RB head on L-Gata

Rob Gaskin

Treasurer
Staff member
Site Administrator
Possibly of interest/useful reference: Sato san's RB20E (single cam) head on L-gata block blog:

http://sato1511.blog40.fc2.com/category47-2.html

Short video:

The idea was to create an hommage to the LY crossflow heads, and he made a few 'kits' of parts (including his own castings) for others to buy. I've seen a couple of them in Japan and they were quite impressive.

Looks amazing, sounds awful. It needs a shakedown and tune ;-)
 

AliK

Vehicle Dating Officer
Staff member
Club Member
In my opinion that sounds fantastic!!!

Garry, this is seriously impressive stuff keep at it chap! You reminded me of this episode of Project Binky when the start cutting up manifolds!

 

bumblejon

Active Forum User
If anyone should be interested in following the RB20E / LY Homage that Albrecht has shown, I have 2 x RB30E engines that are going spare. I was following the LY homage project some years back now and was considering completing a similar thing myself but sadly I sold my Z recently and have no use for them. As an aside, you could also do an RB30-32-3425/26DE with them should you so choose...

@ Atomman,

I have all the entire inlet conversion assembly captured in CAD if that helps you out byway of a head start and any potential activities, happy to share all the design intent with you.... it may prove helpful when you get back to a machine tool and CAM package in the near future.
 

richiep

Club Member
That RB20E head setup looks superb. Really does capture the LY vibe with that cam cover. Such efforts in Japan really highlight there is potential for playing with the whole RBL thing. Far too much of the dialogue on the net focuses on the usual “can’t be done/too difficult/too expensive” yadda-yadda on the US forums. With the right skills and access to equipment, cool and innovative experiments are possible.
 

atomman

Club Member
If anyone should be interested in following the RB20E / LY Homage that Albrecht has shown, I have 2 x RB30E engines that are going spare. I was following the LY homage project some years back now and was considering completing a similar thing myself but sadly I sold my Z recently and have no use for them. As an aside, you could also do an RB30-32-3425/26DE with them should you so choose...

@ Atomman,

I have all the entire inlet conversion assembly captured in CAD if that helps you out byway of a head start and any potential activities, happy to share all the design intent with you.... it may prove helpful when you get back to a machine tool and CAM package in the near future.

Thank for the kind offer Jon , that would be a great head start if you could share those CAD models with me thank you
 
That RB20E head setup looks superb. Really does capture the LY vibe with that cam cover. Such efforts in Japan really highlight there is potential for playing with the whole RBL thing. Far too much of the dialogue on the net focuses on the usual “can’t be done/too difficult/too expensive” yadda-yadda on the US forums. With the right skills and access to equipment, cool and innovative experiments are possible.

if you now go onto ‘church of L-series’, you’ll think that only a cam and rod set from one person are worth having, that only great things are made in mercia and that anything that doesn’t follow the mind set of 2-4 people on there is a just a folly. It’s a shame.
 

atomman

Club Member
wouldnt it need to be sealed under the plate too?

I don't think so really, if everything is dead flat and true it would seal, the 2 rear head bolts go through it as well, Those 2 rear most chambers are for oil return to the sump, so no oil pressure in there, he has blocked them with the plate and then used the 2 pipes to return the oil externally ,

I have seen oil return kits for RB's that go in the middle rear of the head to help when high rate pumps are used,
 
I don't think so really, if everything is dead flat and true it would seal, the 2 rear head bolts go through it as well, Those 2 rear most chambers are for oil return to the sump, so no oil pressure in there, he has blocked them with the plate and then used the 2 pipes to return the oil externally ,

I have seen oil return kits for RB's that go in the middle rear of the head to help when high rate pumps are used,

when you look at the way hes done that, it looks 'simple'!?
 
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