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Cordycord's epic tube frame build

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Old 04-30-2013, 04:42 PM
  #701  
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Well that's weird. I did test the TPS (at the yellow wire hanging out of the Motec connector) with the key on, and got a nice, linear signal out of it. I have the data written down at home, but I think it produced something like 0.5v to 3.9v (this is before the divider) which is a pretty normal range.

So I know that the TPS itself is working, and that it's wired properly at least as far as that bullet connector. I didn't have a chance to test the signal all the way through to the 10 pin connector (for the new box) by the time we had to wrap up and vacate, but that's a pretty simple connection.
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Old 04-30-2013, 05:17 PM
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Originally Posted by Joe Perez
Well that's weird. I did test the TPS (at the yellow wire hanging out of the Motec connector) with the key on, and got a nice, linear signal out of it. I have the data written down at home, but I think it produced something like 0.5v to 3.9v (this is before the divider) which is a pretty normal range.

So I know that the TPS itself is working, and that it's wired properly at least as far as that bullet connector. I didn't have a chance to test the signal all the way through to the 10 pin connector (for the new box) by the time we had to wrap up and vacate, but that's a pretty simple connection.
As we left the track, we were silently swearing MSD...
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Old 04-30-2013, 05:35 PM
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Originally Posted by cordycord
As we left the track, we were silently swearing MSD...
What sort of trouble was it giving you?

I could hardly believe it when I saw that box sitting there for the first time, but there's no way in hell I'm going to start digging deep into that undocumented maze.

Catfish needs some new hotness in its life:

Attached Thumbnails Cordycord's epic tube frame build-ms3pro.jpg  
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Old 04-30-2013, 07:15 PM
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Originally Posted by Joe Perez
What sort of trouble was it giving you?

I could hardly believe it when I saw that box sitting there for the first time, but there's no way in hell I'm going to start digging deep into that undocumented maze.

Catfish needs some new hotness in its life:

100% agree. The main reason why we went to the 1.6 short nose is that we had a ready and waiting Motec wiring harness made for a 1.6 engine. Had we gone from 1.6 to 1.8 (in a week), it would have meant adapting a stock wiring harness (in a week) in addition to everything else we were doing (in a week). It seemed like the "smart" thing to do at the time.

I've got a MegaSquirt in my office now, and it will be going on a nice clean 1.8 engine. In fact, it will be going into the first production frame for the Catfish, so in essence I've been saving the MSPnP for the real thing...Cordycord's epic tube frame build-img_5922-small-.jpg
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Old 04-30-2013, 07:40 PM
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Originally Posted by cordycord
so in essence I've been saving the MSPnP for the real thing...
MSPnP2, eh? Nice unit.

So I assume that for the production cars you are planning to retain a significant portion of the OEM harness from the donor?
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Old 04-30-2013, 08:52 PM
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Originally Posted by cordycord
That's a picture of the baffle we made just for Laguna Seca. They have some rich neighbors there who have been trying to close down the track since 1978. Really. So you've got a track that generates tens of millions of dollars for the local economy, allowing them to offer services to everyone, and a couple of jackasses with AlGore complex want to ruin it for the rest of us...
Give me addresses, a ski mask, a sharp stick, a roll of duct tape, trash bags, and a shovel. Oh, and a catfish with a trunk to carry...things...
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Old 04-30-2013, 08:57 PM
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Same **** at Lime Rock. The local church has been trying to close it since day 1 (in all fairness they were there first). No racing on sunday & strict sound limits almost every day. My miata BARELY passes and I don't even consider it that loud.
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Old 04-30-2013, 09:00 PM
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If God wasn't a fan of loud, he wouldn't have started the universe with the big bang.
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Old 04-30-2013, 09:47 PM
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Protip: he didn't
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Old 04-30-2013, 10:36 PM
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Protip 1.) Second Law of Thermodynaics says that the likelihood of an organizing event like the creation of the universe happening on it's own without outside intervention is approximately 0%


Protip 2.) It's rude to push atheism in some dude's build thread.
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Old 04-30-2013, 10:43 PM
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Yep

*edit: just to be clear, I was implying that God created it, but without the big bang.

ok ok back on topic lol
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Old 04-30-2013, 11:02 PM
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Ok, ignoring the big bang theory (show included). If He wasn't a fan of loud, he wouldn't have the option of ripping a planet's atmosphere off at the speed of light from a star going supernova. As sound is a function of pressure, it's the highest theoretical "sound" that could exist. At least at standard temp/pressure.

Pretty sure any of the above would violate both MRLS and Lime Rock's sound limits.
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Old 04-30-2013, 11:27 PM
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Originally Posted by czubaka
Ok, ignoring the big bang theory (show included). If He wasn't a fan of loud, he wouldn't have the option of ripping a planet's atmosphere off at the speed of light from a star going supernova. As sound is a function of pressure, it's the highest theoretical "sound" that could exist. At least at standard temp/pressure.

Pretty sure any of the above would violate both MRLS and Lime Rock's sound limits.
We'll all be racing to the whine of electric motors in a few years anyway, and will only be able to hear the wail of a rotary or the massive sound of a Can Am car in fuzzy recordings on the History Channel.

At least with electric we'll have torque.
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Old 04-30-2013, 11:45 PM
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Originally Posted by cordycord
We'll all be racing to the whine of electric motors in a few years anyway,
This is not an entirely bad thing. Have you ever witnessed the driver of a Tesla Roadster punching it off the line from a stoplight?

It is impressive.

And right now, we're still in the Model T era of high-capacity battery technology and polyphase electric drivetrains.
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Old 04-30-2013, 11:54 PM
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Originally Posted by Joe Perez
This is not an entirely bad thing. Have you ever witnessed the driver of a Tesla Roadster punching it off the line from a stoplight?

It is impressive.

And right now, we're still in the Model T era of high-capacity battery technology and polyphase electric drivetrains.
Luvs me some torque, but add to it the chest-thumping sound of combustion and it's intoxicating. Can't wait to go back to Laguna Seca in July for the MotoGP race.
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Old 05-01-2013, 09:10 AM
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Originally Posted by cordycord
Luvs me some torque, but add to it the chest-thumping sound of combustion and it's intoxicating.
According to BMW (among others), that's what speakers are for.
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Old 05-01-2013, 09:12 AM
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Originally Posted by cordycord
We'll all be racing to the whine of electric motors in a few years anyway, and will only be able to hear the wail of a rotary or the massive sound of a Can Am car in fuzzy recordings on the History Channel.

At least with electric we'll have torque.
While it would make me sad for gas engines to disappear in my life, its really the way to go for the masses.

Like the indy 500 needs to do something drastic to be relivant again. Electric/hybrid is the answer. go 500 miles on x amount of fuel, as fast as you can. no rules, whoever has the best system will win. Make the tech to where it can trickle down to road cars again.

Originally Posted by cordycord
Luvs me some torque, but add to it the chest-thumping sound of combustion and it's intoxicating. Can't wait to go back to Laguna Seca in July for the MotoGP race.
the Austin race was good
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Old 05-01-2013, 10:41 AM
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Originally Posted by cordycord
Luvs me some torque, but add to it the chest-thumping sound of combustion and it's intoxicating.
Yeah, that's one bad thing.

The demonic whine of a massive PWM-based inverter driving a really high RPM brushless motor into a gear-reduction box when you really hammer on it ain't bad, though.
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Old 05-01-2013, 10:49 AM
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Originally Posted by Joe Perez
Yeah, that's one bad thing.

The demonic whine of a massive PWM-based inverter driving a really high RPM brushless motor into a gear-reduction box when you really hammer on it ain't bad, though.
I am picturing you with white tape holding your glasses together.
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Old 05-01-2013, 10:52 AM
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spot on.
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