dgross7's STF build thread
Using this thread to document/share my progress both as a driver and of my car.
Improvements to date:
Koni 8611-1256 race inserts
Goodridge ss lines
SPC rear arms
Racing Beat exhaust
SU trans mount
cp-e passenger motor mount 60 duro
cp-e rear motor mount 65 duro
Wheel & Tire
Rota Slipstream 15x7.5
O.Z. Alleggerita 17x7.5
225/45/17 Michelin PSS (travel tires)
Just last week I purchased the speed3 brakes from a fellow member.
Weird thing I realized and I want to say I remember reading it somewhere but haven't been able to find it. Notice the dust covers sitting on the ground next to the car. They did not fit with the larger rotors so rather than try and bend them out of the way and risk the cover contacting the rotor, I just removed them. Maybe I'll purchase the ms3 dust covers one day, or I'll just cut back the stock ones I have, not worried about it too much right now.
Just FYI VTCS flap removal bumps you to street modified at least.
Otherwise looks good. Will be watching. I'm casually running stf because I want to fix the "Mazda problems" it came with... motor mounts and wheel width in particular.
Edit: do you have your old 3S caliper brackets? I have an I model and want to run the S brakes myself. I think the speed 3 brakes are heavy and over kill for autox... if you plan on track driving they're a great choice then though.
Right now I am torn on the brakes. While they are a definite improvement, I wonder whether the change to hawk HPS pads or the speed 3 calipers made the largest improvement. I only had stock pads on before.
And thanks for bringing the flaps to my attention, after reading more carefully I see I am not allowed to modify them.
From my experience AutoXing, I'll give you two options.
1. You're a dedicated, serious Autocrosser for life. Read the rule book like it's your bible, be prepared to make substantial changes to your car to stay competitive/within the rules year by year when they change.
2. This is the gateway drug that leads to track days. When you get tired of autocross, and want another challenge, you'll naturally make that progression. If that's the aim, then mod whatever you please, don't worry about what class you're in, and just concentrate on learning car control before you move into higher speeds/track days.
I chose option 2. in my Miata, and loved every second of it. By the time I quit autocrossing, I was in SM2 in a naturally aspirated Miata getting murdered, but didn't care. I was just on my way to track days, and as long as I got faster than last month I didn't care how far down in the class I was.
Right now, I really enjoy autocross. With that said I would like to move to track days eventually, but I feel I will still enjoy being competitive in autocross.
I really appreciate the advice though, philrab!
I will go for EBC yellow pads next, others here have reported they are way better than HPS for autocross. I'll do those and 3S upgrade at the same time likely.
C&D did a good comparison of a selection of brakes. I came across it when GrifN was trying to figure out what to get (wanted stock but enough convincing from all sides was that was a bad idea).
But yeah, pretty good short read. HPS are good when cold, but AWFUL for trackdays, surely fine for AutoX, but once warmed up they begin to fail very fast; friend in a speed miata learned that the unfortunate way at the last track day. My new brakes have HPS pads and I will absolutely be swapping the fronts at least for something with more bite.
Otherwise, I've been very happy with my EBC Yellows. Plenty of dust compared to stock but that's to be expected, braking is excellent, and when up to temperature also great. I only had an issue with mine once at that trackday, pushed to hard, had a bit more fade than I wanted, but oddly that only occurred once.
I had the HPS pads before I switched to the EBC yellows (still have the HPS on the rear actually with Yellows up front). As Tony said up above the HPS is pretty much a regular pad marketed by Hawk as a "performance pad." It wears like a regular pad, it dusts like a regular pad, it stops like a regular pad. There is really nothing high performance about them and they are not better than the oem pads...maybe even worse (ie less bite). HPS to Yellow is a night and day difference. Waaaay more initial bite and ultimate stopping power than HPS hot or cold. It will take awhile to readjust your brain and muscle memory because they quite literally need half the pedal pressure as the HPS to brake the same distance.
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