2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Renesis powered FC saying hi from the UK

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Old 01-27-10 | 06:28 AM
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James H's Avatar
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Renesis powered FC saying hi from the UK

Hi guys & girls my name is James & im 22 & from the UK & live in Portsmouth which is right down the south, I did join the forum sometime ago but have been a busy since i starting having problems so decided to under go a bit of a project on my used to be egi....

1989 FC (was an egi)
35k RX8 231 lump & 6 speed manual box
18" Rota alloys
Complete Cusco adjustable coilovers
complete bodykit (shitty replikit)
All major work performed @ Re:Worx
Motech M2r ecu
Complete black interior & vert door cards
detachable rear spoiler on custom made alloy brackets
Front & back strut braces
Complete Hawk pads only done 3k
drift style wing mirrors
modified clear fc3s rear jap lights

Anyway be good to hear back from you lot, James H

p.s yes it def needs a paint job sadly just brought a house so money is a little tight to stretch for a paint job as yet!
Old 01-27-10 | 06:31 AM
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Heres how she started life...

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and a year later on...

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Old 01-27-10 | 08:53 AM
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dude. Pics of motor in car or fail.
Old 01-27-10 | 09:40 AM
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LOL. I have an FC with a Renesis and a shitty replikit. Here's a bunch of pics




....of the body kit.
Old 01-27-10 | 10:29 AM
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Neat...pictures of the engine and some info on how the EFI system was set up would be nice...
Old 01-27-10 | 10:55 AM
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underhood pics and then video of vehicle moving under its own power
Old 01-27-10 | 11:20 AM
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Ha very true, the main thuing about the car & i forget to put a picture of it sorry people....

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.... as for a video of the car moving under its own power i dont have one yet but wont take much to sort one. Has never crossed my mine until now. You guys get alot of fakers or something lol??
Old 01-27-10 | 11:23 AM
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thousands a day. 300hp s4 na's.. 500hp p-port quad turbo 3 rotors.. and on and on.. glad you can deliver. i also rocked mx6 wheels back in the day. that made me smile.
Old 01-27-10 | 12:17 PM
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I see you have converted to a throttle cable and you do not have the Variable Fresh Air Duct. Can you explain how you are controlling the secondary ports, aux ports, and VDI?
Old 01-27-10 | 12:45 PM
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I see now you have said that will make the effort to gte a vid up of the car & engine in action! Ha yer they were on there when i brought her but long gone now.

Yer lost the fly by wire throttle for obvious reasons, Variable Fresh Air Duct what & where would that be? As for the rest of your questions my knowlege is limited for now as im learning but know we are gonna be getting a shift light & modifing it to operate some of the ports to operate when needed but i'll ask my friend for a more detailed answer.
Old 01-27-10 | 12:52 PM
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Very cool. Innovation rocks!
Old 01-27-10 | 12:54 PM
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sick thats the first ive ever seen nice job post up some vids
Old 01-27-10 | 12:57 PM
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Clean work modern technology.How did you get everything to work??
Old 01-27-10 | 01:19 PM
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Ok, so on a stock Rx-8 we have the Sequential Dynamic Air Intake System (S-DAIS). It's like a modified version of the S5 n/a system. The TB is drive-by-wire and has only one butterfly (instead of 3 like the s5). First, only the primary parts are opened because all these other valves are shut. Then the secondary ports open (Secondary Shutter Valve) using a vacuum solenoid . Then the auxiliary ports open (using a motor) and the variable fresh air duct open (vacuum signal is blocked and duct opens). The VFAD shortens the length of the intake pipe before the throttlebody. Finally the VDI valve opens using vacuum, just like the Secondary Shutter Valve, and you are basically shortening the intake runners and possibly using that little plenum which appears to be built into the LIM.





So the question is, how were these systems implemented and controlled on your car? I can see that the variable fresh air duct was deleted. But you still have a couple other systems:



So on the top there is the Rx-8 LIM with the aux port sleeves still installed. You can see the little "mini plenum" cast into the middle there. Then below the manifold and to the left is the VDI valve. In the middle is the Secondary Shutter Valve. On the right is the auxiliary port valve motor.

Did you control all that with the Motec? At what RPMS are they activating? I am especially curious about the aux ports, because they are controlled by a motor from the factory.
Attached Thumbnails Renesis powered FC saying hi from the UK-rx8_intake-manifold.jpg   Renesis powered FC saying hi from the UK-rx8_sdais_1.jpg   Renesis powered FC saying hi from the UK-rx8_sdais_2.jpg  
Old 01-27-10 | 07:27 PM
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Nice build! I like the tailights and wheels. I do have to ask..Why does your battery look old skool? Sorry to sound ignorant!lol
Old 01-27-10 | 07:57 PM
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That's one tiny lil e-fan! How'd you go about mounting it? I'm guessing you moved it all a bit back from stock to get the shifter mounted in the right area?
Old 01-27-10 | 07:59 PM
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car looks like garbage with an unpainted body kit(any car does)

but nice job to whoever swapped the motor...except for the part about the ports not working properly yet.

also you need 1 more cooling fan on that radiator..haha
Old 01-28-10 | 01:57 AM
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go team shake

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nice car good to see a different swap get her painted
Old 03-21-10 | 03:12 PM
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I have an 88 GTX that I want to do a Renesis swap on. I want the revs, and the extra 100 hp that the engine brings. I am a Mazda Tech at a local dealer and have thought about this for a rather long time. Lemme know about the swap kit itself. It's awesome to see it actaully done. Also, if you have any questions abou tthe engine.. I'll try my best to hlep. PM me, or hit me up. Later.
Old 03-22-10 | 12:20 PM
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Edit: Chassis is a GXL... I must have been drinking when I typed that. lol.

A few questions poppe dinto my mind. What are you working out in terms of powersteering, or are you strong arming it...?
Old 03-22-10 | 12:22 PM
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If it were a GTX it would be a japan spec turbo model
Old 03-22-10 | 12:47 PM
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I think I liked it a year ago better...
Look forward to seeing the vid and more progress though...and PAINT
Old 03-22-10 | 12:48 PM
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Great swap man, hopefully you can work out the bugs!
Old 03-22-10 | 03:26 PM
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Hey guys thanks for all you feedback.... she is finally painted yay!!

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Im running a non power steering rack but to honest apart from the occasional parking i prefer it, the power rack was far to light & i sometimes found it hard to gauge where the wheels were but the non paower rack is lovely!
Old 03-22-10 | 10:28 PM
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Nice work, man. Car looks really good.

I see you smoked those amber euro fender lights......those are rare as hell here.

I would want them ***** standing out.

What offset wheels are those? Seem kinda high, but look good matched.

Surprised a lot of people producing that renesis.

john ny



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