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Old 18 Nov 2017, 08:33 (Ref:3781181)   #136
Bentley03
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Originally Posted by Mal View Post
Is there any word on who the supposed OEM branded Ginetta is?
There was the Dacia/Wizzair rumour doing the rounds a while back (sounded pie in the sky to me ), originally linked to the sale, then no sale, of the 2 Perrins, I believe. Perrin indicated the programme would still emerge, but with a different LMP1 manufacturer.

But that's pure speculation on my part. Who nows, until...
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Old 19 Nov 2017, 13:16 (Ref:3781484)   #137
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I wonder why most of LMP1 struggle to complete a full season.
?
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Old 29 Nov 2017, 09:31 (Ref:3783977)   #138
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Random post: Ginetta has turned a profit.

"In its accounts, LNT also report that Ginetta made good progress in growing its markets and increased turnover by 49% to £9.2m. International exports accounted for 28% of all Ginetta’s new car sales in 2017 due to the expanding model range in to sports prototypes and the competitive success of their GT4 model globally.

As a result, Ginetta made its first gross profit in the year. The company said this demonstrated that the long-term strategy of sustained investment in product range, and manufacturing capability, is on course to deliver a programme of improved profitability in future years."

http://www.thebusinessdesk.com/yorks...Nov_2017_Daily
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Old 15 Dec 2017, 17:06 (Ref:3787285)   #139
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Mecachrome details...

http://www.dailysportscar.com/2017/1...e-details.html
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Old 15 Dec 2017, 17:15 (Ref:3787286)   #140
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knighty should be qualifying in the top 5 on the gridknighty should be qualifying in the top 5 on the grid
Mechachrome 3.4 V6 = LMP1 engine porn.....i am convinced whoever uses this motor will be flying.
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Old 15 Dec 2017, 17:32 (Ref:3787288)   #141
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canaglia should be qualifying in the top 10 on the grid
Something goes beyond my engineering understanding, but what's the deal to make an engine rev up to 9000rpm when max power is achieved at 7000rpm?

wasn't better to make a milder torque curve but max power reached higher? basically like a NA engine (or ford GT GTE engine).
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Old 15 Dec 2017, 18:11 (Ref:3787294)   #142
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I would like a proper explanation of that too. But I guess if you can safely rev past peak power then you can change gear and drop back to somewhere near the torque peak and so maintain acceleration. Maybe you can accelerate better in a lower gear just past peak power than you can in the next gear up at lower revs.
And you can safely 'over rev' past the power peak if you are slipstreaming.

I'm making this up, obviously.
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Old 15 Dec 2017, 20:18 (Ref:3787317)   #143
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I think they have been incredibly conservative with the torque and power figures released. For this capacity i would expect 8-900NM torque, and to be comfortably wellover 700hp.

Regarding revving to 9000rpm.....i think it boils down to how much fuel in the tank there is to burn, versus tank capacity, pit strategy and so on......the engine can be run quite hard, but if you can achieve competitive pace via short shifting and saving fuel, then thats the direction to go.

F1 engines only rev so high as the FIA mandate it to make noise and keep the fans happy, but the F1 engine folks have openly admitted the same track performance can be achieved with drastically less rpm, but the engines will otherwise sound dull as hell.
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Old Yesterday, 11:01 (Ref:3787435)   #144
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I think they have been incredibly conservative with the torque and power figures released. For this capacity i would expect 8-900NM torque, and to be comfortably wellover 700hp.

Regarding revving to 9000rpm.....i think it boils down to how much fuel in the tank there is to burn, versus tank capacity, pit strategy and so on......the engine can be run quite hard, but if you can achieve competitive pace via short shifting and saving fuel, then thats the direction to go.

F1 engines only rev so high as the FIA mandate it to make noise and keep the fans happy, but the F1 engine folks have openly admitted the same track performance can be achieved with drastically less rpm, but the engines will otherwise sound dull as hell.
you're forgetting that is a single turbo and judging by engine displacement, I didn't expect a lot of pressure boost from the single turbo.
Indeed endurance single turbo engines with an insane pressure boost are all small sized, not over 2L (porsche V4, SGT L4, mazda AER L4).

About rpm, guess that's the simplest solution. ECU lets the engine rev up to 9000rpm, but being max power released at 7000rpm already, short shift all the way.
Actually is the same about 488 GTE, according to bop sheet, car loses turbo boost at 7100rpm (or 7500rpm, only in IMSA maybe) but during onboard, drivers always upshift just passed 6000rpm
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Old Yesterday, 17:13 (Ref:3787500)   #145
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It is not so different from a Porsche 962 engine from the IMSA GTP era. Even it had almost the same power with 2.8 L.
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Old Yesterday, 19:45 (Ref:3787525)   #146
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knighty should be qualifying in the top 5 on the gridknighty should be qualifying in the top 5 on the grid
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Originally Posted by canaglia View Post
you're forgetting that is a single turbo and judging by engine displacement, I didn't expect a lot of pressure boost from the single turbo.
Indeed endurance single turbo engines with an insane pressure boost are all small sized, not over 2L (porsche V4, SGT L4, mazda AER L4).

About rpm, guess that's the simplest solution. ECU lets the engine rev up to 9000rpm, but being max power released at 7000rpm already, short shift all the way.
Actually is the same about 488 GTE, according to bop sheet, car loses turbo boost at 7100rpm (or 7500rpm, only in IMSA maybe) but during onboard, drivers always upshift just passed 6000rpm
No i am not, the single turbo is why the engine is so compact, a wider compressor map can easily be achieved using very established compressor and volute design tricks around the compressor nozzle and diffuser area, combined with ALS stratagies such as fresh-air valves which were invented in the 1908's it will be fine im sure.....really its no big deal.
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