Other Engine Conversions - non V-8 Discussion of non-rotary engines, exc V-8's, in a car originally powered by a Rotary Engine.

transplant??? RB26???

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Old Jul 27, 2008 | 11:54 PM
  #1  
camlz's Avatar
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From: oyster bay
transplant??? RB26???

Hey guys and gals,

I just picked up a 01 FD.

I've always loved the shapes of the FD and i know you can get huge power out of them but there is something that has always interested me.

Has anyone ever fitted an RB26DETT (Nissan engine) into an FD???

And if so how does it go? what problems did you or they face ect???????

I'm seriously considering doing this as it's something different and i just so happen to have a fully forged R34 V-SPEC II NUR engine laying around that i don't know what to do with. (I imported a half cut and was quite surprised at what i'd got my hands onto. It wasn't want i paid for anyway and they're not getting it back!!!!)



What are your thoughts???

camlz
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Old Jul 27, 2008 | 11:56 PM
  #2  
Monkman33's Avatar
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Already seen an FD with a nissan det. it was featured in a magazine about 4 years ago.

but why?

if you are going to stick with a small displacement engine... why not go with a 20b? and if you are aiming to get away from the rotary, then do a v8 swap.

but chances are, you are part of the 99% of people that wont do either.

good luck though.
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Old Jul 27, 2008 | 11:59 PM
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it'll cost you a fortune, and +1 to everything Monkman said.

Additionally, this forum does have an Engine Conversions forum to keep this crud from littering the generational sections.
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Old Jul 28, 2008 | 12:01 AM
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From: oyster bay
I'm looking into the R & D now and trying to get ideas as to if it has been done before.

As i said i've already got the engine so i'm not going to look around at V8's or 20B's.

It'll either stay the 13b or i'll do the transplant if i can afford it ect.

What mag did u see it in? cause all the info on if this has been done before cause it'll save me on time and money with R & D
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Old Jul 28, 2008 | 12:02 AM
  #5  
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From: oyster bay
sorry mate. new to the site and am getting used to it. as if u posted everything in the right spot when u first joined!
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Old Jul 28, 2008 | 12:11 AM
  #6  
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From: oyster bay
justed asked a mod to move it for u! happy????????????????

i've been reading up on a few other ppl asking the same questions but every1 seams to be saying seen it done before but nobody has all that much info.

anyways with my R & D i'm just looking at how much the heavier engine will affect the car, instalation, movement of batteries to boot ect and how much is actually involved in the process.
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Old Jul 28, 2008 | 12:11 AM
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If you REALLY want an FD, sell the RB to fund a 20B 3 rotor swap, otherwise get an S chassis. They are way easier to swap an RB into, and there is a ton more info about ti too.

The RX-7 is just a different beast altogether already, don’t try too hard!

Trust me; this is what about 90% of other people who are worth listening to will tell you.

Anything is possible, the question is, is it a good idea? In this case: no. There are better/cheaper/ more efficient ways to use the car and the engine then trying to combine them together. This would only yield mediocre results because of the Chassis design. The FD3S chassis was designed specifically for a rotary power plant, which sits low and far back in the engine bay. Putting in an RB26, you will run into the same problem with understeer and weight distribution as the S-chassis, only about 40% worse.

Just like the LS1, it's not the amount of weight, it's where that weight is positioned, so a swap of this nature won’t produce anything more than an average drag car. For amount of work, the 20B would ultimately yield far superior results.


Max.


Another word of advice: Personally, I like to DRIVE my cars, and coming from experience with my own car, stuff that initially seems like a good idea, oftentimes takes a lot more time and money, as well as patience.

If you want to actually enjoy your car and not watch it sit on jack stands in the garage, then this is another factor to consider.

Well, good luck with everything, I hope you make a good decision.

Last edited by Asterisk; Jul 28, 2008 at 12:18 AM.
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Old Jul 28, 2008 | 01:29 AM
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From: oyster bay
thanks mate
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Old Jul 28, 2008 | 01:56 AM
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im currently putting a RB25 in as we speak, no fitment issues what so ever, ill post pics as soonas its done-
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Old Jul 28, 2008 | 10:50 PM
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I love the RB and I have no problems with swapping a different engine into the RX-7, but personally I just don't quite like the idea of sticking a long straight-six into the chassis. I just don't feel that the long, heavy engine is a good match when the car was designed for a much more compact power plant. Anything can be done, if you have enough money, but I'd save the RB for a different chassis, something with a little more space up front.

Caterham? Kit car? 240SX? I don't know, there's plenty of options out there. But for an RX-7, I'd rather work with something a little shorter and lighter, like a 4-cylinder or a 20B.
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Old Jul 29, 2008 | 12:48 AM
  #11  
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From: oyster bay
thanks guys. FORTUNEBV keep me updated on the RB25 conversion if you could.

camlz
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Old Aug 28, 2008 | 11:46 AM
  #12  
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Originally Posted by FORTUNEBV
im currently putting a RB25 in as we speak, no fitment issues what so ever, ill post pics as soonas its done-
in for updates.
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Old Sep 4, 2008 | 09:40 AM
  #13  
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Originally Posted by Asterisk
If you REALLY want an FD, sell the RB to fund a 20B 3 rotor swap, otherwise get an S chassis. They are way easier to swap an RB into, and there is a ton more info about ti too.

The RX-7 is just a different beast altogether already, don’t try too hard!

Trust me; this is what about 90% of other people who are worth listening to will tell you.

Anything is possible, the question is, is it a good idea? In this case: no. There are better/cheaper/ more efficient ways to use the car and the engine then trying to combine them together. This would only yield mediocre results because of the Chassis design. The FD3S chassis was designed specifically for a rotary power plant, which sits low and far back in the engine bay. Putting in an RB26, you will run into the same problem with understeer and weight distribution as the S-chassis, only about 40% worse.

Just like the LS1, it's not the amount of weight, it's where that weight is positioned, so a swap of this nature won’t produce anything more than an average drag car. For amount of work, the 20B would ultimately yield far superior results.


Max.


Another word of advice: Personally, I like to DRIVE my cars, and coming from experience with my own car, stuff that initially seems like a good idea, oftentimes takes a lot more time and money, as well as patience.

If you want to actually enjoy your car and not watch it sit on jack stands in the garage, then this is another factor to consider.

Well, good luck with everything, I hope you make a good decision.
a few good points...but some are just personal opinion.
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