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Definitive Greddy Turbo Fixes - Here they are

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Old 02-17-2008, 01:15 PM
  #376  
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it doesn't hurt, but it isn't much use either. may as well not bother installing it. Who wants to convert a 6 port into a 4 port anyway?
Old 02-17-2008, 04:02 PM
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sounds good then, not needed. and if anything I can always just put it in, thanks guys.
Old 02-17-2008, 04:03 PM
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Hey mysql101 where in Fl are you at?
Old 02-18-2008, 04:41 PM
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The intake blocking plate is GReddy's half-*** way of fixing the problem with the turbo not being able to flow enough air above 6500RPM.
Also, did I get the correct part for fix #2? I followed TurboRX8 and got a 3/16" barb x 1/8MPT. What's the difference between MPT and NPT? And my dog was very interested in the piece when I was taking a picture. She thought it was a treat...
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Old 02-18-2008, 04:48 PM
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Metric Pipe Thread and National Pipe Thread.

NPT is what America uses, at least thats what I was told.
Old 02-18-2008, 04:56 PM
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As long as I use: correct size drill bit, correct tap/die, thread sealant, vacuum hose fits - it will work?
Old 02-18-2008, 04:57 PM
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Yep yep and yep.
Old 02-18-2008, 05:14 PM
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Originally Posted by ChattyRX8
The intake blocking plate is GReddy's half-*** way of fixing the problem with the turbo not being able to flow enough air above 6500RPM.

So is it worth puting in or not ?
Old 02-18-2008, 05:15 PM
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That is up to you.
I never had one.
Old 02-18-2008, 05:15 PM
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And will the car stall above 6500 RPM's ???
Old 02-18-2008, 05:22 PM
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Stall? Why would it stall?
The plate just turns the motor into a 4-port.
If you are using the GReddy supplied harness as it ships with the kit, its already doing that, anyway since it turns off the APV motor.

I guess I should update the first post in this thread since there is so much more information.
Old 02-19-2008, 09:24 AM
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Well the kit i got came with the greddy E-manage Ultimate with a harness that's what I will be using do i need to change anything ?? Help
Old 02-19-2008, 10:01 AM
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whats a APV motor??
also any other changes i should do ???
Old 02-25-2008, 01:35 AM
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did fix#2 and recirculated my bov now my car is able to hold idle really good now and doesnt die out when I rev it but I still have an issue of the car having a hard time starting. It takes a good 5+ cranks to actually get the car started but it struggles to start(I have to hold down the throttle to get it started.) any ideas? fuel pump maybe?
Old 02-25-2008, 01:53 AM
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Holding down the pedal makes it harder to start. Leave the pedal alone.

What are you doing for an intake on the kit? Is it the way it ships?
Original injectors?
Trailing plugs and coils?
Old 02-25-2008, 02:37 AM
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1. using the stock intake that came with the kit

2. ships?

3. yes im using original injectors

4. it cannont be plugs because I just recently changed it to brand new RE9B-T and RE7C-L. So im guessing coils then? because I never had them replaced since I bought the car. It never gave any issues so I had no reason to change it.
Old 02-25-2008, 07:31 AM
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Coils are easy to check. Pop them out and take a look at the top. If you have a whitish circle... throw em in the trash and call mazsport. It will not cost you much more to get a much better set of coils than to replace the stockers.
Old 02-25-2008, 08:04 AM
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Just because they have a circle on the coil doesn't mean its bad. But I agree that upgraded coils are the way to go.
Old 02-25-2008, 09:15 AM
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Odd... I went through 3 sets of stock coils, and everytime they went bad, they had that white circle on the top.
Old 02-25-2008, 02:34 PM
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New coils develop a white circle almost immediately.
The two checks for the coil are with a timing light and a good VOM.
Old 03-11-2008, 09:44 AM
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When doing these fixes, do you have to have the car tuned, or can you just run the stock GReddy tune?

It just seems that everyone is tuning their cars, but I really only want a decent bump in power with great driveability. no tuning for big power.
Old 03-11-2008, 09:50 AM
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power is only half of it. You need to make sure it's tuned properly for your car's individual setup. Otherwise it might do something unexpected and you find yourself dropping $6k on a new engine.
Old 09-24-2008, 05:54 PM
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I have questions

Hello im lookin for the legend by the name of mazda maniac.. i was told you were the man.. Anyway hers my problem.. I grew up around 8 cyclinder v8 ford and chevy motors my entire life, i just traded my 03 cobra convertible in for the rx8 two months ago, so i have no idea really whats going on with this rotary. I bought a brand new motor with zero miles.. i got it and im going to put about a 1000 miles on it without going over 6 rpms by friday so i can put it in the shop to have the greddy kit boost gauge wideband and boost controller installed. I have an agency exhaust with cat delete pipe.. but im not going to put exhaust on if that one at all until after break in at 6 psi.. But I have heard bad things about the cat delete pipe with the e manage ultimate.. that the one i got. What im wondering is what do i need to do first so i can start boostin.. my car is slow..Now since i can change the pistons and that kinda stuff you know what i mean.. what do i do first. i dont wanna cut any corners.. Should i start with fuel?? like pump injectors regulator etc... Then what or what should i do, eventually i wanna get to about 12 psi to 15... but with this turbo i wanna be at like 9 10.. what do i need to do?? please help
Old 09-24-2008, 05:55 PM
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I have questions

Hello im lookin for the legend by the name of mazda maniac.. i was told you were the man.. Anyway hers my problem.. I grew up around 8 cyclinder v8 ford and chevy motors my entire life, i just traded my 03 cobra convertible in for the rx8 two months ago, so i have no idea really whats going on with this rotary. I bought a brand new motor with zero miles.. i got it and im going to put about a 1000 miles on it without going over 6 rpms by friday so i can put it in the shop to have the greddy kit boost gauge wideband and boost controller installed. I have an agency exhaust with cat delete pipe.. but im not going to put exhaust on if that one at all until after break in at 6 psi.. But I have heard bad things about the cat delete pipe with the e manage ultimate.. that the one i got. What im wondering is what do i need to do first so i can start boostin.. my car is slow..Now since i can change the pistons and that kinda stuff you know what i mean.. what do i do first. i dont wanna cut any corners.. Should i start with fuel?? like pump injectors regulator etc... Then what or what should i do, eventually i wanna get to about 12 psi to 15... but with this turbo i wanna be at like 9 10.. what do i need to do?? please help
Old 09-24-2008, 06:33 PM
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^if you run that much psi, the greddy turbo is going to crap immediately....about 9psi is max on the stock greddy, and that's pushing it

also, ditch the emanage ultimate and get the cobb accesport. You will need a different intake though. MazdaManiac can fab one or go to www.mazport.net for a greddy CAI upgrade. Check this out too: www.mazdamaniac.com

the stock fuel system is fine for the greddy turbo kit

this car is not going to be anything like a cobra mustang power wise.....I hope you are not looking for that type of power....because you bought the wrong car man...

Last edited by 05rex8; 09-24-2008 at 06:35 PM.


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