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-   -   RB25 powered FD Build! (https://www.rx7club.com/other-engine-conversions-non-v-8-118/rb25-powered-fd-build-797346/)

rXzach93fd 02-19-09 03:13 PM


Originally Posted by NiteFD (Post 8980503)
I will be in back in STL on March 14-23. This thing better be running and we need to have our Mazda cruise...

it should be back in commision next week, and I think there is a meet in like a month on driftstl...

rXzach93fd 02-19-09 07:28 PM

Updated the price list

Project Expenses
-94 FD roller..........................$4200+$1300 shipping
-RB25det....................................3000
-Apexi N1 Dual catback................300
-Greddy Type R bov.....................180
-all new interior parts...................100
- battery and relocation kit............130
-shift knob......................................5
-Autometer water temp and boost....75
- 17x9 and 17x8 Borbet wheels
with Bridgestone Potenza RE730's...1500
- new clutch master..........................40
-Megan Coilovers..............................700
-new timing belt.................................40
-intake manifold...............................250
-FMIC and piping..............................300
-q45 throttle body..............................65
-one piece aluminum driveshaft........500
-Boston 6.5'' door speakers...............120
-dual speaker pod.............................110
-Walbro 255 fuel pump.....................100
-Momo steering wheel and hub...........80
-Custom Fab labor...........................3500
-stationary lights..............................200
-Sparco sprint seats..........................500
-Pioneer Head unit............................40

up to date Total:...........................$17305.00

rXzach93fd 02-22-09 12:00 AM

2 Attachment(s)
new subframe
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new oil pan
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rXzach93fd 02-24-09 12:32 AM

3 Attachment(s)
subframe finished with motor mounts
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back to stock steering shaft
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old mounts cut off frame and smoothed down
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rXzach93fd 02-25-09 08:11 AM

do you guys have any ideas for a hood? its not going to clear since the sub-frame is back in the stock position. I would like to find something cheaper then the 1000 tech2 hood..

rXzach93fd 02-26-09 11:53 PM

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rXzach93fd 03-01-09 10:06 PM

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rXzach93fd 03-07-09 11:06 PM

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I have been really busy with work lately, but I had a chance to get a few things done. I took it up and had a 4 wheel alignment and it drives perfect now, better then my 240 ever did. I put on a bunch of silicon reducers and an air filter that came in last week, I pretty much have all my boost leaks fixed. I have been tweaking it and taking it out on test drives all night and I finally have it where Im happy. I added a fan which has helped alot. Next step is to get a new exhaust made

O yea I made the hood fit by shaving the inside of it and taking off the timing cover and backplate, but then it rested right on the belt. I just put some kind of material over the hole for the time being.

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Project D1 03-14-09 04:29 AM

looking good! Any vids up?

rXzach93fd 03-14-09 07:34 AM

the car is getting tuned right now, ill have some when it gets back

hwnd 03-15-09 01:38 PM


Originally Posted by GoodfellaFD3S (Post 8804945)
I read through the entire thread, and wasn't going to post until reading this ;)

A 13B-REW will run for a long, long time at the 300 rwhp level. Unreliable? Only if the owner does something stupid. I just don't really see the point to all this work.

I don't have anything nice to say otherwise, so I'm not going to say anything at all :)

I agree :icon_tup:

JustinStrife 03-15-09 02:10 PM


Originally Posted by GoodfellaFD3S (Post 8804945)
I read through the entire thread, and wasn't going to post until reading this ;)

A 13B-REW will run for a long, long time at the 300 rwhp level. Unreliable? Only if the owner does something stupid. I just don't really see the point to all this work.

I don't have anything nice to say otherwise, so I'm not going to say anything at all :)

Who says he'll want to stay at 300rwhp? Once he gets use to it, he'll be shooting for 400+ next. Frankly, I would be bored with 300rwhp in an FD right off the bat. Infact, the 326 mine made the last time it was running right, was okay, but not the thrill I look for in my cars. Hence my FD won't be back on the road until it's pushing at least 450rwhp...

wptrx7 03-16-09 03:59 PM

Do you have any pictures of the downpipe routing? Or anyone with this type of swap?

rXzach93fd 03-16-09 07:53 PM

I will get some pics when off it when I get a chance.

rXzach93fd 04-05-09 04:19 PM

2 Attachment(s)
I picked a couple things up while Im waiting for my car to get back from getting tuned

-Mishimoto radiator
-RE Carbon Fiber light surrounds
-PowerFc+Commander(no pic)

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wptrx7 04-07-09 10:11 AM


Originally Posted by wptrx7 (Post 9048519)
Do you have any pictures of the downpipe routing? Or anyone with this type of swap?

Any pics?

rXzach93fd 04-07-09 04:51 PM

you don't want pics of my downpipe routing, Im just using the stock rb25 downpipe, it crosses over by the shifter, the exhaust Is next on my list to get redone

Project D1 05-08-09 09:19 AM

updates?

rXzach93fd 05-12-09 08:33 AM

Sorry for the lack of updates, my car has been sitting up at my local tune shop for like 2 months waiting for a discontinued power fc for my rb25. I should be picking it up this week.

rXzach93fd 05-15-09 09:50 PM

the car is back in business and running better then ever, but now the clutch is shot lol. It never ends

ProjeckJay 09-27-09 04:22 PM

very nice build, im looking at this same swap for my 93 i was wondering tho how much of an issue was the wiring of the motor? and updates one the car tho!

FlyinFINN 09-28-09 01:57 PM


Originally Posted by ProjeckJay (Post 9524257)
very nice build, im looking at this same swap for my 93 i was wondering tho how much of an issue was the wiring of the motor? and updates one the car tho!

I think if you have to ask that question, you shouldn't do this swap. Wiring is the LEAST of your worries, and this is comming from someone who has this swap on his FD.

ProjeckJay 09-28-09 10:01 PM


Originally Posted by FlyinFINN (Post 9526216)
I think if you have to ask that question, you shouldn't do this swap. Wiring is the LEAST of your worries, and this is comming from someone who has this swap on his FD.

well i was asking about the wiring because i have been researching about doing this swap since my friend is willing to sell me his rb25det with rb20 trans for cheap as hell, i know this swap requires a shit ton of work, modifications, and fabircations. i never saw anyone talking about the wiring so i was just wondering if it was that easy to wire or a pain in the ass to wire. just figured i would ask befor i jumped in to the swap my self.

rXzach93fd 10-26-09 09:18 PM

8 Attachment(s)
here are some recent pics

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im pulling the engine this winter, I have a list of things I want to get done..

FlyinFINN 10-27-09 10:09 AM

Why do you still have all that wiring mess under the hood? Snippidy snip.

rXzach93fd 10-27-09 09:04 PM

don't worry I just pulled the engine tonight, I have a lot planned for this winter!

fstbckgt 12-24-09 04:05 AM

any work done?

rXzach93fd 12-30-09 01:04 AM

yea the car is disassembled and at the paint shop right now. Im working on replacing all the gaskets and cleaning up the engine.

yeep 01-03-10 11:30 PM

Its that a universal radiator? Or is it a car specific?

rXzach93fd 01-03-10 11:36 PM

its for a 240sx with a ka, the necks are on the same side as rb radiator

Bwek 01-04-10 05:18 PM

Thank god You changed the Subframe Id bet that if you were to slide in to a curb or take a hard enough hit You would shear those long bolts right off

Pretty Sick I love the sound of an Rb even tho i'd never swap one in I prefer the 1jz its much cheaper here in canada I can get a Complete swap Out of a front clip for about $2gs the rb25/6 got for much more than that

rXzach93fd 01-07-10 12:18 PM

my front clip was 3k, im happy how it is turning out even though i had to go through so much work and money to get it were it is now

digitalsolo 01-08-10 01:26 AM

Holy shit; I can't believe I'd not seen this until now.

I hope that you've redone every inch of work (and exhaust) that was under that car when the subframe was reworked. I've seen some ghetto work before, but, wow, words fail.

At least the new stuff you've pictured is, better. I don't know that I'd say "great" but, definitely better.

Good luck with your plans with it. A few more drafts and you might actually have something.

clint999 01-08-10 05:10 AM

bad cell phone pics, better pics will be up soon...

rXzach93fd 01-10-10 06:22 PM


Originally Posted by digitalsolo (Post 9723992)
Holy shit; I can't believe I'd not seen this until now.

I hope that you've redone every inch of work (and exhaust) that was under that car when the subframe was reworked. I've seen some ghetto work before, but, wow, words fail.

At least the new stuff you've pictured is, better. I don't know that I'd say "great" but, definitely better.

Good luck with your plans with it. A few more drafts and you might actually have something.

yea it was pretty bad, the car has completly changed though.

digitalsolo 01-12-10 12:55 AM

Good to hear. I like the concept. Looks like the execution is catching up with the idea.

rXzach93fd 01-12-10 08:59 PM

yea ill have updated pics when the car gets back from paint!

rXzach93fd 01-24-10 04:35 PM

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rXzach93fd 01-24-10 04:36 PM

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Troux 01-24-10 10:52 PM

Where did you get those RE CF light surrounds? Are they for the EVO-R kit or the RE-A kit?

rXzach93fd 01-25-10 12:13 PM

Im not really sure what kit they are for. I bought them on ebay for like $250. My light kit is all peiced togeather and the fitment is not as good as I would like. Im going to sell the whole kit and by something else eventually.

rx-7skyline 01-25-10 04:58 PM

I did the same project lots of work

Leeroy_25 01-26-10 11:18 AM

Another RB25 RX-7! Have you got a thread on this? I want to do an RB26 one.. I am sure I will get plenty of stick for it! It has only been done twice that I can find and guess it is a bit more of a mission to do! But hey.. That's the fun! I have been following this thread on and off and fair play to you buddy..
What did you do on the electrics/ECU side.. I don't remember reading anything about that. Was it hard?

Keep up the work.
Lee

infamousbkny 01-26-10 12:07 PM

Looks like a interesting and time consuming build. All in all, good job on being patient with it. What color you painting it, and what are you doing to the motor now?

Dustin@IP 01-26-10 04:54 PM

looking good

rXzach93fd 01-26-10 06:32 PM


Originally Posted by Leeroy_25 (Post 9762890)
Another RB25 RX-7! Have you got a thread on this? I want to do an RB26 one.. I am sure I will get plenty of stick for it! It has only been done twice that I can find and guess it is a bit more of a mission to do! But hey.. That's the fun! I have been following this thread on and off and fair play to you buddy..
What did you do on the electrics/ECU side.. I don't remember reading anything about that. Was it hard?

Keep up the work.
Lee

The wiring was not that bad, Im running a power fc. I still don't have my factory gauges hooked up though. I need to by a converter from dakota digital.

rXzach93fd 01-26-10 06:36 PM


Originally Posted by infamousbkny (Post 9762981)
Looks like a interesting and time consuming build. All in all, good job on being patient with it. What color you painting it, and what are you doing to the motor now?

Im painting it a house of kolor white. Right now im replacing all the engine bolts with arp bolts and upgrading all the gaskets. Im also painting the block, head, and powder coating most of the parts candy apple red.

I will have pics of the motor and the car all painted when I move in my new house here in a month or so.

rXzach93fd 01-26-10 06:37 PM


Originally Posted by fd-project-2009 (Post 9763357)
so how much did it come out and how long?

?

rXzach93fd 01-26-10 06:40 PM


Originally Posted by rx-7skyline (Post 9761383)
I did the same project lots of work

other then your lights I think your car looks pretty good. Do the rb26 valve covers fit right up on a rb25?

ByeByeSti 02-15-10 11:42 PM

Just wondering; does the rb pull pretty hard in the fd??? im picking up my mounts, aluminum driveshaft+ a bunch of other parts for my swap this upcoming weekend. and also picking up my series 2 rb25 this weekend. pretty damn excited to start in on the swap


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