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  #11  
Old 02-10-2012, 06:18 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

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Originally Posted by DIYguy View Post
So, I guess you finally found a sponsor then. . based on the team name etc.?
I wish. Are you talking about "DC Plasma"?
The car name is because I have spent my life working around high power DC Plasma arc furnaces. Not a very common way to melt things. The furnaces pull up to 60,000 amps at 660V. Temperatures up to 4000F.


We are still open to ANY sponsorship.


Metric

Last edited by John Metric; 02-10-2012 at 06:36 PM.
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  #12  
Old 02-10-2012, 06:35 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

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Originally Posted by Bowser330 View Post
Why is there such a drop in Torque (and thus the HP) after ~3000rpm
Was the amperage pulled back for some reason?
No this was 2000 amp zilla limit accounting for the flat line, unlimited battery pack power allows a single zilla2K-EHV to provide up to 170V to my Warp9's with the Helwig Brush system from Netgain. The taper is just normal fall off for Warp9 at 170V.
Most other dyno sheets you have seen are battery pack limited and can't push that 2000amps out to full 170V applied to motor. The drop off is what I get from a stock Netgain motor.

I will have a new chart with a little more data using the Helwig brushes. I am putting up to 199V on each warp9 now.


Quote:
Originally Posted by Bowser330 View Post
Is it due to the continuous rating of the Zilla? I would have thought the amperage would slowly taper down to the 600 continuous, not just drastically drop like that...if that is indeed the cause...

I was hoping to see the Warp9 peak horsepower to be in the 4000rpm range...we need more peoples dyno's!!! I hope you have started a trend!
I only experienced a zilla limit when I had the two motors in series with only a single zilla. It's around 1800amps and 340V. This chart is for two parallel Warp9's with unlimited battery pack and one zilla to each motor.

The taper is due to the motor emf building up. The pack is not the limit on this dyno chart See the PVI diagram. The zilla 2K sets the top line. Without that amp limit the torque would go up to infinity along the that same line.
Note the Impulse9's from White Zombie data peak at around the same rpm.

Metric
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  #13  
Old 02-11-2012, 09:22 AM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

Quote:
Originally Posted by John Metric View Post
I wish. Are you talking about "DC Plasma"?
The car name is because I have spent my life working around high power DC Plasma arc furnaces. Not a very common way to melt things. The furnaces pull up to 60,000 amps at 660V. Temperatures up to 4000F.


We are still open to ANY sponsorship.


Metric
Hey John,

No, I was talking about "Lonestar EV Racing" I think u mentioned on one of your emails to me. I was assuming/hoping u got a sponsor. I just figured DC Plasma was part of that now. ??

Cheers,
Gary
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  #14  
Old 02-11-2012, 11:32 AM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

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Originally Posted by DIYguy View Post
No, I was talking about "Lonestar EV Racing" I think u mentioned on one of your emails to me. I was assuming/hoping u got a sponsor. I just figured DC Plasma was part of that now. ??
Oh, no that is a private team as well. Being in Texas we decided to name it Lonestar EV Racing. You can friend us on facebook.

Still looking for sponsorship for that as well. We are building a Pro-Street Mustang as the next build.


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  #15  
Old 02-11-2012, 12:16 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

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Originally Posted by John Metric View Post

Some of the main modifications:
Replacement of the engine cradle with a Lincoln Mark VIII rear end and suspension.




Awesome project. Are those the stock cradle mounts on the fire wall? Did you use parts from the stock cradle and the Ford setup to mount it all?
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Old 02-11-2012, 04:23 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

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Awesome project. Are those the stock cradle mounts on the fire wall? Did you use parts from the stock cradle and the Ford setup to mount it all?
I removed the stock Fiero engine cradle and transaxle. It was only rated for about 300Hp motor I figured. I was installing nearly 1500ftlbs of torque.

The Lincoln MarkVIII was also an Independent rear suspension with nearly the same wheel track as the Fiero. And I was very happy to learn it had nearly the same clearance in the frame area.
I ended up cutting off the stock ears on all four corners. I welded up the rear spots to re-inforce them but they were geometrically right in the perfect spot.
The front ears were rotated 90 degrees and extended they fit right in the same spot as the stock engine cradle mounts.
Here is the Ford rear end compared to the original Fiero rear engine cradle.

I have a load of photographs documenting this if you want to see more.

add firestone airbags too.
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  #17  
Old 02-11-2012, 06:01 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

Sure, post em up, I like to see different Fiero mods. I like the idea of the motors in the tank tunnel, originally I was going to put some of my pack in there but I was able to get all my cells in the motor compartment. Your setup would give a lot of battery room above the differential if you mounted the controllers vertically on the firewall, or maybe on the sides under the old vent panels. Not that you need more battery, or the use of the trunk.
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  #18  
Old 02-11-2012, 06:38 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

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Originally Posted by JRP3 View Post
Sure, post em up, I like to see different Fiero mods. I like the idea of the motors in the tank tunnel, originally I was going to put some of my pack in there but I was able to get all my cells in the motor compartment. Your setup would give a lot of battery room above the differential if you mounted the controllers vertically on the firewall, or maybe on the sides under the old vent panels. Not that you need more battery, or the use of the trunk.
Oh, yeah, motors in the "transmission/tank tunnel" free up a huge amount of room. I have absolutely nothing in the front. and yes, the controllers are the only thing in the back.
Here is a picture of the six main welds prior to painting.




I swapped the shock position and the sway bar. But they both fit into the Fiero. This is the right wheel.


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  #19  
Old 02-11-2012, 06:48 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

Some shots of the torque tunnel. This was the old gas tank area. We widened it by one inch on each side. We needed to move the seats out by one inch. The seat stills fits and functions. You hardly notice it.










This is what fills the tunnel. 199V twin Warp9 with Gear Vendors aux overdrive.
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  #20  
Old 02-13-2012, 11:28 PM
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Default Re: DC Plasma - Build Thread - 10Sec Fiero

Thanks for the detailed answer.

How much do you expect the 199V to push the peak power rpm out too?




Quote:
Originally Posted by John Metric View Post
No this was 2000 amp zilla limit accounting for the flat line, unlimited battery pack power allows a single zilla2K-EHV to provide up to 170V to my Warp9's with the Helwig Brush system from Netgain. The taper is just normal fall off for Warp9 at 170V.
Most other dyno sheets you have seen are battery pack limited and can't push that 2000amps out to full 170V applied to motor. The drop off is what I get from a stock Netgain motor.

I will have a new chart with a little more data using the Helwig brushes. I am putting up to 199V on each warp9 now.




I only experienced a zilla limit when I had the two motors in series with only a single zilla. It's around 1800amps and 340V. This chart is for two parallel Warp9's with unlimited battery pack and one zilla to each motor.

The taper is due to the motor emf building up. The pack is not the limit on this dyno chart See the PVI diagram. The zilla 2K sets the top line. Without that amp limit the torque would go up to infinity along the that same line.
Note the Impulse9's from White Zombie data peak at around the same rpm.

Metric
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