Just wondering if anyone has ever sea-foamed an FD?
What process did you use and what was the result? From where did you add the seafoam?

I did a search and for most 1st and 2nd gen rx7 cars it was said to work rather well but I wanted to ask and see whether any 3rd gen guys have done it.

Only reason I am wary about is because its a rotary and the twin turbos, I don't know if it makes a difference but i would rather not do it at all then try and experiment.

 

Lol come on guys 130 views and no responses. Atleast bump it if you're interested in hearing an answer from someone please.

 

Its all the same concept with any generation even though its twin turbo that wont effect anything. that's my 2 cents for the day.

 

We used it on an fd that had troubles starting. We hoped it was a stuck seal or two. Turned out he had to rebuild the engine. Seals were damaged from exhaust ports. He injected it into the engine while running through a vacuum port. Lots of smoke, so much people called fire dept.

 

Your mystery product will have the same effect in a wankel engine as a piston engine, nothing.

 

Most 3rd Gen owners just use water:

https://www.rx7club.com/3rd-generati...thread-949720/

 

Mazda also makes their own version of seafoam that gets used to decarbon the RX8's before condemning the motor. It comes with a long flexible sprayer nozzle so you can keep the can upright while hooked up to those vacuum ports on the UIM.

 

Adding anything to oil should be unnecessary if you change it at appropriate intervals.
If you're concerned about carbon, consider a simple boost activated Water Injection system. IMO it's safer than the all-at-once approach of water ingestion and you get other benefits like cooling and knock suppression.

 

There are no tangible benefits. It may even be detrimental to the poor thing.

I see it (here comes the devil's advocate personal opinion) as no more than a fad that has taken off since we've had Youtube. A guy pours some gunk into his poor Corvette, and claims this is a good thing to do to it.

Then someone else with a Mustang gives it a go. Then a Civic...

Engines are not designed to ingest large quantities of anything other than air & fuel at once. The exception as other knowledgeable people have said, is running water injection, because it is in small amounts and it is progressively injected and gives a cleaning benefit over a period of time.

Not this business of putting half a litre or two of some foreign liquid into the engine within a few minutes, via a vacuum port. That is normally a last-ditch attempt to clean out a terminally carboned-up engine before you give up and pull it out of the car. RX-8's come to mind.

If it runs well, leave it alone. You're not going to loosen or remove ounces and ounces of carbon. Its not going to run any smoother. Thats likely just a psychological placebo thing that comes afterwards.

Having said all that, go right ahead, its your engine

 

Pomanferrari has a thread on Seafoam - https://www.rx7club.com/3rd-generati...eafoam-856256/

 

I've seafoamed my original motor for ***** and giggles a few years back. No noticeable performance or reliability benefits. However, it will put on a smoke show so incredible that you'll likely be arrested by the NSA. In my experience, the rotary produces 100x more smoke with seafoam via vaccuum line than any piston motor.

Just don't do it unless you have a tail-gater on the interstate that you must shake loose. If thats the case, unplug the vac line from your boost gauge and spray away under light throttle