Falken

Just for fun.

Lets assume that for whatever reason, the REN is suddenly 300lbs heavier, and 100% more powerful. You can move it wherever you could do so before, but the weight and power cannot change.

Save the handling.

Go!

Easy_E1

iTrader: (2)

If it's 300 lbs heavier then how can the weight and power not change?

Falken

I mean you can mess around with everything except my given values for weight and power.

TheWulf

iTrader: (4)

^ Not related at all, but I see some camel toe in your sig

Easy_E1

iTrader: (2)

TheWulf

iTrader: (4)

^ i love that pic (the owl... ok both)

Falken

Anyone?

MazdaManiac

iTrader: (3)

300 lbs up front? You would need more than the 100% (I presume you mean "double") power, which you have allotted.
Not a worthwhile project.

Brettus

iTrader: (2)

I lol'ed at this at the worst possible time ......

DavidR

Lol ^

swoope

iTrader: (5)

so you are saying that all of a sudden the motor is putting out ~ 400 whp but the motor also weighs 300 lbs more..

i would be thinking mid engine.

beers

TopGear8

iTrader: (3)

i say 300 lb boat anchor in the trunk then its like it never happened and handling is same as stock ren. ?? This was not a fun project.

Its not "really" about the weight, rather where the weight is. OK. so keeping the center of gravity in all the same places. i assume you mean that the 300 additional lbs are distributed as equally through the motor as the stock renesis is. So distribute 300 more lbs to the other end of the car as equally as the stock renesis is as well. its just like having a smaller car with a smaller motor. Handling is still the same.

You compare a miata with a miata engine to an rx8 with a renesis, the rx8 wins. But compare a miata with a hemi to a rx8 with a 20b engine. The rx8 still wins.. even with a heavier motor.

I dont know if that really makes sense but it did when i was typing it.

Falken

Be more specific. You would relocate 300lbs from the front to the back...how exactly?

You have an unlimited budged. Buy anything.

Explain how you figure that. Yes, I mean double. 400whp, 300lb-ft. I know the real values wouldn't be that nice but lets just go with these.

Lets assume that your allowed to move any part anywhere as long as it would still do its job there. And buy just about any part.

alnielsen

iTrader: (4)

There isn't a lot in the front that can be relocated to the rear other than the battery. There are things in the middle that could be moved to the rear which would affect the balance. Taking out the transmission and putting in a racing transaxle would be one. Remove the saddle gas tank and put a fuel cell in the trunk area would be an other. Acid dipping the front fenders would drop a little weight up front. But then you wouldn't be relocating the weight. Just removing it. And that isn't what your question is.

Falken

Well I like where this is going, so I'm bending the question.

You can remove reasonable weight from anywhere. Nothing that would make a car undriveable i.e. taking off all the front body panels.

And you are allowed any suspension parts/mods you think might help.

The transaxle is EXACTLY the type of thing I am looking for.

Keep going

nycgps

iTrader: (1)

Unlimited budget ? hmm ...

Im just gonna buy another car then, problems Solved

rafaga

iTrader: (1)

Move the tranny to the back (transaxle)?

Red Devil

I don't follow the premise, I get it, but don't follow it. There already are 400whp Renesis engines and the weight wasn't doubled.

Falken

How about a dry sump with the reservoir towards the back? Too much pipe?

MazdaManiac

iTrader: (3)

You gonna fill that sump with 37 gallons of oil to offset the weight of the motor?

04RX8man

I am still a little comfused about what we are trying to do here maybe ill catch on here in a little bit.....maybe

Falken

Nope. But every bit helps.


There is an RX-8, that for whatever reason is 300lbs heavier in the front than usual. What could one do to save the handling? i.e. relocating parts farther back, buying lighter parts for the front, suspension modifications, etc.

I want to know specifics. Don't just say "move parts backwards" say "move this part to this place". Dont just say "buy lighter parts" say "this part can be made lighter this way" or "here is a nice light version of that part". Don't just say "suspension mods" say "this type of suspension component would help, here's why".

That's what I'm challenging the community to answer.

09Factor

I say lose the Ls2 and put a Fi'd 20b in its place. This way center of Gravity will be lower and farther behind the front "axel".

Falken

Thats...a hilarious post. And I don't mean that in an insulting way. Just don't ask why.

As I said, you can move the engine anywhere it would normally go. Where would you mount it?

Nubo

You're not going to save the handling. Moving the tranny weight back may help balance, but you will still end up with a higher polar moment of inertia.