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CocoUK

Original Poster:

576 posts

68 months

[news] 
Monday 19th March 2012 quote quote all
Matt Farah of thesmokingtire.com has had a little play in an Exige many of us will recognise...

Drive Central preview - LINK.


Tuned! videos usually go live on Mondays - so, err, stay tuned!

Edited by CocoUK on Tuesday 20th March 21:28

harryowl

1,055 posts

67 months

WCZ

2,310 posts

80 months

[news] 
Tuesday 20th March 2012 quote quote all
'worlds fastest lotus' - aside from that Hennesey overpriced pos

MagicalTrevor

5,388 posts

115 months

[news] 
Tuesday 20th March 2012 quote quote all
Doesn't that belong to a PHer? Is it Roney or something like that

RoninExige is the fella

Playo

250 posts

81 months

[news] 
Tuesday 20th March 2012 quote quote all
...Or it's the guy's who just posted the link above wink

Hats off to you for going so far with it. Is it on the limit now or could you still improve on what you have?
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MagicalTrevor

5,388 posts

115 months

[news] 
Tuesday 20th March 2012 quote quote all
Playo said:
...Or it's the guy's who just posted the link above wink
Tut tut, two logins? wink


chuntington101

4,748 posts

122 months

[news] 
Tuesday 20th March 2012 quote quote all
Go for it Ronin! whats the worst that could happen? lol

CocoUK

Original Poster:

576 posts

68 months

[news] 
Tuesday 20th March 2012 quote quote all
Great video, really enjoyed that & blimey, quite the car that you & Mike have built, RAPID!

"Ludicrous speed - GO!" smile

Townsend Bell and the Rocket Pig
Townsends reaction to the first few times he gives it some beans is awesome, as is when he returns, most impressive!



the ronin

730 posts

97 months

[news] 
Tuesday 20th March 2012 quote quote all
I just found this :lol: http://jalopnik.com/5894921/meet-the-most-amazing-...

[quote] 2 fast 2 frögberg Tue 20 Mar 2012 3:59 PM
BOOK OF LOTUS, CHAPTER 6

Lo, and the Lord gave unto Profera a Lotus, and it was good.

"But Lord," said Profera, "this Exige isn't fast enough."

And the Lord gave unto Profera a turbo, which displaced the supercharger. And it was good.

"But Lord," said Profera, "this Exige still isn't fast enough."

And the Lord gave unto Profera a bigger turbo. And it was good.

"But Lord," said Profera, "this Exige still isn't fast enough."

"Jesus, Frank!", said the Lord, "what how fast do you want that thing?!"

"I don't want to wait for it to pull and I don't ever want it to stop pulling," said Profera.

And the Lord said, "Sorry, Frank, I'm out of ideas."

And Profera was woebegone.

And the Devil appeared and said unto Profera, "Psst, hey Frankie! Back in the 80's, we did some crazy st. People were going so crazy fking fast that they were disintegrating. It was awesome!"

Profera said, "What do I need to do?"

The Devil showed Profera that the supercharger AND the turbocharger could live and work in concert and create transmission melting power that sent his Exige to mind-numbing speeds.

And Profera drove his creation happily with instant power that never ceased, and it was good.
[/quote]

Arun_D

1,931 posts

81 months

[news] 
Wednesday 21st March 2012 quote quote all
Really enjoyed watching that.

Have noticed you have a knack for rubbing up people the wrong way on here, Frank, but your car is simply stunning!! Great work.

the ronin

730 posts

97 months

[news] 
Wednesday 21st March 2012 quote quote all
Haters gotta hate it seems.

Seriously I get tired of having to defend myself from the haters all the time. They then go crying to their mommy when my defense is more brutal than their offense....
Simple rule is don't slap me and I won't hit you in the throat....

If you have nothing nice to say, say nothing...

Monkey boy 1

1,950 posts

117 months

[news] 
Wednesday 21st March 2012 quote quote all
Quite a stunningly mad car. On the down side, it's the wrong side on the pond. It is difficult to judge from the various videos that are kicking around on the Net actually how good (or bad)this modified Lotus is.
It would be good to see this car on a recognised official track, timed, with a comparison against another production vehicle of similar power figures with a professional racing driver at the controls rather than just hooning around canyon roads in the USA.

the ronin

730 posts

97 months

[news] 
Wednesday 21st March 2012 quote quote all
Monkey boy 1 said:
Quite a stunningly mad car. On the down side, it's the wrong side on the pond. It is difficult to judge from the various videos that are kicking around on the Net actually how good (or bad)this modified Lotus is.
It would be good to see this car on a recognised official track, timed, with a comparison against another production vehicle of similar power figures with a professional racing driver at the controls rather than just hooning around canyon roads in the USA.
But you missed the point my car is built for hooning in the twisties not some BS airstrip or a track lap time since I know lap times are first about the driver and then the car... I'm not producing anything for sale this is just my car folks glad to share the build with ya nothing more. If you would like to know what bits broke and what bits didn't break during the build I am more than happy to share the info with ya...
As for comparison with other cars of similar power, they can't hoon in the twisties without killing themselves... I have never come across any other car that could hang with me in the canyons and I'm not pushin it..
I don't live on a race track or airstrip so times are meaningless.....

But it can pull a tuned liter R1 with great riders without breaking a sweat and it's just a matter of balls as to how fast you really want to go in this rocket pig....

When an Indy Car / Lotus racer comments on the cars performance I listen and there are no need for numbers and lap times when you hear this..

http://www.youtube.com/watch?v=SUmX_OPfr7g

again this is me behind the wheel with my buddies on a Sunday drive..

http://www.youtube.com/watch?v=oQxdhLNs79Q

There are no so called supercars on the road and this is LA. they just pose with their gold chain owners ..whistle

Edited by the ronin on Wednesday 28th March 14:37

kambites

40,997 posts

107 months

[news] 
Wednesday 28th March 2012 quote quote all
What's the total pressure generated by the twin-charging setup, and how much comes from each charger?

How does the setup avoid turbo lag; does the supercharger somehow redirect to the exhaust to keep the turbo spinning when the throttle is closed?

Edited by kambites on Wednesday 28th March 08:54

Scuffers

14,273 posts

160 months

[news] 
Wednesday 28th March 2012 quote quote all
kambites said:
What's the total pressure generated by the twin-charging setup, and how much comes from each charger?

How does the setup avoid turbo lag; does the supercharger somehow redirect to the exhaust to keep the turbo spinning when the throttle is closed?
you over-thinking this...

supercharger is a supercharger, it used the crank to shove air in,

Turbo uses exhaust gas heat/mass to drive it's compressor.

Lag (or more accurately boost threshold) is caused by lack of exhaust gas to drive the turbo

in Franks setup, the engine will be producing reasonably high exhaust gas mass from being supercharged, thus the turbo has more to work with, thus spools up earlier, this then pushes more air into the supercharger, thus more into the engine, thus more exhaust gas, etc etc.



SeanyD

2,994 posts

86 months

[news] 
Wednesday 28th March 2012 quote quote all
the ronin said:
Simple rule is don't slap me and I won't hit you in the throat....

If you have nothing nice to say, say nothing...
Car looks epic, so well done on that front. Sadly, attitude seems to be missing the 'Lotus' friendly group ethic.

kambites

40,997 posts

107 months

[news] 
Wednesday 28th March 2012 quote quote all
Scuffers said:
Lag (or more accurately boost threshold) is caused by lack of exhaust gas to drive the turbo
No, I'm talking about lag, not boost threshold (not the same thing); high-rev off-throttle to on-throttle transitions.

I've never understood why people care about the boost threshold, it's not as if you'd ever be at low revs when trying to accelerate hard anyway; turbo lag, however, is horrible.

Edited by kambites on Wednesday 28th March 09:51

Scuffers

14,273 posts

160 months

[news] 
Wednesday 28th March 2012 quote quote all
kambites said:
Scuffers said:
Lag (or more accurately boost threshold) is caused by lack of exhaust gas to drive the turbo
No, I'm talking about lag, not boost threshold (not the same thing); high-rev off-throttle to on-throttle transitions.

I've never understood why people care about the boost threshold, it's not as if you'd ever be at low revs when trying to accelerate hard anyway; turbo lag, however, is horrible.
your completely missing the point.

your statement above just shows that you don't understand not just the difference but the causes.

kambites

40,997 posts

107 months

[news] 
Wednesday 28th March 2012 quote quote all
Scuffers said:
your completely missing the point.

your statement above just shows that you don't understand not just the difference but the causes.
OK, let me rephrase it then. The problem I have with turbocharged engines is the time taken for the feedback loop of exhaust gas and inlet manifold pressure to cause the turbocharger to spool up to full speed when transitioning from closed to open throttle at high revs. The only turbocharged cars I've driven that don't suffer from this are (non-road legal) ones with anti-lag systems that inject un-burnt fuel into the exhaust when the throttle closes to keep the turbo spinning. How does a twin-charger setup get around this problem?

And if that's not "turbo-lag" then what is it called? confused


I do not care, in any way shape or form, about the point in the rev range at which the turbocharger becomes active at constant throttle, which I believe is called the boost threshold, because I never expect a car to accelerate hard from low revs anyway.

Edited by kambites on Wednesday 28th March 10:13

Scuffers

14,273 posts

160 months

[news] 
Wednesday 28th March 2012 quote quote all

OK, let's break this down, in the context of a BIG turbo, what causes lag?


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