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Greddy Turbo System For AT's!!!

Old Jun 9, 2006 | 06:27 AM
  #1  
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Cool Greddy Turbo System For AT's!!!

The Site http://www2u.biglobe.ne.jp/~fam/mnt/

The pictuers












Now the question is can someone please translate what they are saying on that site? If this worked out ok I would love to hear pppppssssssssttttt!
on my 8 too!
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Old Jun 9, 2006 | 07:13 AM
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I used a website translator--they don't go into to much detail about specs or performance just talking about the install. So you aren't missing too much from the pics.
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Old Jun 9, 2006 | 05:40 PM
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Hey Guys, Just FYI we have a couple of A/T RX-8's running around with the Interceptor-X EMS on them. One customer SPRGRN is having good success with his N/A car and there is another car in south Florida with a turbo kit/At I have been giving support to. It can be done, if anyone is ready to feel the torque that comes with boost let me know! Scott
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Old Jun 9, 2006 | 06:57 PM
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Yeah, there really isn't any reason the Greddy turbo kit can't be installed on the AT.
You would need to address the E-Manage wiring to take into account the missing P2s and go from there.
Other than those two wires, there are no differences in the PCM wiring loom that matter.
You can actually see the missing MT connector in pic #4 above.

Keep in mind that because of this, the AT does NOT have as much fuel available as the MT, so it cannot run as much boost on the OEM EFI.
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Old Jun 9, 2006 | 09:44 PM
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Right. What do you think the HP gains are?
Thanks,
-Gilbert
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Old Jun 10, 2006 | 08:20 AM
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Well, since you would be limited to 5 PSI or less, I'd say 20 to 40 HP, depending on tuning.
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Old Jun 10, 2006 | 02:13 PM
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Not too bad of HP numbers. Could have been worst. I think I'll go with Greddy for the time being till a good SC come out.
Thanks for the info MM
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Old Jun 18, 2006 | 07:39 AM
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Originally Posted by MazdaManiac
Well, since you would be limited to 5 PSI or less, I'd say 20 to 40 HP, depending on tuning.

20-40?!

thats nothing! That would only put use at the same level as a stock MT, correct? Or maybe a few horses over?

Or am i seeing this wrong?
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Old Jun 18, 2006 | 09:02 AM
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If its any indication...the guy that boosted his A/T with the greddy kit here in the states was hitting 60 in the high 5 low 6 second range---which is close to a 2 second improvement. It would make it slightly faster than a stock M/T--with more torque though.
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Old Jun 18, 2006 | 10:21 AM
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Originally Posted by MazdaManiac
Well, since you would be limited to 5 PSI or less, I'd say 20 to 40 HP, depending on tuning.
Unless you spend a couple hundred on injectors.
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Old Jun 18, 2006 | 03:17 PM
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^ Correct.

My estimate is conservative based on past experience.
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Old Jun 26, 2006 | 12:21 AM
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So your saying more or less HP???
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Old Jun 26, 2006 | 02:54 AM
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Originally Posted by DOMINION
So your saying more or less HP???
More or less than what?
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Old Jun 26, 2006 | 08:54 PM
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Wow, For only 40 hp I'd rather trade for a manual
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Old Jun 27, 2006 | 03:57 PM
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Originally Posted by SlayerRX8
Wow, For only 40 hp I'd rather trade for a manual
it's only 40hp due to lack of fuel. upgrade that for very little $ and you can easily go higher.

Besides, it's not all about peak horsepower. A turbo torque curve (particularly a fast spooling one like Greddy's) would completely change the car's acceleration capabilities. With a bit of tuning you could easily post up a better time/trap speed than a stock 6MT.
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Old Jun 28, 2006 | 01:40 PM
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All I know is I need to start moding asap!
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Old Jun 28, 2006 | 02:16 PM
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Yeah. Only 17 weeks to SEMA and 10 weeks to HIN.
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Old Jun 28, 2006 | 02:36 PM
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so are you talking about getting larger secondary injectors ?
That will supply enough fuel for more boost? over the 5psi or so.
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Old Jun 28, 2006 | 04:08 PM
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Even with only +40 peak HP, the difference in acceleration would be pretty big. There would be a sizeable gain across the entire rev range, starting at ~3500RPM. Even when I'm only boosting at 5psi, the increased torque is dramatic.
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Old Jun 29, 2006 | 04:42 PM
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Okay...I've thought about it more, and wonder if you could get to 10 psi with better injectors. If you would need a couple other parts, what do you think they would be? What sort of numbers would you guys expect at 10psi? (Especially mazsport Scott and MazdaManiac)
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Old Jun 30, 2006 | 08:41 AM
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Originally Posted by MadDog
Even with only +40 peak HP, the difference in acceleration would be pretty big. There would be a sizeable gain across the entire rev range, starting at ~3500RPM. Even when I'm only boosting at 5psi, the increased torque is dramatic.
Yup. Plus look at the gains on a port job on a 13B RE.





I have hope
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Old Jun 30, 2006 | 09:21 AM
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Is that just a port job or port job and turbo? (I hope its just a port job)
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Old Jun 30, 2006 | 09:43 AM
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Originally Posted by SlayerRX8
Okay...I've thought about it more, and wonder if you could get to 10 psi with better injectors. If you would need a couple other parts, what do you think they would be? What sort of numbers would you guys expect at 10psi? (Especially mazsport Scott and MazdaManiac)
2nd oil cooler for sure, I'd do it anyway regardless of psi. Tranny cooler would be nice (and would allow you to upgrade the radiator if you wanted). I don't think you'd need anything extra. As far as I know, the fuel systems are the same, with the exception of the injectors.

10psi should give you similar numbers to what a 6port is making at 7200-7500rpm, could be less, could be more. The intake ports are a little different on the 2, and I don't know how much the 4 port can flow. Get crazy and do some intake porting, then go for big #'s . There's plenty of room on the intake side for some major work.
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Old Jul 1, 2006 | 12:06 PM
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Hmmmm...

This all sounds very promising. It looks like the AT can be made fast
However, it sounds to me like it will be expensive to do porting, get the necessesary cooling, get better injectors, get the GReddy, and have all of that installed.

Would it be cheaper to try to get an MT instead and get the GReddy with that?

I know, I'm full of questions. But I'm trying to learn. And speaking of learning, I have some research to do on porting now.
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Old Jul 1, 2006 | 01:42 PM
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Originally Posted by SlayerRX8
Would it be cheaper to try to get an MT instead and get the GReddy with that?

Not for me. I still owe approx. $13k, have 62k miles, and the trade in value is in the toilet. I'd be looking at probably a -$12-13k deficit on a very cheap MT. Then $4-6k for the turbo installed and maybe tuned. I'm keeping this car for a long time, just to get my money's worth out of it. If I was going to throw an additional $15k+ at a faster car I'd buy something else altogether.
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