anyone try one of these? http://cgi.ebay.com/ebaymotors/Bubbl...19092024QQrdZ1

 

I was wondering the same thing. Has anyone tried this yet?

josh

 

Dunno if it would be a problem with the inlet/outlet nipples next to each other, instead of one at the bottom and one at the side.

It actually looks a LOT like Greddy's new "radiator breather tank" -

http://www.greddy.com/prod_rad_breather_tank.htm

Wonder if it's a knockoff. The Greddy tank has 2 nipples on the side and one on the bottom - I've thought about using it .

With the cheapie, I'd be worried about problems cropping up down the road. Crappy welds, weak neck for the cap to screw on to (I've heard some aluminum 240sx radiators had the neck snap right off the endtank!). I've yet to be entirely happy with any of the cheap Ebay parts I've bought.

Dale

 

Those look 10x better than the Pettit AST that I recently bought. Hopefully they function well.

 

$20-$30...

I say it's worth a shot.

If the seller/vendor of those has em' around for a while I'll probably end up buying one in the next few weeks, seeing as how I'm running on the stock AST right now. :/

I'd be sure to post my opinions after handling it.

 

Having the all the nipples at the top like that realy defeats the purposes. And 25 bucks to ship?

 

I don't think that's going to work.. If you get it you would need to put a new nipple at the bottom of the ast and then remove the upper one. Its not worth the time after you're all and done.. Better to just go support your RX7 vendors on this forum than some idiot on ebay who thinks this thing will work on rx7.

 

I am thinking about trying one. For 50 bucks why not? I am just worried about it hurting my car. Can it hurt anything? I looks really good. Much better than the Pettit one!

-josh

 

Josh,

In my opinion, I think its waste of money.. two nipples so close to each other beats the purpose of ast. I think its better to just eliminate the ast totally and put T2 neck and pressure cap.

If you look at the stock ast, one hose is at the way bottom hook up to the radiator and upper pressure cap hose is to reserve, and one in the middle to the engine. There is a reason for that..

 

One of the nipples on the side should be on the bottom of the tank. Personally I would just eliminate it. One less thing to clutter up the engine bay. I ran without an ast for 5 years with no problems. The only drawback is it makes it a little harder to get all the air out of the cooling system.

 

AST on rx7's are worthless anyway, just remove as above said. ast works only when it's the highest point, i removed with great succes, less clutter by intercooler, not really any harder to remove air then with it, if your doin it right. get some couplers for the hoses for like 5$ and be done with it

los

Edit: shti i'm lying, forgot you need to by the FC Neck with nipple. hehehe.. about 50$ and your done. lmao. my bad. but you'll have the trouble about a " cracking/grenading" stock plastic ast or buying a 100+ dollar metal one =-0

 

Damn, look at the welds on those nipples! Looks nice though. I like my Pettit AST, it works good.

 

Would there be any difference between eliminating the AST completly and running it through this little AST? Honestly if the nipples are to close to do anything on this AST wouldn't it be like running no AST at all?

thanks for the info,
josh

 

Josh, Well, I'm not 100% on this but I would say no. I would just eliminate the AST and just as Rotary Experiment Seven said, it will be pain to burp the system but thats about it.

 

Does the RX-8 have an AST? If so, will it work on an FD?

Bubble Removal TANK 1.1 bar CAP MAZDA MIATA RX7 RX8

 

Easiest way to get the air out is to leave off the coolant hose on the back of the throttle body when you fill it. Squeaze the radiator hoses gently and keep filling untill coolant comes out of that hose. Then put it on. You will have to add a little coolant over the next few days.

 

for 30 dollars more, just go to www.rx7.com and get a petit ast for 80 bucks. Done... no worries if it will work or not, yadayadayada. Why even bother with something on your FD that you're not sure if it will work? To save 30 dollars on something that could lead to the death of your engine??? Sounds like a simple decision to me. I have a petit and it has caused me no issues.

 

The Pettit AST I just bought cost $150 not $80...I wish it was polished vs. the powdercoat finish, though.

 

nother one
http://cgi.ebay.com/ebaymotors/ws/eB..._BIN_Stores_IT

 

that rotor shaped one actually looks like it would work. And is a cool rotor shape but 200 dollars is a lot.

 

That one is really cool. I am truely thinking about ordering that one!!!!!

thanks,
-josh

 

ok i went and got the ast on ebay. well it does have a nipple on the bottom.it went in with no problem looks good and works great, one of the extra nipples at the top is for a water temp gage.i checked it out and compared it to the stock ast,

 

So you like?

I can appreciate the idea of not having to worry about having an AST at all, via the FC mods, etc...but I think the time/headache of not having an easy way to burp the coolant system kinda stinks. Less clutter is a benefit though.

I'm thinking for a measely $50 or so, this ebay one sounds worth it. Now IF I found a Petit one for $80, I'd do THAT, and feel more comfortable with having the NAME, but at with there no longer being any fitment issues with this Ebay one...sh*t, metal it metal, nipples are nipples, and if it does the job better than the stock one, and doesn't seem to have any weaknesses...I'm all for it.

My body's got about 117k on it, and roughly 40k on the motor, supposedly, and after it's been runnin' kinda warm/hot, the bubbling coolant sounds that I hear under the hood are definitely a wake-up call.

Oh, I just LOATHE being broke. Such is the life of an FD owner, though. :P

Paychecks...COMING SOON! Woot. lol

 

I think I am going to give the 50 buck one a shot!

 

Water temp gauge?? how?? I'm glad to hear that it has a nipple at the bottome. I would still weld shut the 2nd top nipple. Don't forget that ast is pressurized!