Virtual Dyno 94 MK Turbo
 

I've been running the MK kit successfully at 10-12psi for the last year (10kish miles). Finally got around to playing with Virtual Dyno. Results look pretty on par with what everyone else is seeing. Hopefully I can get a spot at a local dyno day soon.

I am running a fresh tune, switched to "incorporate AFR" so I've had to retune my VE table, still have a little work left in getting that perfect.

https://cimg8.ibsrv.net/gimg/www.mia...63ffffaa2a.jpg
Last year I did run an 8.6 1/8 mile at 82-84mph. Looking forward to knocking a couple tenths off and getting into the 12s on the quarter!

Nice!

Any butt dyno changes with the new tune?

Looks like a fun setup!

It definitely feels like it's pulling harder. I'll be taking it back to the 1/8 mile the first Saturday in May to see if I can beat 8.6. I should have the tune pretty well sorted by then!

There's a quick 1-3 on my local closed course test strip

Fuel looks like it is a little rich. Would also love to see a VD from like 2000rpms to redline. Otherwise it looks good and I am happy you are enjoying the setup.

​
thanks Lars. It is definitely too rich at the lower rpms, this was one of my first WOT pulls from a lower RPM on this tune. I'm going to work on that after work tonight and get a pull in 3rd from 2,000 for you. She spools quick!

https://cimg6.ibsrv.net/gimg/www.mia...c72724f254.jpg
Ambient temps are up about 20* today. I think I lost a little boost up top.

clean/simple plot. Why did you set correction so high? are you at elevation or something? also weight seems high for an NA, unless you weigh 300lbs

To be honest I have no idea what I'm doing
​doing. Found a value for 3rd gear, that's the 1.11 value for the "dyno." I haven't done much weight reduction so I figured I'd added 100lbs to the stock 2300. Roll bar, 6uls with 245s, the turbo, hard top, radiator etc all have to way something.

As for the smoothing, the Focus ST guys yelled at me for only smoothing to 1, but I think they were mad a mostly stock but tuned ST was putting out 380tq compared to their 300tq Cobb maps:party:

correction factor should be at 1, or no correction.
don't think an NA weighs 2300, and definitely not 2400 with a tank of gas.
I'm just trying to make sure your plot is comparable to the others, I'm not trying to pick it apart. given the above I'd guess you're at 180

My title says 2290 for weight. I've been meaning to get it on the scales.

​​​​​​​180whp?? And out trapping Subarus and evos in the 1/8 mile? I'm not doubting you but that seems low. I should be on pace to be well over 100 in the quarter

Well, git that sucker on the 1/4!

I know. It's a little far for me (2 hoursish), compared to 10 minutes to the 8th, and no reputable dynos either. Good old middle of nowhere NY. Numbers are just numbers but I would still like to know.
​​​​​​
i have my blackbird spoiler angled very aggressively for autocross. I think I'm going to mellow it out and see if that makes a difference tomorrow.

Maybe it's more. Re-do the VD and add only your own weight and the weight of the rollbar as delta, with correction factor 1 and see what it shows.

Or run the quarter and know for sure. I dunno, just saying it's off per the settings you have put into it. Stock sti's and evo's have about 40hp on you and like 1000lb more weight, so yeah I don't doubt that you're faster.

My 1990 with roll bar, AC/PS, 3/4 tank and about 20-25lbs worth of sound system came in right at 2284lbs sans driver.

maybe you're right, all I've weighed before are NB's. but even so, the correction factor being 1.11 is inflating his number by 11%, which would put his hp at 186-191

all this is just bench racing so I'm sure no one cares either way, it's just nice to be able to compare plots at least somewhat between the cars.

The default CF for virtual dyno is 1.09.

I got my 1.11 number from this thread
https://forum.miata.net/vb/archive/i.../t-517684.html

Again it doesn't matter. No two dynos are going to yield the same results anyway. Quarter mile trap speed is all that really matters. My 1/8 mile walked a Ken Hill dynod 1995 230hp mp62 Miata with a far better driver than myself by a half second (8.6 v 9.1, 84 vs 75ish mph) so that's really the main reason I expect it to be higher... Other than his car I don't have any other Miatas to compare to locally.

Here's an old VD of my previous MSM on 91oct (blue line)
https://www.miataturbo.net/attachmen...ine=1430285631

ran a 9.0 @ 82mph in the 8th with pretty crappy driving
it's at least 200lb heavier than your car
https://www.miataturbo.net/suspensio...4/#post1220723

went back and ran it on the red line plot from above


https://cimg2.ibsrv.net/gimg/www.mia...1e662112a8.jpg

8.8 @ 83.5

Side note, that torque curve on the msm looks sexy for what I assume is a stock turbo.

And my NA with no AC/PS but the stock thumper audio seats and full interior (like 40lbs a piece?) weighed in at 2350 without driver.

I love it when 18psi posts timesheets :party:

I gotta get my mph to 105!

:bowrofl:

Don't make me post a timeslip, so you feel like you need to get 109 in the eighth.

:bowrofl:

Your 60' time is very nice in my opinion, not Pat's.

I'm hoping I can drop it even lower on my new 245 rs4s:hs:

What tires were you using for that eighth?

That '60 makes mine look pathetic, but that's expected since I was on cold crappy all season 205's.

I guess I did use the DJ setting, and I'm pretty sure everyone else does around here too (it's been a very long time since that plot). Anyways, that puts you around 205-210. Your NA has got to be at least 100-150lb lighter than an MSM though, there's no way they are anywhere near the same weight. MSM is the heaviest of them all by 100lb minimum

195 Toyo R1Rs with 8k miles of abuse. Definitely still pretty grippy though

Yeah R1R's r going to yield better 60's than 3something treadwear dailys. My best 60's are 1.89 and 1.90 on all seasons at like 18psi;)

i wish i still had the slips of when i ran my 2000 altima in the 1/4 mile... then i could play too.

I just need to beat my daily. Thing is a piece of shit, but still.
https://cimg8.ibsrv.net/gimg/www.mia...44dc2a2a33.png

nice, what car is it?

my daily should run 11's, Miata aint touchin that lol

(sorry for off topic OP :giggle: )

​​​​​​​With a nice MKTurbo setup and the larger turbo your miata can get within a second of that. I even know of a semi local driver who can run those times for you. Add on some slicks and he can probably get you even closer.

:idea: :D

Maxima that I am desperately trying to get rid of into something "newer" for the woman's sake. Such a boring road.

This is one of my dailys and it is a total POS, but it's the fastest one I have :skid:
Obviously we got rained out or I would have a better pic.
https://cimg8.ibsrv.net/gimg/www.mia...bcffb3a3f3.jpgI wanna play too

I see your slips and raise you!

Depends on the year, but NA8's can get pretty porky. My 97 Touring with full interior minus soft top/passenger seat, roll bar, me at 190lbs, and sucking fumes was 2410lbs on NASA scales. That's with no turbo fun.

Wow. Now I'm even more surprised why anyone would ever buy an NA :giggle:

I mean, it's not like I was a student there. I simply know a bunch of the upper level management personally and​ have had the misfortune of dealing with them on a few occasions. Beware!