWDVW |
01-04-2007, 01:09 AM | #18 | |
Drives: 2006 Yaris RS Join Date: Feb 2006
Location: Vancouver
Posts: 61
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Quote:
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