Originally Posted by RCZ Great! Looks like it came out well with the splitter too! You should hook those brake ducts to some velocity stacks and get a shroud around
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01-20-2011, 12:28 PM | #1216 (permalink) | ||
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Josh, how about spending some stillen money to buy shots showing off fascia? then we can use on blog post... might make sense to split the $69 for full day session |
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01-21-2011, 03:21 PM | #1221 (permalink) |
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The link seems valid, but I don't seem to be getting the picture I think I should. Very anxious to see the diffuser.
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01-23-2011, 01:40 AM | #1222 (permalink) |
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I'll post the track pics directly here this week... shroud will be another week or two
Had mixed success at track today... Firebird east... last time i was there was shortly after I bought the car and was still on street tires... ran a 1:06.5... today I was running about that time maybe half second less... a bit frustrating and a sign of the problems I am having with my brakes... had three offs today that were a result of setup issues and me trying to pass cars on 'dirty lines' - or braking zones with debris / silt... if you haven't tried tracking this car with ABS off, you should! ABS masks a lot of problems with the car, or at least my setup... we ended up running a softer front suspension with a few clicks out of the front suspension and -2 PSI on front vs rear in an attempt to get the front end to bite better under braking. The setup changes got me 50% of the way "there", but I'm not dialed in yet... Ironically I dropped the rear when I had ABS to keep the ABS from going into ice mode, but finding that the drop is too much now - given ABS is off - because it doesn't transfer enough weight to front... ABS off, keep rear high, ABS on, drop rear down low as possible The pads I'm running are mintex F3R front and mintex xtreme rear... I've decided that the F3Rs may be too much brake for me as a driver, and perhaps for this car... the coeff of friction is just too high and it comes on strong too fast to be practical for me on a short track with lots of stop and go (and ABS off)... not to mention the track I was running today has lots of brake zone transitions/ bumps... If i had ABS today, would have prob worked out okay, but without I was locking up when the front wheels hopped over transitions and missing turns Other things I may try before I ditch these pads... go from 18K front / 16K rear springs to 16/16... increase rear pads from mintex xtreme to ferodo ds3000's... increase rear ride height 1/4" to 1/2"... restore ABS I should also mention that one of my front rotors is warped due to excessive heat (before I added brake cooling). It is possible that some of my brake lock up is coming on due to the warped rotor. Will begin work on the shroud this WED and will prob take a week after that... now that we're down to 1 oil cooler core, temps are getting back to 255F in Arizona winter ambient temps... so the shroud is going to be very necessary Will add a couple points to the weight reduction thread Last edited by travisjb; 01-23-2011 at 01:45 AM. |
01-23-2011, 09:09 AM | #1223 (permalink) |
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Sorry to hear that Travis, sounds like that track is pretty tough without ABS. I was planning on switching to the F3R, now I have second thoughts. I was also wondering if a full floating rotor would be more resistant to warping, more room for even heat expansion right? At least one of my fronts is badly warped as well, I need to get some cooling.
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01-23-2011, 10:19 AM | #1224 (permalink) | |
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In addition to replacing warped front rotors, there are three things getting in the way of me effectively braking this car with ABS off... 1) IMO F3R's are not a "pedal feel" kind of pad, they'd prob be good for a driver with ABS that is constantly going into ABS anyways... and they'd prob be good for a driver that is used to a pad like this and running tracks with lots of long, straight, smooth braking zones... I look forward to trying them out in different conditions and providing more input later... I did run them at Chuckwalla last week and I turned the quickest time I have ever run there - although that track is all about high speed transitions and smooth surface / relatively straight braking zones 2) ride height, tire psi, and suspension setup... with ABS off I'm finally beginning to realize how important this element is in braking... dropping 2psi front (relative to rear) and playing around with damper settings made a HUGE difference... I think for guys with a lot of seat time and test/tune time this will come as no surprise... for me, I was amazed how a few clicks on the dampers etc changed braking performance - particular the braking in response to a brake zone bump and the initial bite when first applying brakes... 3) rear compound that is a match for these F3Rs on the front... during hard braking, my front tires were losing traction first, so once I address #2 above, I'm going to also switch to a stiffer rear compound (the ferodos) to see if I can balance out the F3Rs a bit Hope this helps... I'm sure there are applications where the F3Rs make a lot of sense - and if there's anyone else reading this that has experience with these pads, would welcome more input |
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01-23-2011, 02:07 PM | #1225 (permalink) |
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I'll let AP Chris step in with his insights, but Travis I think you're coming into your own as a driver, and getting in the thick of things, which is fantastic to see.
Another point is you're to the level where not every pad, suspension, tire pressure setup is the same for each track. You will have better results on certain tracks with certain setups, which will include brake pad selection. Good part is there is a myriad of options, but at your level in ability and build, doubt there is going to be a 'magic' setup that will perform as what you want on each track, as you're noting they can vary significantly on your expectations of the car. Knowing what each change does to the feel of the car, and how you drive will have a lasting impact on how to set the car up for each type of track. Great info, and thanks for the continual updates.. |
01-25-2011, 10:26 PM | #1226 (permalink) | |
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Would be appreciative if Chris dropped by here to share some sage advice |
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01-27-2011, 01:30 PM | #1230 (permalink) |
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Oh man! So Sick!
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