Ian's 99 post-TB screw re-rebuild. - Page 23 - Miata Turbo Forum -Boost cars, acquire cats.

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Old 11-13-2015, 12:38 PM   #441
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Then you use an enclosed trailer and camp in that
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Old 11-13-2015, 09:37 PM   #442
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Camping in the enclosed trailer is only marginally better than a tent. It's still hot/cold, noisy, uncomfortable, and lacks bathrooms.

So shortly before lunch the car suddenly went into massive understeer in turn 3. I managed to keep it on the track, pitted, and found this:





And of course, this is the first track day in a couple years I didn't bring the Rivals to. AIM tire had a single 225/45R15 RR in stock, but I decided I didn't want to replace just one, so that was the end of the day.

--Ian
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Ian's 99 post-TB screw re-rebuild.-cord-rr-1.jpg   Ian's 99 post-TB screw re-rebuild.-cord-rr-2.jpg   Ian's 99 post-TB screw re-rebuild.-cord-rr-3.jpg  
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Old 11-13-2015, 09:42 PM   #443
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Has trailer. Still doesn't bring spare tires.

Thunderhill has some nice bathrooms. And private showers.
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Old 11-14-2015, 02:42 AM   #444
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Yeah, maybe I shoulda brought the Rivals with me. OTOH, they'd have been a serious letdown after running around on 1.4G RRs all day.

If I needed any more confirmation that the car is making a lot more power, here it is. I've never needed 6th at Thunderhill before!



--Ian
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Old 11-14-2015, 08:31 PM   #445
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When you get the chance could you scope the voltage between the 2 abs sensors when they are connected to the abs computer. I know its a - to + signal when they are open but I'm not sure about when one side is grounded. My vr conditioner for traction control is 0 crossing so if the signal is 0 to + I might have issues.
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Old 11-14-2015, 10:41 PM   #446
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OK, next time I have it up in the air I'll see what the scope says. Too bad I didn't see this earlier -- I had it up on the quickjacks swapping the tires and brakes.

Speaking of brakes, apparently the rotors are done -- cracks going all the way to the inner edge. 4 days on them.




--Ian
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Old 11-14-2015, 10:41 PM   #447
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Hm. mt.net is double-posting again.

--Ian
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Old 11-22-2015, 05:51 AM   #448
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So the track day finished off the rotors and tires. Fortunately, the tire fairy showed up yesterday in her brown truck:



I also stopped by TSE on my way into work last week and picked up some more rotors, $32 each is cheap! Spent some time Saturday afternoon putting them on the hats:



First time I've safety-wired something (well, other than a vacuum line), I *think* did it right...

Also spent some time playing with another toy. I have a DL1 data logger, which is what generates the track maps with speeds/accels/etc on them. It has a bunch of analog inputs, and when I first got it (4 or 5 years ago) I embarked on wiring up those inputs to various sensors on the car. That wiring was all in the Hydra adapter harness, so it went away when I put the MS3 in the car. I thought about redoing it with the MS3 adapter harness, but then I realized it had a serial port for digital input, and Race Technology sells a generic programmable can-bus-to-serial adapter.



It's not very interesting to look at, it's basically a small micro controller embedded in plastic with lots of connectors on it. Three db9s, CAN in, serial in, serial out. The serial out goes to the DL1, the serial in is for programming it, and the CAN in gets adapted to the CAN lines on the MS3.

The DL1 (I have a mark 2) has 16 channels of serial data input, with one of them apparently reserved for a lap beacon. The other 15 are configurable to arbitrary CAN addresses, and Race Technology supplied a config file set up to use some of the values out of the MS3 CAN dash broadcasting config. TK and I played with that one for a while, but eventually decided it made more sense to just use the other CAN broadcasting setup in 1.4.0 and rewrite the config file to have the data channels I was actually interested in.

I doubt there's anyone else out there using this exact config, but just in case, there's the config I wound up with:



The setup is a bit non-intuitive. The DL1 & analysis software have the input units hard-coded, so you need to set up the scaling factors in the converter to turn the MS3's water temperature in F (why is it in F? why why why?) into C. Aux 1 through 4 are knock input, knock retard, boost duty, and boost target (no pre-made config variables for them in the DL1), and "nitrous" is the first four bytes of the digital "ports" CAN word. The plan is to hook up the TC status light output from the RaceLogic to a spare digital input on the MS3 so that I can log when the TC enables.

TK has been building a dash display using a CAN chip, an Arduino, and a cheap LCD display, which was pretty useful for debugging the conversion factors in the converter.

Anyway, yes, I could log all this stuff in the MS3 (if I put a RT clock in it so that the data files had useful timestamps on them), but having it in the same log as the GPS & accelerometer data is nice.

--Ian
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Ian's 99 post-TB screw re-rebuild.-nov-rr.jpg   Ian's 99 post-TB screw re-rebuild.-safety-wire-rotor.jpg   Ian's 99 post-TB screw re-rebuild.-can-bus-dl1.jpg   Ian's 99 post-TB screw re-rebuild.-can-adapter-config.mid.png  
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Old 11-22-2015, 11:10 AM   #449
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Very cool!
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Old 11-24-2015, 04:47 AM   #450
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Quote:
Originally Posted by codrus View Post
TK has been building a dash display using a CAN chip, an Arduino, and a cheap LCD display, which was pretty useful for debugging the conversion factors in the converter.


Demo by a professional driver on a closed course.

It doesn't have any fancy rendered dials, but it packs a lot of info into less space than two 52mm gauges. It'll fit in the left half of the DIN slot over the radio, leaving room for plenty of switches and ***** on the right.
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Old 11-24-2015, 08:45 AM   #451
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In for parts list and github link
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Old 11-24-2015, 09:37 AM   #452
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+1
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Old 11-24-2015, 12:57 PM   #453
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Programmable outputs for warning lights?

If so, do want. How's the visibility in direct sunlight?
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Old 11-24-2015, 01:31 PM   #454
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Quote:
Originally Posted by turbokitten View Post


Demo by a professional driver on a closed course.

It doesn't have any fancy rendered dials, but it packs a lot of info into less space than two 52mm gauges. It'll fit in the left half of the DIN slot over the radio, leaving room for plenty of switches and ***** on the right.
So much want. I really like the idea of utilizing this sort of hardware to create a display that is compact.
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Old 11-24-2015, 08:18 PM   #455
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Need some rotors contact information for tsc please?
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Old 11-24-2015, 11:45 PM   #456
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Quote:
Originally Posted by HHammerly View Post
Need some rotors contact information for tsc please?
Trackspeed Engineering

--Ian
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Old 12-01-2015, 12:56 AM   #457
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New toy arrived at the freight depot today:





Bend-Pak HD9-ST with a pair of roller jacks. The garage at the new house isn't quite done so I won't be putting it together for a few weeks. More photos then.

--Ian
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Old 12-01-2015, 12:56 AM   #458
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New toy arrived at the freight depot today:





Bend-Pak HD9-ST with a pair of roller jacks. The garage at the new house isn't quite done so I won't be putting it together for a few weeks. More photos then.

--Ian
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Old 12-01-2015, 01:44 AM   #459
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Old 12-01-2015, 04:14 AM   #460
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