Wednesday, April 3, 2013

What's it going to cost? RB26DETT

So. What's the biggest motor we can use? The RB26DETT. That jumble of letters and numbers means 2.6l, Twin cam's and two turbo's.

So. As you can see, it's also the most expensive engine we can run. Couple of problems. RB26's always came in all wheel drive from the factory. That means it has a special transmission and oil pan setup. We don't want either of those, so we need to find an RB26 engine, no transmission. If we shop around, we should be able to get one for $2500-3500 shipped. If not, we have to buy a set and try to sell the transmission. Not advised though. No one in America needs an AWD transmission unless there trying to convert their car to AWD.

So, we need a transmission. The RB25DET rear wheel drive transmission is exactly what we need and can be found on eBay for $650-1200 shipped depending on what kind of deal we find.

Once in a blue moon I've found RB26's being sold with RB25 transmissions. That would be ideal, but we can't count on finding one.

We still need the $500 oil pan, about $500 in maintenance, the $200 boost controller and the $400 intercooler.

Hitting our goal? Done. With 280hp out of the box, with the custom exhaust and turbo elbow/downpipe by the time we turn the boost up a couple of points and add more fuel we should be above 300hp at the wheels. This is the easiest engine to hit our goals, but the most complicated engine to swap in.

So total cost? $4750-$5500. See something interesting there? The same budget to swap in and modify an RB20 or RB25 and we could have an RB26DETT for close to the same money. It's a larger investment in the motor and transmission's initial cost, but in the long run we can have exotic sports car sound and power for the same cost as the single turbo RB25.......

Still not sure which engine to run though. The RB20 can rev to 8000rpm and has a certain appeal in being the cheapest yet still making good power. The RB26 is quite literally "The Heart of Godzilla". This is the motor that got the Skyline banned from Australian motorsports. In the middle you have the RB25, which is a good middle point between the two.

Go Youtube RB26 sounds. It's insane how good it sounds. I think it's probably the best option, but we'll see. We have a lot of work to do before we have to make a serious choice about our motor.


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