Honey Badger's Completely Off-the-Rails Race Car Build and Track Adventure Thread

[honeybadger]

is there any merit to tossing all the vac boost and going linear? Of course the pedal/caliper ratio will need a massive change because otherwise as we know modern car brakes are basically completely worthless without the booster even if you're trying to break the seat by bracing against it.

That's actually where I'm going and the preferred install method. Tilton pedal box has dual master cylinders (one for front brakes and one for rears) that go straight into ABS unit and that sends it out to the 4 calipers.

This car won't use vacuum for anything - even though the dry sump will pull a crap ton of it. Figures. I finally fix my vacuum issues only to no longer need them ha. Not complaining, though. Bosch ABS has always been a bucket list item for me

 

[TrackRat350]

Looks pretty sick.. Love the dry sump and Bosch ideas..

 

[honeybadger]

The full AP kit came in while I was on a work trip last week. So pumped about this kit. Total weight savings is about 45lbs of unsprung mass

Stock calipers/pads (add 30lbs for stock rotors) - 44.7lbs

AP kit is 32.2lbs - so 12.5lbs per front corner

Rear stock setup is 27 lbs (when you add 20lbs for stock rotor). I estimate about 3lbs for parking brake stuff based on previous weigh-ins

AP kit is 20.4. So 6.6lbs + 3ish lbs makes it a 10ish lbs difference in rear

And these weights are for the monster 25mm endurance pad/caliper setup. Super pumped

I purchased through Anthony at Drive Faster Now. He'll get you the best price, help make sure the setup is optimized for your car (we ordered some different parts since I am using the Bosch abs) and treat you great. Highly recommend

 

[ChipG]

Is there parking brake capability with the new brakes? I'm not seeing anything. "No" would be not surprising for a track-only car, but make the kit a no-go for street use.

 

[dem00n]

Does that AP front caliper let you run a 18 inch wheel?

 

[JAJ]

Is there parking brake capability with the new brakes? I'm not seeing anything. "No" would be not surprising for a track-only car, but make the kit a no-go for street use.

I expect @honeybadger will use that torch of his to make a hole in the floor in front of the driver's seat. That way, he can go full Fred Flintstone when he wants the car to stay still.

 

[honeybadger]

Is there parking brake capability with the new brakes? I'm not seeing anything. "No" would be not surprising for a track-only car, but make the kit a no-go for street use.

There is a parking brake option from AP https://www.essexparts.com/ap-racin...r-cp9450365mm-ford-mustang-shelby-gt350gt350r

Not sure it's worth the investment, though. The stock brakes are pretty good in the rear and consumables are relatively low. And given the front bias of a mustang, not sure you'll see much performance gain. I know plenty of folks go front only.

Does that AP front caliper let you run a 18 inch wheel?

Yep. That's the strongest justification for the change - though AJ Hartman is working on a solution to shave the OEM knuckle and use the stock calipers with different pads and rotors.

These calipers should offer some extra performance over the OEM ones - specifically around managing heat. And I'm told the Bosch ABS will be able to extract a bit more out of them.

I expect @honeybadger will use that torch of his to make a hole in the floor in front of the driver's seat. That way, he can go full Fred Flintstone when he wants the car to stay still.

Ha. Funny you should mention that - I have some holes in the floor I need to fill haha

 

[WItoTX]

Yep. That's the strongest justification for the change - though AJ Hartman is working on a solution to shave the OEM knuckle and use the stock calipers with different pads and rotors.

Did I miss his discussion of this over on TMO??? I would be very interested.

Though the 45 lb weight loss is no joke.

 

[honeybadger]

Did I miss his discussion of this over on TMO??? I would be very interested.

Though the 45 lb weight loss is no joke.

There's a decent discussion here https://trackmustangsonline.com/threads/gt350-brakes-with-18-wheels.15664/

He's been posting some updates on Facebook as well. I'll be interested to see how the costs workout overall. Depending on the kit, the brake pads can be cheaper for the AP kit compared to the Ford versions.

Either way, options are good!

 

[honeybadger]

Go fast parts for the engine are here. New cross plane crank (standard GT500 crank).

L&M Engine intake/exhaust cams for 5.2 CPC conversion. https://lmengines.com/collections/gt350-camshafts/products/gt350-voodoo-w-90-deg-cross-plane-crank

Hoping this combo (along with dry sump) can push 550 or so to the wheels fairly easily. We'll see. At least these cams will ensure good power up to 8k.

 

[olaosunt]

Just curious if you considered the Ford racing 5.2 camshafts (as in the 5.2 Alluminator)as an option ?

 

[honeybadger]

Just curious if you considered the Ford racing 5.2 camshafts (as in the 5.2 Alluminator)as an option ?

I did. But they’re basically the same cost and these are a higher quality part with more HP, but still very friendly to the VCT system. Felt like a no brainer.

 

[whatisgrip]

If you were moving down to 18" what setup would you be going with? I've also considered the AP kit but haven't found many street tire options in that size from 305-325.

 

[honeybadger]

If you were moving down to 18" what setup would you be going with? I've also considered the AP kit but haven't found many street tire options in that size from 305-325.

I don’t think I’d go through the conversion for street tires. I’d only do it for the cheap slicks. You can find take off slicks in 19s, but they’re rare. 18s are what pretty much everyone runs in the professional series like IMSA, GT World challenge, etc, so they’re always available.

 

[Egparson202]

I don’t think I’d go through the conversion for street tires. I’d only do it for the cheap slicks. You can find take off slicks in 19s, but they’re rare. 18s are what pretty much everyone runs in the professional series like IMSA, GT World challenge, etc, so they’re always available.

That’s the route I’ll be going. Have you already thought through which slicks/compounds you expect to like the most? Spring rates with slicks?