What are your HPDE running costs in a Grand Sport?
#41
Supporting Vendor
I've used ST47s, too. They have a bit higher bite than ST43s, but the difference was more pronounced on my Miata. On the Corvette, it felt like ST43 already had enough bite, so I preferred it since it allows more modulation.
So your pads are a tighter fit for fronts than Porterfield's? That's great to know! Why are the rears more expensive than usual? That was what swayed me away when I saw it on your site : )
So your pads are a tighter fit for fronts than Porterfield's? That's great to know! Why are the rears more expensive than usual? That was what swayed me away when I saw it on your site : )
The 1718 rear shape is another non-Raybestos shape so there are 2 places that will make them for me and they have different prices. I will probably get some of each and compare but I would like to have the lower $199 price of course.
Good info on the -43/-47.
-Ken
#42
Tech Contributor
#43
Instructor
Actually, I am buying the DBA rings and am reusing the hats so this is less than the full assemblies. I use Eric Wong with BrakeSwap and he will give a 10% discount for track guys so the DBA replacement rings are $315 each. Eric is a pleasure to work with and he also gives discounts on brake pads. You can get the PowerStop 2 piece rotors that include discs, hardware and hats from Summit Racing for about $510 each. I bought a pair of these so that I have an extra pair and do not have a swap out the hats and hardware at the track.
#44
Instructor
My consumables for 2018 - 22 total track days, 7 of which were in rain or partially in the rain.
1 set of Michelin Pilot Sport Cups
1 set of Hoosiers R7's
1 set of MIchelin Pilot Super Sports
All tires were mounted on OEM wheels
All tires except for the Hoosiers were purchased as take offs with less than 1,000 miles on them.
2 sets of Raybestos ST 43 Brake pads for Z07 front calipers
1 set of Girodisc front steel rotor rings in Z07 fitment, these lasted 18 days including rain days
1 set of Girodisc front steel rotor rings presently on car with 2 track days on them.
5 bottles of Motul 600 brake fluid - new fluid at beginning of season , 1 flush and new fluid when new pads went in mid season, 1 flush and new fluid when rotors were swapped towards end of the season.
5 oil changes.
1 set of Michelin Pilot Sport Cups
1 set of Hoosiers R7's
1 set of MIchelin Pilot Super Sports
All tires were mounted on OEM wheels
All tires except for the Hoosiers were purchased as take offs with less than 1,000 miles on them.
2 sets of Raybestos ST 43 Brake pads for Z07 front calipers
1 set of Girodisc front steel rotor rings in Z07 fitment, these lasted 18 days including rain days
1 set of Girodisc front steel rotor rings presently on car with 2 track days on them.
5 bottles of Motul 600 brake fluid - new fluid at beginning of season , 1 flush and new fluid when new pads went in mid season, 1 flush and new fluid when rotors were swapped towards end of the season.
5 oil changes.
Also, it looks like you are changing your oil every 4 or 5 track days. I spoke to GM and my dealer about this and they said change the oil when the remaining life indicator says you are close to 10-20%, although I have been changing the oil when the remaining life is about 35%, or about every 10-11 track days. I read some threads on the Corvette forum where some had the oil tested and the consensus on those threads was in the 10-12 day range. Oil is certainly less expensive than a new engine, but I am trying to find that "sweet spot" for oil changes.
#46
Sr.Random input generator
That's great!! Back when I bought them, the DBA rotor rings were only supplied with nuts.
#47
Safety Car
Also, it looks like you are changing your oil every 4 or 5 track days. I spoke to GM and my dealer about this and they said change the oil when the remaining life indicator says you are close to 10-20%, although I have been changing the oil when the remaining life is about 35%, or about every 10-11 track days. I read some threads on the Corvette forum where some had the oil tested and the consensus on those threads was in the 10-12 day range. Oil is certainly less expensive than a new engine, but I am trying to find that "sweet spot" for oil changes.
#48
Instructor
I've used ST47s, too. They have a bit higher bite than ST43s, but the difference was more pronounced on my Miata. On the Corvette, it felt like ST43 already had enough bite, so I preferred it since it allows more modulation.
So your pads are a tighter fit for fronts than Porterfield's? That's great to know! Why are the rears more expensive than usual? That was what swayed me away when I saw it on your site : )
So your pads are a tighter fit for fronts than Porterfield's? That's great to know! Why are the rears more expensive than usual? That was what swayed me away when I saw it on your site : )
#49
Sr.Random input generator
I've used them extensively on my '16 Z51 build: https://www.corvetteforum.com/forums...post1592311966
I've just started my '19 Z06 build, and I'll use them on that, too. We'll see how they fare soon (hopefully on March 23rd; my first track day of the season): https://www.corvetteforum.com/forums...ld-thread.html
I've just started my '19 Z06 build, and I'll use them on that, too. We'll see how they fare soon (hopefully on March 23rd; my first track day of the season): https://www.corvetteforum.com/forums...ld-thread.html
#51
Supporting Vendor
I've used ST47s, too. They have a bit higher bite than ST43s, but the difference was more pronounced on my Miata. On the Corvette, it felt like ST43 already had enough bite, so I preferred it since it allows more modulation.
So your pads are a tighter fit for fronts than Porterfield's? That's great to know! Why are the rears more expensive than usual? That was what swayed me away when I saw it on your site : )
So your pads are a tighter fit for fronts than Porterfield's? That's great to know! Why are the rears more expensive than usual? That was what swayed me away when I saw it on your site : )
Raybestos pricing model is not quite as robust as the pads are.
#52
Since I just had my first outing in the GS here's another data point on fuel. I went through 14 gallons in 65 minutes on track so let's call that 4.6 minutes per gallon. For comparison, the Z06 got 2.7 minutes per gallon and the ZR1 was 1.8. Realistically my fuel rate will go up some as I was short shifting some and having to lift for wet spots on the track.
Last edited by Poor-sha; 02-27-2019 at 07:12 PM.
#53
Since I just had my first outing in the GS here's another data point on fuel. I went through 14 gallons in 65 minutes on track so let's call that 4.6 minutes per gallon. For comparison, the Z06 got 2.7 minutes per gallon and the ZR1 was 1.8. Realistically my fuel rate will go up some as I was short shifting some and having to lift for wet spots on the track.
#54
Sr.Random input generator
I used about 6 gallons every 30 minutes with my Z51 at 2200 ft elevation. Sounds pretty similar. I've heard people burn through fuel twice as fast on Z06, but looks like it might be a bit better than that, judging from your consumption.
#55
Tech Contributor
Pacific Raceways in my '96 GS (VIN 0007)....
#56
Sr.Random input generator
My favorite track is Oregon Raceway Park, and it's at ~2200ft elevation. It's also a fairly new track, and a bit further away from Seattle area. The distance deters big crowds, and the club membership provides OPEN track days with 5-10 people at most; I can't ask any better! : )
Here's a drone footage I recorded, back when I was waiting for my friend to vacuum his car, wanted to check out the fields with his car : )
Here's a drone footage I recorded, back when I was waiting for my friend to vacuum his car, wanted to check out the fields with his car : )