I in the middle of a rebuild and wonder which apex seals to go with. I'm putting a 60-1 on in a few months. I was told to use the atkins 2 peice seals by a friend but when I looked at them the say they are rated to 14psi max. From what I gather the 60-1 runs the best between 14 to 16 lbs. What seals do you guys run with?

Chris

 

Your best bet is to do a search. I use stock apex seals. They seal the best and make the most power. I've ran 25+psi on them. Demetrios K. has pushed over 30psi on them. They hold up very well.

 

I agree with ernieT, stock are the best.. I didnt know that you could make more power with them though, is it because of wieght differences with 3mm??? Dont use herly seals

 

I will add in my 0.2c worth and say that you will not have any problems with 2mm stock seals.

I think they work great and have the best "bang for buck" value out of any seal available.

 

so far I'm getting a stick with stock vibe, which is fine be me, i think they are cheaper than the 2peice atkins seals anyway

 

i double that. stock seals are the best!! my other choice is the Scoot NB 2mm apex seals. you'll be suprise how much boost the stock seals can handle.

 

I think before this turns into another war, we should all read the original post. Looking at his requirements it would be hard to argue against the stock 2mm seal, they have been proven to ridiculous lengths (both boost and BHP) so he will have no problems with what he wants to achieve.

I think Judge Ito uses 2mm Atkins, you may want to PM him to ask his advice in relation to these versus stock 2mm seals.

Either way I think you will be fine in your choice between these two

 

mazda 2mm, they are the only ones my mechanic would let me use.
And as I have said b4, he gets around 466RWKW with the 2mm's.
anyone know how to convert kw to hp?

 

my FD engine has 2mm stock seals. 416rwhp @ 13psi on a T78 NO PROBLEMS YET!!!!!!!!!! for nitrous engines i believe he recommends atkins seals. for turbo stock 2mm are the best !!!!! judge ito built my engine he is the man !!!!!!!

 

746W = 1 hp

Therefore .746KW = 1 HP

466 times .746 is 347.636, a nice number indeed!

- PJ (In 1492, Columbus sailed the ocean blue / Divide that in half and you have the number of Watts in a horsepower.)

 

I think you mean 466/.746 is a even nicer number ! 624.66rwhp

 

You had me fooled for a second.

But after cracking open another Guinness, I thought about it. Here's a simple check: One KW is smaller than one HP. Therefore, the KW figure will a larger number than the HP figure.

And that means.... wait a tick, one KW is *larger* than one HP.

I've been had.

Time for another bottle...

- PJ (Pete no function beer well without!)

 

466,000 watts/746=624.66 Rice Racing wins, peejay sucks

 

i was goona say wtf, because jap cars are all rated at 206kw or 276hp. So kw are more powerful than hp.
so 1hp = 0.746KW
so yes, 466KW is around 620hp.
624.66/ 0.746 = 466kw

 

kw=seals? i missed something

 

what about atkin seals

 

the atkins 2 peice are the ones i was orignaly asking about but then everyone is saying go the the stock 3 peice ones. So those are the ones I ordered.

 

Wazzup guys? For the benefit of Peejay and everyone else, here is a link that we all should put in our favorites: http://www.cooperinstruments.com/power.html. It is the sweetest conversion calculator I have yet to find (it has many converters, not just power). No need for a calculator, just enter in the number you know and the rest is automatic. Also, if you click on the "pressure" tab, it converts PSI to Bar or vice versa. And for the final ruling, 466KW = 624.4HP. Hehehehehe, that's a heck of a lot more than the 347HP that PeeJay originally came up with. We all make mistakes Damn those Aussies!!!!! They must spend a lot of time with their datalogits and DIY widebands.

-Tom

 

Ugh.... okay, I feel better now. Thanks RICE for correcting my math

 

back on the thread subject.......

I read a post the other day where someone had aftermarket seals installed and his motor failed pre-maturely. The finding was that the aftermarket seals expanded more (than the stock ones) when they got hot and therefore seized up in the rotors. However, it was said that they were 3mm seals and the builder probably clearenced them to factory spec. They should have clearanced it bigger. Anyhow, I'm expecting 400hp to the wheels and I stuck with the stock ones too. 3mm creates too much friction and you are taking the chance the rotor grooves may not be sized correctly (like the guy I just mentioned), either too big or too small. And lastly, if you have all these other guys hitting 600+ hp with them, then it proves the fact that it's all in the tuning.

Oh yeah, and remember that a harder metal is also more brittle. My bud over at Mazdatrix was telling me that they broke the ceramic seals in their race car (that runs nitrous) so they ALL will break if pushed incorrectly.

-Tom

 

http://www.scuderiaciriani.com/rx7/apex_seals.html

 

mine , sorry LOL


they work for me!!!!!!!!!!!!!!!!!!!!!


and others i can't name??????????????

 

Ok, new question. Are the stock seals in a 87 TII 3 peice or 2 peice, and are the 87's susposed to have helper spings on the apex seals?

I tore mine down and I have two peice seals and no helper springs?

 

All 13B's since 1986 have had 3 piece, 2mm apex seals, with springs. I had a GREAT picture comparing different apex seals but can't find it.

 

Here's the picture. Save it, it's good to keep on hand when you need to show people or include in a post.