Boosting my RX-8 - RX8Club.com



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Old 02-20-2017, 02:02 PM   #1  
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Boosting my 8

So I'm not new to the 13b renesis but its still some stuff I lack knowledge of. I plan on boosting it but run low boost, give or take 10lbs. I plan on a full rebuild with stronger seals, basic streetport, sx300x3 borg warner turbo. I'm gonna run a C02 freezer kit mounted to the intercooler to keep intake temps down. Cause I know one thing that kills boosted renesis is the seals failing early because of excessice heat from the turbo. I also thought about water meth injection system but would that be an overkill? And has anyone ever used any of these systems on their boosted renesis?
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Old 02-20-2017, 02:21 PM   #2  
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Boosting my RX-8

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Originally Posted by RotardGuy View Post
So I'm not new to the 13b renesis but its still some stuff I lack knowledge of. I plan on boosting it but run low boost, give or take 10lbs. I plan on a full rebuild with stronger seals, basic streetport, sx300x3 borg warner turbo. I'm gonna run a C02 freezer kit mounted to the intercooler to keep intake temps down. Cause I know one thing that kills boosted renesis is the seals failing early because of excessice heat from the turbo. I also thought about water meth injection system but would that be an overkill? And has anyone ever used any of these systems on their boosted renesis?

Why don't you search and find out? Then start your own thread if you have questions. Bumping a thread that you didn't even bother to read isn't going to help you.
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Old 02-20-2017, 02:57 PM   #3  
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Why don't you search and find out? Then start your own thread if you have questions. Bumping a thread that you didn't even bother to read isn't going to help you.
For some reason, it wont let me post my own thread. That's why I did that.
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Old 02-20-2017, 03:39 PM   #4  
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Again, if you had read (big colored stickies at the top of the page), you would know why you could not start a thread. But really you don't need to start a thread, you need to read threads that already exist.
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Old 02-21-2017, 07:34 AM   #5  
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Again, if you had read (big colored stickies at the top of the page), you would know why you could not start a thread. But really you don't need to start a thread, you need to read threads that already exist.
Yeah I have read them but nothing. And I have more than 10 posts and they aren't bs posts. I've also been a member over a few months now. But thanks, I'll try searching again!
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Old 02-21-2017, 09:36 AM   #6  
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You read them but nothing? I highly doubt that.. There is a **** ton of discussion on meth injection and the cryo stuff has been discussed many times as well. And if you under stood the basics of turbocharging an RX-8 (had you read) you would know that the turbo family you are considering would require a lot of planning and customization to fit a Renesis. Not to mention it would be pointless just to run low boost. know what you are getting into.
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Old 02-21-2017, 09:54 AM   #7  
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You read them but nothing? I highly doubt that.. There is a **** ton of discussion on meth injection and the cryo stuff has been discussed many times as well. And if you under stood the basics of turbocharging an RX-8 (had you read) you would know that the turbo family you are considering would require a lot of planning and customization to fit a Renesis. Not to mention it would be pointless just to run low boost. know what you are getting into.
Well I just found them. And of course I know the basics or I wouldn't be asking about a water meth system to see the results of other 8 owners. And for your info, I'm running low boost because it's gonna be a showcar/weekend driver. Not a racecar.
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Old 02-21-2017, 09:56 AM   #8  
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10lbs of boost isnt low on a renny. 9k only runs about 2psi lol
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Old 02-21-2017, 09:59 AM   #9  
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So then why run such a large turbo? And 10psi is not low boost (for an RX-8 anyway) it's average boost. Again, you don't really know what you are getting into, so it's time for you to spend a few weeks reading threads.
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Old 02-21-2017, 10:07 AM   #10  
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So then why run such a large turbo? And 10psi is not low boost (for an RX-8 anyway) it's average boost. Again, you don't really know what you are getting into, so it's time for you to spend a few weeks reading threads.
Dude again, It's a show car/weekend driver. Crowds love big turbos. And of course I'll read more threads since you're no help 😡
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Old 02-21-2017, 10:11 AM   #11  
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9k knows more about boosting an 8 than most people on this board. when he tells you to search its because he did his homework and doesnt like spoon feeding people. an inproperly sized turbo isnt going to make a good driver even if its on the weekends. if its a show car go with a huge top mount (cause you wont see a low mount anyway) and trailer it to the shows
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Old 02-21-2017, 10:21 AM   #12  
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Old 02-21-2017, 10:23 AM   #13  
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Originally Posted by 200.mph View Post
9k knows more about boosting an 8 than most people on this board. when he tells you to search its because he did his homework and doesnt like spoon feeding people. an inproperly sized turbo isnt going to make a good driver even if its on the weekends. if its a show car go with a huge top mount (cause you wont see a low mount anyway) and trailer it to the shows
And who said he didn't? I just said he wasn't no help, and no one here trying to get spoon fed. But if you want to nut hang on 9k. Then be my guest. But of course I'm gonna do my hw, I just thought this page was for helping and not trolling. Guess not! And I was going with a top mount but definitely not trailering it.
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Old 02-21-2017, 10:26 AM   #14  
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"crowds love big turbos". Well there we have it. Your RX-8 will get turbocharged around the same time the RX-9 gets released. And spoon feeding is exactly what you are seeking.
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Old 02-21-2017, 10:31 AM   #15  
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"crowds love big turbos". Well there we have it. Your RX-8 will get turbocharged around the same time the RX-9 gets released. And spoon feeding is exactly what you are seeking.
If you say so, and you probably know all about spoon feeding 😂
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Old 02-21-2017, 10:44 AM   #16  
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In before the lock.


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Old 02-21-2017, 10:47 AM   #17  
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lulz im so glad i clicked this thread
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Old 02-21-2017, 10:48 AM   #18  
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Old 02-21-2017, 11:00 AM   #19  
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crowds love big turbos.
Boosting my RX-8-big_turbo.jpg

Boosting my RX-8-one-big-turbo.jpg
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Old 02-19-2018, 02:21 AM   #20  
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So then why run such a large turbo? And 10psi is not low boost (for an RX-8 anyway) it's average boost. Again, you don't really know what you are getting into, so it's time for you to spend a few weeks reading threads.
So I've been nonchalantly perusing this thread and saw this... Out of curiosity, what would you consider to be low boost? Would 8psi on a Pettit supercharger be what you would call "low boost?" Or is that more in the danger zone of "medium boost?"

And secondly, the lowest boost on a turbo RX8 that I've personally heard of anyone running is 7psi on RotaryMachineRX's car - until I just read 200.mph state above that you're running 2psi. Is he for real, or is he just being sarcastic and I'm being autistic and missing the internet sarcasm..? I mean I am getting a real internet sarcasm vibe here, but I'm really not sure, since I'm well aware of how badly our engines hold up under any significant boost... Sorry if I'm missing the obvious, I just had to ask.
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Old 02-19-2018, 09:53 AM   #21  
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200 was just being 200, he doesn't even own an RX-8. Anything over 10psi on a renny is pushing your luck, low boost would be stock Greddy kit boost which is like 5-7psi IIRC.
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Old 02-19-2018, 12:33 PM   #22  
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I pushed my BNR GReddy up to 14psi for a "brief" unexpected period back in the day.

fun fun
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Old 02-19-2018, 01:15 PM   #23  
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Yeah mine tends to creep up to 13psi or so every once in a while.
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Old 02-19-2018, 02:17 PM   #24  
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YAY S#!tposting!

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Old 02-20-2018, 09:43 PM   #25  
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Originally Posted by 9krpmrx8 View Post
200 was just being 200, he doesn't even own an RX-8. Anything over 10psi on a renny is pushing your luck, low boost would be stock Greddy kit boost which is like 5-7psi IIRC.
OK cool. I'm just not savvy on turbos at all and thought there might be some engine-preserving technique I'd never heard of involving running super-low PSI for your daily driving and then dialing it up when you feel like having some fun on the weekend or something.

I think the ~280-290ish horsepower and ~200ish lb-ft torque granted by the 8psi Pettit setup will keep me perfectly happy, and I'm glad it's basically in the "low boost" range, which translates for me into "low chance of replacing my engine within 10-20k miles" is all.
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