3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.

What side seal springs do you recommend

Old 03-10-14, 05:04 PM
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What side seal springs do you recommend

I'm about ready to order the rest of the parts I need to reassemble my engine, but I'd like to know what everyone's opinion on side seal springs is.
I'm using OEM Mazda side seals, but I need springs for them. Atkins has 3 different types on their site, they have OEM and their own that can be ordered with or without cryo treating.

Non treated
86-92 Rx7 13B Side Seal Spring Set (N326-11-C17)

Cryo treated
86-92 Rx7 13B Cryogenically Treated Side Seal...

OEM
93-95 Rx7 13B Side Seal Spring Set (NF01-11-C17)

Input would be greatly appreciated.
Thanks
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Old 03-10-14, 09:16 PM
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OEM TT side seals only. Why downgrade?

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Old 03-10-14, 10:25 PM
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OEM. Cryo is BS.
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Old 03-10-14, 10:42 PM
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Originally Posted by thewird View Post
OEM TT side seals only. Why downgrade?

thewird
I'm using the OEM side seals, I was just curious about the springs. I don't want to cheap out on it, but I don't want to spend more money if it's an unnecessary cost.

Thanks for your input.
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Old 03-10-14, 10:43 PM
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Originally Posted by freddyrx3 View Post
OEM. Cryo is BS.
That's what I was thinking, but I just wanted to get some feed back from others.

Thanks
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Old 03-10-14, 10:52 PM
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I ment the springs, oops. But same goes for side seals haha.

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Old 03-10-14, 11:30 PM
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I've used both the 93-95 and 86-92 and have noticed zero difference. The spring tension seems the same. The Inconel was used in a lot of the REW stuff to help hold up to heat but I am not sold on it. All the motors we build have over 120 psi compression. I will use whatever the customer requests. Its up to you if you think over 3X the price is justified for the springs. 86-95 side seals are all the same.
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Old 03-10-14, 11:48 PM
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I think it has more to do with longevity then compression. The springs fatigue over time due to the heat. The inconel should resist that more. After 50k km of tons of hard track abuse @ 20 psi my old 13b was still springy and well popped out where the older high mileage motors the seals barely pop out.

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Old 03-10-14, 11:50 PM
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so you got pistons oh wow
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OEM Never had ay issues
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Old 03-11-14, 08:46 AM
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Originally Posted by thewird View Post
I think it has more to do with longevity then compression. The springs fatigue over time due to the heat. The inconel should resist that more. After 50k km of tons of hard track abuse @ 20 psi my old 13b was still springy and well popped out where the older high mileage motors the seals barely pop out.

thewird
I agree that is the theory, I just never noticed a difference. We have a few motors that have been running 7-8 years and see hard track time. Either way, I will use whatever the customer prefers.
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