RB20 cooling questions

Discuss the RB20, RB25 and RB26 series engines.
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sbird1
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Joined: Sat Nov 05, 2005 8:47 am
Car: 2006 BMW 325i
Location: Savannah, GA

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So I have almost everything I need to do my RB swap minus the electric fans and the radiator. I have just a couple questions:

1) Are all 240 rads the same? I mean is an KA24DE the same as an KA24E as far as mounting goes? I'm supposed to get a good deal on this one: http://sfbay.craigslist.org/sfc/pts/408470350.html

2) Do I need to do anything to accomodate the wider Koyo in the engine bay? Special brackets, etc?

3) I want to go the way of Altima fans. Will they clear the RB as pullers with the added width of the Koyo, or are they too wide?

4) I was thinking about getting the extra cooling by getting a cooling panel. Is this a good place to get them? Is that a good idea? Which one would be best on an s13 coupe with the RB? http://www.projectnissan.com/s...y=184

I know that's a lot of questions, but I am concerned about cooling this thing. Thanks for any help you guys can provide. I appreciate it!


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Coolwhip
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1) KA(E) and KA(DE) radiators mount exactly the same.

The KOYO is not the best radiator but if your looking to buy a new one, that $200 one you found looks to be a good deal.

2) You don't need any special brackets to fit the koyo with an RB as long as your motor is mounted correctly.

3) Can not use Altima fan setup with the RB, just won't fit. If you can fit a clutch fan, do it. If not, finding slim electric fans are the way to go, either it be pushers or pullers.

4) Cooling panels are all the same as long as they cover up and divert air in the right direction.

There is a extremely well "COOLING" RB write up done on the forums that you should look through as well.

Good luck

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Coolwhip
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sbird1
Posts: 6211
Joined: Sat Nov 05, 2005 8:47 am
Car: 2006 BMW 325i
Location: Savannah, GA

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Awesome man! Thanks for the info. That write-up was really good too. Sucks that I can't use Altima fans though...


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