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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Fri Nov 24, 2017 11:34 pm 
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Whoa! Score! Will the rack controller be able to run as a stand-alone piece or will you have to fiddle code and fake things to make it work?

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Jeremy N.
1964 Impala Convertible
1972 Pontiac Lemans
2016 Subaru Impreza


Sat Mar 18, 2006 7:40 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Fri Nov 24, 2017 11:37 pm 
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Posts: 3740
Location: Central NY
Should be able to run it standalone, just needs engine RPM over CAN and some initial startup messages sent out to turn the module on.

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Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Fri Nov 24, 2017 11:39 pm 
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Rad. Are you going to run a stand-alone Ecu? Or some type of factory one?

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Jeremy N.
1964 Impala Convertible
1972 Pontiac Lemans
2016 Subaru Impreza


Sat Mar 18, 2006 7:40 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Fri Nov 24, 2017 11:42 pm 
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Location: Central NY
I'll be using the factory RX7 S5 ECU, since it's the easiest and cheapest method right now.

I'll just slap a converter in for the CAN message stuff.

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Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Wed Dec 20, 2017 1:53 am 
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Location: Boerne, TX
Badass! I enjoy seeing this come together

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-Ryan
1989 R32.4 Nissan Skyline GTS-T 4dr Ls/turbo/6spd
1999 Ford F350 7.3l diesel
1971 Dodge Demon
02 Montero full size
1995 s14.5 rhd 240sx 1jz gt35 w58
1 rhd s13 4 regular s13
02 330ci
64 barracuda


Sun Nov 01, 2009 8:39 pm
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Tue Jan 30, 2018 10:55 pm 
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Posts: 3740
Location: Central NY
I've got a 2000 Nissan Pathfinder front axle coming in, to snag the shorty center shaft from.

The plan is to stuff it into the Maxima axle, to get a shorter axle and therefore a narrower track width.

_________________
Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Wed Jan 31, 2018 8:59 am 
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Do you ever worry about how many custom parts will be on this? So when things wear out/break it will be labor intensive to repair? :)

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Jeremy N.
1964 Impala Convertible
1972 Pontiac Lemans
2016 Subaru Impreza


Sat Mar 18, 2006 7:40 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Wed Jan 31, 2018 9:51 am 
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Posts: 3740
Location: Central NY
Sometimes, but I have faith in the build log. :mrgreen:

Although, I sometimes do wonder if I'll remember it all the moment when I need it.
Case in point, buying the replacement starter for the truck earlier in the month.
Almost got the one for the donor engine instead of the one that fit the transmission. :roll:

I'll probably put together a spreadsheet/list of the major stuff like brakes and tie rod ends, wheel bearings, etc, that I can keep in the glovebox.

I'm doing the mix+match axle thing to avoid having custom machined or custom welded shafts.
Should be as simple as taking the boots off, pulling out the center shafts, and swapping around.
It's like Lego, but more cursing and less foot trauma. :P

_________________
Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Tue Feb 27, 2018 1:34 am 
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Rank: HRCS OG
Posts: 3740
Location: Central NY
CV shaft stuff is waiting on some more research before I can dump it all together here.

In the meantime:

Image

Nissan to the left of me, Mazda to the right, and here I am, stuck with an idea to use.

RHD Mazda RX-8 steering rack, and the Nissan Skyline RWS rack from Japan.
Now I just need to get some control modules.

_________________
Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Tue Feb 27, 2018 9:26 am 
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Posts: 7807
Location: MA
I'm going to be really impressed when you get an electric steering rack to work properly in the go cart. I wouldn't even know where to start.

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Jeremy N.
1964 Impala Convertible
1972 Pontiac Lemans
2016 Subaru Impreza


Sat Mar 18, 2006 7:40 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Tue Feb 27, 2018 5:47 pm 
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Posts: 3740
Location: Central NY
Here's the scary part. I don't know either.
It's all seat of pants.
The rear suspension geometry isn't even a sketch on paper right now, and I'm not even sure if I'll do multilink with toe arms or double wishbone with toe arms.

Front should be easier to figure out I hope.

_________________
Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Tue Mar 13, 2018 1:55 pm 
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Rank: HRCS OG
Posts: 3740
Location: Central NY
Scooped up an RX-8 power steering control module on ebay Friday while they had their 20% site-wide coupon going.

Then found out on Saturday that the local pull-a-part was doing their monthly bucket sale, and had an RX-8 in the yard.
Anything that will fit inside the bucket, not tip over, and not reach over the counter, for $30 a bucket.

Got another steering module, most of an RX-8 front body harness+under hood fuse block, the electric smog pump, and a handful of nuts/bolts.

Also got a set of Fiero popup headlight assemblies, and an 03 Montero Sport cruise control module and actuator. Cruise control baby!

In all, 2 buckets because the headlights were a bucket each.

Still have to snag the hood for the popup covers and the fiberglass that surrounds them, that may be Saturday.
I'm also going to grab the hood stay and possibly the latches, because why not, right?

_________________
Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Wed Mar 14, 2018 2:48 am 
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Rank: HRCS OG
Posts: 3740
Location: Central NY
The eBay special RX-8 power steering module came in Tuesday. Now I have to bench wire it at some point and get some CAN messages bounced at it.

I ended up getting an ABS pump and accumulator for a 2012 Prius, and am in the process of getting a Buick Grand National master cylinder that I can pair with it for full electrohydraulic boosted brakes in a miniscule space package.

The Prius pump/accumulator goes for under $60 used, so it's the ideal replacement for the $500 or more, 30+ year old, and discontinued Buick pump module.


Similar electric boost setups retail for ~$1200 on Speedway Motors, so if I can do the same for $200 I'll be happy.


Wed Jun 24, 2009 12:21 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Wed Mar 14, 2018 8:11 am 
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Posts: 7807
Location: MA
Great score at the junkyard! Also - what kind of wheel speed sensors will you be using for this project? Will you do 4 wheel ABS?

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Jeremy N.
1964 Impala Convertible
1972 Pontiac Lemans
2016 Subaru Impreza


Sat Mar 18, 2006 7:40 am
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 Post subject: Re: The goes-way-too-f#$king-fast-mobile
PostPosted: Wed Mar 14, 2018 9:26 am 
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Rank: HRCS OG
Posts: 3740
Location: Central NY
I'll be using the stock Nissan gearbox sensor for speed.

No on the ABS.
I don't like ABS.
I can tolerate it if it's tuned well and stays out of my face, and I recognize it's lead to DSC/TC systems which I am ok with.

ABS just seems to go a step too far. Then again, I learned to drive without it.

_________________
Walt
06 RX-8 Shinka
91 3000GT VR4
01 Tibb
Some people never have anything except ideas. Go do it.
Emissions & fuel economy haven't exactly been areas of strength for past rotary power plants, but absolutely no one with a soul has ever cared.


Wed Jun 24, 2009 12:21 am
 Profile  
 
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