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Starting My Own Slapper

SECURITY

By SECURITY,
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SECURITY Grand Master

SECURITY

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The RB26 and RB30 gaskets dont have the provisioning for the oil feed up front so the water gallery hole should match the block.

With the oil restrictors some people make them a little larger (from memory status suggested larger than 1.5mm) but i wouldn't be going any smaller.

wouldnt there be a small chance of the water damaging the head gasket if its hitting it directly over time?

so thats 1.5mm on each oil feed correct?

could i fab these up myself with some cylindrical copper/stainless lengths? what would the OD of it have to be?

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SECURITY Grand Master

SECURITY

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A slapper, is slapped together, with the mind set of "She'll be right"

You're doing a rebuild.

im doing the bare minimum on this thing mate. pretty much the things that will worry me in the future, other than that its going straight together with parts ive got laying around.

TiTAN Grand Master

TiTAN

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wouldnt there be a small chance of the water damaging the head gasket if its hitting it directly over time?

so thats 1.5mm on each oil feed correct?

could i fab these up myself with some cylindrical copper/stainless lengths? what would the OD of it have to be?

Yes restrictors in both, however they are only ~$30 each premade. At the end of the day your time to fab them up yourself isnt worth it.

MBS206 Grand Master

MBS206

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im doing the bare minimum on this thing mate. pretty much the things that will worry me in the future, other than that its going straight together with parts ive got laying around.

If you keep it below 6500RPM, and keep boost below 18PSi, she'll be sweet man.

Unless you're a thrasher, that goes out every weekend ripping massive 2nd and 3rd gear burnouts.

Even then still depending how you drive it'll hold together for a while. My setups, I'd have no issues running IF I were just driving around on the street and the occasional WSID meet. But mine ONLY lives at driving events... Hence, a hard hard life...

SECURITY Grand Master

SECURITY

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They're easy!

Why do people dread them so much? :S

theyre a pain in the ass without a decent high powered air tool set i've found. the block is still in the ute so i might just drive it over to a workshop.

If you keep it below 6500RPM, and keep boost below 18PSi, she'll be sweet man.

Unless you're a thrasher, that goes out every weekend ripping massive 2nd and 3rd gear burnouts.

Even then still depending how you drive it'll hold together for a while. My setups, I'd have no issues running IF I were just driving around on the street and the occasional WSID meet. But mine ONLY lives at driving events... Hence, a hard hard life...

i wont keep it below 6500 because this entire time ive had an rb30 i havent been able to enjoy it properly since the motor kept failing on me. im going to build this one with at least the minimum covered so i can use it for something other than something to swear at.

MBS206 Grand Master

MBS206

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its officially started. ive stripped it down, just need to start ordering parts.

im still a bit iffy about using the stock rb30 oil pump.

If you want a cheap fix, and to avoid touching your old motor (To avoid court complications) go buy a second hand RB25DET, use the head off of it. Use the oil pump from it.

Gives you the harmonic balancer you need also.

SECURITY Grand Master

SECURITY

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i just centre punched the new location for the idler. ill rip the harmonic balancer off and get the old tensioner stud off tomorrow so i can get the right size studs and drill bit... might as well replace both.

SECURITY Grand Master

SECURITY

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ok a little update:

i drilled and tapped the new idler location, like r33 racer said its a 8.5mm drill bit and a M10x1.5 tap. tested and worked perfect. i drilled JUST into the water galley but the guide says if you seal it it'll be fine, you wont get the whole thread in if you dont go that deep anyway... picture time:

th_IMG_0506.jpg th_IMG_0507.jpg th_IMG_0511.jpg th_IMG_0509.jpg th_IMG_0516.jpg th_IMG_0514.jpg th_IMG_0515.jpg

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