I don’t know if this had been addressed before I have tried to search for a thread that talks about this. I am looking for a spoiler that creates a decent amount of down force at high speeds and keeps the rear end down. I have an APR Diffuser and the way it is angled it feels as if the car is lifting off the ground at speeds of 80 and higher. I need something that is tested or well know to work. Any suggestions please help.

 

one that looks good?

id probably say the NISMO Type E spoiler...

The NISMO body parts are all suposed to be functional...

Alot of the other ones are going to look too aggressive to most peoples taste for a street car...

 

here are some good suggestions

 

HAHAH I'm trying to get away from the Honda mentaity but thanks for posting all those the pics!!!!!!!!

 

LOL this thread is funny

either look at the NISMO Type E

Or ING's, TopSecret GT wings. I believe they are adjustable so you can vary the angle of rake

 

Damn yo, that body kit on that chevy malibu is freaking tight....lol

 

According to this video I got from netflix "350z Shock" the Z uses Zero lift. Which I think means it doesn't use downfoce. Best Motoring did a comparison with the Skyline using downforce on an oval track and the driver stated the Zero lift was well suited for the Z. And that it felt more stable than the skyline when accelerating at high speeds. Just thought I'd share that.

 

^+1... The Z uses zero lift where as the GT-R uses downforce. The Z wasn't designed with downforce in mind.

 

Then Why at 120 Killing a WRX did it feel like my Z was gunna take right off of the highway????? Could it be because my APR Diffuser is angled up slightly???

 

the diffuser "splits" the air to cut through it rather than hit it dead on which creates resistance. Theoretically the diffuser should make the air flow faster underneath the car than above, therefore creating downforce on the front end.

 

you're suppose to angle the front APR diffuser slightly DOWN. i.e. so you created a lower pressure zone under neath the car. the air traveling over the top of the plate pushes the nose down, while the airflow going underneath creates a natural lower pressure zone, sucking the nose further down.

 

How can you tell what a good down angle is??

 

on a leveled surface. first Zero out your splitter so its parallel or as close as possible to parallel to the ground. then i'd push the front of the splitter nose end down so it makes roughly a 5->6 degree down angle from horizon. it really isnt that much.. probably a few screws worth of lengtheing with your adjusting rods in the front.

see how that feels. in all honesty, unless your on a really smooth driving surface, aka track, the variables in the the highway roads we typically drive on will negate the effectiveness of most splitters/diffusers at any speeds lower than 60mph.

also.. how far back does that splitter go? ii.e. does it go between the front suspension?

 

Ihave a pic of it in my info u can check it out. It goes back and stops right where the oil nut is u have to take out two screws from one of the under plastic pannels to get to the oil filter but the splitter covers almost half of that plastic piece

 

the chevy malibu has the ideal downward angle on it's rear wing

 

funny