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Old 03-24-2011, 04:16 PM   #1
Drivinwest
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Default What motor would you build for an FFR 818 (WRX-based kit car)?

Hey all,

I'm thinking about picking up a Factory Five Racing 818 once they come out. In the meantime I hope to build up the engine that will eventually end up in the 818. I know the standard practice for WRXs, but the 818 is a different animal:

Mid-Engine
Rear Wheel Drive Configuration
1,800 lbs

Given the weight of the 818, I'm tempted to go for a high revving 2.0L rather than a 2.5L.

Any thoughts?
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Old 03-24-2011, 07:14 PM   #2
sidewayz
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1- this doesn't belong in the built motor discussion, I would have posted this in the general forum
2- you probably wont be able to "pick one up" when they come out due the the overwhelming demand they will have
3- If it even ever comes out
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Old 07-26-2011, 10:52 AM   #3
2Slow4You
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Quote:
Originally Posted by sidewayz View Post
1- this doesn't belong in the built motor discussion, I would have posted this in the general forum
2- you probably wont be able to "pick one up" when they come out due the the overwhelming demand they will have
3- If it even ever comes out
It will be coming out, probably sometime in 2012. The chassis development is long done, theyre planning on doing 3 different body styles.
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Old 07-26-2011, 10:56 AM   #4
OrbitalEllipses
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Drop in EJ207. All day everyday. Twin-scroll on a super-light platform like that? **** yeah!

Last edited by OrbitalEllipses; 07-26-2011 at 11:10 AM.
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Old 07-26-2011, 03:11 PM   #5
P&L Motorsports Inc.
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I'm a sucker for a growl. I wonder if an EG or EZ H6 would fit?
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Old 07-26-2011, 03:16 PM   #6
todeswalzer
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Quote:
Originally Posted by P&L Motorsports Inc.
I'm a sucker for a growl. I wonder if an EG or EZ H6 would fit?
It probably wont unless you modify the chassis itself....they (factory five) say it wont as space is mighty tight back there
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Old 07-26-2011, 03:47 PM   #7
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Quote:
Originally Posted by sidewayz View Post
1- this doesn't belong in the built motor discussion, I would have posted this in the general forum
2- you probably wont be able to "pick one up" when they come out due the the overwhelming demand they will have
3- If it even ever comes out

Really?

Be constructive!!!!! The guy asked a good question. Probably belongs in the swap forum but its engine related.

Personally I would look at one of MPS's 2.35L destrokers. Should work refect in this setup for sure!!!
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Old 07-26-2011, 04:39 PM   #8
OrbitalEllipses
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Quote:
Originally Posted by Sinister redlines View Post
Personally I would look at one of MPS's 2.35L destrokers. Should work refect in this setup for sure!!!
Good option for those that don't want the hassle of dealing with the EJ207. Either one is a good choice IMO.
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Old 07-26-2011, 04:58 PM   #9
WrXtaCy2003
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Wow, this thing is sick. I am 100% buying one if it ever comes out, especially at the projected pricerange.

Anyways, I would actually say the opposite of what you thought....considering how light the car will be I would build a 2.5l that revs out to 7500, utilizing a .63 ass housing gt3076r, have full power by or before 4000rpm, and can pull it to 7k and still have little power loss up top. A built 2.5 with 28psi on that 30r will make almost 500whp on e85. And that will be more than plenty to get that thing moving, REAL fast. I say this considering the not so good oiling that comes along on the ej's. Building a 2.5l that revs to 7.5k all day is easy enough and should be plenty of uuumph for this car. And I don't even see the need to wanna rev this car out? What would be the purpose? Just my .02.

P.s. When this car comes out and I buy one, I'm gonna do exactly as I stated above.

DK
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Old 07-26-2011, 05:08 PM   #10
Team Scream
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the website is way too vague.
What is this thing supposed to look like?
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Old 09-25-2011, 05:17 PM   #11
jaypine
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Wish they would make an AWD...a cheaper, better looking version of the Murtaya.
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Old 09-25-2011, 11:54 PM   #12
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I really really like where this is going. I have always wanted to do something like this and if the 818 comes out I think I will. I think the EJ207 with the stock TS turbo would be pretty great.

Last edited by dexterous; 09-26-2011 at 12:00 AM.
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Old 09-26-2011, 12:03 AM   #13
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Quote:
Originally Posted by WrXtaCy2003 View Post
Wow, this thing is sick. I am 100% buying one if it ever comes out, especially at the projected pricerange.

Anyways, I would actually say the opposite of what you thought....considering how light the car will be...A built 2.5 with 28psi on that 30r will make almost 500whp on e85. And that will be more than plenty to get that thing moving, REAL fast.
DK
500whp on 1800lbs!!! LOL, get your will together because you're going to die! You'll be happy when it happens but dead none the less...
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Old 09-26-2011, 02:50 AM   #14
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20G or similar, so you can have a nice wide powerband without taking any extra steps to raise the redline. At 1800 pounds, I'm sure ~350whp will move you around just fine.

Twin scroll 20G would be icing on the cake. Is the chassis going to be compatible with existing Subaru headers and up-pipes? If not, then a twin scroll setup is going to require some extra exhaust fabrication.
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Old 09-26-2011, 10:57 AM   #15
ewinters
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destroked 2.5 (2.35). rev that bish out to 9k
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Old 09-26-2011, 12:23 PM   #16
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personally a stock 2.5 would be rocking. 300 hp in a 1800lb car sounds like a perfect combo.
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Old 09-26-2011, 12:34 PM   #17
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since I've put a lot of thought into this as I'm embarking on my own exo car build with a few old FSAE friends; I'm going 2.1L stroker with a front mount TD05HR-16G OR a Rotrex on one of my 2.34 long rods. Not broad and flat tq curves with manageable power
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Old 09-26-2011, 03:01 PM   #18
B.R.E.D
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Money is no object
EJ22T Block
one of those fancy new 77mm stroke cranks we have been promised (wink wink)
My custom pistons
custom pauter rods
Dry Sump
GTX30R on a custom low mount manifold

Atleast thats what I'm thinking for mine.
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Old 09-28-2011, 01:18 PM   #19
5lipstream
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Quote:
Originally Posted by B.R.E.D View Post
Money is no object
EJ22T Block
one of those fancy new 77mm stroke cranks we have been promised (wink wink)
My custom pistons
custom pauter rods
Dry Sump
GTX30R on a custom low mount manifold

Atleast thats what I'm thinking for mine.
LOL that would cost more than the entire rest of the project...


As for 500whp on 1800 lbs... search youtube for 650whp ariel atom. giggety.
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Old 09-29-2011, 08:00 PM   #20
dexterous
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I have decided to rebuild my Element Pro comp motor so maybe I will put that in an 818 some day. If I do it will be at low boost with an Element GT52 turbo (52lb 20G) which will still be around 450whp.
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