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Scratching my head over what apex seals to pick

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Scratching my head over what apex seals to pick

Old 02-14-19, 04:24 PM
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Scratching my head over what apex seals to pick

I'm sorry, but I had to do it. Another apex seal thread.

Let me start this off by saying that I've done a lot of reading online, maybe too much. I think it might be a nice idea to create a new thread where hopefully we can gather some fresh information on apex seals.

I'm currently rebuilding my 13B from my 2002 FD3S, and I am simply stuck on choosing apex seals. First of all, my preference would be to go OEM, but since I want to make 400+ on the wheels, and I will be tuning it myself, I just don't want to take the risk of accidentally detonating, and ruining a housing, rotor and turbo. So my choice is to go aftermarket.

Now, when it comes to apex seals, it does seem like there is a trade-off between apex seal 'toughness' and housing wear. I would like to prolong the life of my housings as much as possible, I'm not building a drag/race car, I want a fast car for driving on the street. My ideal apex seal is tough, but also gentle on the housings.

This is is currently what I know:

- Goopy seals are sold basically everywhere, and being used in stock/modified builds, but I can't find any information / data on their website, and I sent them an email asking them for more information, but they simply replied 'check website'. I don't really care that these apex seals are used in racing cars, I want a good seal that can last me many years.

- RX Parts Apex Seals, these are basically praised by IR performance, being a high performance seal, but also gentle on the housings, I have no reason to believe they're lying, it's just that I don't hear a lot of other people talking about these seals

- RA seals, a lot of mixed stories, superseals eat housings it seems, and would probably not be my choice.

- Atkins seals, a lot of mixed stories, not sure who to believe.

- E&J Seals, I hear a lot about these seals, luck7racing claims they are gentle on the housings, DNA garage seems to use these for stock/modified builds? I keep seeing E&J more often.

If anyone has any input on this, or would like to share experiences, it would be greatly appreciated.

- Nick
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Old 02-17-19, 04:30 PM
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Sounds like you've already done the homework but I've used most of the seals you've mentioned. Goopy and RA seem to be harder on the housings. The E&J and Atkins seem to be easier on the housings but the Atkins don't seem to hold up as well to detonation but don't do as much damage as a OEM. Never used the RXparts seals and here's another one to throw in the mix https://power-seals.com/ my friend runs these but it's a drag only car and they hold up to abuse and don't wear the housings. Not sure on a street car but they claim to not damage the housings. I'll be running the power seals on the recommendation of my friend but again my car is just a track car. If using the apex seals that are harder on the housings use more premix seems to help lessen the damage. On RA seals I add 2.5oz per gal but again this is on a race car that sees 25psi and up boost. Good luck.
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Old 02-18-19, 10:05 AM
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I can only speak from my experience, but I originally had Atkins Seals and ran them for a few years until I had a huge knock event at like 20 psi and WOT (250 count!). The result was a chipped seal right where the main piece meets the triangle. I do not fault Atkins for this the detonation had nothing to do with the seal. I either think it was related to oil contamination in the intake related to a precision turbo leaking oil or too hot of a plug as A/F and timing were safe

Because I am trying to push/pushing beyond 500 whp and don't daily drive this car (more of a hobby) I ended up going with RA Super Seals. I really don't care if these seals eat my housings in 15k miles because that like 5-7 years of driving for me. I decided i'd rather have the best chance of surviving a knock event than longevity of the housings, etc (they are junkyard housings anyway). I have been running upwards of 22-27 psi on the RA Super Seals for about 2 years now with no issues. FYI I run about 1-1.5 oz of techniplate per gallon on E50-E60.
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Old 03-14-19, 12:23 PM
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im using goopy, but recently have met the owner of rxparts. Very stand-up guy, easy to contact, and extremely knowledgeable. I dont think you would go wrong with either.
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