Dyno day at Badger 5-November 6

Team Prawn :)

2dazxfq.jpg
 
1animal1 said:
defo next time chaps, give you a chance to mod your cars cos my CC will kick all of your ***'s :)
Click to expand...

It's ok Tim, you had me to back you up, my 154k mile CC stage1 S3 made 251.5bhp on it's third run, well impressed with that if I'm being honest! :)

More pics of Team Prawn 'spying' at our S3's
06112010366.jpg

06112010367.jpg


I think he maybe converted after a quick blast in mine too. :racer:
 
Really enjoyed the day and nice to meet a few of you.

Thanks Bill, Welly and Tuffty for a slick set up and friendly atmosphere.

Bit dissapointed in my S3's numbers, really thought she'd put out a bit more than she did! Still, better to know for sure than just "have an idea"

With the logs in black and white I can convince myself getting a FMIC and adjusting the Revo settings will get me a bit more.

Bill, can I my logs in excel format? Can I convert it? Im not sure?

Cheers all,
Emerson
 
ems3 said:
...can I my logs in excel format? Can I convert it? Im not sure?...
Click to expand...

Excel opens CSV files mate... once there you can freeze panes etc and save as .xls (or .xlsx if 2k7 or 2k10)

<tuffty/>
 
I had a brilliant day too, pretty stress free keeping the car off the dyno. It was good to meet more of you and put names to faces!
 
Good pics!!!! Need to sort my fueling out!!!!! But happy with 265bhp.... When we doing it again then?!

Pete...
 
leshkin said:
Ha-ha - just saw the logs... I see what Bill meant about there being zero timing advance. I wonder what sort of power I could see if this was adjusted to a sensible value, considering that it's already making 230bhp :think:
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leshkin said:
A trip to vag-check is in order me thinks :w00t:
Click to expand...
badger5 said:
aye, there's conservative and there's conservative.. Good news being there's more power in there when its added in
Click to expand...
Hi Leshkin,

I have taken a look at the logs Bill made as per your request.

Whilst I can see why Bill might think more timing could or should be added, I would personally be looking at why boost has dropped first before considering map tweaks to dial in more advance.

When you last popped over, boost was looking a bit more healthy than it is now. (4th gear pull)

Alexei115.jpg


You did have a few issues with the vehicle to resolve as I recall (& perhaps a new one looking at these latest logs).

Anyway it certainly would not have been advisable to dial in more advance on your last visit, as per the log below.

Alexei003020.jpg


Physical advance was certainly not the best, but to add further advance at that time would have been crazy.

We generally aim for around 2-3CF peak at full load/high rpm when tweaking advance for 99RON fuel, this way there is still some reasonable margin for the ECU to ****** timing & control knock should you inadvertently fill with lower grade fuel, or get old or contaminated fuel etc

Nowadays we also set other safety factors in place so should IAT/CF's get really bad, the ECU will cut boost completley rather than only gradually reduce it as a control stratergy.

Anyway you are of course more than welcome to make an appointment for diagnostics, & tweaks to the advance maps if its really needed once we have reviewed boost.

Hope this helps.

Regards
Morgan
 
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audi upgrades
Thanks Bill, Bill's Assistant, Paul and Welly. It was really good to meet up again and well worth the trip up from Pompey.

Jo - Thanks for showing me what an S3 should handle like.....oh, and go like too!! lol
 
Morgan, I'm not doubting your work for a second - many variables are involved, some of which have changed since you last saw the car. Hopefully next visit we can find some missing ponies :)

Taking this offline now so as to not to hijack this thread any further.
 
hopefully the value of logging during the runs becomes worthwhile now, so correlation of dyno to logs can be made.
sight unseen, the car had zero timing pull on the dyno, as said. its boost was 2400mb, so if it ran more boost previously then something else has changed. you can compare logs now to diagnose thos which i hope helps.
 
audi upgrades
Sounds like a great day was had by all, well done to all for organising, hopefully I will be able to make the next one :)
 
Nice pics Mark :)

I didnt get my camera out much to be fair as I was too busy blahing to people.

Looking forward to the next one for sure :)

T

PS: Highlights of the day were Jo's 'Millenium Falcon Miles' S3 giving great numbers and Prawns car (once it was raised up a bit). Really impressed with what it ran considering its current mods...its tempted me to KO3s my car now I think ;)
 
Looks like a fun day lads! Should of bought my fiesta and showed you what real power is! haha i joke! Would be embarrasing to see people pushing 2-4 times the power of my flippin go kart!
 
Awesome pics Mark!

My car looks so silly in those pics where it's raised up. ultimate reverse rake. it felt like going up hill just sat in it!

This look shall be known as Gloucester Spec!

Can't wait for the nest ASN meet now, it was really good to finally meet so many of you chaps :)
 
Looks like a good chilled out day. Just wondering how did people dyno results relate to their MAF values.

Nathan
 
Thanks Tom. I know its been said in a few threads that the Maf value/0.8 is pretty close to what a dyno says. I was just interested as Im getting 187 - 190 ish sometime which is about 234 - 238bhp on a standard 210 map but after seeing these results im not sure if it would make them figures on a dyno.

Nathan
 
Ah looks a great day guys, well organised all!

Bill, I've just been reading a thread singing your praises on another forum as well (Tom with the Red Bora) - you get around ;)

Welly, glad there's a burger van there are you? Lol!

Will have a gander at the rest of the photos tonight and PLEASE PLEASE PLEASE let me know about the next one, will get it booked in with the boss (at work and home!).
 
S3 Nattie said:
Looks like a good chilled out day. Just wondering how did people dyno results relate to their MAF values.

Nathan
Click to expand...

Looking at a couple of random logs...

JoJo's S3 made 251.5bhp and max airflow on the logs was 189.81 g/s (MAF calc bhp = 237.26)
A3Tom's A3 made 186.6 bhp and max airflow on the logs was 145.34 g/s (MAF calc bhp = 181.68)

Draw your own conclusions but pretty much suggests that you can take the MAF/0.8 calculation with a pinch of salt :)

warleydaddy's S3 had a Liquid Gauge fitted and the BHP gauge showed over 300bhp at one point... made a max of 265.7bhp on the rollers....

<tuffty/>
 
I thought the airflow logs from the dyno were really interesting. For me, the MAF/0.8 formula gave an under estimate!

As I expected, my car logged a lower airflow on the dyno compared to what it makes on the road, peaking at 175.56 g/s compared to a consistent 183g/s on the road.

The 183g/s I logged on the road suggested 229bhp, although to be honest I didn’t expect it to make anywhere near this.
Much to my surprise, the car made 224bhp on the dyno, but peak airflow on that run was just 175.56g/s.

So, of the 3 runs I did, it looks like this:

Airflow (g/s)--------maf/0.8 estimate(bhp)---------dyno result (bhp)
175.56-----------------------219.45---------------------224.3

172.25-----------------------215.31---------------------218.3

170.58-----------------------213.23---------------------216.2


Over 3 runs, the MAF readings were fairly consistently 2% lower than the dyno suggests, so it should be fairly safe to assume that when out on the road my 183.5g/s equates to 234bhp.

The power drops after each run because my standard side mount intercooler couldn’t cope, and after 3 runs inlet temps were getting crazy high reaching 66 degrees on the final run!

Bill: looking at my logs, almost all the CF’s occur on cylinder 4 only. Any ideas what could be causing this?
 
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