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Rb26 Into S13 Silvia

Proximity Motorsport
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Butters Experienced

Butters

Posted
Posted

Hi,

Just thought I might share some more RB26 into S13 insight. When I got my sump converted I got them to add on an extension. Holds a fair bit more oil now.

Also got a custom sway bar made by the selby guys. Its the right shape but they made it sit way way too low. I have to send it back to get it re-done.

See pic -->

SwayBarNSump.jpg

Don Dada Mentor

Don Dada

Posted
Posted
heres a pic of mine that went into a cefiro used rb20 engine mounts and had the sump modded

It did not look like u had to modify the sump to clear the sway bar... correct???

However it looks pretty close,probably from the angle of the pic. How much clearance is there between them?

Rb 20/25 mounts are the same right? That is the rectangle mount one bolt on top and one underneath.

STATUS Grand Master

STATUS

Posted
Posted
It did not look like u had to modify the sump to clear the sway bar... correct???

However it looks pretty close,probably from the angle of the pic. How much clearance is there between them?

Rb 20/25 mounts are the same right? That is the rectangle mount one bolt on top and one underneath.

Any car that comes with a RB series engine does not need the sway bar mod.

  • 2 weeks later...
Don Dada Mentor

Don Dada

Posted
Posted

post-42272-1241741442_thumb.jpg post-42272-1241741657_thumb.jpg

Just thought i'll update as to what had to be done for the 26 sump to fit in the C35.

One problem i've come across though is the power steerin pump..... the high pressure line does not line up.

What have u guys done???

Use the 25 pump???

Does the pulleys line up using the 25 pump or do i need to change the bracket as well???

I also noticed the 26 pump uses a slightly thicker belt, if i use the 25 pump what belt would work to mesh the groove on the balancer with the thinner 25 pump groove???

Butters Experienced

Butters

Posted
Posted
One problem i've come across though is the power steerin pump..... the high pressure line does not line up.

Use the power steering pump from the RB26. Get a custom power steering line made.

You can just see in the below pic the custom line and swivel setup coming up to the PS pump.

Should cost you around $100 ish to get done.

vq33_006s.jpg

Butters Experienced

Butters

Posted
Posted

Also notes on mounts. I found the RB25 mounts different to rb20, although been told they were the same. So something weird there.

I used the rb20 ones. A note on that, if you use the rb20 mounts the oil filter will be dangerously close to the mount. Make you modify it

to clear. Seen two cefiro's split the filters and lose there oil due to this.

STATUS Grand Master

STATUS

Posted
Posted
Hi,

Just thought I might share some more RB26 into S13 insight. When I got my sump converted I got them to add on an extension. Holds a fair bit more oil now.

Also got a custom sway bar made by the selby guys. Its the right shape but they made it sit way way too low. I have to send it back to get it re-done.

See pic -->

SwayBarNSump.jpg

Should have extended the other side, the side you have modified is less effective than before except it holds a smidge more.

Butters Experienced

Butters

Posted
Posted
Should have extended the other side, the side you have modified is less effective than before except it holds a smidge more.

Holds quite a bit more actually. Around 500-600ml more then a standard sump.

I will admint it would have been nice to extend the other side.

Not sure what you mean by "less effective then before" .... ?

a31lunacy Proficient

a31lunacy

Posted
Posted

i used an rb25 oil filter block (the one that mounts to the engine block) and am running a oil cooler kit so i clear sweet as. and yes should mod both sides because the mod you have performed only removes the small walls that were there previously in the stock box section i gained an extra 1.5 lt (inc the oil cooler) and for the price a tomei sump baffle is a great idea.

STATUS Grand Master

STATUS

Posted
Posted
i used an rb25 oil filter block (the one that mounts to the engine block) and am running a oil cooler kit so i clear sweet as. and yes should mod both sides because the mod you have performed only removes the small walls that were there previously in the stock box section i gained an extra 1.5 lt (inc the oil cooler) and for the price a tomei sump baffle is a great idea.

yep and those walls or chambers are very useful.

  • 2 years later...
wolverine Grand Master

wolverine

Posted
Posted

The stagea AWD blocks have 2WD sump holes but the oil pickup location is different and this can mean you will need to massage a 2WD sump to clear around the pickup. The 2nd set of holes is slightly inboard.

You will need to modify the oil pickup angle which means cutting, die grinding out the bracket and brazing it to the correct angle to suit the 2WD sump and trim some of the baffle.

  • 2 weeks later...
N1 RB26 Contributor

N1 RB26

Posted
Posted

sorry got a quick question is there any benefit to mod the gtr sump? why not just get a rwd sump that will fit that's already got enlarged volume baffles doors etc. cause i'm doing a 26 into a gtst and get a pan to fit that holds 9L baffles, doors, and mesh windage for $700 or should i mod the gtr sump instead? just seems like a lot of stuffing around that's all

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