My dyno plots - ugly

BriceJohnson · **Joined:** Thu Apr 13, 2006 7:33 am **Posts:** 2230

does seafoam+rotary=death? If not, would that not help the carbon buildup on the apex seals?

Keith Quistorff · **Posted:** Thu Mar 31, 2011 4:43 pm

BriceJohnson wrote:

does seafoam+rotary=death? If not, would that not help the carbon buildup on the apex seals?

A few folks have reported 'seat of the pants' power improvement from mixing Seafoam into a full tank of gas, but there's not enough info out there at this point to convince me to try that, especially with an engine that's still under warranty. Mazda has a cleaner called "Zoom" that's specifically designed to de-carbon apex seals - with the engine hot you squirt a bunch of Zoom directly into each rotor chamber while turning the starter then let it sit for 1+ hours. Then grab a gas mask and start the car to burn it off - the exhaust smoke is reported to be unreal - both smell and quantity.

Vincent Keene · **Posted:** Thu Mar 31, 2011 4:53 pm

Keith Quistorff wrote:

Then grab a gas mask and start the car to burn it off - the exhaust smoke is reported to be unreal - both smell and quantity.

We did the Seaform thing on our Lemons Prelude and I can tell you no mosquitoes were left in my neighborhood afterwards.

BriceJohnson · **Joined:** Thu Apr 13, 2006 7:33 am **Posts:** 2230

Yeah, seafoam fed in through a vacuum line in the intake manifold yields a huge smoke show. Sounds pretty similar to the zoom product you are talking about.

Jason Mauldin · **Posted:** Thu Mar 31, 2011 7:51 pm

The engine is under warranty???? Well then. Do the sea foam! In the intake and the gas tank. Probably better not to do it in both at the same time. Change the oil soon after you do it.

Jason Mauldin · **Posted:** Thu Mar 31, 2011 8:11 pm

This guy found a solution to his rotary issue.

*disclaimer, I REALLY waited as long as I could for that!

Keith Quistorff · **Posted:** Mon Apr 04, 2011 8:06 am

Looks like a great solution. Not sure it's STX class legal, though. Think anyone would notice?

Keith Quistorff · **Posted:** Mon Apr 04, 2011 8:09 am

Jason Mauldin wrote:

The engine is under warranty???? Well then. Do the sea foam! In the intake and the gas tank. Probably better not to do it in both at the same time. Change the oil soon after you do it.

Unfortunately, to take advantage of the engine warranty, a Mazda service dept. must first go through a series of specific tests and procedures as outlined in a Mazda Service Bulletin (all at the car owner's expense, of course), and that list includes the engine cleaning procedure using Mazda's Zoom cleaner.

Kevin Allen · **Joined:** Thu Aug 28, 2003 6:42 pm **Posts:** 3479

Keith Quistorff wrote:

Looks like a great solution. Not sure it's STX class legal, though. Think anyone would notice?

I'll allow that if you'll allow me to substitute my STi for my WRX. :thumbsup:

Keith Quistorff · **Posted:** Tue Apr 12, 2011 9:18 am

Following up on my RX-8 power issue, I had Capital Mazda complete the remaining items on the applicable Mazda Service Bulletin, including the engine cleaning / de-carb process, and the engine feels noticeably stronger now. Don't have any new/real dyno data to support that yet, just waiting for another dyno opportunity - will post updated dyno data when it happens.

Jason Mauldin · **Posted:** Tue Apr 12, 2011 2:51 pm

Any thoughts on what they did that might've fixed it?

Keith Quistorff · **Posted:** Tue Apr 12, 2011 2:59 pm

Other than a series of checks/tests, the only thing they did was the de-carbonization process, so I have to assume that made the difference.

noahfleming · **Posted:** Sat Apr 16, 2011 2:11 pm

Based on how my plugs looked after 20k miles, I can only imagine the buildup of carbon at almost 100k miles.

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