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Author Topic: Dyno Day  (Read 39093 times)
Autox
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« Reply #50 on: March 01, 2009, 08:24:55 AM »

This is Paul Hale's 280z

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Keath
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Over heard at a recent club meeting: "Isn't dyno'ing a Miata like seeing how much weight a Super Model can lift??"
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« Reply #51 on: March 01, 2009, 08:26:14 AM »

Bill Lloyd's Stripper Camaro

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Keath
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« Reply #52 on: March 01, 2009, 08:27:50 AM »

Justin Loehlein's Civic Type S

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Keath
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« Reply #53 on: March 01, 2009, 08:29:06 AM »

Michael Mimms Cobalt S

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Keath
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« Reply #54 on: March 01, 2009, 08:30:22 AM »

David Ogburn's NSX

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Keath
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« Reply #55 on: March 01, 2009, 08:32:04 AM »

Chike Dellimore's RX8

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Keath
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« Reply #56 on: March 01, 2009, 08:33:21 AM »

Roger Garrett's C6 Z06

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« Reply #57 on: March 01, 2009, 08:36:36 AM »

John Harmon's '04 C5 Z06, my '02 C5 Z06 and a comparison of the two including a marker showing the torque at 2100 rpm. 



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Keath
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« Reply #58 on: March 01, 2009, 08:37:42 AM »

And finally all three vette's best runs graphed together.

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« Reply #59 on: March 01, 2009, 05:29:47 PM »


 I can't believe how long that rx8 holds onto its power curve And Rogers Z06 numbers are incredible .
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If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. Mark Donohue
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« Reply #60 on: March 01, 2009, 07:14:07 PM »

I can't open the links. Am I doing something wrong?
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« Reply #61 on: March 02, 2009, 09:28:26 AM »

Me either, just right click on them and hit "save target as", save them somewhere and then you can open them from whereever you saved them

John
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« Reply #62 on: March 02, 2009, 09:48:05 AM »

I can do what John said or I can just click on them and they open in a viewer window.

Here are a few pictures from Saturday

http://www.flickr.com/photos/ogburn/sets/72157614690418550/

David

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« Reply #63 on: March 02, 2009, 03:31:13 PM »


 I can't believe how long that rx8 holds onto its power curve And Rogers Z06 numbers are incredible .
Unfortunately, my RX-8 was "broken" when I had it dyno'd. When replacing the coils the weekend before, I broke off a vacuum line that goes to the airbox. I didn't think much about it and just ordered a replacement part from Mazda.

When some "RX-8 gurus" looked over my dyno graph, they commented that peak power should have been made in the 7-9K range, while my power curve was flat at that point. Turns out the vacuum line I broke off opens up the Fresh Air Duct (FAD) at 7,250rpms which shortens in the intake runner path for the high rpm "power mode". So I not only had a small amount of air getting into the intake after the MAF, the FAD didn't not open above 7K rpms.

Looks like I'll be giving Kevin @ PAS a call later this month to get my car re-dyno'd for a true baseline. As luck would have it, the parts from Mazda arrived Saturday afternoon when I got back home! I replaced the part in 35º weather yesterday (not fun!) and she should be running like normal right now.
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« Reply #64 on: March 02, 2009, 05:17:26 PM »

Actually, I can't even SEE the links. All I have is the "Roger Garrett's C6 Z06" type of thing. Nothing there for me to click on. Huh?
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« Reply #65 on: March 02, 2009, 06:28:33 PM »

emailed the all to you

John
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« Reply #66 on: March 06, 2009, 10:05:38 PM »

Actually, I can't even SEE the links. All I have is the "Roger Garrett's C6 Z06" type of thing. Nothing there for me to click on. Huh?

Make sure you are logged and try again. You cannot see them unless you are logged in.

David
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« Reply #67 on: March 13, 2009, 06:16:50 PM »


 Just got the dyno graphs today . I never supplied PAS with an email address .

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If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. Mark Donohue
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« Reply #68 on: March 13, 2009, 07:21:10 PM »

Pretty impressive for a car rated at a little less than it dynoed. If I recall correctly, it just has a CAI and a reflash that doesn't increase boost.

David
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« Reply #69 on: March 14, 2009, 03:59:50 PM »

I was under the assumption it did at first but I've read stock boosts up to 19.5 which i've never personally seen reason I asked Kevin to dyno it in 5th was because you can feel more power in that gear on the interstate just curious really . turns out theres a big difference . The only thing I can say positive about the tune is that it holds to redline a little bit better , but I'll let the graphs speak . Here's the best "hp base vs best hp tune" and closest comparison "base to tune" both actually in 4th gear on the later. 

 I did max smoothing on both so i could make some sense of them .

I know the dynographs are both in SAE but the base tune was 30 degree's warmer outside .

personally I think the best thing the tuner is for so far is to clear CEL's lol .

both in blue are tuned maps both red are stock maps  first graph is 5th gear "blue" vs 4th "red"


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« Last Edit: March 14, 2009, 06:10:03 PM by ccann26 » Logged

If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. Mark Donohue
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« Reply #70 on: March 14, 2009, 04:09:47 PM »

  the speed3 could very well be underated from the factory . Road and track said "263 bhp at 5500 rpm and 280 lb.-ft. of torque at 3000 rpm give this bronc some serious "giddyup," with a midrange that punches harder than anything in its class. The power drops clear off the map at 6000 rpm, irking a few editors on staff since it's useless to run the engine up to its 6750-rpm redline,

263 bhp at 5500 rpm and 280 lb.-ft. of torque at 3000 rpm  I would hardly believe tq on a turbo car would stop at 3000 .

 You can see a difference when comparing the stock vs tune after 5500 seems to hold the throttle open a bit longer but thats the only thing I see different . Thinking about getting that turbo-back exhaust put on and running in DSP . Only thing is this car is worthless without traction and a decent driver and I don't have either haha
« Last Edit: March 14, 2009, 06:13:55 PM by ccann26 » Logged

If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. Mark Donohue
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« Reply #71 on: March 14, 2009, 09:08:18 PM »

How bad is the torque steer? I am amazed how bad it is in the Mini without nearly as much power as you have.

David
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« Reply #72 on: March 15, 2009, 04:05:40 AM »

im surprized you have any torq steer at all in the Mini. but yeah im interested in that question as well.
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« Reply #73 on: March 15, 2009, 10:05:45 AM »

The electronic nannies do a pretty good job clearing that up . Usually if you get on it hard its noticeable if there is good traction nothing unmanageable though . It took a little getting used to taking corners + hard  exceleration and having to physically straighten the steering wheel back out with the DSC off .  It has extra reinforcement around the floor and center tunnel , across the strut towers a torque sensing limited slip , equal length reinforced drive shafts and somehow the ECU robs it of torque in 1,2,3rd gears probably why the car feels like it has more power in each successive gear .

 my 95 mecury sable used to do the same thing around corners though . So its actually really good
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If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. Mark Donohue
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« Reply #74 on: March 15, 2009, 10:09:46 AM »

How bad is the torque steer? I am amazed how bad it is in the Mini without nearly as much power as you have.

David

 I thought it was bad going from an 88 rx7 to the 95 sable lol . the Rx7 would go around corners like its back wheels actually turned with the front it handled so well , then I had to fight with the sable or just learn how to drive slow witch i did .
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If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. Mark Donohue
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