Garage f1
Posted by TelephoneExternal970@reddit | projectcar | View on Reddit | 12 comments
Here is an update. I decided to go with a porsche flat 6 engine from a 986, since its a lot smaller, and give me Better aero, i reinforced the monocoque and added safety hoops.
Im currently working on a mockup of the chassis using hardboard and wood for fitment purposes.
Currently saving money too đź‘Ť
Divisible_by_0@reddit
Im all for doing things with Porsches. But for your specific use why a Porsche engine? Im going to assume you have the Boxster S 3.2 because its the highest power option, but I am asking seriously why not use a Subaru flat 6?
The specs are very similar Subaru H6 3.6L 256hp 247tq 350lbs. Porsche H6 3.2L 258hp 229tq 450lbs.
Also the Porsche engines are HUGE thats the #1 reason I have a Subaru engine in my Porsche, because it fits and it only weighs 189lbs vs the 346lb Porsche engine I wanted to use. The Porsche engines are extremely wide. The only downside to using a Subaru is that you need to build a dry sump system where the Porsche engines are dry sump from the factory.
TelephoneExternal970@reddit (OP)
Main reason is the transaxle, they are cheap, and there are lot of parts from both audi and porsche. So if something breaks i know there are parts available
tongboy@reddit
Unless you're building to a class why not run a motorcycle engine/trans? way higher size/performance than an old porch flat 6
TelephoneExternal970@reddit (OP)
I went with the porsche mainly because of the transaxle, since parts are easy to find and are a lot cheaper
Alieges@reddit
I’ve heard horror stories about several bike powered cars, mostly oiling because orientation is changed, and the amount of load over time is just too much with more weight. But you might be onto something.
What about a goldwing flat 6? Orientation doesn’t change, it’s already meant to drag a freaking goldwing… and what’s a trike goldwing weigh? 1200lbs or so?
Also, slow car fast. Say it ends up at 1200-1500lbs. Is it going to be more fun to wring out with 130hp bike engine or 400hp lack of traction burnout machine that never leaves second gear.
Alyssa_Beanut@reddit
The newer goldwings also get a dct transmission which could be quite good in this use case, the transmission is a shaft drive unit which might be more difficult to package in this application compared to a chain drive transmission though.
Alieges@reddit
I wonder if you could “hard” mount the output shaft to the input of the differential. (Bushings in 80A/90A polyurethane, hard enough to transfer fairly high power levels, with just enough give in case the alignment of output and input aren’t perfect perfect.
But then engine/trans/rear end would all need to be hard mounted together as a unit…
curious-chineur@reddit
May not be f1 grade, but could be entertaining for you: look at formula V.
Some tricked out vw flat4 get to 200 hp. Engines and components are readily available.
whatashittyargument@reddit
Every time I look at building a chassis, I always come back to Formula Vee. Huge mechanical grip, very low running costs, and running a car that has a legal class to race is a huge plus for parts, events, tuning knowledge etc.
YousureWannaknow@reddit
Ok, ok.. What's software you've been using to make it?
TelephoneExternal970@reddit (OP)
I change from a v8 to a h6 Becuase look how much the v8 sticks out, so our plan is to v8 a porsche 986, with the v8 we already have, then use the flat six for this open wheel. More update coming soon!
Kev-Series@reddit
Badass! Keep us updated!