Callaway email and phone comments for a MAZDASPEED

[II-Savy]

First here is an email I got from Callaway (Scott Rawling):

"I am sorry that I am unable to take your technical questions directly. Callaway is under a contractual agreement with Mazda that requires for all technical advisement to be handled through their 1-800-222-5500 hotline. Please contact a representative at the hotline to discuss.

Ok not a problem. We all know Mazda isn't going to tell us dick. So I called him directly and asked him about compressure surge or/and the fact that it seems air is going back to the turbo and trying to spin it backward. I told him is sounded unusual and if this was evidence that in the future the turbo would screw up if this continued. Scott stated this was NOT, I repeat NOT compressure surge and it was NOT trying to spin the turbo backward. That's all I got from him because of the "contract" crap he stated in the email.

Thoughts?

[jersey_emt]

Interesting...

If it's not compressor surge, then why would venting the air better get rid of the sound (like 505zoom did)?

[II-Savy]

Good point and I have no idea. He was very specific of the answers and I was very sure to ask him exactly.

[rocketspeed]

I've got an email in to another fellow over there, waiting for a response.

[Delivery_Guy]

That is also what Ion Performance has been saying too. For whatever that is worth.

[II-Savy]

I'm thinking Mazda would not be making that into the car. Cause even the stock cars are doing it but you just don't hear it....ya know?

[rocketspeed]

Originally posted by jersey_emt
Interesting...

If it's not compressor surge, then why would venting the air better get rid of the sound (like 505zoom did)?

It could be that Ionperformance is right and the turkey noise is resonation in the intake plumbing. Venting it would relieve pressure and decrease the amount of resonation.

[servoeyes]

Listen...it's perfectly viable that's it's compressor surge. But it will not harm the car at stock boost levels. I'm not sure what else the problem could be beyond compressor surge. IF people are still having it with hardpipes, then it may be the specific design of the piping...because it has been noted that people with hardpipes and one BOV are not having this problem. Dunno...it sucks that Callaway can't help anyone with this stuff. I would imagine that they wouldn't want their name attached to a product with problems...

[Notorious]

It is compressor surge. No doubt. Listen to any other car with compressor surge. IT SOUNDS EXACTLY LIKE OURS. Mazda has admitted at the dealership that it is compressor surge. At Sevenstock one of the relation reps SAID that it is compressor surge but its not enough to harm to turbo. He also said that if anything goes wrong that i why we have a warranty and they will stand behind it.

[Wiggles6983]

Originally posted by Notorious
He also said that if anything goes wrong that i why we have a warranty and they will stand behind it.

But the warranty only lasts for 4 years or so, I personally plan on keeping my car longer then that.

[Notorious]

True, but as far as Mazda is concerned, its not there problem. They just built the thing to last the 4 years, and reliability on this car has been less than stellar so far.

[mazdadan]

You want to hear compressor surge.....listen to a turbo diesel. 99.9% of them don't have a BOV and they last from 100-300K miles. I'm sure that if i'm running 26psi with no BOV, that the Callaway engineered unit in the MSP will be just fine.

[yashooa]

Originally posted by Notorious
True, but as far as Mazda is concerned, its not there problem. They just built the thing to last the 4 years, and reliability on this car has been less than stellar so far.

I have over 25k miles on my car almost completely at 12PSI and have yet to have any kind of problem other than the clunk.
Mostly I just have a fun little car with some good pull, great handling and good gas milage and since I'm old with a good a record, cheap insurance to boot.
I for one am completely satisfied. Eventually I will add a new IC, an FCD, and an exhaust. I also have the 75k mile warranty which I will let expire before I mod my car any further.
I plan on keeping the car for a long time and so far it looks to be very able to run well over 100k miles.

[boostaddict]

Except that you won't get surge on a diesel since they have no throttle plate.



QUOTE]Originally posted by mazdadan
You want to hear compressor surge.....listen to a turbo diesel. 99.9% of them don't have a BOV and they last from 100-300K miles. I'm sure that if i'm running 26psi with no BOV, that the Callaway engineered unit in the MSP will be just fine. [/QUOTE]

[Notorious]

Originally posted by yashooa
I have over 25k miles on my car almost completely at 12PSI and have yet to have any kind of problem other than the clunk.
Mostly I just have a fun little car with some good pull, great handling and good gas milage and since I'm old with a good a record, cheap insurance to boot.
I for one am completely satisfied. Eventually I will add a new IC, an FCD, and an exhaust. I also have the 75k mile warranty which I will let expire before I mod my car any further.
I plan on keeping the car for a long time and so far it looks to be very able to run well over 100k miles.

I'm glad your getting good luck with your car. You pretty much name it i had a problem with it. Hesistation, clunk, front struts, brake and abs problems, airbags, exhaust, turbo, clutch, o2 sensor, and belt. Brake still aren't fixed either. They grind like crazy even though I have plenty of pad. Plus its real fun to slowing down only to have abs all of the sudden kick in. Maybe I'm just having bad luck with the car.

[mazdadan]

Originally posted by boostaddict
Except that you won't get surge on a diesel since they have no throttle plate.

True. You mainly see it on Diesels that are highly modified or towing a heavy load. But when they surge, they scream :)

[boostisgood]

I got the same responce from SCott, when I spoke with him regarding the Hesitation issue.

Ok, with that said, I have a call into some of my contacts DIRECTLY at Garrett. I want to know the lifespan of the GT series turbos, and if this noise is associatied with it. I will let you all know when I get the info. :D

[YellowSpeed1229]

please do craig.... that would be nice...i went o mazda the otehr day and asked them a few "simple" (so i thoght) questions. and they had no idea about the turbos.. parts, service.. no one... bastards

[kwiktsi]

Guys, no offense- but you are reading too deep into it. Even if it is surge when you lift off the throttle, it is no where near enough to cause damage. Also, you want the car to last well beyond the four years of the warranty yet most of you are modding it? Anything you mod, you are taking the chance at decreased lifespan, decreased reliability, etc.. If you want lifetime reliability- leave the car alone and drive it- if you want to play with it, turn the boost up, etc. you kind of take the good with the bad.

The reason Callaway says it is not compressor surge is because he probably thought you were talking about something else. Turbos will "compressor surge" under boost if the exhaust flow/turbine wheel aren't enough to keep the compressor going under a load. They start to "flutter" at various loads/rpms/psi.
joe