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No worries, I'm really only bothered when we get quotes copying picture posts.
I am still just prepping the engine bay until the engine gets in. speaking of more pictures. I am quite pleased with how nice this trim and bumper paint worked on the ECUbox and Fusebox.
Also a big thanks to Team and Fickert for helping to acquire a 3.909 r&p
Seems like you’re misunderstanding the first photo Jesse. That’s a straight edge to determine how the exhaust port is positioned relative to the top of the subframe. I also didn’t have the turbo manifold fully removed yet, but only unbolted and positioned to be out of the way. You can pm or email me if you want to discuss it.
I must have been thinking about someone else’s RX8 wrt to grinding off the OE engine mount attachment points.
looks good Minc, the lift table is definitely the way to go there; front or rear. edit: See you have a lift too; my kingdom for a chassis lift …
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Another small update with some topics to look into.
Working on repainting the engine bay.....got sent the wrong paint
Powdercoating a bunch of random brackets.
The front and rear subframes have been removed for repaint/ POR. I am also removing the Renesis engine mount stud where my turbo will be going.
I must replace the camber and toe arms in the rear as the cammed bolts were seized to the sleeves. Huge pain to remove. These arms appear to be the only ones that were not replaced by the original owner.
I must find a lifter pump that will fit in the JDL kit. I should also do more research into the rest of the fuel system. Now may be the time to decide on what I want for the feed and return lines. PTFE AN? Larger hardlines? Manifold/disconnect in stock location?
Is there any part of the evap system that is not needed? I have great access right now.
I should really start a selling thread. At this point I have 2-3 Rx8s worth of parts stored away.
make sure to use nickel anti-seize on all thread joints and the camber bolt cams/internal sleeves. It’s more high heat resistant and thicker than the auto parts store copper anti-seize, which is almost worthless in comparison imo. It will pay off long term as you do maintenance, repairs, etc. I even use it between the front wheel hubs/uprights, between the brake caliper hats/wheel hubs, pretty much any where where I want parts to separate without too much trouble down the road.
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Nice PORing the subframes, the stuff is expensive but very nice. I plan on doing the same once I have everything mocked up and am happy with it.
I am sure you saw in my thread, a 340 pump for lift is a bit too tall, without modification to the pump. I still need to finish this. If you need reference dimensions, look at a Fuelab 494 (dims attached)
For fuel lines, Team's experience with his PTFE lines along with his findings of the Ni/Cu lines I think is a great way to go. A lot of positives imo.
As far a fuel is concerned make sure to only buy E85 compatible stuff including the lines that will connect the pumps to the JDL surge tank/sump. I went with the Walbro 450 F90000267 for my main feed to the engine (just one but can use two if needed) and used the stock fuel pump to lift to the surge tank. I do know of one person who has this setup and it's working. I know the DW 255 92011000 will work to lift to the surge tank. I'm planning on upgrading to this if needed.
I used Redhorse Performance -8 and -6 line 235 series black nylon hose mainly because I bought it from a friend used and got a really good deal.
When considering the fuel system a couple things I learned was soft lines are favorable over hard lines due pulses (that's why pulse dampeners are used) and keep the fuel pressure regulator vacuum line length short. I actually opted not to use a pulse dampener on my setup, we shall see how that works out.
I used Redhorse Performance -8 and -6 line 235 series black nylon hose mainly because I bought it from a friend used and got a really good deal.
Fuel Line Stuff
I think for the lines I plan on doing the Ni/Cu hardlines under the chassis with some anti-vibration mounts. Then convert to PTFE lines in the engine bay at the stock location to connect to the fuel rails. I may also need soft lines to connect the JDL surge tank to the Hardlines.
Perhaps the hardlines will be able to bend on top of the fuel tank fine? Too much vibration from the pump assembly for the hardlines if they are directly mounted?
Pump Stuff
Just for reference Radium had a nice write up on choosing pumps: link
I am a little disappointed with how many vendors fail to list actual details on pumps. Flow/pressure/voltage height? diameters? inlet/outlet?
and for yall to noob check me.
I'll have 2x 1000cc and 2x 2200cc injectors = 6400cc/min flow or 384lph >>> adding in a 10% safety margin puts us at 422lph for injectors
I already have 2x walbro 450lph primary pumps which flow 355lph at 70psi (assuming 20-25psi boost from 40-45psi) >>> 2x = 710 lph for primary pumps
For lifter choice, radium suggests 1/2 of your primary pump flow >>> 355lph at 0psi lifter suggested
Now say the lifter has 355lph flow, but the injectors could max out to 422lph. The surge tank would effectively be slowly drained correct? But in reality we would not be at 100% duty at all times, so the lifter should be at a higher flow under ~85% duty?
JDL suggested a walbro 255lph lifter which would only match 60% injector duty cycle........... I also did not find a 255 that was listed as E85 safe
The 210lph DW pump would only match 50% injector duty cycle
Or am I way off?
Other extras to look into later
-fuel filters / locations
-fuel pressure dampeners
-flex fuel sensor (radium splitflow looks interesting.)
Good stuff for the fuel so far. Sounds like were almost "minc"ing each others fuel setups ha!
On a real note, I just updated my BOM list on my thread. I didn't realize I forgot to add my flex fuel and radium splitflow adapter. Use the p/n's there for reference, already have it setup with the haltech bench testing, if you need the offsets let me know. Note, prices below were with my discount. I think the GM flexfuel sensor is closer to $100. This sensor actually gives you ethanol content as well as fuel temp. Kinda cool.
For the lift pump, I believe I will be able to get mine to fit correctly, I will look at this over the weekend and report back.
For fuel filters, I suggest looking into Deatschwerks, they have some washable SS 10micron filter elements with a neodynium magnet in them and are very reasonably priced. Again check my BOM in my build thread if you'd like. I think I have a really good location for it, which I am hoping to install this weekend for mockup.
I'm looking at getting a 340lph DW lifter pump which should flow 411lph at 0psi which I think would be fine for the 422lph injector overestimate.
Also looking at your suggestions
-8an, 10 micron, 160mm DW In-Line Fuel Filter Kit
Radium damper
Radium Splitflow Flex Fuel
Chevy Flex Fuel sensor
I should add in a diagram part of my original post and draw these systems out. Maybe a google sheet for the BoM.
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Also Fickert, not sure how much you are into modded Assetto Corsa, but I have been collecting all of the Initial D tracks, Shutoko, Initial D cars, Wangan Midnight Cars, Rx8s, and an RxVision. Basically overhauled all of the files for the cars.
Damnit the DW300C, why the hell didn't I think of that pump. Saves 13mm, honestly that'd be enough to get the bend in the hose I think. Hm, I will have to see about modifying my fuelab 494 vs just returning it and buying a DW300C. The Fuelab only cost me $80 though ha.
Don't forget, with a lift pump you can remove the check valve. Fuelab did some testing on the check valve for me on my brushless pumps, unfortunately the numbers were only over the phone not in an email so going from memory here, but it was a gain of roughly 10% in flow.
As for AC, I have it, never played it. I am addicted to ACC though within my league. I just added it to my sig since I saw yours and thought it was a cool idea. But with the swap and the baby coming soon, I'm currently trying to wean myself off of it for the next 6 months or so, you know adulting stuff ha!
you will need at least 8000cc total injector for 500 whp on E85 and I would recommend having more.
like 1000cc P1, 1350cc P2, 2650cc Sec for 10,000cc total if you have an Xcessive LIM or similar 6 injector layout, because it’s better not to be stressing them at the limit yet this combo will provide a well balanced system over the full idle to max loading to max rpm range if the ECU fuel staging limits are set properly.
you could run lower in P1 like 750cc, but if using ID injectors then 1350cc can be run in P1 and still idle well for higher output applications. Which if you only have a four injector setup then 1350cc Pri and 2650 Sec should be considered. Because another member on here recently dyno’d a new turbo setup and was running out of injector at 530 whp on E85. Had plenty of fuel pressure and theoretically had enough injector, but was coming up short at the 8600cc total rating from FIC.
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Adam at REC says my engine is 4th in line to be built. We should expect to have it together in about 4 weeks. It may be time to setup a google spreadsheet for a BOM and cost breakdown.
My brother just got a 3D scanner setup and I have setup a computer in the barn. He won't be back for 2 or so weeks. I partly want to get a scan of the whole chassis before everything goes back into the car. Then scan the individual items like engine, trans, subframe, diff. These would be available to download through google drive links found on the above spreadsheet.(so long as the files dont get too large)
Both subframes are now coated in POR. I am still fighting with some of the suspension bolts that have become one with my uprights. I will have to order new lower arms.
I have the JDL surge-tank kit mostly together. I need to figure out the saddle tank siphon setup. Radium seems to suggest siphoning off of the return line. I remember seeing all of yall discussing the siphon setups in one of the REW threads. Also, the JDL kit is getting rather cluttered. I wish he had found a connector/bulkhead setup instead of the ring lugs.
Next to work on cleaning the oil coolers and straightening out the fins. I will most likely use the Improved racing remote thermostat and filter unit as it has worked well for my other car. Thus I will have to remove and plug the original thermostats from the coolers.
I have the JDL surge-tank kit mostly together. I need to figure out the saddle tank siphon setup. Radium seems to suggest siphoning off of the return line. I remember seeing all of yall discussing the siphon setups in one of the REW threads. Also, the JDL kit is getting rather cluttered. I wish he had found a connector/bulkhead setup instead of the ring lugs.
edit: here’s one with 6-wire prong, which should handle two pumps and the level float
nice guy there at JDL, finally reached and spoke to him by phone. Apparently all my emails were going to his spam/junk box and he wasn’t checking there.
I am still dealing with all of the half assed mazda distributors. I am finding conflicting info for many of the suspension bolts I need. The cam plates I received do not fit any of the cam bolts the Rx8 uses.
I will be working out engine shipping with Adam tomorrow.
Full Race still has no idea when Borgwarner will be filling orders...... I may poke to see what is actually available.
I did a little Siphon+gas experiment. Basically put the DW300C lifter in a quart container. Then plumbed the siphon with its own quart container. Dumped the output to a larger bucket. The result was that the siphon only pulled about half of the quart compared to the pump. Which I believe should be fine for our application. Funny to think of the balance of left hand drive Rx8s being prone to have both the weight of the driver and the fuller side of the gas tank.
Oil coolers have had their fins straightened as best I could. Mainly used dental picks and screw driver picks.
The rest of the random brackets have been powder coated.
That's why the battery and turbo should stay on the right side. I found a better price for my turbo through a friend who is a borg warner dealer and now i'm doing the waiting game. Should have just bought through turblown. I believe they still have the 8374 but are out of the 9180, the last time I checked anyways.
Wouldn't the more full side be the passenger side then since the siphon doesn't move as much fuel as the pump itself?
Since the LIfter will constantly be running, it should just be recycling the driver side fuel and always be pulling the passenger side. So during all of your downtimes it will fill the driver side of the tank.
It would be interesting to check both level sensors when I actually get it running to be sure.
04-25-2023, 07:57 PM
