[Bigger is Better]

Hi Jack,

I dont do the really high speed stuff but on the track and hillclimb (before I crashed that is) I did run a front spoiler extension and splitter on my 80 TA. While it was seat of the pants the front end was really more grounded above 100Mph, I used to say at 115 Mps it felt like it was doing 70 without the splitter.

The science is pretty solid, there is a great basic book if you want to read it, "Competition Car Downforce" by Simon McBeath, they are at least edition 2 now.

I think in your case you want to get your spoiler as low as you can get it to the ground but you will need to think about the car at full suspension compression and not have it hit. What you really dont want is the spoiler to break at speed, it could cut a tire or really upset the balance of the car if you are in a corner. So you want to build it strong with some bracing.

A lot of guys will build them out of Aluminum and on a road course let them grind to fit them selves but I would try to keep it higher. I dont thing a rubber extension on the front will do much unless it is braced well, there is a lot of air force and I think it would bend over.

You might also want to consider some side skirts, you can attach them to the rocker/floor board flange. I never did that as my rules didnt allow it but it also helps from keeping air from coming under the car from the sides and increasing lift.

I dont have any specific suggestions for your car as I dont know them well enough to make any mounting suggestions.

Good luck at the race, thats on my bucket list and would love to come do it one day!

Johnny