RS bumper upper radiator slots
01-01-2012, 10:38 AM
#46
Three Wheelin'
OZ,
not sure if its of interest, especially now you are all fitted up, but the middle rad on my cups dont slope forward anywhere near that amount. its probably about a couple of degrees off vertical at the most and thats it.
you perhaps should have reversed the top frame so that the part that the bolts pass through is to the front. thats how it is and has been on all my cups..
the cup also uses a larger middle radiator than the GT3 uses, its about double the size.
not sure if its of interest, especially now you are all fitted up, but the middle rad on my cups dont slope forward anywhere near that amount. its probably about a couple of degrees off vertical at the most and thats it.
you perhaps should have reversed the top frame so that the part that the bolts pass through is to the front. thats how it is and has been on all my cups..
the cup also uses a larger middle radiator than the GT3 uses, its about double the size.
, looking at the parts diagram the upper frame is reversed in comparison to the standard mounting - that probably accounts for about 30mm of forward tilt. That probably also explains why I needed to cut recesses in the side rad air scoops. Now it's done though, I don't plan on changing it back!, I suspect the extra tilt will have the rad cooling fins redirecting the air flow upwards. Good spot though, I will add some comments to the web page as well.
01-02-2012, 11:59 AM
#47
Race Car
HiWind,
997GT3 does not have any lower vents, correct. So, the correctly modified 996GT3 (in USA mode) design will be closer to the 997GT3 approach.
From personal experience on my 996GT3 (with fully functioning vents):
1. Car ran noticeably cooler. Not measured but needle was consistently cooler than before mod.
2. At speed front end seemed to be more stable.
On current 7RS, (With after market GEMBALLA carbon fiber hood). Heat has no effect as it does not get that hot. However, the hood latch (metal loop) can get quite warm to touch.
997GT3 does not have any lower vents, correct. So, the correctly modified 996GT3 (in USA mode) design will be closer to the 997GT3 approach.
From personal experience on my 996GT3 (with fully functioning vents):
1. Car ran noticeably cooler. Not measured but needle was consistently cooler than before mod.
2. At speed front end seemed to be more stable.
On current 7RS, (With after market GEMBALLA carbon fiber hood). Heat has no effect as it does not get that hot. However, the hood latch (metal loop) can get quite warm to touch.
OZ951 - any idea about how your uber-tilt is working ie is more better? The website update looks good - keen to hear more as ever - ps that was your 1500th post! Nice 'one'.
Last edited by HiWind; 01-02-2012 at 04:13 PM.
01-03-2012, 08:11 PM
#48
HiWind,
Shortly after mod was complete traded 6GT3 for 7.1RS. Therefore can't provide any hard numbers for lower temp, higher speed or lower lap times. As stated prior, did attain consistent lower temps and experienced a less nervous front at speed. Unfortunetly, my lap times where comical so can't comment on any improvement.
Shortly after mod was complete traded 6GT3 for 7.1RS. Therefore can't provide any hard numbers for lower temp, higher speed or lower lap times. As stated prior, did attain consistent lower temps and experienced a less nervous front at speed. Unfortunetly, my lap times where comical so can't comment on any improvement.
01-04-2012, 01:14 AM
#49
Race Car
01-04-2012, 09:13 PM
#50
Three Wheelin'
It's a bit early to tell, I've only managed a couple of local test drives due to my rebuilding my front struts (swapping from aluminium bodies to steel bodies) after doing the bumper mod and stripping out airbags & speakers and installing a 997 SSK yesterday.
Proper test drive can be done in about 2 weeks when I get the geometry done by a UK specialist and my first track day for 2012 is in late Jan. So hopefully there will be some positive feedback then.
I haven't noticed any issues though so that good. Temp was running under 80 whereas its usually a tad over 80 but that was just the one drive in traffic.
01-05-2012, 05:13 AM
#51
Rennlist Member
Wayne, where's your Jan trackday?
01-05-2012, 07:19 AM
#52
Three Wheelin'
01-13-2012, 12:33 PM
#53
Rennlist Member
If you are going to all the trouble of cutting the PU & canting the middle rad forward, you should really do the job properly & remove item 13 above to fit the full 996 GT2 radiator mounting kit & rear "chimney" to direct the hot air through the PU vents.
Doing it this way means that you can really feel the extra front downforce over about 120mph.
Doing it this way means that you can really feel the extra front downforce over about 120mph.
03-02-2012, 10:16 AM
#56
Three Wheelin'
03-02-2012, 03:36 PM
#57
Instructor
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