Description
Put simply this hose is used to improve the oil return from your AOS so that it can better perform for you.
So what's going on?
Many drain hose installations have the drain hose close to horizontal or with very little vertical angle. Under acceleration this prevents the oil from freely draining back to your sump. It is also well documented that EJ engines, under heavy cornering, push oil into the heads and can lead to excess oil entering the AOS. Additionally, this eases installation of the drain hose as many times it is inadvertently installed incorrectly by people who do not have experience.
Testing
In track testing we found that the AOSs were acting more as an "oil capacitor" only really draining under braking. In testing we had secondary cans catching oil being pushed from the AOS and/or excess oil found in the vent hoses. We suspect most of this was due to the AOS designs having more oil in the can than designed for. The addition of the hose helped alleviate these issues.
The Fix
This hose replaces the turbo drain hose allowing the return point to be 4"-5" lower and improve oil return in all conditions. This allows your AOS to do its job better.
The Hose Kit
- The hose is constructed of wrapped silicone with nylon reinforcement, with a fluorosilicone (FVMQ) liner to have a long life interacting with oil. -lt comes with an extra long turbo oil drain hose for use with rotated turbo kits as well. The drain hose is marked for cutting for stock location turbos.
-It features a 24" AOS drain hose to fit all common AOS install locations. Simply cut to length.
-It includes new stainless hose clips for the turbo drain hose
-An aluminized-fiberglass heat sleeve is included to help protect the AOS drain section from high exhaust heat.
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