[parish8]

I am installing all the bmr stuff soon.

Let's say I am 50% drag race and 50% street driving with no aggressive cornering ever. In fact I will be running drag radials all the time. What alignment specs would be ideal. I want it to be stable at high speeds.

I suspect the camber would goto 0 for the rear? What about rear toe? What about the front specs?

Here are the stock specs I found on another thread.

2016 Camaro SS(FE3) Alignment Specs,

...............Camber .................Toe
Str Front -.75 deg +-.8deg .2deg +- .2 deg

......Rear -.9 deg +-.8deg .2deg +- .2 deg

Track Front -1.5 deg +- .15deg .1deg +- .05 deg

.........Rear -1.25 deg +- .15deg .1deg +- .05 deg

[Alpha1BC]

I don't have a ton of drag racing experience, but based on other experience my suggestions for starting alignment would be:

Front: Street camber (-0.75 deg ±0.8 deg), street toe (0.2 deg ± 0.2 deg)
Rear: closer to 0 (maybe 0.4 or 0.5?), street toe (0.2 deg ± 0.05 deg)

From here, you could make other adjustments and tweaks as desired.



Now for the long-winded and detailed reasoning why:

Are you increasing front tire pressure and decreasing rear pressures for drag racing? Increased front pressures will make your front alignment changes have less impact, but in general here's how changing your alignment should change the characteristics of the car (I've not played around with these cars too much, so I couldn't say for sure):

Front camber: More negative camber (negative being top angled in) means more grip in the corners, but will wear tires faster. I suggest keeping factory camber to have a good balance of street cornering ability and tire life. Front camber won't have a big impact drag racing performance

Front Toe: More positive toe means more stability at high speeds but slightly more rolling resistance. I personally wouldn't go any more negative than street because when drag racing. You'll have less weight on the front tires when you accelerate and, if anything, might want more positive toe to have better stability.

Rear camber: I'd say you can try going closer to 0, but definitely stay negative. When the rear suspension compresses from weight transfer, the rear wheels will actually shift to a more positive camber. Ultimate goal is to have close to 0 camber when compressed, so you'd still need to be negative when getting an alignment. With decreased tire pressures, you'll probably see the most gain with changing

Rear toe: Again, more positive toe will generally mean more stability with slightly more rolling resistance. I suggest keeping this relatively close (say, within 0.2 deg) to the front toe to avoid upsetting the car's balance if you ever get into any emergency maneuver situations on the street. I also would suggest setting the LH and RH toes to be within 0.05 degrees of each other, as weight transfer (and decreasing tire pressures) will make differences left to right more noticeable.

Again, I don't have much experience with drag racing or setting the alignment on these cars specifically, but I do have some experience with general alignment and tire changes and how they should impact the behavior of the vehicle.

Best way to know for sure is to try it and find out!

[parish8]

You think the rear camber will go toward positive when launching(squating)? I assumed it would go toward negative(in at the top?)

Thanks for the Reply.

[Alpha1BC]

Originally Posted by parish8

You think the rear camber will go toward positive when launching(squating)? I assumed it would go toward negative(in at the top?)

Thanks for the Reply.

Yeah, you're right. I confused myself when writing my first post haha. More negative camber (top in) and more positive toe (front out) when the rear squats.

In this case, you'd actually want rear camber to be slightly positive at curb to get closer to 0 camber when it squats.

I'm also wanting to revise the toe recommendations. I'm almost thinking the track toe settings on the front and rear would be better, or even push the fronts closer to 0 to decrease the effective rolling resistance. Probably not the biggest gains to be made, but could still be worthwhile if you can live with the resulting street performance. I'd still recommend trying out a few different toe settings to find one that balances street and strip performance to your liking.

[Cdflyer]

A bunch of camber up front will not hurt during drag racing. It aids in high speed stability as well, especially in a straight line. If you've ever seen one an 8 second car that stands on the bumper, you'll see how cambered the front end is.

I found this shot of a friends Camaro. You can kinda see where his is. This car goes 8.50's after doing this.....every pass.

[laynlo15]

Actually the rear will negative camber during the launch because of the independent suspension and the front will go somewhat positive until it settles down.

[OB0001]

so what would be the best alignment specs to give my shop ?