I need to get some rebuild parts fairly soon for my 20b, I'm tempted to just buy the kit from Rotary Aviation, however, read a lot of good feedback on the ALS seals lately.

Which ones should I go with for reliability and longevity? Will probably only run 10-15psi with a big turbo?

I'm particularly interested to learn if the ALS seals are more easy on the rotor housings? Will ALS seals last more than 20-30K miles? Are the RA Super Seals considered proven now (haven't read any bad info on them for a couple of years)? Which one is lighter for better high rpm wears? Are the ALS seals only available in one piece or 2-piece design?

Thanks in advance for any good info!!

 

ALS seals are 2 piece..

 

ALS by a mile...

 

Are the ALS seals lighter? Stronger? Easier on the housings? Last longer? Do they come with Springs?

 

They're suppose to be pretty tough but if they break they "don't" shatter and chew up housings and turbine wheels. They haven't been out to the public IMO long enough to see how resilient they will be over time. They are just the seals, no springs are included as you use the factory springs. Make sure you glue the corner piece to make it easier to clearance...

 

i would go with ianttii ceramic seals. pm me.. i can show u pix.

 

I have had great results with ALS seals and i can attest to their strength. As for long term wear, i can't give you any info on that.

 

I think that ceramics get a bad name in general because people are not educated about their clearances (not to say thats what happened in your case). I have a set of Iannetti's that only have .0005" clearance against a used set of housings. Yes, that is only half a thousandth! If i were to run them they would not last long at all! They require different clearances for different applications and need to suite your HP levels. They absolutely will not tolerate contact with the irons where as the steel seals are more forgiving in that aspect.

 

Allen, those Iannetti's would run hard in an all motor car.

 

Hopefully they will run hard in a turbo car as well.

 

The Black Super Seals warp very fast as well as loose compression fast. I don't know about ALS. I've heard good things though.

 

If i tell you some of my personal experiences with ALS you would be sold. but I refuse to put valuable information on this piece of **** site. if you want send me a pm. but ALS by far is worth it's weight in gold.

 

I'm hearing only good things about the ALS seals. Does anybody have anything good to say about the black superseals? I just rebuilt my engine using black seals and now wondering if I should tear it back down to change them. Is there anybody out there using black seals with success??

 

 

Hey Judge,

Please enlighten me with your experience with ALS seals.

Thanks!

 

I assume all steel seals including Madza, RA, Atkins, etc would have problem at your HP level, due to the heat. ALS may be the only exception?

 

Yes, please enlighten us!? How reliable have/can the ALS seals prove to be in a mega HP build....??

 

youll break something else before the als apex seals. I got proof & pics

 

This sounds like a story with a unhappy ending. Might as well tell the tale and illustrate the carnage.

 

/\ i had blown the motor with those in it. we looked at the rotor and there was a dent into the rotors @ 18psi. from what i was told mostly everyone goes for the older TURBO II rotors because there heavier and have more meat on the rotors themselves. Ill take a picture of the dent in the rotor just so you can see it!

 

as promised the pictures look at the bottom of the rotor TO SEE THAT BIG DENT

 

ALS, just got off the phone with edgar. hes the f-ing man.

 

/\ edgar is the one who made them!

 

phantom, please excuse my ignorance but what put a dent in your rotor? Detonation? And the ALS seals lived through that unharmed/ in one piece???

 

sorry for the late post. but the 93 rotors are lighter than the s4 rotors thereby meaning that they have less meat than the older rotors (kinda like how the lighter rims starting cracking from the 93 and had to be recalled)

they cannot withstand alot of pressure. its not the detnoation but the power & boost you make!

dunno if you can tell but the seals are still in the rotor