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S197 grill opening

4,221
3,787
Exp. Type
W2W Racing
Exp. Level
20+ Years
Pleasanton: 1/2 way between Sonoma and Laguna Seca
With proper ducting and hood venting you can block off the grill completely and pull entirely from the lower opening. If you find yourself removing the grill "to get more air in" that means "you aren't getting enough air out".
Its all about evacuating the underhood air, not packing more air in for improved cooling, more downforce and reduced drag. To pull this off though you really have to have very efficient ducting that was fabricated with this in mind. Now I have very good ducting but it was meant for use with a grill, so while it's very good, it was not meant specifically for a blocked grill. This weekend I'm racing at Laguna seca. It will be in the 80's. I have a spare grill that I have almost completely blocked off with a very fine mesh. I am going to see if I can get away with this without reworking the ducting to be 100% enclosed (save the opening at the bottom) which is the proper way to do this. I'll let you know what I find.
However, the question of "can I block the grill opening" is YES provided everything else is optimal.
Proper ducting, proper hood venting and of course no A/C condenser etc impeding the flow.
Lots of cars are set up this way. My experiment is "can I get away without re doing my current ducting".
Stay tuned.


229122174_212542884174503_1887659156036787097_n.jpg
 

Bill Pemberton

0ld Ford Automotive Racing Terror
5,549
4,081
Exp. Type
W2W Racing
Exp. Level
20+ Years
Blair, Nebraska
Honestly not sure if it is worth all the work since it seems so many have issues with things overheating whether due to racing at Altitude or just with how hot the weather is now during many of the months one is racing. My Boss S seems to run around 197 -206 on track regardless and none of my prior vehicles have run anywhere near that. Like TMS Boss and others , I removed the entire grill while running at Hi Plains Raceway ( high desert , Colorado ) and again did it at a super hot day. The Tiger hood really helps a lot , but I guess my thought is why block off the front for a small amount of aero at most tracks , when cooling is so much more beneficial for the life of the car.

PS - aluminum sheet headlights up front just like yours , ha.
 

Jim Ryder

Retriever Racing
31
80
Exp. Type
W2W Racing
Exp. Level
20+ Years
machesney park, ill.
I'm looking for a little more front downforce. The angled headlight covers may add a little and probably will add dive planes as well. all in all the car is running great, just trying to get a little more out of it! I had a awesome weekend at Blackhawk Farms, got it down to 1:17:56! last years best was 1:19:48. Wider wheels and tires are the next big step when ever the budget will allow!

20210821_135007.jpg
 
4,221
3,787
Exp. Type
W2W Racing
Exp. Level
20+ Years
Pleasanton: 1/2 way between Sonoma and Laguna Seca
I'm looking for a little more front downforce. The angled headlight covers may add a little and probably will add dive planes as well. all in all the car is running great, just trying to get a little more out of it! I had a awesome weekend at Blackhawk Farms, got it down to 1:17:56! last years best was 1:19:48. Wider wheels and tires are the next big step when ever the budget will allow!

View attachment 67829
what is that addition to the bottom of the nose there....where did that come from?
 
4,221
3,787
Exp. Type
W2W Racing
Exp. Level
20+ Years
Pleasanton: 1/2 way between Sonoma and Laguna Seca
Ah yes! I've admired your work! You make good stuff! a real craftsman!
So are you, very nice stuff in your build.
Can you imagine not being able to make your own stuff and having to rely on others for everything?
I've seen some of the work out there and the prices....no thank you.
 
45
28
Exp. Type
Autocross
Exp. Level
Under 3 Years
Colorado Springs
So are you, very nice stuff in your build.
Can you imagine not being able to make your own stuff and having to rely on others for everything?
I've seen some of the work out there and the prices....no thank you.


Easy big fella... oh, you said EVERYTHING. Im not offended any more. I like to think of it as outsourcing.
 

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