What Motor are you thinking about putting in your F9?

[The Stig]

Ferrari V12 (from 456GT or F12).

[donk_316]

You guys are missing the easiest and best option. 5.2L V10 from a 2006-2011 Audi S6 (no, it is not a lambo engine but can sound like one)

[narkosys]

found a video on the Connaught Type-D with that little 2L v10. skip to about 7:12 to hear it purr. click over there.

[John Nizman]

Ford Performance Crate "Godzilla" 7.3L V8 comes Stock with 10.5:1 Compression, 430 HP, 475 lb/ft.

Big Block Push Rod Engine, not as wide as the Coyote Engine!

We think the New Godzilla is an interesting alternative.

John Nizman
Last Chance Auto Restore.com
FFR Preferred Builder, Canadafms-m-6007-73_bc_xl.jpgfms-m-6007-73_bc_xl.jpg

[KenWilkinson]

found a video on the Connaught Type-D with that little 2L v10. skip to about 7:12 to hear it purr. click over there.

I liked the idea. However, A 2 liter engine would hardly be strong enough to pull this car. One thought about it. A 10 cylinder 2 L engine would have lots of internal friction, a 2l 4 banger would have been a better use of resources.
Ask any 818 owner <grin>

[Alan_C]

A lot of talk about using a V12, but no one mentioned a Falconer V12. Kindigit design put one in a old Lincoln.

https://falconerengines.com/falconer_v12.php

[Passing Time]

Falconer V-12 is my vote

[Walsh3328]

well, not buying it, but Surprised no one has mentioned a Jag V12 or BMW V12.

Jag V12 is going to be a heavy lump in there but i really like the idea of a V12 in this car and at least 6.0L Mercedes also do a good V12 engine. I'm also looking at AWD options from the Nissan GTR but thats going to be a lot of chassis rework to fit it in.

[crash]

Since we are getting into "pie in the sky" type of choices now, how about a Judd V10? LOL!

https://www.youtube.com/watch?v=ROXa8Xt-64U

[DiceMan]

This is an aspirational build for me because as a college student, I can't afford to build one right now, but building a Factory Five F9 has been my dream since it was announced as the GTF. After doing a bit of planning for my aspirational build, which I'll probably be able to do in around 5-10 years if I play my cards right I've come to two very attractive engine options. For me ultimately I want to build the car, but I want to enjoy the car and drive it as often as I could get away with and one barrier for me would be the fuel efficiency of the engine.

I'm currently used to my dad's old ford with nearly 200k miles on it, but at least it gets 20 mpg. It would be hard for me to move to something without at least comparable mpg and still feel alight driving the wheels off it as frequently as I'd like... especially if I want to build it at a younger age, then double the gas prices is more significant relative to my income.

With that in mind, while I'd love to go with a Ford, I also want a minimum of 600 hp, which really limits my options, and I don't really see any options from them that meet both of these criteria that excite me. Instead, looking at chevy, like the idea of an LT4 or an LT5, they get nearly 3x the milage of their LS counterparts at the cost of a bit of reliability from what I've seen. I think it's a fair compromise. And since the fords are more expensive per hp I think the search really stops there, but idk.

I especially like the idea of stuffing one of these engines in that lightweight car. Now I've estimated the weight of the car to be 2100 lbs, with a payload of 400 lbs (myself and a 200lb buffer). I put those into a physics calculator and that's a conservative 0-60 is sub 3 sec for the LT4 and LT5. What I like about it, even more, is I don't have to deal with any of the hassle of using turbos to meet my desired power threshold or any turbo lag. In a decade when those engines are depreciated a bit, they could be solid options for me, because while I want to build the car on a budget, I won't compromise so I'll save until I can afford to build the car that I want.

Thinking about the interior possibilities already has my brain spinning with excitement, I've got some ideas already stewing based on the Phil Frank renders but I look forward to seeing what everyone else does in the meantime. Cheers everyone

[Russellmn]

Complete Tesla 3 motor setup out of a Model 3 Plaid would be truly ludicrous! It moves a 5000+ lb sedan to 60 in under 3 seconds, what would happen with half the weight??

Otherwise, probably an German V10 or V12. Unless I could track down a Murcie V12

[DiceMan]

Complete Tesla 3 motor setup out of a Model 3 Plaid would be truly ludicrous! It moves a 5000+ lb sedan to 60 in under 3 seconds, what would happen with half the weight??

Otherwise, probably an German V10 or V12. Unless I could track down a Murcie V12

While that's an interesting thought of an electric F9, the Bulk of a Tesla's weight comes from its batteries. They would also be necessary to run the F9 if you wanted to run the Tesla motors. So while the F9 is right around 2500 lbs, there are 1,200 lbs of batteries you would need to install to get the motors spinning at their maximum performance. With the motors too, you're looking at a 4000 lb car at least.

[scott.murray]

I'm definitely a bit torn between 3 options. I loved my voodoo engine in my 2016 gt350, there is the v12ls that I got to see in person last June, and Nelson Racing has been teasing a flat plane ls. While I love the voodoo, I can't make custom headers myself. Also vibration will be an issue with flat plane engines. I'm hoping I get to see the v12ls fired up come June when I make another trip to factory five. That would be the best 30th birthday present ever!

[KenWilkinson]

now available as a Crate engine. Godzilla v8 from Ford. Cheap too!

https://www.thedrive.com/news/34491/...a-crate-engine

part number M-6007-73, available for a cool $8,150

On sale, $7000.00

[Kpseverin67]

I was thinking of a Mopar (CAT) Hemi motor.

[ohmygosuness]

So...assuming we'll have a 700 lb-ft torque engine in a <3000lb car. How does one produce enough friction to keep the rear wheels on the ground without, at least, doubling the car's weight?

[Glen Davis]

Traction control

[toadster]

AWD Tesla motors

[ohmygosuness]

Traction control

That's kind of a funny solution. Since traction control's purpose is to reduce power to the wheels - which defeats the whole purpose of having a big engine. Except, of course, bragging rights...

[Harmacist]

While that's an interesting thought of an electric F9, the Bulk of a Tesla's weight comes from its batteries. They would also be necessary to run the F9 if you wanted to run the Tesla motors. So while the F9 is right around 2500 lbs, there are 1,200 lbs of batteries you would need to install to get the motors spinning at their maximum performance. With the motors too, you're looking at a 4000 lb car at least.

I'm curious on the overall weight difference, to get to 85kwh you add about 900lbs in batteries, and then a Model S drive unit is like 300lbs, and then the charger and whatnot, but you remove the engine weight, gas tank/fuel weight, as well as rear end (depending on what you're using, could be chunky). I know it would still be heavier than a gas setup, but id be curious to the more exact weights?

[KenWilkinson]

On sale, $7000.00

Motor1 : Ford Twin-Turbo Godzilla Engine In Development: Report.

News on twin turbo Godzilla


https://www.motor1.com/news/510476/f...odzilla-rumor/

[narkosys]

something that came to mind. I wonder if you would be able to grab the entire driveline off an Audi quatro and make the F9 AWD.

[BLUE KNIGHT]

On sale, $7000.00

Just looked at Summit Racing .... $ 6849.99 ... not fully dressed , but a good start ..... Mike

[Glen Davis]

Something crazy. How about an Aston Martin-Cosworth V12? 6.5 liter 1,000 HP @ 10,500 RPM with a 11,000 RPM redline and emission compliant and weights only 454 pounds. All you need is $$$$

[Kay_B]

something that came to mind. I wonder if you would be able to grab the entire driveline off an Audi quatro and make the F9 AWD.

Not bad idea. Audi is good at stable operation of key components, Audi's transmission is reliable, it can serve as a basis for upgrading a car.

[johnnybgoode]

I'm not really crazy about EFI motors but if I had to chose I think a nice simple naturally aspirated LSX454 would be a great fit for an F9 project.

[Coxal_Dae]

Sadly I don't think a big single turbo 6BT will fit under the hood so either going with LS or 3/4 rotor depending on what the bank account says.

[KenWilkinson]

Just looked at Summit Racing .... $ 6849.99 ... not fully dressed , but a good start ..... Mike

Whatyameanbunky not dressed? Just needs a belt and air cleaner :-)

[donk_316]

Viper 8.4L V10 and it’s small and light.

[Kay_B]

I would not mind a Ferrari or Aston Martin engine. They are reliable and powerful. I also like engines from old American cars such as Chevrolet or Ford from the 60s and 70s.

[Rigdotcom]

Contemplating an sts turbo 416 lsx that I'm building. STS to keep all the heat from the turbo out of the engine bay and save the carbon fiber.

[Chadillac]

I'm hearing rumors that the 2023 Corvette Z06 will have a flat-plane crank 5.5L NA V8 with a redline of ~9000 rpms. I wonder if Chevy will sell it as a crate engine and if it will have the same vibration issues as the Ford Voodoo engine.

[Jim Frahm]

I’d like the 4.7L Ferrari engine out of a late model Grand Turismo.

[RoadAppliance]

I’ve got a few thoughts on this one:
1) inline 6, Toyota 2JZGTE, Nissan RB25DET, or BMW B58
2) inline 4, Honda F20C with a little turbo to spool fast.
3) 3 or 4 rotor wankel, of course turbo as well
4) hayabusa motor.

Either way, if you hadn’t noticed I’m think high revving antics and a HP goal between 350 and 450.

[Mudpie]

How about the new Mopar Hurricane 3.OL twin Turbo Inline 6 cyl? Are they even available as a performance crate engine?

[RoadAppliance]

I’d be good with that too from what little bit I’ve seen on it. Wasn’t aware of it when I posted the three other I6s I listed

[Alan_C]

How about an LT4.

[gh426]

Since it comes Painted, red or CARBONED, 6.0L express van alum block, t56 OR CD009 with a fabot clutch kit, usable 1st gear ratio. maybe one big s470 turbski or twin, whatevers availible 4 asthetics or asmatics ur choice. since v8 weight is further behind front axle line vs V10-12 HENCE better weight distrobution.. all that saved up $ will put GAS / 50 ethtenol in it!!!. 50 state parts availibility... LS all of it!!!! anybody got a date or cost? of said F9, should it ever come to market.


gh426

[blitzace1]

I am thinking more along the lines of a V10. One thing I do know is that I DO NOT want it to sound like a muscle car. To me, this car is an exotic and should have the proper song. I may see if I can wiggle one of Borla's polyphonic exhausts into the mix.

My thoughts exactly. This is not a muscle car. it should not sound like one. As much as I love muscle car sounds (Ford Coyotes sing a heavenly song) it would just be awkward in this build. It would be the car version of a giant muscular man with a squeaky, high voice.

That being said, part of why I'm here is to look for ideas and a starting place to figure this out for myself.

It looks like we might have a year or two before we can pull the trigger, so I'm trying to plan and prepare as much as I can.

The Audi Ideas I've seen are nice. I'm kind of partial to Ferrari or Lambo v10, it's just up to finding a good one for a decent price relative to what it is that's also reliable enough to not need a rebuild.