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Learning how to build Lotus Seven replicas...together!
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 Post subject: Re: RX-8 based build
PostPosted: October 27, 2021, 12:04 pm 
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Posts: 130
Location: Austin, TX
Miatav8,MstrASE,A&P,F wrote:
R10 is for in-tank use.


Already got some Gates 27093 which meets that spec on the way. And appreciate you pointing out what could have turned into a giant problem down the road.


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 Post subject: Re: RX-8 based build
PostPosted: October 27, 2021, 12:17 pm 
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Glad to help. I try to walk stay on the fine line between snoopy and helpful. :cheers:

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 Post subject: Re: RX-8 based build
PostPosted: November 4, 2021, 1:42 pm 
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Joined: February 23, 2017, 12:45 pm
Posts: 130
Location: Austin, TX
Got the fuel line replaced and brakes almost done. Pedal box is back and the trans tunnel is all sealed up. The starter sticks out past the tunnel so had a make a little bump out to clear the solenoid. The "bump" is held on with 3M panel bond. It's amazing how strong that stuff is. Space is super tight around the gas pedal. Had to modify the pedal for clearance and was a bit worried it might not even fit. I have one bad flare in the brake system I need to redo this weekend and then another job off the check list.

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 Post subject: Re: RX-8 based build
PostPosted: November 4, 2021, 2:09 pm 
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Joined: November 6, 2020, 6:29 pm
Posts: 301
Location: Spring, TX
:cheers:

I need to get busy & get back to work.

Debating between pouring funds into the 13B I have, or spending nearly the same for a Renesis....

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 Post subject: Re: RX-8 based build
PostPosted: November 4, 2021, 2:21 pm 
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Joined: February 23, 2017, 12:45 pm
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Location: Austin, TX
JAMADOR wrote:
:cheers:

I need to get busy & get back to work.

Debating between pouring funds into the 13B I have, or spending nearly the same for a Renesis....


4 port Renesis motors are plentiful and relatively cheap. Also hard to beat 200hp stock. They can be run off a cheap Speeduino ECU. The 6 port motors need a more robust ecu since they have an additional intake runner valve and two more injectors.

Speeduino-
https://www.ebay.com/itm/303707943954

Engine right by you for $1k-
https://jdmkingmotors.com/mazda/engines ... s-ecu.html


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 Post subject: Re: RX-8 based build
PostPosted: November 4, 2021, 2:45 pm 
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Joined: November 6, 2020, 6:29 pm
Posts: 301
Location: Spring, TX
Good to know.
I have a Haltech E6k, not sure if that can run a Renesis.
Also have Forscan, which I've read helps bypass the chip key security.

I have noticed that Renesis are significantly cheaper than N/A RX7 13B.

At minimum, if I'm lucky, mine just needs side seals & springs, intake manifold & TB. Getting it in running shape could end up running about the same as just buying a running Renesis.

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 Post subject: Re: RX-8 based build
PostPosted: November 4, 2021, 4:25 pm 
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Joined: February 23, 2017, 12:45 pm
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Location: Austin, TX
You don't need the key bypass if you are running a standalone(which is what I would do). I can't find when that E6K was last made but found info from 2010 saying it was an old system then and it runs DOS based software.


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 Post subject: Re: RX-8 based build
PostPosted: November 4, 2021, 4:35 pm 
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Joined: November 6, 2020, 6:29 pm
Posts: 301
Location: Spring, TX
banzairx7 wrote:
You don't need the key bypass if you are running a standalone(which is what I would do). I can't find when that E6K was last made but found info from 2010 saying it was an old system then and it runs DOS based software.

Correct, the E6K is DOS based/looking.
The next gen E6X used a windows GUI.

Sounds like I'd be looking for a 4 port Renesis, if I go that route, for the simplicity & not having to figure out the 6 port actuators.

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 Post subject: Re: RX-8 based build
PostPosted: November 4, 2021, 5:39 pm 
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Joined: October 26, 2020, 11:24 am
Posts: 24
Location: Mineral, VA
banzairx7 wrote:
Got the fuel line replaced and brakes almost done. Pedal box is back and the trans tunnel is all sealed up. The starter sticks out past the tunnel so had a make a little bump out to clear the solenoid. The "bump" is held on with 3M panel bond. It's amazing how strong that stuff is. Space is super tight around the gas pedal. Had to modify the pedal for clearance and was a bit worried it might not even fit. I have one bad flare in the brake system I need to redo this weekend and then another job off the check list.


This is one of the next jobs I got facing me. With permission, I'll make use of your install and do the same on mine.

Awesome job, BTW

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 Post subject: Re: RX-8 based build
PostPosted: November 8, 2021, 11:16 am 
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Joined: February 23, 2017, 12:45 pm
Posts: 130
Location: Austin, TX
It lives once again! Got the brakes all sorted, radiator back in, ride height set, gauge cluster mounted(and tach input working), seats mounted, 4 point harnesses in. Took for a ride around the block and ya it's going to be ridiculous. I've done zero tuning and at half throttle in 2nd it was starting to lose traction. I also discovered my size 12 feet are too big and just barely hit the gas and brake at the same time. Going to cut ~5/16" off the side of the brake pedal to give some more room. Hopefully going to hit the dyno in the next week or two and finishing up the body work over the next few weeks.

Also wanted some opinions on painting the aluminum sides of the car. I see a lot of people leave them raw. Would cut a bunch of work off the schedule leaving them raw...

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 Post subject: Re: RX-8 based build
PostPosted: November 8, 2021, 11:21 am 
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A light brush or fish scale finish them to hide the regular dings and dents, and give them a good coat of a protective product.


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 Post subject: Re: RX-8 based build
PostPosted: November 8, 2021, 12:22 pm 
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Joined: November 6, 2020, 6:29 pm
Posts: 301
Location: Spring, TX
:cheers:

When I get to that point, I may haul mine to S Austin to a shop I know there & dyno tune in the off hours.

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 Post subject: Re: RX-8 based build
PostPosted: November 8, 2021, 12:27 pm 
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Joined: February 23, 2017, 12:45 pm
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Location: Austin, TX
I'm using Gearheads Autofab in Pflugerville. He's a good friend and the time will be free. I trade him CAD work for dyno time.


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 Post subject: Re: RX-8 based build
PostPosted: November 8, 2021, 12:55 pm 
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Joined: November 6, 2020, 6:29 pm
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Location: Spring, TX
banzairx7 wrote:
I'm using Gearheads Autofab in Pflugerville. He's a good friend and the time will be free. I trade him CAD work for dyno time.

I'm hoping for a similar deal through a friend of my dad's.
Coincidentally, it's where I met a guy driving a carb>EFI converted 12A rotary Locost
Wish I'd gotten his info & directed him this way.

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 Post subject: Re: RX-8 based build
PostPosted: November 8, 2021, 1:11 pm 
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Joined: February 23, 2017, 12:45 pm
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Location: Austin, TX
I found that guy on instagram! competitionspeedworks

Sent him a message saying I was building a rotary locost and would love to check out his car. His reply was cool... and that was about it. Was kind of hoping to meet up with him. He's only ~15 minutes from me.


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