Rake
 

Hey guys. I was wondering if anyone is running with a "raked" setup. I'm curious to see how it looks. Wanting to put a pretty meaty tire in the back, but nothing obnoxious. Post some pictures if you have them!

It will look silly.

Why are you only running a meaty tire in the rear? Are you drag racing? If so then what does it matter how it looks..

Also keep in mind that you change the weight distribution of the car doing something like this and it may not handle how you want.

I guess it all depends what the end goal here is.

Like this?

https://assets.hemmings.com/blog/wp-...6MM_Jungle.jpg


I kid, I kid!

Ok, seriously though, what're your goals here? Are you going for just a look, or is there some performance intent here?

I'll be honest, I'm not 100% certain what direction to take. I am aware it will handle differently, and no I'm not looking to drag. Like I said, I'm not going for anything obnoxious. A subtle rake.

Lol, definitely not. I guess I'm going for more look, but nothing to the extent to take away the full nature of the car. I don't track it, nor do I plan to. It's my daily and I'm active at shows and meets.

Leave the car alone then. Not sure why you'd want any sort of rake?

From a technical aspect, the last thing the car needs is proportionally more rear tire. It has a front weight bias, so it theoretically needs more front tire contact patch than rear.

If you were going for a bit of a California Rake aesthetic, perhaps a same width but taller aspect ratio might accomplish that without overly messing up the overall handling, but it certainly won't improve anything other than having that specific look.

What tires and wheels are you running now?

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Same subject but a different take on it would be chassis rake, via changing the roll center axis. Lowering the front end or raising the rear would accomplish this, but whether it would help or hurt the handling is something I'd have to defer to the guys that have done the measurements and sorted it out on-track. Chassis rake is a useful and important handling tuning facet, I don't recommend changing it just for funsies.

Just going for something different, man. Not everything has to make sense.

I'm not going for a drag look. Just trying to see if anyone has ran with a slight rake on this platform. I'm looking at running with the Ambit RT5s and I believe I could pull off a slight rake with them.

That all makes sense. Could you give me an example of "California Rake?"

I think most people run a little bit of rake on this car. I personally set my ride hide at about 5" from the ground to the pinch welds front and back. That way as the fuel gets lower and/or I remove the trunk junk, I can get a little bit of positive rake. I'm not a fan of the dead body in the trunk look.

That funny car picture I posted would be the most extreme example of California Rake. In traditional hot rodding it's simply running a taller rear tire to improve weight distribution during launch at the drag strip.

Slight rake is good for aero, basically makes the entire under body a large diffuser.

Do a reverse rake and have the front sit taller.

You trying to take off or something? :iono:

No, it's good for launching in reverse.

#fwdstatus

I was running a slight chassis rake for a bit, mostly for the aero benefits listed above, and the slight aesthetic benefits 😉. Got rid of it though, cause it was causing the front of the car to be just low enough that I was scrapping more then I liked coming in and out of some driveways. Car isn't crazy lowered either, maybe a hair over 1" from stock.

Oh and I'm running a square tire setup.

Rake can also be used to alter suspension geometry in a way to reduce understeer. That can be a benefit if done right. It should still be kept fairly subtle though.

I don't recommend different size tires front vs rear for most people.

- Andrew

As a follow up, if you were to prepare a car that had some rake, (say a spirited DD or something,) how much of a differential in height would you use? a couple mm at most I'd imagine, (3 or so?)

If we're keeping it theoretical, the roll axes on the Lotus Elise were set up such that having a positive rake of 5mm [front 5mm lower than rear] gave the best overall balance; roll center axis and aerodynamic effect with its flat floor.

Looks like a little rake on these:


http://speed.academy/wp-content/uplo...S-TRACK-01.jpg
http://autoguide.com.vsassets.com/bl...-FRS-RS-03.jpg


As long as you don't go nuts it should look OK.
Mind you I come from a generation that did this to our street cars:
http://4.bp.blogspot.com/-oWa_earKZ3...gg5o1_1280.jpg

That's about the difference I have on my Forester XT, it helped keep things from touching on launch at autox and kept the rear gripping and the COG down.

That sounds like it'd be REALLY bumpy...

Here's an old pic of mine:
http://res.cloudinary.com/lagbv048w/...w_Wheels_1.jpg

I think that top picture is along the lines I'm looking for, with the height of the release series below. Not looking to go much lower than stock.

This is almost exactly what I'm going for stance wise. It's subtle.

Come on....go gasser style :)
https://s-media-cache-ak0.pinimg.com...1cc3ef16ab.jpg

I have a bit in mine. Not a tonne.

It looks good!

Keep that mofo perfectly level and be done with it. No stagger, don't jack it up.

Every mm of this thing looks best when appearing as glued to grade as possible.

This is an old pic with my old Tein Flex Z coilovers. It had a slight rake. I think the rear's were like 2-3mm higher than fronts.

http://s22.postimg.org/5f17yyhi9/IMG_1457.jpg

Forgot to mention that I was running 245/40/17 Sport comp 2's. I'm not experienced enough to tell you how a rake effects this car. But all I know is that with the Flex Z's and the RSR Sports I, I had the same rake set up and the car feels very planted in the turns and stable. I'm running -1.5 degrees of camber in the front and -2.0 in the rears. Very confident inspiring around the canyons.

That's awesome. Good to know! Thank you!

Mine is on lowering springs designed to give it a little rake for better handling.

Just to add, this is what I would be going for "rake" wise. I really like this stance.