RB25DET or SR20DET S15
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21 / M
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Posted 6/27/10
Which would you get for a Nissan 240sx S14 ?

The RB25DET aka the engine for the Nissan Skyline R33 GT-S or

The SR20DET S15 Spec-R aka the engine for the Nissan Silvia S15 Spec-R

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33 / M
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Posted 6/28/10
LS7

Lighter than the RB, and has more potential.

Or how about something different: Turbo KL-DE V6? Less weight than the SR. And a hell of a lot cooler and more original.

If you HAVE to stick to the fanboy engines: SR. RB is a fat, heavy, nigh useless slab of cast iron, unless all you want is a drag car.
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25 / M / SF Bay Area, CA (...
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Posted 6/30/10
Between those two, the SR.

However, why not a turbo diesel?
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M / Nowheresville, MI
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Posted 7/3/10


I whole-heartedly approve of this.


AWDfreak wrote:
However, why not a turbo diesel?


A what?!........ You mean like a Duramax?


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25 / M / SF Bay Area, CA (...
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Posted 7/4/10

impala1 wrote:



I whole-heartedly approve of this.


AWDfreak wrote:
However, why not a turbo diesel?


A what?!........ You mean like a Duramax?




LS swaps are overrated

OK, LS engines are nice and all but they're too common.


And yes, I do mean something like a Duramax or Audi/VW TDI. It's something that isn't too common. Speaking of which, on that one show on SPEED Channel, "My Classic Car", there was this INSANE turbo-diesel rat-rod (I think it was a Cummings, not exactly sure)...
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33 / M
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Posted 7/5/10

AWDfreak wrote:


impala1 wrote:



I whole-heartedly approve of this.


AWDfreak wrote:
However, why not a turbo diesel?


A what?!........ You mean like a Duramax?




LS swaps are overrated

OK, LS engines are nice and all but they're too common.


And yes, I do mean something like a Duramax or Audi/VW TDI. It's something that isn't too common. Speaking of which, on that one show on SPEED Channel, "My Classic Car", there was this INSANE turbo-diesel rat-rod (I think it was a Cummings, not exactly sure)...


So are RB and SR swaps...hell, not to mention 2JZ swaps.

I mean, the worst part about RB/2JZ swaps is that the engines are just as heavy as any old SBC. While yes, completely stock they have more potential out of the box, as soon as you start swapping parts, the SBC has more potential.

Course, a Ford 5.0 with aftermarket heads, cams, etc would make a decent swap as well, pretty damned light. And if you really felt light dropping cash to shed a hundred pounds, there's 2 manufacturers of alloy blocks for the 5.0.

But, I still would prefer to see a KL-DE/KL-ZE or Suzuki H27A swapped in. Small, VERY light, and with alright power stock, but can be boosted should you feel like it. The H27A comes from the Suzuki XL-7 and can be mated to one of Suzuki's 5 speed manual boxes. Stock it gives 180 hp and torque, and the block itself is capable of 800-900 hp (The block is used in Monster Taijima's Pikes Peak hillclimbers). Unknown limits on stock parts.

And by Very Light...I mean it, it weighs less than an SR20. 260lbs bare bones, and around 310lbs ready to run (according to what I have been told by a company that uses the engine in aircraft, although I REALLY want to see hard figures of it myself)
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33 / M / So Cali, OC
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Posted 7/5/10
Get a SR20, your car will handle better then a RB25. Also the swap will be alot cheaper parts will be easier to get and more selection. RB25 parts are pretty limited and they are expensive power vs sr20 is meger unless your trying to break 500+ WHP but even so a built SR20 Can do just as much WHP as a RB25 untill your looking at going top end 800+WHP. For basic street driving 350-450WHP is about the target range you wanna get any thing over 450whp isnt very streetable in a sense that Gas consumption is extremely expensive, maybe 10-13 gal a mile + excessive speeding (going over 45 mph with a slight tap of the gas in gears 2-5)
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