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20b In Fc/fd

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Old 07-28-2003, 06:03 PM
  #31  
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Banzai, definetly do a diary



No it's not necessary to run a V-mount, but every little bit helps, and yes rotaries run much hotter than, as j9fd3s said, the uppy downy motor.
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Old 07-28-2003, 06:18 PM
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stupid uppy downy engines. whats the stock redline on the 13B engines and 20B engines? isnt it around 8K or so, which only super uppy downy engines get.
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Old 07-28-2003, 06:19 PM
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Many people on this forum have revved beyond 8k numerous times....
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Old 07-28-2003, 07:52 PM
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Originally Posted by Eric Happy Meal' date='Jul 28 2003, 02:46 PM
do rotaries actually run hot enough to where youd actually ned to do this? ive never ever heard of anyone doing it with their piston engines.
the rotary has a higher surface to volume ratio in the combustion chamber, so it puts out more heat than a similar sized pistonian. so for a 20b you need a BIG radiator



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Old 07-28-2003, 09:07 PM
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it all makes sense now. now i DEFINATELY want to see the vmounted setup
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Old 07-28-2003, 09:24 PM
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Originally Posted by Eric Happy Meal' date='Jul 28 2003, 06:07 PM
it all makes sense now. now i DEFINATELY want to see the vmounted setup
me too, i wanna know where its gonna fit.
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Old 07-28-2003, 09:54 PM
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might have to get a fiberglass front end thats a bit longer?
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Old 09-09-2003, 07:11 PM
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so where is the diary I am confused
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Old 09-09-2003, 08:07 PM
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300 hours is a bit conservitive :P



Make sure you think long and hard before you just drop a 20b in a FC. I was lucky enough to see this process unfold over 2 years on one here in Okinawa. It was built for street drags and the occasional romp at the track (3-5 times a year) I have also watched Dragon start his process on getting his 20b installed in his FD. Both swaps started with NON daily driven cars, both cars had most mounts, intercoolers, wiring fuel systems, suspension work etc done before the motors went into the bay. The FC's owners name is Beau, and has quite a bit of rotary experince. And if you read through here Dragon does as well. Both of these individuals work on their cars within 30ft of each other in 2 seperate garages. Everything has to be fabricated, lots of plannning and fitting is needed. (2 days just to get an oil cooler mated to the car the way the owner wanted it)



Being that you are 16 I think it is great that you have dreams of a 20b in the car, but in your case I would look at getting a turbo II and starting from there. You will rebuild your engine at least once while learning the ways of the rotary. You will find over time that your car becomes part of your family, and that you have to decide on food, or the new intercooler you just saw on E-Bay. Just droppping in a stock ported 20b is a chore, and not for the weak @ heart. It will be a tedious project, and you will think of throwing in the towel more and more as the engine takes up space in your house, garage or storage shed. Now you may just want a stock 20b for a while, but understand as most of here are looking to get the last ounce of performance in these engines, stock will not keep the smile on your face for long.



In both cases of the cars I have seen built both owners started with a stock block and port to get everything fitted, running and tweaked, each individual although highly skilled rotary fanatics, still had to farm out some of the work (FC: exhaust manifold and intake manifold, and all the intercooler piping) and they both transfer services between each other including tools. Dragon has been fitting the engine in a spare FD for a little over 6 months, and just now has decided to begin the project in his own.



I say 300 hrs is conseritive because something always comes up, money is never where you want it to be when you need it NOW. and the more you get closer to getting it done, the more frustrated you will become.
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Old 09-09-2003, 09:26 PM
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300hours is a guestimate based on how long it took me to do mine (barebones, stock engine and turbos), or 6 months of weekends.

i prolly have another 200 or so hours into it since it was running, this is only the 20b swap too cause i still have the same shitty brakes the car came with



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