Jump to content
SAU Community

Recommended Posts

I got a set of Supertech RB25det springs and retainers to suit hydraulic lifters and I just installed them all and found an issue with them.

Im using standard valves and collets and with the kit installed, Ive found that the majority of the valve tips are not protruding above the retainer. Maybe 10 out of the 24 are protruding, though varying heights which isnt too much of a drama as the lifters will take up that. But the rest of them are all flush or below, some quite abit below. One that was particularly bad I fitted the factory steel retainer and the valve tip height jumped back up to where it should be. Some quick measurements show the titanium retainers dont have the same taper in them as the factory items. The taper is slightly larger in diameter so the retainer is sitting higher then what it should when seated around the collet/s.

Has anyone noticed this before? Or am I just unlucky and got an out of spec kit?

Try to get some photo's of how far out they are and get in contact with whoever you got them off. Quality control must have been out on a picnic the day they got made.

Yeh I will do that. But I dont have time to send them back and wait for a reply and or new set to be sent out. I can either make new ones myself or just refit the factory ones which seem to fix the issue which is my quickest and easiet option.

In case anyone wants to know, the factory retainer weighs 12.97g and the titanium retainer weighs 8.21g. Thats a good 4.76g saving per retainer and 114.24g saving overall!

  • 4 months later...

Hey mate have you had a look at the solid lifters you got off supertech did you get ones to suit the oe hyd retainer very keen to see how supertech decided to hold the shim in with the lifter rather than a rb26 which the retainer houses the shim

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Sounds like you've got an interesting adventure ahead here with local support if you have trouble! My guess is that, unboosted, you will be OK with a small upgrade like -9. What will happen is that once the stock ECU sees more airflow than it expects it will add a heap of fuel and pull a heap of timing to be safe because it can't understand how it could get that much air without there being an issue. You will see clouds of black smoke and it won't pull hard through the midrange and top end. So, overall it will be a bit frustrating but should be OK. If you are still nervous set the base timing back 2o through the CAS, but it will be even more sluggish everywhere. As said above through...this is not my guarantee your engine won't be blown into a million pieces, leaving you looking for very hard to find parts A better idea is get a computer with logging ASAP, wire in a wide band O2 sensor and a use remote tuner. I've done multiple cars this way and while it is not as good as a specific tune on a dyno they can get it 90% right. I'd suggest if you can afford an R33 GTR these days you can afford an ECU and tune. And if you can't afford that you sure won't be able to afford the rebuild if it goes bad in the meantime,.  
    • Yeah it would be nice if someone took the time to put that sort of information together, but there are a lot of variations in looms. I think you are making this way hard for yourself if you just want to get it running....sourcing an SR20 with the right wiring will be a billion times easier than matching the RB loom to an S15 chassis. If you do end up going this way, you just need to trace every wire in the loom with a multimeter, 95% of them will go to a location you can confirm at the ECU.....and then post it up for the next person who needs it  
    • Just top it up with water, and keep a general idea of how much you added. It is normal for water to be pushed into and pulled out of the reservoir through the cap, and it should not be more than half full or it will be likely to overflow when hot. Any decent mechanic can do a pressure test of the cooling system to confirm if you have a leak. Keep in mind if it is only leaking a little and when hot it may well evaporate before you see it hit the ground
    • I'd ask the shop what they used and use that. Mixing coolants is sometimes OK, sometimes not, and you have know the details of each coolant to know whether it's a good idea or not.
    • Is it alright to top up with just another green coolant?
×
×
  • Create New...