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5558 Precision Turbo build

Old Dec 26, 2014 | 06:53 PM
  #51  
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On another note, I like the color scheme on the engine.
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Old Jan 5, 2015 | 09:39 AM
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1 turn key hot or cold. This is the cold start.
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Old Jan 5, 2015 | 09:41 AM
  #53  
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Untuned run, normal driving shifting at 3500 rpm. 43mm waste gate making sweet noises.
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Old Jan 5, 2015 | 09:42 AM
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Old Jan 5, 2015 | 09:44 AM
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Old Jan 5, 2015 | 09:45 AM
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Clean sleeper setup.
Dyno coming soon. Blow off valve goes on the silver pipe with the temporary blue coupler.
Progress video.
Attached Thumbnails 5558 Precision Turbo build-turbo-rx8-motor.jpg  

Last edited by DailyDriver2k5; Jan 5, 2015 at 09:49 AM.
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Old Jan 5, 2015 | 10:45 AM
  #57  
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11.5 AFR's at idle? Was that warmed up? Sounds like you have a bit of a hard start on the cranking video as well. Lets see some dyno video and drags trip vids.
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Old Jan 5, 2015 | 11:41 AM
  #58  
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Originally Posted by 9krpmrx8
11.5 AFR's at idle? Was that warmed up? Sounds like you have a bit of a hard start on the cranking video as well. Lets see some dyno video and drags trip vids.
Semi cold idle at 11.5 AFR, goes to 13.0 after 30 sec delay from the Haltech. Still dialing in the cold start, that start was on a base map.
Dyno vids will come after the motor is broken in.

Last edited by DailyDriver2k5; Jan 5, 2015 at 11:53 AM.
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Old Jan 5, 2015 | 08:48 PM
  #59  
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you are running meth right?
sounds good so far. Let's hope you hit your goal
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Old Jan 6, 2015 | 11:54 AM
  #60  
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Originally Posted by yomomspimp06
you are running meth right?
sounds good so far. Let's hope you hit your goal
Yes I am running meth. The car is also built to handle C17 which we will be running on the dyno.
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Old Jan 6, 2015 | 01:54 PM
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I'm still not a fan of the IC placement.... do you plan on venting your hood at all to accommodate it? I just feel like it is susceptible to heat soak where it is now with minimal air flow through it...

Nice build though, can't wait to see it tuned
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Old Jan 6, 2015 | 03:01 PM
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Originally Posted by RotaryMachineRx
I'm still not a fan of the IC placement.... do you plan on venting your hood at all to accommodate it? I just feel like it is susceptible to heat soak where it is now with minimal air flow through it...

Nice build though, can't wait to see it tuned
Thank you RM. My setup is similar to a turbo II setup. I was going for a sleeper setup.

The IC actually uses the stock air tube that feeds air directly from the nose to it. A shroud is being designed to keep the air from rushing over the IC. If this is least efficient , then I will move forward to getting a vented hood.
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Old Jan 6, 2015 | 03:49 PM
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that's why I asked about meth. you're going to want it with that placement. with my shitty intake placement I see 110-122 degree intake temps on a 70 degree day. that skyrockets to 177-240 if sitting at a light. with these 40 degree days I'm seeing 89 degree intake temps while cruising the highway.

Posted From RX8Club.com Android App
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Old Jan 6, 2015 | 05:29 PM
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Yep, that is why I had to fabricate the tray and get it coated. Texas in the summer = crazy IAT's before. That is one reason why I want to see WOT track video or side by side runs of this car.
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Old Jan 7, 2015 | 02:48 PM
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Originally Posted by DailyDriver2k5
Thank you RM. My setup is similar to a turbo II setup. I was going for a sleeper setup.

The IC actually uses the stock air tube that feeds air directly from the nose to it. A shroud is being designed to keep the air from rushing over the IC. If this is least efficient , then I will move forward to getting a vented hood.

IC, this may actually work nicely with a shroud, good thinking; depending on where you live it may be all that is necessary; I know it would probably be enough up here where I am.

If you do go the vented hood route I would try and dig up an old thread by Jeff (MazdaManiac) as he did a similar set up but ran shrouding to the bottom of his intercooler then vented it out through his hood; very similar to the top mount on a stock Subaru STI. I can't remember the name of the thread though.
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Old Feb 10, 2015 | 07:33 AM
  #66  
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Update: Car is running beautifully. 1 key starts hot or cold. Car stays at a nice constant 202 degrees. We were street tuning and got to 7 psi before she leans out. Even with a walbro 255 and ID 1000CC injectors its just not enough to compensate for the volume of air. So I am doing a return style fuel system and a secondary pump next week.

Even as is , the car comes alive at 2500 rpm and pulls pretty good till 5500. Feels funny having torque so low in the spectrum. Can't wait to get the fuel system done so we can finally tune her and get her on the dyno.
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Old Feb 10, 2015 | 11:22 AM
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Watch how you implement that...or you can make things worse
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Old Feb 10, 2015 | 12:25 PM
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That sounds awefull low to be running out of fuel. Before you put in all the money of a return system check your fuel pressure. What g/sec are you pushing at 7 psi?
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Old Feb 10, 2015 | 01:26 PM
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Originally Posted by DailyDriver2k5
Update: Car is running beautifully. 1 key starts hot or cold. Car stays at a nice constant 202 degrees. We were street tuning and got to 7 psi before she leans out. Even with a walbro 255 and ID 1000CC injectors its just not enough to compensate for the volume of air. So I am doing a return style fuel system and a secondary pump next week.
.
Something "ain't right " . Suggest it's to do with scaling/latency of the ID1000s .

You have plenty of fuel pump and plenty of injector to go well past 7psi.
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Old Feb 10, 2015 | 01:29 PM
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Guys, he has and expert builder who knows exactly what he is doing. The guy builds 400HP automatic Renesis's.
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Old Feb 10, 2015 | 01:40 PM
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Yep...there should be enough injector for 500+ HP...so something else is going on.
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Old Feb 12, 2015 | 03:38 PM
  #72  
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Did some googling, and it looks like AFR for methanol is 6.4 or 6.5:1, so we would need more than twice the fuel capacity compared to gasoline? Is it correct to assume this?
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Old Feb 12, 2015 | 05:45 PM
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Yes if he was running straight methanol, but he's not and it's just water injection. That fuel setup should be plenty... I agree with the others it is probably a tuning issue.
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Old Feb 12, 2015 | 08:11 PM
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Or you could read the first post ....
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Old Mar 23, 2015 | 08:29 AM
  #75  
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Update: fuel system came in finally after being back ordered, will be installed this weekend. Also I will be running methanol, when we was street testing the car, no methanol was being used. Car will be able to run ethanol also.

Car was leaning out on a base tune. Not a full tune. Remember we was just testing the car on the street to make sure she didn't overheat, etc.

Should be tuned within the next 2-3 weeks.

Last edited by DailyDriver2k5; Mar 23, 2015 at 08:35 AM.
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