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Rb26Dett Valve Springs In A Rb25 Head

Guilt-Toy

By Guilt-Toy,
in Engines & Forced Induction

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Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

I scored a set of valve springs, but they are for RB26DETT.

Anyone used the valve springs from RB26 into a hydro RB25DET s1 head?

Its the HKS Step 2 ones.

RB26DETT 22001-AN001 For STEP2 BNR32, BCNR33, BNR34.

030910

I have got Tomei 270 8.8mm lift cams, in my rb25/30.

really would like to use these if i can.

any ideas?

post-1240-0-49677000-1318897479_thumb.jpg

cheers

Guilt-Toy Grand Master

Guilt-Toy

Posted
  • Author
Posted

So.. thanks for reminding me to call Paul, Mr Red R Racing comes through and answers a private number from overseas for once! was good to catch up...

So he mentioned that because these cams are not so big, it should be okay with stock springs, and that there will be no issues with the springs, but then he started being a detective and found some flaws with my setup and put me in the right direction!

car dropped a cyl once or twice, and once the engine even shut down... he said that I need to change the oil restrictor situation in the head, at the moment its setup as how sydneykid suggested in his thread but now for me I need to go back to twin 1.2mm feeds to give my lifters some more oil to stop them from bleeding and playing up.

also pointed out that the thick oil i am using aint going to help my situation either, i just switched to the lemans, so looks like its back to competition for me! (Motul)

Also, there is NO chance RB26DET springs will work in a Hydro rb25 vct liftered head. (for the searchers)

going to rip the head off and get this sorted asap!

cheers for all the input guys, im sorted

GT

GodzillaMotorsport Enthusiast

GodzillaMotorsport

Posted
Posted

he wont answer my phone calls or other guys who try to get there parts back from him .....you were lucky to get him :)

So.. thanks for reminding me to call Paul, Mr Red R Racing comes through and answers a private number from overseas for once! was good to catch up...

So he mentioned that because these cams are not so big, it should be okay with stock springs, and that there will be no issues with the springs, but then he started being a detective and found some flaws with my setup and put me in the right direction!

car dropped a cyl once or twice, and once the engine even shut down... he said that I need to change the oil restrictor situation in the head, at the moment its setup as how sydneykid suggested in his thread but now for me I need to go back to twin 1.2mm feeds to give my lifters some more oil to stop them from bleeding and playing up.

also pointed out that the thick oil i am using aint going to help my situation either, i just switched to the lemans, so looks like its back to competition for me! (Motul)

Also, there is NO chance RB26DET springs will work in a Hydro rb25 vct liftered head. (for the searchers)

going to rip the head off and get this sorted asap!

cheers for all the input guys, im sorted

GT

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