Sweet. Can't wait to see what he does when het get some timing control.

--Dave

 

Buschur intellegently "induces" timing with the fuel settings. The best SAFC programing out there. So yes and no No actual timing control but Buschur secondarily induces the timing- Although Id like to see his AFRs as Dave has no prob running near 12:1 on his programmed SAFC cars. Weras Shiv runns up to mid 11s and Al even richer. Not saying the Buschur is too agressive but he sure has confidence in the settings

 

the red one was grifter_mp5. not planning on timing control, pretty much done with the car for a while. gained 75 hp at the top end over stock, 47hp peak. uncorrected that is!
amigoni, did shiv get your car tuned back to the 356 torque mark? when i left he was still working out the timing curves trying to smooth out the curve. that is awesome if he did. i bet the car was getting pretty heat soaked!
i'm going to try to get back up there either friday or saturday to tune my s-afc also. i ran grifter the other night after installing it and it was pretty close! he was at stock boost though.

i think the car has plenty of turbo left up here. as shiv learned during his trip, a little over 20 psi seems good. shiv was tuning to 12:1 afr also, at least up here he was.
he seemed like a nice guy to me.
cheers!

 

Let's see some dyno plots!

 

i'll try, no access to a scanner. but, i'll see what i can get done with a digital camera!

 

Ya, take a pick I would love to see it.

 

won't have mine until the end of the week. i'll see if i can get grifter_mp5's though. great numbers for about $1600!
think it was about 315/322 SAE corrected. i'll get back on that though!
cheers!

 

booo, So none of the 20 people have a stage 1+ dyno that they can post?

 

The difference between no timing control (AFC) and timing control (XEDE) is consistency (lack of run-to-run variance), smoothness, and oh, about 20-35ft-lbs of torque throughout the low end an all though the midrange. Looking at peak numbers doesn't say anything since the stock turbos, at 6000ft above sea level, are essentially maxed out at higher engine speeds. However, the Stage Zero and up EVOs are making close to 300whp (SAE corrected) by as early as 4500rpm.

Here's a quick summary of the weekends results:

Stock EVOs put down around 250whp
Stock EVO with XEDE put down 285whp
Stage Zeros with downpipes put down ~305whp
Stage Ones put down 315-320whp
Stage Ones with cams put down 340-345whp

Due to the altitude, the EVOs run out of breath early, often reaching peak hp as early as 5500rpm. So the goal of the day was to maximize the torque curve and to improve run-to-run consistency (which isn't possible without some form of timing control). I have all the dyno data on disk and I'll post up plots when it get back to CA. Pretty neat comparing the S-AFC tuned car to the XEDE tuned cars. You will not mistake one for the other.

The 98lb "DSM dude" who showed up (dlandrytsi aka Dave), with the one and only DSM, blew up his motor on the dyno while tuning his trusty DSMLink. I guess he forgot to mention that

Cheers,
shiv

 

LOLROF, you had to be laughing inside about that **** Shiv, after all the hell they gave you. Could not of asked for anything better. 98pounds, I bet you were scared as well.

 

None of us laughed. We we too busy choking on all the uncatalyzed blow-by coming out of the engine bay and tailpipe. Appearantly, his solution was to use a higher volume catch can. Really quite a spectacular exhibition of tuning prowess and component matching.

The owner of the shop asked him to get off the dyno shortly thereafter.

Other than that, it was a productive weekend.

shiv

 

On what dyno where these summarys achieved?

Would it be fair to assume that a DD dyno would read -50 whp off all of these values?

Thanks in advance for your time......

 

Ok you wanna play it that way..... Fine. The motor did not blow up. I got the baseline that I wanted out of it. Now its time for me to redo the fuel and timing maps.

Unless you see parts fly off my car or any other DSM it hasn't blown up.

You obviously havn't been around real dsm's much to see what happens when one DOES grenade.

If the car did blow up I wouldn't have been able to drive it home.

--Dave

 

You mean its fine if you are spewing smoke and needing to add a quart on the way to 7/11? Ringlands count bro Im sorry for your misfortune. See I count ring lands and the catch can filling up fast as a blown motor not running to its potential. I know I might not fit into the DSM way of things but hey It does take skill to have a combustion event large enough to make parts fly off they car! And I thought a blown engine was just a det induced "nick" out of a ringland

 

you could definately see the difference in torque with the exede, that's for sure. the power curve's line was much smoother the stock or the s-afc too. but, i do think that the torque held out longer with out timing control being advanced at the lower rpm's and then having to retard it at the higher rpms.
just my .02 shiv, you obviously know what you're doing. you could tell when you were changing things and predicting exactly what it would do.
i do remember a lot of torque showing up on a stage 1+ car after a boost increase though.............like 30 foot pounds!
intersting.....trips to higher altitudes can be a good experience. even with a 98lb DSM dude with at least one broken ring land!