Cam

iTrader: (1)

I looking forward to this. Never dynoed a car before. Of course since my 8 is stock it wont be too exciting since I know what to expect.

Nemesis8

iTrader: (3)

Even though it is stock, it is still a high performance sports car!

dmp

I'm pretty excited about my before-after tests with the oil/fuel additives. Course, spending $75 TWICE to see if a product like this works isn't too exciting lol...

I'll accept donations! :D

Cam

iTrader: (1)

Why would you have to pay twice? In your first post it states

"Their policy is "we'll run the car a couple-three times; but when the numbers start repeating, we'll put the next car on. There's no sense in running a car over and over again to show the same results."

$75 for ONE pull.

That pisses me off, mostly due to reading this http://64.9.213.132/rx7club.com/foru...d.php?t=394238

I also say Intec Racing in Kent is having a Dyno day...like $10 a pull.

EDIT:
Adding below comment.

DMP, Im not pissed at you. More upset with what sounds like double talk from CarbConn.

fastmike

They usually run a few pulls until #'s start repeating.
I will not pay $75 for just ONE pull. I don't think that is going to happen though.
We will be there.
FM

dmp

As FastMike mentioned - it's not $75 for one pull...it's $75 to hook the car up, and make a couple-three pulls, but "there is no reason to dyno a car 6 times if the first three or 4 runs produce identical results"

I have to pay twice, to follow the directions of the fuel/addatives I'll be adding to the car.

It'll go like this:

Darin dyno's with 1/8 tank fuel. Dyno's a few times.

Darin pulls off the dyno, drives to gas station, adds fuel addative, oil addative, then fuels up his car.

Then, Darin will drive around for 15-20 minutes, and come back to the shop, and hook back into the machine after the car currently on the rollers finishes. $75 to hook back up.

My 'donations accepted' statement really means "I'm prepared to bite the bullet for the sake of the RX8 community, but I'd take a few bucks if anyone wanted to contribute'

:D

[edit] i bet if we had 100 cars, we could get a reduced-rate, too! :D

dannobre

iTrader: (3)

I want to hook up the canscan and log all the runs if posssible. I want to compare the data logs from the dyno...to the CanScan logs for the A/F etc. I may have my car on all day...I want to try a few different maps....that will make the #'s change...therefore more pulls :D

(Just Kiddin :D about the`whole day thing!)

fastmike

We might be doing the "double" duty thing with the 8 too cause I want to test a straight pipe.
WATCH OUT EARDRUMS!
I will bring my DB meter too.

FM

dannobre

iTrader: (3)

I'll remember my ear plugs then..I'm sure it will be as loud as an FD with a straight pipe...YIKES

Nemesis8

iTrader: (3)

Here is my graph SAE corrected from the files Dan had. I am still waiting to see what CarbConn sends me tonight.

Shamblerock

Nemesis8, 180 max WHP? I thought (hoping) the 8 would be higher than that and also you have a few minor mods that I thought may provide slightly better numbers than the stock 8. I know I have read in many places that the 8 doesn't dyno well . Does you car feel good/responsive and as strong as when you first got it?

Nemesis8

iTrader: (3)

It's actually stronger now with 21K on the car. My mileage has gone up also to around 19-20 MPG.

The graph was SAE corrected by the way. I am installing my midpipe on Monday and will run another dyno then. So, right now I only have the Racing Beat exhaust and a high flow dropin air filter. I think the midpipe will show the biggest gain. After the midpipe, I'm installing underdrive lightened pulleys and will do another dyno, then....

dannobre

iTrader: (3)

^^^ sounds like a Dyno Junkie has been born :D

Nemesis8

iTrader: (3)

If I use a 5 to smooth the curves, they drop in HP

John Racz just e-mailed me the same files that you had. How do you get the torque and A/F ratios to show in the software??

Nemesis8

iTrader: (3)

I figured out the a/f graph, but I can't get torque to work.

dannobre

iTrader: (3)

You need them to format the files they sent you. The dynojet software is different than the reader software...which is a viewer...kinda like adobe reader. You can read the data they send...but nothing else

Nemesis8

iTrader: (3)

Yeah, I figured that.

dannobre

iTrader: (3)

I'm going to try and get them to send me the data files...we'll see what happens

Nemesis8

iTrader: (3)

I want to see your data for the 206 HP car. Who owned that one?

ironmedic

mememememme!

Nemesis8

iTrader: (3)

You should put a picture of your lease loan officer under that bat

dannobre

iTrader: (3)

I think it was Warren's car...... don't know his nik

dmp

Renwar1

ddub

So from reading the thread in rx-8 discussion forum, the 206whp was on a stock rx8? How? I mean, yours is modded and you hit 180's, I don't get it.

Does this mean the 235 flywheel hp mazda quotes (I think that's what it is?) is very inaccurate? Because with a 15% drivetrain loss that should be ~200 at the wheels, stock.

fastmike

Thanks to EVERYONE that helped with tools/lifting/stock exhaust etc.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I reviewed our graphs(No "M" flash as far as we can tell).
I think that building a "real" straight pipe/turndown that has a bolt on flange at muffler will be the way we go in the future for us.
Muffler for day to day/ straight pipe for autox events.
We had more TQ/HP from idle up to about 7K then I think that we were getting a misfire or something at top and graph flattened out.
Maybe we will try better wires with pipe and do another test.
Car did run leaner with straight pipe and it took off a lot of weight out at the end of the car which is also important for us.
Lower polar moment of inertia with straight pipe is a good thing.
I think that Shelbi's car made 193 peak with stock exhaust but I think that is would make in excess of 200 IF we car cure whatever is happening in the last 1000 rpms.

I thought the 138 HP car had a bad plug but he said that was not it.
Hmmmm...
I don't know.
FM