My Latest Furore
Discussion
Reworked front wing & endplates, rear wing & kinked sides, upper rear body mouldings, new diffuser setup & centre "rainlight" - Oh, & a new livery - my tribute to Lewis, 7 times world champion whether you love him or hate him!
[url]
|https://thumbsnap.com/xwjn9nas[/url][url]
|https://thumbsnap.com/ZfPbtBNq[/url]
[url]|https://thumbsnap.com/xwjn9nas[/url][url]|https://thumbsnap.com/ZfPbtBNq[/url]Interesting you should say that, here's a shot of the car with the previous wheels & tyres! When I was doing the mods I was posting on a FB car builder's site & literally everyone was screaming "put wider wheels on it" Unfortunately without spending absolutely stupid money, (around £5k for a set of wheels & tyres) or going up to 18" wheels it's just not possible to go bigger than what I usually use, which is 17" wheels, 7,5" front & 9" rear, with 225 front & 245 or 255 rear (what's available seems to vary) with 45 front & 45 or 55 rear profile. I happened to get a set of 18" with tyres for sensible money so decided to try them, I think the look from front or rear is probably better, but don't like the side profile at all (they are only 35 profile). The ride is also noticeably harsher, not too surprising really as the original design relied on some sidewall compression to soften it
Real CFD modelling - yeah, right, I work out of a garage from my home, strangely I don't have access to several thousand pounds worth of software, nor the expertise to run it! & my windtunnel is also broken .......
However, CFD for this application is completely irrelevant, people seem to forget that wings do very little at low speeds unless they are enormous - like, as in aircraft! The original front wing blade (which is still there if you look carefully beneath the "vanes") was designed by AGM sportscars & came out of an aerofoil design manual, it has a lift (downforce in this instance) coefficient of around 1, which gives, at 70mph - this is a roadcar remember, downforce of a dazzling 12kgs or thereabouts. the secondary blade is actually a mould taken from a Jordan F1 car secondary rear wing, but hey, what did they know about aerodynamics, it's area is so small that it would barely add anything significant to the above figure, maybe another 15-20% & the vanes on the front wing will only magnify any affect slightly. Both rear wings are developments of the original front wing, but narrower, between them downforce would be a little higher than the front
Even at 120mph you're only talking about 35kgs & at 140 around 49kgs, I don't see me (or anyone else) regularly cornering at 140mph plus!
What is probably far more significant is that the car has a flat floor raked from front up to rear, along with the rear diffuser - I don't have calcs for this, but given the area & how well it's contained at its edges, I'd imagine it probably generates more downforce than all the other wings combined.
The wings are there purely for aesthetics - yes, the car is a significant performer & is seriously quick, but for road use, wings are pretty much irrelevant other than as drag generators or spoilers
At speed the car is 100% stable, I've had it up to around 140 maybe 145mph genuine & accurate, I really don't want or need to go any faster, but it was still giving a substantial push in the back at that point, it's geared for 170 & would make, I believe, around 160, a customer has had over 150 out of one
However, CFD for this application is completely irrelevant, people seem to forget that wings do very little at low speeds unless they are enormous - like, as in aircraft! The original front wing blade (which is still there if you look carefully beneath the "vanes") was designed by AGM sportscars & came out of an aerofoil design manual, it has a lift (downforce in this instance) coefficient of around 1, which gives, at 70mph - this is a roadcar remember, downforce of a dazzling 12kgs or thereabouts. the secondary blade is actually a mould taken from a Jordan F1 car secondary rear wing, but hey, what did they know about aerodynamics, it's area is so small that it would barely add anything significant to the above figure, maybe another 15-20% & the vanes on the front wing will only magnify any affect slightly. Both rear wings are developments of the original front wing, but narrower, between them downforce would be a little higher than the front
Even at 120mph you're only talking about 35kgs & at 140 around 49kgs, I don't see me (or anyone else) regularly cornering at 140mph plus!
What is probably far more significant is that the car has a flat floor raked from front up to rear, along with the rear diffuser - I don't have calcs for this, but given the area & how well it's contained at its edges, I'd imagine it probably generates more downforce than all the other wings combined.
The wings are there purely for aesthetics - yes, the car is a significant performer & is seriously quick, but for road use, wings are pretty much irrelevant other than as drag generators or spoilers
At speed the car is 100% stable, I've had it up to around 140 maybe 145mph genuine & accurate, I really don't want or need to go any faster, but it was still giving a substantial push in the back at that point, it's geared for 170 & would make, I believe, around 160, a customer has had over 150 out of one
Edited by RussBost on Thursday 23 September 11:39
BoRED S2upid said:
If that’s road legal I bet it gets some looks when out and about! Does it sound good? What engine does it have?
Put it this way, I can now lipread WTF at around 300 yards! 
This one is indeed a ZZR1400 as Daytonavrs has suggested, it's kinda loud (one of the reasons I've done very little trackday stuff!), 0 - 60 is around 3.5 seconds, so not too sluggish!
Gassing Station | Kit Cars | Top of Page | What's New | My Stuff