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6 Dec 2017, 10:37 (Ref:3785395) | #76 | ||
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I have to say, after seeing the monstrosity of twin-turbo exhaust systems on both the AER-BR-Dallara and the Nissan-Kolles cars......the single central turbo Ginetta will look awfully more sleek in comparison........much like the audi-Diesel was, the side pod exit was much clearer of clutter.
The Kolles in particular almost blocks off the entire side-pod outlet with turbos,pipes and wastegates.......I believe the side-pod exit helps drive the aero of the rear diffuser.......hardly a small consideration in the aero department. |
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6 Dec 2017, 14:21 (Ref:3785429) | #77 | ||
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We have to remember that the Peugeot 908 V12 had side exit exhaust and so did the Porsche RS Spyder, Acura ARX-02 and the Acrua/HPD ARX-01c. I know that's years ago, but it didn't seem to harm those vehicles performance.
Not to mention that the Pug had particle filters and the Porsche and Acura/HPD cars mentioned had mufflers in the sidepods. I'd think that a bigger issue would be heat from the exhaust messing with tire pressures |
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6 Dec 2017, 18:18 (Ref:3785487) | #78 | |
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6 Dec 2017, 18:38 (Ref:3785494) | #79 | |||
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7 Dec 2017, 07:06 (Ref:3785596) | #80 | |
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Motorsport.com has some images from testing!
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7 Dec 2017, 09:01 (Ref:3785608) | #81 | |||
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Quote:
over-fuelling is generally frowned upon in endurance racing as you are otherwise wasting precious fuel......they possibly also have a fresh-air valve system to help air bypass the engine and go straight into the exhaust to help keep boost pressure up. It was an ALS system pioneered in the early days of Turbo F1 cars in the 1980's, and then exploited further in WRC in the 1990's.......but the bangs were on another level. |
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7 Dec 2017, 09:04 (Ref:3785609) | #82 | |||
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7 Dec 2017, 15:15 (Ref:3785666) | #83 | ||
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quite possibly........its common in motorsport as an ALS system for any turbo motor......its commonly mistaken for an EGR valve, but its completely the opposite.
I think the Ford 1.0 3-cylinder tubo eco-boost motor actually uses one in mass production. |
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18 Dec 2017, 12:52 (Ref:3787851) | #84 | ||
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Some video from testing in Portugal - https://twitter.com/twitter/statuses/942737706282573824
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__________________
ACO-Ratel-Lotti group of "entertainpreneurs" soon will make you think that Reverse-Gear-Racing is the most professional series in the world. "Faccio il pane con la farina che ho". |
18 Dec 2017, 14:30 (Ref:3787863) | #85 | |||
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18 Dec 2017, 17:09 (Ref:3787900) | #86 | ||
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22 Dec 2017, 18:02 (Ref:3788725) | #87 | ||
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Lot of good pictures of BR1 testing at Portimao
https://www.motorsport.com/wec/photo...lery/?r=193873 |
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1 Feb 2018, 16:11 (Ref:3797480) | #88 | |||
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More testing for the BR1
Translated from french Quote:
source |
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1 Feb 2018, 22:02 (Ref:3797582) | #89 | |
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This car/teams have definitely got the jump on the others in terms of testing. Only the ByKolles car has been running nearly as much so far. I'm sure the Rebellion will be based closely to the lmp2 Oreca so they have that to go on, but they definitely will need to upgrade the aero and understand the tires. I can't wait to see how they all perform relative to eachother and Toyota.
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19 Feb 2018, 16:22 (Ref:3802434) | #90 | |
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Here is SMP Racing Testing the BR1 with a low aero downforce kit. With many of the front end winglet elements gone. Also it looks from this angle the car is sporting a much shorter front overhang. I wonder if SMP Racing are going to run one of the cars with the higher downforce package at Spa and the other with the lower downforce package.
https://ibb.co/e32ei7 |
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19 Feb 2018, 22:48 (Ref:3802495) | #91 | ||
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19 Feb 2018, 22:50 (Ref:3802496) | #92 | |
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20 Feb 2018, 01:31 (Ref:3802512) | #93 | |
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The overhang is the same for both, just longer fenders and upper bodywork.
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20 Feb 2018, 03:03 (Ref:3802522) | #94 | |
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20 Feb 2018, 07:42 (Ref:3802540) | #95 | ||
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20 Feb 2018, 20:33 (Ref:3802762) | #96 | ||
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21 Feb 2018, 14:25 (Ref:3802917) | #97 | |
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21 Feb 2018, 17:33 (Ref:3802972) | #98 | |
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21 Feb 2018, 22:58 (Ref:3803044) | #99 | ||
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22 Feb 2018, 07:32 (Ref:3803075) | #100 | |
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Sure it's not just that they're further ahead in their programme? In the end, I think all three of the two car teams will be pretty even, they're all serious efforts, and I love the fact that they are all using different chassis/engine combinations. I couldn't pick a favourite this early. By the time we get to Silverstone, maybe.
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