Thread: Modificirani vrući otvor mega test

Da li ugađanje vrućeg otvora pojačava zabavu ili ga spali u pepeo? Mi se u. Focus fokusa ST, Astra VXR, MEGANE Renaultsport i Mazda 3 MPS pronaći izbaciti svoj um natrag desetak godina. Neosporno hot Hatch kralj-Peugeot 306 GTI-6-je jednostavno preskunjeno u velikom parkiralištu na nebu. Sa "šira 167bhp" od prirodnog aspirena 2. 0-litreni Twin-Cam motor i šest naprijed zupčanici, uvjerljivo zadržao vrući otvor visoko tlo.
Dvije godine kasnije vidi 212bhp Ford Focus RS i 210bhp Seat Leon Cupra R, i nova pasmina hiper vrućeg otvora se rađa, mutira kao freak organizmi tijekom vremena u divovske ubojice danas; 250bhp je postao minimalni uvjet u ovoj klasi.
Okupili smo neke primjere trenutne pasmine kako bi ih analizirali na sat i zajedno obično neugodne B-ceste.
The Mk3 Ford Focus ST je iz Buckinghamskih superčipova, tvrtke koja je postojala u poslu ugađanja upravljanja motorom od 1980-ih. Ova faza 2 nadogradnja (košta 1446) ima puni Miltek ispušni iz Turbo leđa, uključujući i High-flow Sportska mačka i zamjenski filter zraka. Mapiranje implementira tvrtke bluefin ručni računalo, koji omogućuje kupcima da se prebacuju između karata i primanje ažuriranja putem interneta. Superchips tvrdi novi vrhunac snage 292bhp (gore od 247bhp) i 332lb ft na samo 2115rpm.
The Mazda 3 MPS pozdravlja od BBR GTI u Brackley, ali zato što BBRs prosvjed nije dostupan, bilo je pozajmljena mušterija automobila. Ova faza 2 pretvorba, ima REMAP, visoko-protok ispušni downpipe i sportska mačka i više protoka goriva pumpe i ulaznih crijeva. Ovo je jedini auto koji ima preinake Turbo. Zajedno sa 2. 3-litarski MZR motor je velika, tuča karakteristike, tvrdnje su 350bhp i divlje-zvučna 368lb stopa.
Međutim, ovaj automobil je rezerviran u za veći turbopunjač (i punu suspenziju nadogradnja) nakon što ga je vozio i, u BBRs mišljenju, prednji montiran (za razliku od standardnog top-montiran) Intercooler opremljen vlasnikom boli tvrdili izlaza i gas odgovor Kada je u kombinaciji s turbo standardne veličine. Pa vidi. Kao što je, motor mods košta 2890.
K-TEC racings RENAULT MEGANE RS 250 slijedi standardnu rutu promijenite zajedno s zamjenskim filtrom zraka i novim dimnim ispuhom, ali također ima novi Intercooler. Tvrdnje su 295-300bhp i 320lb ft, s toliko koliko 80lb ft više od standardnog automobila na 2600rpm. Cijena za to, uključujući ugradnju i godišnje jamstvo, je 1691. Nažalost, K-Tecs Nitron podesiv zavojnica-uz ovjes opremljen je bio nedostupan, tako da su koristili privatni automobil s gore navedenim izmjenama plus 19-inčni legure kotači i Eibach spuštanja izvora.
Naposljetku, Terney Motorsport Vauxhall Astra VXR-R, ograničeno izdanje 100, iako su tuning dijelovi dostupni odvojeno. Na strani motora, theres tri inča ispušni s sportskim mačka, zamjenski filter panel zraka i REMAP, dajući 320bhp i 310lb ft.
Thorney je zadržao standardne izmjenjive prigušnike, ali je opremio vlastite opruge i Pričvršć obustavu geometriju, promjenom tvornice 20-inčni kotači za neke lakši verzije. Najvažnije od svega, VXR-R je dostupan od bilo kojeg Vauxhall distributera, s cjeloživotnom jamstvom. Platit ćeš 3749 za privilegiju.
U ravnoj liniji
Theres ne uskraćuje 0-60mph lansiranje pruža univerzalno razumljiv barometar ubrzanje. No, s podijeljenog između vozila u privatnom vlasništvu i poduzeća Demos, masna, blizu zamrzavanja površina staza, čini se ni fer niti posebno otkrivajući pokušati ugasiti ovaj kvartet s linije na sat.
Tako je odlučio otići od odmora, a zatim ga dati puno u drugoj brzini prije 20 mph. Odande će biti ravna kroz zupčanike dok kraj piste ne bude velik, nadajmo se oko 150mph. Pa dodajte u zupčanik trčanje preko postavljnih koraka (30-50mph, 40-60mph, 50-70mph) u trećem, četvrtom i petom, kako bi dobili ideju o fleksibilnosti u stvarnom svijetu.
Prvo je Focus. Više od toga je da se ne može napuniti u kabini, ali nije tako rasilan da bude iritantan. Unatoč ležerno lansiranje, uvođenje sve zakretni moment u drugoj brzini ima prednje gume na vrhuncu kotača. 30-70mph je poslano u 4. 9sec, par desetina gore na Autocarovim cestovnim testnim brojkama, i to je gotovo pola sekunde brže od 80-100mph prije nego što se pravi 150mph.
Međutim, brojke u brzini dokazuju Najzapanjujući. Svi iznosi u trećoj brzini su skoro pola sekunde brži od onih na cestovnom testu, a neusporediva linearnost znamenki preko četvrtog i petog pokazuje da ST ima najširu i najupotrebljivu Powerband.
Nakon što je osjećaj snage Mazdas ubrzanje od vozača sjedala, to je šok otkriti da je potrebno do 100mph za to za remont fokusa. To je djelomično rezultat fords drov low-REVS isporuke, ali djelomično kao, trenutno konfiguriran, 3 MPS ima previše Turbo lag.
S manje promjena koje su potrebne na trodimenzionalnim brzinama, Mazda je off kao HRT i udobno prelazi 150mph-gotovo pet sekundi prije reži Forda. Porast trećeg zupčanika brz je kao i bilo što drugo, ali viši zupčanici pokazuju nekvalitetnu stranu isporuke, posebno zijevanje 30-50mph vrijeme u petom.
K-TEC Renault je divlja stvar. Jedinstven glas F4RT motora je doveden ovamo, sviđalo se to tebi ili ne. Najbrži do 100mph, ali neuvjerljivo ne dosegne 150mph. Ona također dovodi do najniže vrijeme povećanja u brzini: 2.3sec za 30-50mph u trećem, što prevodi kao strašan i momentalni prekoračenje potencijala. Brojke u četvrtom i petom pokazuju da ima noge na Fordu na punom pojačaju, ali ne i isto jezivo širok prozor odgovora.
Na Astra VXR-R, koji, jer je još uvijek u razvoju, nije još daje vrstu brojke obećao. Njegova blizina Ford i Renault do 60mph, pa čak i drži olovo nad Mazda, ali onda pada stalno dalje iza, samo dosegnuvši 140mph prije našeg hitnog kočenja intervenira. Ima i najsporiji put u brzini, bez obzira na porast. Međutim, to apsolutno ruši standard VXR Weve donio zajedno za usporedbu.
Na cesti
Na ulicama Leicestershires Serpentine, u mraku i sa temperaturama oko smrzavanja, Ford je manijak. Njegove gume koje nisu robne marke koje su u njegovoj mogućnosti za brz tempo križnog dijela zemlje. Želi se Valjat svuda, a iskustvo se vrti oko toga kako si ti s desnom nogom. Novo mapiranje omogućuje točnu modulaciju gasa, ali ne poričete da se zakretni moment brzo vraća. Bez obzira da li ova nemoć dolazi iz guma, ili zato što mu nedostaju revoknuckle potpornji i ograničena razlika je teško reći. Ipak, ST je sramotno učinkovit uređaj za preuzimanje, kao što je naše vrijeme u brzini dokazano.
Mazda je slično tako neuračunljiv, ako iz različitih razloga. Limitirana razlika čini svoje najbolje da sadrži zakretni moment, ali u ovim uvjetima njuškanje od ruba do središnje linije i zahtijeva čvrstu ruku. 3 MPS nikada nije bio naš omiljeni vrući otvor kada je novi, ali ovaj 50.000 Miler osjeća spužvasta i nejasna, dominiraju snagom. Nakon što je pokušao BBRs Full-House prosvjednik s Koni prigušivači, znam da je to veliki napredak na Mazdas nudi, ali, kao što je, to je više o ubrzanja uzbuđenja.
Renault je još agresivniji nego obično s ovim neposrednim gunđalo na slavine. To je auto ručke to neće iznenaditi bilo tko upoznat s osnovnim automobilima talenata. Njegova čvrsta i beskompromisna, dobra ponuda uklonjena iz iskustva koju nudi Golf GTI. No, to je također najviše zabavno voziti okolo Bruntingthorpes jednostavan krug i vrlo učinkovit na cesti.
Najveće iznenađenje je VXR-R. Kapljica od 40mm pada zvuči kao zadnja stvar koju Astru treba, ali revidirane proljetne cijene dobro funkcioniraju s prigušnicima, pa čak i najstroz postavka sada je korisna na cesti. Novo mapiranje je uklonilo standardne automobile. Ostavite ga u Normal i ASTRA teče, prigušenje najgore od iznenadnih spustio na cesti. To nije tako ojačavanje kao Renault, ali ovdje, u ovim uvjetima i doći kući, to je vrlo privlačan.
Što smo naučili? Korišteno Mazda 3 MPS je velika osnova za izradu 160mph-plus vrući otvor; ne uklapaju gume u auto koji može probiti 150mph s lakoćom; MEGANE RS je još bolje s malo više mlaz; Astra VXR ima potencijal...
A ipak, za svu njihovu brzinu, je li ova vrsta vrućeg otvora ide u razvojnu slijedu-de-sac? Ponizno shod, godina-2000 standard Subaru Impreza Turbo bi ih pobjeći u tim uvjetima, i iako oni brže, oni ne nužno nude zabavu svojih predaka s pola snage.
A sada, s dolazak od 30k BMW M135i – što je znatno brže nego čak i ovi prilagođeni automobili – visoka snaga/High-Cost vrući otvor je pod značajnim tlakom odozgo. Ipak, kupiti koristiti i ugađati inteligentno i teško uskladiti paket performansi i praktičnost na ponudi ovdje.

Does tuning a hot hatch intensify the fun or burn it into a cinder? We take a tuned Focus ST, Astra VXR, Megane Renaultsport and a Mazda 3 MPS to find outCast your mind back a dozen years. The undisputed hot hatch king – the Peugeot 306 GTI-6 – has just deftly oversteered into the great car park in the sky. With a fizzing 167bhp from its naturally aspirated 2. 0-litre twin-cam engine and six forward gears, it convincingly held the hot hatch high ground.
Two years later sees the 212bhp Ford Focus RS and the 210bhp Seat Leon Cupra R, and an all-new breed of hyper hot hatch is born, mutating like a freak organism over time into the giant-killers of today; 250bhp has become the minimum requirement in this class.
Weve gathered some tuned examples of the current breed to analyse them against the clock and along typically awkward B-roads.
The Mk3 Ford Focus ST is from Buckingham-based Superchips, a company that has existed in the engine management tuning business since the 1980s. This Stage 2 upgrade (costing 1446) features a full Miltek exhaust from the turbo back, including a high-flow sports cat and a replacement air filter. The mapping is implemented by the firms Bluefin hand-held computer, which allows customers to switch between maps themselves and receive updates over the internet. Superchips claims a new power peak of 292bhp (up from 247bhp) and 332lb ft at just 2115rpm.
The Mazda 3 MPS hails from BBR GTI in Brackley, but because a BBRs demonstrator isn't available, weve been lent a customers car. This Stage 2 conversion, features a remap, high-flow exhaust downpipe and sports cat and a higher-flow fuel pump and inlet hoses. It is the only car here to have modifications to the turbo. Coupled with the 2. 3-litre MZR engine's big, brawny characteristics, the claims are 350bhp and a wild-sounding 368lb ft.
However, this car was booked in for a larger turbocharger (and full suspension upgrade) after wed driven it and, in BBRs opinion, the front-mounted (as opposed to standard top-mounted) intercooler fitted by the owner hurts the claimed outputs and throttle response when combined with a standard-sized turbo. Well see. As is, the engine mods cost 2890.
K-Tec Racings Renault Megane RS 250 follows the standard route of remap coupled with a replacement air filter and new cat-back exhaust, but also features a new intercooler. The claims are 295-300bhp and 320lb ft, with as much as 80lb ft more than the standard car at 2600rpm. The price for this, including fitting and a years warranty, is 1691. Unfortunately, K-Tecs Nitron adjustable coil-over suspension-equipped demonstrator was unavailable, so were using a privately owned car with the above modifications plus 19-inch alloy wheels and Eibach lowering springs.
Finally, theres the Thorney Motorsport Vauxhall Astra VXR-R, a limited edition of 100, although tuning parts are available separately. On the engine side, theres a three-inch exhaust with sports cat, a replacement panel air filter and a remap, giving 320bhp and 310lb ft.
Thorney has kept the standard switchable dampers but fitted its own springs and tweaked the suspension geometry, changing the factory 20-inch wheels for some lighter versions. Importantly of all, the VXR-R is available from any Vauxhall dealer, with a lifetime warranty. Youll pay 3749 for the privilege.
In a straight line
Theres no denying a 0-60mph launch provides a universally-understood barometer of acceleration. But with a split between privately owned vehicles and company demos, a greasy, near-freezing runway surface, it seems neither fair nor particularly revealing to try to spring this quartet off the line against the clock.
So weve decided to stroll away from rest and then give it the lot in second gear before 20mph. From there, itll be flat out through the gears until the end of the runway looms large, hopefully to about 150mph. Well add in-gear runs over set increments (30-50mph, 40-60mph, 50-70mph) in third, fourth and fifth, to get an idea of real-world flexibility.
First up is the Focus. Theres more of the offbeat snort filling the cabin, but its not so raucous to be irritating. Despite a leisurely launch, introducing all the torque in second gear has the front tyres on the cusp of wheelspin. 30-70mph is dispatched in 4. 9sec, a couple of tenths up on Autocar's road test figures, and it is nearly half a second quicker from 80-100mph before snagging a genuine 150mph.
However, the in-gear figures prove the most startling. All the increments in third gear are nearly half a second quicker than those of the road test car, and the unmatched linearity of the figures across fourth and fifth shows the ST has the widest and most usable powerband.
After feeling the force of the Mazdas acceleration from the drivers seat, its a shock to discover that it takes until 100mph for it to overhaul the Focus. Thats partly a result of the Fords brazen low-revs delivery but partly as, currently configured, the 3 MPS has too much turbo lag.
With fewer gearchanges required at three-figure speeds, the Mazda is off like a greyhound and comfortably exceeds 150mph - almost five seconds before the growling Ford. Third-gear increments are as quick as anything, but higher gears show the laggy side of the delivery, particularly the yawning 30-50mph time in fifth.
The K-Tec Renault is a savage thing. The F4RT engine's uniquely nasally voice is brought to the fore here whether you like it or not. Its the quickest to 100mph, but suprisingly fails to reach 150mph. It also scores the lowest in-gear increment time: 2. 3sec for 30-50mph in third, which translates as awesome and immediate overtaking potential. The figures in fourth and fifth show that it has the legs on the Ford on full boost, but not the same freakishly wide window of response.
On to the Astra VXR-R, which, because its still in development, is not yet giving the sort of figures promised. Its close to the Ford and Renault until 60mph, and even holds a lead over the Mazda, but then falls steadily further behind, just reaching 140mph before our emergency braking intervenes. It also has the slowest in-gear times, whatever the increment. However, it absolutely demolishes the standard VXR weve brought along for comparison.
On the road
On Leicestershires serpentine back roads, in the dark and with temperatures around freezing, the Ford is a maniac. Its non-brand tyres that scupper its chances of providing rapid cross-country pace. It wants to wheelspin everywhere, and the experience centres on how deft you are with your right foot. The new mapping allows accurate modulation of the throttle, but theres no denying that the torque comes in rapidly. Whether this unruliness comes from the tyres, or because it lacks Revoknuckle struts and a limited-slip diff is hard to say. Nevertheless, the ST is an embarrassingly effective overtaking device, as our in-gear times proved.
The Mazda is similarly wayward, if for different reasons. The limited-slip diff does its best to contain the torque, but in these conditions its sniffing from verge to centre line and requires a firm hand. The 3 MPS was never our favourite hot hatch when new, but this 50,000 miler feels spongy and vague, dominated by the power. Having tried BBRs full-house demonstrator with Koni dampers, I know that its a massive improvement on Mazdas offering but, as is, this is more about accelerative thrills.
The Renault is even more aggressive than usual with this immediate grunt on tap. That the car handles it wont surprise anyone familiar with the base cars talents. Its firm and uncompromising, a good deal removed from the kind of experience offered by a Golf GTI. But it's also the most fun to drive around Bruntingthorpes simple circuit and very effective out on the road.
The biggest surprise is the VXR-R. A 40mm suspension drop sounds like the last thing the Astra needs, but the revised spring rates work well with the dampers and even the firmest setting is now usable on the road. The new mapping has removed the standard cars petulant throttle response. Leave it in Normal and the Astra flows, damping out the worst of the sudden dips in the road. Its not as invigorating as the Renault, but right here, in these conditions and to get home in, its very appealing.
So what have we learnt? A used Mazda 3 MPS is a cracking basis for creating a 160mph-plus hot hatch; dont fit naff tyres to a car that can breach 150mph with ease; the Megane RS is even better with a bit more squirt; the Astra VXR has potential. . .
And yet, for all their speed, is this type of hot hatch heading into a developmental cul-de-sac? A humbly shod, year-2000 standard Subaru Impreza Turbo would have outrun them in these conditions, and although theyre faster, they dont necessarily offer the entertainment of their forefathers with half the power.
And now, with the arrival of the 30k BMW M135i – which is appreciably faster than even these tuned cars – the high-power/high-cost hot hatch is under significant pressure from above. Nevertheless, buy used and tune intelligently and its hard to match the package of performance and practicality on offer here.