Notices
Evo General Discuss any generalized technical Evo related topics that may not fit into the other forums. Please do not post tech and rumor threads here.
Sponsored by: RavSpec - JDM Wheels Central

Works brain dyno with a/f coming soon

Thread Tools
 
Search this Thread
 
Old Aug 8, 2003 | 02:58 PM
  #46  
sir lurks alot's Avatar
Thread Starter
Evolving Member
iTrader: (2)
 
Joined: Aug 2003
Posts: 450
Likes: 0
So AL, you have already dyno'd works brain flash, but I have yet to see a/f readings or boost curves? What's the deal? the horespower numbers you posted don't mean ****, unless you show the whole curve. As usual your posts are not helpful, only there to get attention.
Reply
Old Aug 8, 2003 | 03:02 PM
  #47  
sir lurks alot's Avatar
Thread Starter
Evolving Member
iTrader: (2)
 
Joined: Aug 2003
Posts: 450
Likes: 0
Swapping ecu's will not work. I tried a couple different things and no spark. Oh, well now we know
Reply
Old Aug 8, 2003 | 04:43 PM
  #48  
jfh's Avatar
jfh
Evolved Member
iTrader: (38)
 
Joined: Feb 2003
Posts: 757
Likes: 0
Originally posted by BLKEVO8
I got the the Works flash I had a bushur 3" turbo back at first with grounding kit, monster flat panel, and I put down a best 270hp at the wheel with 94 octane on an early June mid 60's 80% humidity. Ideal for a max power situation on a Mustang all wheel drive dyno. I sold off the Buschur and went with a different set up not that different still a turbo back nothing else changed. I went back to the dyno for Microsoft X-Box it was a free run. I came in exactly the same 270hp at the wheels I was pretty bummed but the tech told me the following. Before there was a dip in the power curve that was gone smooth all the way to redline. There is a higher rev limit which he never took advantage of and finally it was 98 degrees that day and like 30% humidity. Now the facts are the following low humidity will screw your A/F ratios period also that high heat will kill HP like nothing else so he was still surprised to see the car come in at those numbers so I am going to wait till things cool down again and go in to dyno at about the same conditions as my first run.
Are these numbers being achieved on a first pull or after a couple of runs on the dyno? I did a bone stock 93 octane baseline of my car on May 19th at Altered Atmospheres in MD and pulled 240.4 HP and 251.3 TQ on the first run. Second pull done 6 minutes later was only 230.3 HP and third, 44 seconds later was 235.1 HP. The lower results expectedly were due to significantly richer AFRs. Surprising though was that HP increased and AFR was leaner for the 3rd run done within 9 seconds of run #2. I chose to use the average of these three runs as my baseline to measure future mod improvements.

Bottom line is that unlike gunfights, the first shot is not the most important one. If you want to know what you really have available when driving on the street, first pull numbers are not a good indicator. After a number of successive pulls you will get to numbers that you can consistently repeat. These are the ones that really count.

A return to Altered on the 26th of May after Vishnu Stage Zero + (XEDE w/93 map, Vishnu 3" catback, DP and hi-flo cat) produced consistent runs in the 272 HP range. Final map selected after over 20 pulls produced 272.0 HP and 264.4 TQ, and offered the smoothest curve. Absolutely no knock activity was discernable when monitoring with electronic sensor and headphone equipment even after 20 pulls. AFR averages 11.6:1 @ 4200 RPM dropping to near 11.2 at redline.

(These numbers were acheived on stock boost map prior to release of newly developed boost mapping feature of the XEDE)

Unfortunately the atmospheric differences between the baseline on the 19th and the modified runs on the 26th were significantly different and therefore not very useful in quantifying exact gains when compared to stock. The 19th was a perfect low humidity, clear sky moderate temperature day. The 26th was hot, humid, and rainy. First pull with the stock ECU and 3' turbo back exhaust on the 26th produced same 240HP as the bone stock run of a week earlier.

I intend to go back when atmospherics are similar to the 19th and do another pull to see how significant a player the heat and humidity really are.

Last edited by jfh; Aug 8, 2003 at 04:48 PM.
Reply
Old Aug 9, 2003 | 07:05 AM
  #49  
sir lurks alot's Avatar
Thread Starter
Evolving Member
iTrader: (2)
 
Joined: Aug 2003
Posts: 450
Likes: 0
Thanks for that post. That's whatevrybody wants to see!
Reply
Old Aug 9, 2003 | 01:05 PM
  #50  
jfh's Avatar
jfh
Evolved Member
iTrader: (38)
 
Joined: Feb 2003
Posts: 757
Likes: 0
Originally posted by mayhem


Can't really tell what you're getting at in the post, but it sounds like the guy just bought an SAFC then put it on the dyno to tune, which is exactly what you're supposed to do. But with or without the SAFC, the idea Works put into the A/F maps was to be SAFE. If it's a little fat in the mid section then it's safe. But that's just my opinion.

Reflashed ECU should not require installation of SAFC or return trips to the dyno for additional tuning, That's the main reason people want a reflash in the first place, ...plug-n-play solution that optimizes performance.

If you are going to have to go back to the dyno because you are not satisfied with the reflash, just install something designed to provide access to more mapping paramenters in the first place e.g. UniChip, Xede, Mototronic, etc.

Installing a stand alone SAFC after a reflash is like putting ketchup on a bad cut of beef to make the poor flavor more tollerable..
Reply
Old Aug 9, 2003 | 01:24 PM
  #51  
evo1's Avatar
Evolved Member
 
Joined: Mar 2003
Posts: 908
Likes: 0
From: Sarasota
Originally posted by jfh


Reflashed ECU should not require installation of SAFC or return trips to the dyno for additional tuning, That's the main reason people want a reflash in the first place, ...plug-n-play solution that optimizes performance.

If you are going to have to go back to the dyno because you are not satisfied with the reflash, just install something designed to provide access to more mapping paramenters in the first place e.g. UniChip, Xede, Mototronic, etc.

Installing a stand alone SAFC after a reflash is like putting ketchup on a bad cut of beef to make the poor flavor more tollerable..
I agree w/ u jfh, but most likely since there are NOT many chips, maps, etc. avail. yet for our evo, I've also heard of people attempting to lean out the Works reflash air/fuel settings with an S-AFC, just to extract a tiny bit more power, or have a tiny bit of tuneability on the dyno. Sure, i have no idea why they wouldn't just purchase an Xede w/ software?

Soon (hopefully MUCH sooner than later) the latter chips u mentioned, as well as Ecutech will have custom maps avail for the evo so that we can reflash our ECU on the dyno to our likings ... until then, we wil probably continue to see some wierd things out there ...

As for me ... I'll run an S-AFC and EVC V until I have the ability to make a custom map for my specific vehicle ... not down with mail order generic stuff .... but I respect those who are. Since I've seen a 20 whp varience from stock evo to stock evo, it makes me wonder how much stock ECU settings differ from stock car to stock car as well ... more reason to demand a custom tune.

Last edited by evo1; Aug 9, 2003 at 01:31 PM.
Reply
Old Aug 10, 2003 | 07:53 AM
  #52  
mayhem's Avatar
Evolved Member
iTrader: (9)
 
Joined: Apr 2003
Posts: 1,773
Likes: 0
From: Louisville, KY
Originally posted by jfh


Reflashed ECU should not require installation of SAFC or return trips to the dyno for additional tuning, That's the main reason people want a reflash in the first place, ...plug-n-play solution that optimizes performance.

If you are going to have to go back to the dyno because you are not satisfied with the reflash, just install something designed to provide access to more mapping paramenters in the first place e.g. UniChip, Xede, Mototronic, etc.

Installing a stand alone SAFC after a reflash is like putting ketchup on a bad cut of beef to make the poor flavor more tollerable..
I'm in complete agreance. What I meant was, when you get a SAFC you should go to the dyno, not when a reflash is done. I guess he wanted more complete tuning for HIS vehicle.
Reply
Old Aug 13, 2003 | 07:57 PM
  #53  
Scot's Avatar
Evolved Member
iTrader: (6)
 
Joined: Aug 2001
Posts: 959
Likes: 0
From: SS
bump....

do we have a works reflash dyno graph with a/f ratios yet?
Reply
Old Aug 14, 2003 | 03:11 AM
  #54  
sir lurks alot's Avatar
Thread Starter
Evolving Member
iTrader: (2)
 
Joined: Aug 2003
Posts: 450
Likes: 0
Tomorrow......I installed a bost gauge last night though. It appears to spike at 19psi and then quickly drop to 15-17 psi. Most of the time it sits right on 17psi.
Reply
Old Aug 15, 2003 | 03:42 PM
  #55  
modvp's Avatar
Evolved Member
iTrader: (13)
 
Joined: Nov 2001
Posts: 847
Likes: 0
From: Maryland
Any updates??
Reply
Old Aug 15, 2003 | 04:08 PM
  #56  
Trbo Dad's Avatar
Evolving Member
iTrader: (1)
 
Joined: Mar 2003
Posts: 319
Likes: 0
What's the word???????
Reply
Old Aug 15, 2003 | 06:56 PM
  #57  
Mean TT's Avatar
Evolving Member
 
Joined: Apr 2003
Posts: 259
Likes: 0
From: Dallas, TX
Did you get the results yet, or were you contacted by WORKS lawyers first?
Reply
Old Aug 15, 2003 | 07:04 PM
  #58  
Evulized's Avatar
Evolving Member
iTrader: (1)
 
Joined: May 2003
Posts: 120
Likes: 0
Originally posted by Mean TT
Did you get the results yet, or were you contacted by WORKS lawyers first?
I'll bet David was laughing when he read this one
Reply
Old Aug 15, 2003 | 07:19 PM
  #59  
TomsSound's Avatar
Evolving Member
iTrader: (8)
 
Joined: May 2002
Posts: 174
Likes: 0
Ok first of.. its been a long long day... DC Traffic sucks bad.
I dont see how anyone would want to drive an evo in the DC/Metro Area. This car is not designed to be driven that slowly.. (end of rant)

Ok now what everyone here has been waiting for...
First let me say.. I edited the dyno with Photoshop to conceal real names and to add the mods of each car. Plus Weather for the time was added.
My car (stock) runs really rich. No wonder I have exhaust dust all over my car a few minutes after I wash it.. LOL

Reply
Old Aug 15, 2003 | 08:00 PM
  #60  
Jinu0808's Avatar
Evolving Member
iTrader: (1)
 
Joined: Jul 2003
Posts: 196
Likes: 0
SOrry guys I dont understand what the graph means.
Can someone tell me in words what that graph look like ?
Does this graph say WORKS FLASH is SAFE RELIABLE AND DEFINTALY worth all its money ? ?
Reply



All times are GMT -7. The time now is 12:35 AM.