Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   Dynos and timesheets (https://www.miataturbo.net/dynos-timesheets-21/)
-   -   My first dyno (https://www.miataturbo.net/dynos-timesheets-21/my-first-dyno-52690/)

nicacus 10-16-2010 06:18 PM

My first dyno
 
4 Attachment(s)
Disappointed :loser:
Supposedly this dyno reads super low.
All the modded speed3's were reading 210 to 220 hp uncorrected, mine read 148.4

Stock 1.6 roughly 60,000 miles
13PSI gt2560
2.5 catless exhaust

Attachment 193518


Attachment 193519

http://img.photobucket.com/albums/v2...iata/dyno2.png

1/4 mile run
Attachment 193520

Here's a shot of the datalog.

Attachment 193521

They're cooling fans were worthless. The video shows the first pull. after that I went up to the front and held one of the blowers on the air intake while my friend held one in front of the intercooler.




All in all I'd say I need more tuning amongst other things.

jtothawhat 10-16-2010 06:31 PM

You really need a 3" exhaust my friend.

18psi 10-16-2010 06:34 PM

he needs more tuning.

Joe Perez 10-16-2010 06:53 PM

Your exhaust is fine. I managed to crack the 200 HP mark with my stock 1.6 on a Dynojet with a 2.5" exhaust, a plain ole' ceramic cat, and a tiny little Greddy TD04H-15G turbo running 13-14 PSI, but it took a fair amount of tweaking to get there. I picked up over 20 ft/lbs in the midrange with a few simple fuel adjustments.

I don't see AFR logged anywhere, either on the dyno sheets or on your image of the datalog.

Your ignition timing looks quite conservative to me as well. The base timing in the spark map isn't too bad, but take, for instance, the point where the cursor is (5515 RPM @ 171 kPa). The base map is calling for about 15° there, and yet you're only seeing 7.6° in the log. Part of that is probably MAT (133°F, climbing to 169°?!) although the curves (MAT vs. Spark) don't seem to be tracking the way I'd expect. Get in there and figure out what's pulling your spark advance.

thirdgen 10-16-2010 07:35 PM

Omg. How did I make 209 whp on a smaller turbo with a shitty setup? Oh..I know...I wasn't on a mustang dyno, and for 1/4 mile proof, I ran at a track that printed out a time slip saying 13.9.
A: you need to get on a real dyno.
2: you need to hit a real drag strip
D: you have to be making at least 200 whp. There is something wrong with your car/ tune.

jtothawhat 10-16-2010 08:26 PM


Originally Posted by thirdgen (Post 644215)
Omg. How did I make 209 whp on a smaller turbo with a shitty setup? Oh..I know...I wasn't on a mustang dyno, and for 1/4 mile proof, I ran at a track that printed out a time slip saying 13.9.
A: you need to get on a real dyno.
2: you need to hit a real drag strip
D: you have to be making at least 200 whp. There is something wrong with your car/ tune.


He has a 1.6L and you have a 99? lol either way the needs a tune badly.

nicacus 10-16-2010 08:33 PM

3 Attachment(s)
Here's the tune I was running and the full log.

Here's a snapshot of the AFR target table
Attachment 193517

3" exhaust is in the works.

I wouldnt have gone to a mustang dyno normally, but this was a local mazda dyno day, so it was fairly cheap. Plus I figured it would show me where I was at after having the car turbo for 3+ years.

jtothawhat 10-16-2010 08:40 PM

I don't know much about tuning but your transition into boost doesn't look good. But what do I know? Also 12.0 is a little lean for my liking.

hustler 10-16-2010 09:11 PM

your fuel and spark tables are terrible. Let me know if you can't find the info you need from examples in the tuning forum and I'll point you on the way to glory.

pdexta 10-16-2010 09:32 PM


Originally Posted by Joe Perez (Post 644210)
Your ignition timing looks quite conservative to me as well. The base timing in the spark map isn't too bad, but take, for instance, the point where the cursor is (5515 RPM @ 171 kPa). The base map is calling for about 15° there, and yet you're only seeing 7.6° in the log. Part of that is probably MAT (133°F, climbing to 169°?!) although the curves (MAT vs. Spark) don't seem to be tracking the way I'd expect. Get in there and figure out what's pulling your spark advance.

Joe nailed it, as usual. :bowdown: Timing is huge and when you're pulling that much you're leaving tons of power on the table.

nicacus 10-17-2010 05:09 PM


Originally Posted by hustler (Post 644250)
your fuel and spark tables are terrible. Let me know if you can't find the info you need from examples in the tuning forum and I'll point you on the way to glory.

I have a few different spark maps that I have run in the past without any issues. Last time I posted one up everyone shit bricks about how aggressive it was..

So out of fear I switched it to the current map.

If there is a certain one anyone recommends i'm up for it :)

As for fuel all of the tuning there has been from the autotune in tunerstudios.

I'd love to hear suggestions on what to do there as well.

Joe Perez 10-17-2010 05:19 PM


Originally Posted by nicacus (Post 644444)
I have a few different spark maps that I have run in the past without any issues. Last time I posted one up everyone shit bricks about how aggressive it was..

As I said before, the spark map itself looks like a decent starting point, but you're not actually getting the ignition advance that it's calling for.

Find out why.

nicacus 10-17-2010 05:20 PM

Could it have been from the super high AITs??

jtothawhat 10-17-2010 05:52 PM


Originally Posted by nicacus (Post 644452)
Could it have been from the super high AITs??

When you run very little timing like that that's usually you have high EGTs

Braineack 10-17-2010 06:27 PM

needs more timing and less AITs.

nicacus 10-18-2010 12:18 AM

2 Attachment(s)
Ok, went for a canyon drive and did some logs with a new spark table.

this:

Attachment 193501

Didn't hear any knock, and got no hesitation with that table. Is that table too aggressive?

Notice the manifold air temps on this log compared to the dyno log.
Ambient temperature was around 59* F

Here's a GPS track of the datalog.

http://maps.google.com/maps/ms?msa=0...c5ba47c728cbe5





datalog attached

aaronc7 10-18-2010 08:53 AM

for clarification... what is your altitude and are those numbers uncorrected?

nicacus 10-18-2010 10:14 AM

6400 feet
148 uncorrected
173 corrected


All times are GMT -4. The time now is 07:53 PM.


© 2024 MH Sub I, LLC dba Internet Brands