John V's STS GTUs build thread
09-05-10, 07:00 PM
#327
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yes congrats! that's very cool!
09-10-10, 07:10 AM
#329
Well it's good to be home. But I wish I was still out there.
The car worked GREAT at the pro. The courses suited the car really well, and I drove well. I should have video figured out in a couple days... right now I'm too tired and need to catch up on some work.
I felt good after the morning of the Pro, but I knew my lead wouldn't last. Ian passed me in the afternoon session, and then Marc passed me on sunday morning. I ended up only 0.5 out of first on a 90 second pair of courses. Very close. We straight timed ST and STX, which is a very good sign for the car.
For Nationals... I drove very well both days. On the first day I made the same (stupid) mistake on both my first two runs. Once I realized that and fixed it, I put down a time that would have been good for third, but I slid the tail along a tight section and ended up +3. So I think the time was valid, but obviously with the cones it didn't help me. On day two, the times were about a second off the fastest guys. Couldn't get the car to turn. I thought the car would work well in the big, broad sweeping turns on that course, but it just pushed everywhere. Frustrating. I tried adding shock to the back and upping the rear pressures, but it didn't do much.
There is still a lot of work to do with the car. I'm planning to do a megasquirt on the car before next year, as well as working a lot on the suspension and trying to learn some different setup tricks with the car. This year was really about gathering data to see if the car can contend. I think it can, so I'm going to stick with it another year.
The car worked GREAT at the pro. The courses suited the car really well, and I drove well. I should have video figured out in a couple days... right now I'm too tired and need to catch up on some work.
I felt good after the morning of the Pro, but I knew my lead wouldn't last. Ian passed me in the afternoon session, and then Marc passed me on sunday morning. I ended up only 0.5 out of first on a 90 second pair of courses. Very close. We straight timed ST and STX, which is a very good sign for the car.
For Nationals... I drove very well both days. On the first day I made the same (stupid) mistake on both my first two runs. Once I realized that and fixed it, I put down a time that would have been good for third, but I slid the tail along a tight section and ended up +3. So I think the time was valid, but obviously with the cones it didn't help me. On day two, the times were about a second off the fastest guys. Couldn't get the car to turn. I thought the car would work well in the big, broad sweeping turns on that course, but it just pushed everywhere. Frustrating. I tried adding shock to the back and upping the rear pressures, but it didn't do much.
There is still a lot of work to do with the car. I'm planning to do a megasquirt on the car before next year, as well as working a lot on the suspension and trying to learn some different setup tricks with the car. This year was really about gathering data to see if the car can contend. I think it can, so I'm going to stick with it another year.
09-11-10, 11:17 PM
#332
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WoW that looked to be a really high speed course on a really big parking lot.
quick question. What did they use to paint the lines of the course? did they use paint or some type of chalk?
I haven't auto-crossed yet but just from watching videos and riding with others I still have a hard time 'Visualizing' the course and the paint helps a ton!
quick question. What did they use to paint the lines of the course? did they use paint or some type of chalk?
I haven't auto-crossed yet but just from watching videos and riding with others I still have a hard time 'Visualizing' the course and the paint helps a ton!
09-12-10, 12:42 PM
#334
WoW that looked to be a really high speed course on a really big parking lot.
quick question. What did they use to paint the lines of the course? did they use paint or some type of chalk?
I haven't auto-crossed yet but just from watching videos and riding with others I still have a hard time 'Visualizing' the course and the paint helps a ton!
quick question. What did they use to paint the lines of the course? did they use paint or some type of chalk?
I haven't auto-crossed yet but just from watching videos and riding with others I still have a hard time 'Visualizing' the course and the paint helps a ton!
They use chalk, like you'd see marking the base paths on a baseball diamond. Mostly it's to help courseworkers see when someone is going off course.
The Megasquirt will give me finer resolution over fuel and timing. The Rtek only gives you 512 RPM increments to tune and while it works OK, it could be better. The trick will be making the 'squirt work with all the factory emissions **** as well as the OMP.
09-12-10, 01:06 PM
#335
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might be worth stepping up to a haltech or something, more outputs
09-13-10, 01:19 PM
#337
The awr adjuster are even worse. They remove two degrees of freedom from the rear arm. And they move the force further off-axis. Not good at all.
I do want to check outgoing your ms. But I'm guessing it doesn't control the S5 OMP or do emissions. I need both.
I do want to check outgoing your ms. But I'm guessing it doesn't control the S5 OMP or do emissions. I need both.
09-13-10, 02:02 PM
#338
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haltech/motec....
09-14-10, 11:26 AM
#340
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I think you can fit a MS in the stock case... You will have to get an ecu and gut it and use the mazda connector and fly wire all of the connections to the ms board....
The MSIII was just released this summer. I think it can do individual cylinder trim (I know not applicable on rotaries, although it would be cool to treat the engine like a 6 cylinder and have individual rotor face fuel trim. Maybe you can be the first to do it ;-))
(Disclaimer: I've never held a MS board in my own hands but they seem small enough.)
09-14-10, 11:43 AM
#341
I'm running an MS3 in my car currently, the only thing that might hinder you from running it in a stock case is the height... we can measure it when I come and show it to you. I'll try and bring an MS3X board too which has a lot more outputs and allows you to run sequential, but I'm not running that yet. (ken has some lying around)
I knew a guy who ran an MS-II in a stock case along with a techedge wideband, so I know it's possible... I'm just worried about the MS3s increased height. I also don't think ken has the OMP worked out yet, but if someone actually needs it, I'm sure he can get it running pretty easily.
09-14-10, 11:51 AM
#343
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09-14-10, 12:45 PM
#344
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I've been looking into designing and making a custom pcb to house a Megasquirt 2 or 3 using the stock ecu case and tyco/amp connector. The issues I'm coming across is the same you mentioned, the s5 omp stepper motor and emissions solenoids. I was thinking of using an amtel microcontroller or something similar to control the emissions separate from the ms using signals derived from it (rpm, load). It would also allow me to shrink down the ms board as it can be custom tailored to the car and not so universal. Unfortunately as I'm terrible with software, its been going pretty slow. Do you think there would be much of a market for a completely pnp Megasquirt for the s5?
.
09-14-10, 03:33 PM
#348
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You mean this one? Besides using a more generic connector with an extra slot, it's not 100% pnp because Megasquirt is not being able to run the emissions equipment and the s5 omp. I believe STS rules require it to be in the stock ecu case too.
09-14-10, 03:54 PM
#350
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Its defiantly more versatile and has a much higher resolution. Plus the Rtek from what I can tell is more or less just remapping the stock ecu parameters. I don't think it would allow for things like spark cut only or removing the vam.
EDIT: Read up on the Rtek. MS allows for wideband inputs to be used whereas Rtek just uses it for logging. MS has a more thorough logging setup and doesn't require palm devices to be tuned. MSIII can also log to an SD card onboard. MS allows for a smoother secondary staging as well as switching things like 6pt and VDI on more than just rpm alone. Rtek cannot do wideband logging and constant atmospheric correction at the same time whereas MS can. MS can also log egt data and may be able to do something with it. I'm still reading into MSIII as I am unfamiliar with it. MSII seems more than applicable though.
EDIT: Read up on the Rtek. MS allows for wideband inputs to be used whereas Rtek just uses it for logging. MS has a more thorough logging setup and doesn't require palm devices to be tuned. MSIII can also log to an SD card onboard. MS allows for a smoother secondary staging as well as switching things like 6pt and VDI on more than just rpm alone. Rtek cannot do wideband logging and constant atmospheric correction at the same time whereas MS can. MS can also log egt data and may be able to do something with it. I'm still reading into MSIII as I am unfamiliar with it. MSII seems more than applicable though.
Last edited by compnut21; 09-14-10 at 04:21 PM.