Race pipe Installed- No 20whp !!
- Thread starter speedi3
- Start date
When it comes to warranty issues, remember that you have to pay to play. If you increase the boost on your motor and blow the motor. Or if you mod the motor, make big power numbers, and then have the tranny go out. Don't cheat and try to get Mazda to warranty it. In these circumstances, the motor or tranny were not defective. However, a dealer shouldn't deny a claim for let's say your A/C just because you have an intake or an exhaust on the car......
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- MazdaSpeed6 DOB 02/06 Liquid Platinum Metallic
Why don't you all grow some balls and spend some money on some kick ass mods... 
Update on my exhaust. Again this is all feelings based as I have not dyno'd BUT it seems as if either the power is back or beyond. It has been 5 days since the install. The first few days there was a definite loss in torque. This morning i got on it and it felt like it used to and with a little more zing. I disconnected the battery at the original install to clear out the computer but it had no inital impact. Does the ms3 learn on the exhaust changes? I was expecting it to be instaneous. It seems weird but I know I felt more torque. I also have been studing my shifts which now occur around 6400. I may have to take back my earlier comments if i continue to get this level of performance.
With a turbo car anything that creates better flow either in, or out of the engine will result in more power (assuming you can add enough fuel for the new air).
The concept of losing back pressure, managing exhaust pulses, exhaust system scavenging effects, etc don't apply for turbo cars. The little spinny dohicky after the engine exhaust ports pretty much ensures that the air in the exhaust is one smooth flow with no pulse effects left.
The only way I can see something like a mid-pipe losing power is if the flange size is so different that it creates turbulence and increases back pressure.
The concept of losing back pressure, managing exhaust pulses, exhaust system scavenging effects, etc don't apply for turbo cars. The little spinny dohicky after the engine exhaust ports pretty much ensures that the air in the exhaust is one smooth flow with no pulse effects left.
The only way I can see something like a mid-pipe losing power is if the flange size is so different that it creates turbulence and increases back pressure.
speedi3 said:
As j'sspeed3 said, yes your PCM relearns however, I'm still not sold on the test pipe. Turbo XS dyno'd it at 22HP and 30ft/lbs of torque with an CAI and Bypass valve. You can obtain that with just a CAI. Just my .02 cents
Also you need definitely change your shift point. The throttle plate is electronically controlled and starts to close at 6000rpms. That is one issue the aftermarket computer mod companies are trying to overcome.
rob142sti said:
Good point. I was thinking about that too. I'm in Nashville todays temp was a high of 77. These things are very sensative to temperature!
Its not a downer I want to feel good about this pipe as i have already spent the money.... I also want to know that it was beneficial and not some BS.
M3_Zoom said:
I hear you on the shift point. I mentioned that as it seems that i now have power up to that point. whereas before the exhaust I had no power. Just commenting on where the power now fades. Can an exhaust change the shift point? I've seen on the forum where 5500 was max..
Yep that is the general rule for turbo cars. Here is a quote from Shiv at Vishnu on an exhaust system he designed for the BMW 335i.rob142sti said:
"The reason we went with a fully divorced system is that they sound better, imho. And they should also make a bit more power due to less backpressure/turbulence. H or X pipes make sense in naturally aspirated V8s since they are used to smoothen out the exhaust pulses and make things quieter. In the case of a turbocharged engine, the turbine wheels themselves do all the pulse chopping. The goal of the exhaust, from that point on, is to make keep backpressure to an absolute minimum."
Not everyone likes him, but he makes a valid point about exhaust design for turbo cars.
