| Author |
Message |
Ric Rainbolt (Ricrain)
New member
Username: Ricrain
Post Number: 10
Registered: 2-2002
| | Posted on Tuesday, February 26, 2002 - 5:25 pm: | |
I've used the Valvoline Synthetic (SynPower) in both my 308 and 348 on tracks that required a fair amount of braking, and never managed to fade either.
It's not as high up the temperature ranks as something like SRF, but it's DOT 4, fully compatible with street fluids, cheap and readily available (Autozone, Walmart, etc). Based on the tables, it's only fractionally less capable than Motul 5.1 and ATE superblue for 1/4 the price.
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Brian stewart (Eurocardoc)
Junior Member
Username: Eurocardoc
Post Number: 164
Registered: 11-2001
| | Posted on Sunday, February 24, 2002 - 3:42 pm: | |
The pedal loss is due to the heat build up, many drivers at track events tend to overuse the brakes, not daring to carry more momentum through the corner. More cooling via ducting, better grade of fluid (remember that most racing fluids are not DOT approved) along with an upgraded pad material all help. However the driver can control the temps as well by braking less, lighter, and carrying more speed through the corners, not likely to have problems on the street IMHO. |
Louis Bevilacqua (Toby91)
New member
Username: Toby91
Post Number: 7
Registered: 4-2001
| | Posted on Saturday, February 23, 2002 - 7:46 am: | |
Brian. Not quite sure what you are trying to say. Are you saying higher boiling temp brake fluid and better pads are not useful? That would be news to most track folk. It is well known that the 512TR is very tough on brakes due to its very high weight and is especially prone to clutch fluid boiling due to the close proximity of the clutch line to the muffler. The improvements I described are common for the TR in the Northeast track scene and a few have gone further by installing F40 brakes. Addinng more cooling of course is good but not easy on the TR withou a lot of bodywork and ducting.
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Brian stewart (Eurocardoc)
Junior Member
Username: Eurocardoc
Post Number: 161
Registered: 11-2001
| | Posted on Friday, February 22, 2002 - 9:12 pm: | |
Observation from track days- some people lose their brakes through overbraking, others go faster and use the brakes less. Not to criticise anyone please understand. The usual fix is more cooling, better insulation, as per earlier post. |
Louis Bevilacqua (Toby91)
New member
Username: Toby91
Post Number: 4
Registered: 4-2001
| | Posted on Friday, February 22, 2002 - 7:29 am: | |
Martin. Had a similiar problem on my 512TR with the clutch fuid boiling first and the brakes sure to follow. Solved problem with a heat shield over the clutch line where it passed by the TUBI, upgrading the brake pads and changing the brake/clutch fluid to AP Racing 551. Have not had any problems during subsequent sessions at Moroso and Sebring. Only downside is occasional brake squeal on the street. |
Randy (Schatten)
Junior Member
Username: Schatten
Post Number: 208
Registered: 4-2001
| | Posted on Friday, February 22, 2002 - 2:21 am: | |
actually Martin, I find the information very useful. if your brakes are failing like that, there's something that is failing in the process - cooling, pad, air in the lines, the lines themselves, and then boiling point. |
Martin (Miami348ts)
Intermediate Member
Username: Miami348ts
Post Number: 1503
Registered: 5-2001
| | Posted on Thursday, February 21, 2002 - 4:46 pm: | |
who cares wet or dry, when the brakes fail because of bioling my pants are wet anyhow.
Had that two weeks ago, when the brakes on my 348 failed. Thank God I thought I flet them and tested them on the straight before accelerating to 120MPH to brake heavy for the 35MPH shikane. They were GONE !!!! I would have destroyed my car!
THIS IS A WARNING TO ALL 348 OWNERS, when tracking your car, go easy on the brakes amke sure to test them regular while driving. They just go and give you little notice. No need to be a hero! |
Randy (Schatten)
Junior Member
Username: Schatten
Post Number: 202
Registered: 4-2001
| | Posted on Wednesday, February 20, 2002 - 3:51 pm: | |
Some useful information from Andie over at Carbotech.
ARRANGED BY DRY BOILING POINT:
DRY:401F -- WET:284F --- DOT3
DRY:446F -- WET:311F --- DOT4
DRY:502F -- WET:343F --- VALVOLINE SYNPOWER
DRY:509F -- WET:365F --- MOTUL 5.1
DRY:527F -- WET:302F --- AP RACING 551
DRY:536F -- WET:392F --- ATE SUPERBLUE/TYP200
DRY:590F -- WET:410F --- AP RACING 600
DRY:590F -- WET:518F --- CASTROL SRF
DRY:593F -- WET:420F --- MOTUL RBF600
DRY:610F -- WET:421F --- NEO-SYNTHETIC SUPER DOT 610
ARRANGED BY WET BOILING POINT:
DRY:401F -- WET:284F --- DOT3
DRY:527F -- WET:302F --- AP RACING 551
DRY:446F -- WET:311F --- DOT4
DRY:502F -- WET:343F --- VALVOLINE SYNPOWER
DRY:509F -- WET:365F --- MOTUL 5.1
DRY:536F -- WET:392F --- ATE SUPERBLUE/TYP200
DRY:590F -- WET:410F --- AP RACING 600
DRY:593F -- WET:420F --- MOTUL RBF600
DRY:610F -- WET:421F --- NEO-SYNTHETIC SUPER DOT 610
DRY:590F -- WET:518F --- CASTROL SRF
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