NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Can Get My Hands On Another Fd And 20b (https://www.nopistons.com/20b-forum-51/can-get-my-hands-another-fd-20b-12512/)

joedio79 02-18-2003 06:03 PM

I can get my hands on another fd that is in need of an engine extremely cheap, and I can get my hands on a 20b for a decent price as well. I already own and fd and I run my own shop but havent attempted an engine swap of this magnitude, Ive done honda swaps and a nissan swap but nothing this complicated. I can get most parts at dealer costs and since I have another single turbo fd I figure I will be able to work on this one on the side. I was wondering who has done the conversion themselves, what parts they used and from who, not just a list of parts but any pro's and con's for those parts from different manufacturers would be appreciated. Also I have the shop room to do it, including full two post lift, engine hoists, engine stands etc. I have an auto electrical backround and have no problem with wiring or custom fabrication. Would u reccomend doing this? and how much time/money if you would estimate as a dealer I would have to spend doing all work myself

Racer X 02-19-2003 12:34 AM

J9FD3S has done a 20B swap on his T2 but theres companies out there that sell the engine cradle for the fd to swap the 20B in easier.

j9fd3s 02-19-2003 10:41 AM

yah that hard part about the 20b --> fd is the engine mounts and the steering rack. the rack is right where the front rotor on the 20b needs to go. pettit sells a subframe that moves the rack out of the way, this compromises the steering geometry a little. the pettit subframe does let you bolt the 20b right to the existing tranny/ driveline with no other mods. the other way is to mount the engine further back, this will give you better wieght distribution, and you have the stock steering. however, the power plan frame needs to be shortened and the shifter moves back. the rest of the swap is not a lot harder than doing a single turbo and aftermarket ecu on an fd



mike

Turbo II 02-20-2003 05:45 PM

how much does a 20b run for?

Racer X 02-21-2003 01:30 AM


Originally Posted by Turbo II' date='Feb 20 2003, 03:45 PM
how much does a 20b run for?

3000-4000 before a rebuild or anything.I see them in the parts trader now and then.

FikseRxSeven 02-21-2003 07:53 PM


Originally Posted by Turbo II' date='Feb 20 2003, 03:45 PM
how much does a 20b run for?

i saw someone post that nippon sells it for the cheapest 2200......... which is an unbelievable price imo https://www.nopistons.com/forums/pub...IR#>/dunno.gif

Srce 02-22-2003 06:20 PM


Originally Posted by j9fd3s' date='Feb 19 2003, 10:41 AM
yah that hard part about the 20b --> fd is the engine mounts and the steering rack. the rack is right where the front rotor on the 20b needs to go. pettit sells a subframe that moves the rack out of the way, this compromises the steering geometry a little. the pettit subframe does let you bolt the 20b right to the existing tranny/ driveline with no other mods. the other way is to mount the engine further back, this will give you better wieght distribution, and you have the stock steering. however, the power plan frame needs to be shortened and the shifter moves back. the rest of the swap is not a lot harder than doing a single turbo and aftermarket ecu on an fd



mike

Ok Mike, so how does MVA offer their 20B swap without any mods to the steering rack or mods to the power plant frame?



The Proof or what they said at least.




MVAMOTORSPORT

Posted on Nov 25 2002, 04:43 PM





F.N.G.





Group: Members

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Everything we use is brand new, I dont have to use Pettis Sub-frame, cost we have found a way to mount the motor leaving all the factory stuff. We dont have to change you sub-frame, nor your rack and pinion, not your spindle everything stays in like factory. All my cars pass emission. 12psi(low boost) is less than 1.0 bar. Anyone else who has more question can PM me.


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