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Author If you were building a Corsa B track/road car...
lee303
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Registered: 1st Jul 08
Location: under the nova usually
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7th Dec 10 at 15:58   View User's Profile U2U Member Reply With Quote
most coilover kits are specced for rally cars who want a fairly soft rear setup, for tarmac and circuit work you want the poundage up, as it hells keep the inside front wheel on the ground(imagine as the cornering forces cross the car diagonally as you load it up, harder springs mean the front lifts less under acceleration/lateral loading) people often complain hard springs are crashy as the damper isn’t valved right, hence damping adjustability on a coilover is a must!
jr
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Registered: 20th May 02
Location: Kent
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7th Dec 10 at 15:59   View User's Profile U2U Member Reply With Quote
and there is the science................
lee303
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Registered: 1st Jul 08
Location: under the nova usually
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7th Dec 10 at 16:01   View User's Profile U2U Member Reply With Quote
same reason, albeit achieved differently, that you fit a stiff rear bar too, the rear probably affects turn in more than the front to a point!
lee303
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Registered: 1st Jul 08
Location: under the nova usually
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7th Dec 10 at 16:02   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by jr
and there is the science................


shhhhh, don’t tell the internet its a science, its all smoke and mirrors!
jr
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Registered: 20th May 02
Location: Kent
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7th Dec 10 at 16:04   View User's Profile U2U Member Reply With Quote
i can see that, coilspringssshould be making my custom rear springs now come to think of it thats when i foiind out the fronts are wayyyyy to soft
lee303
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Registered: 1st Jul 08
Location: under the nova usually
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7th Dec 10 at 16:06   View User's Profile U2U Member Reply With Quote
really? how soft? good lads coilsprings though...
Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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7th Dec 10 at 16:23   View User's Profile U2U Member Reply With Quote
I made a thread on PNG a while ago about using hard rear springs, some people said it was good on track

iirc spanishfly was using 450 on the back and 300 on the front
lee303
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Registered: 1st Jul 08
Location: under the nova usually
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7th Dec 10 at 17:08   View User's Profile U2U Member Reply With Quote
spanish had 350s in the back iirc, he would probably have ended up with 400s though
AK
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Registered: 5th Jul 00
Location: Aberdeen City
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7th Dec 10 at 17:10   View User's Profile U2U Member Reply With Quote
We use 700lb all round on one car, and about 450F, 400R on the Impreza.

Impreza will need harded springs - but it has been revalved to take them!
smcGSI16V
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Registered: 26th May 03
Location: Farnborough Drives: Thurlby 888 CDTi No.98
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7th Dec 10 at 17:19   View User's Profile U2U Member Reply With Quote
Like I say, I believe mine were 300lb rear springs.
JM_16v
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Registered: 17th Oct 05
Location: Essex Drives: GLC63S
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7th Dec 10 at 17:34   View User's Profile U2U Member Reply With Quote
id buy a 106 gti
corsagsigav
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Registered: 28th Jan 08
Location: Retford, Nottinghamshire
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7th Dec 10 at 17:50   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Warren G
id put a z18xer with a z16let head and turbo on dta, 220bhp easy



that sounds interesting talk to me about this warren what would you be looking at cost and parts needed
Warren G
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Registered: 14th May 06
Location: Kent
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7th Dec 10 at 18:14   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by corsagsigav
quote:
Originally posted by Warren G
id put a z18xer with a z16let head and turbo on dta, 220bhp easy



that sounds interesting talk to me about this warren what would you be looking at cost and parts needed


f17 gearbox £100
second hand z18xer £750
http://cgi.ebay.co.uk/VAUXHALL-ASTRA-2007-2009-MK5-1-8-16v-ENGINE-Z18XER-16K-/300481264044?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item45f61439ac
corsa vxr turbo, downpipe and exhaust, oil filter housing/oil cooler
oil feeds/coolant feeds all off a vxr £500-£600

Custom intercooler/pipe work d/v £300

DTA £600, mapping £400

Custom engine mount

run 8-10psi of boost prob see 220-250bhp
willay
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Organiser: South East, National Events
Premium Member

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Registered: 10th Nov 02
Location: Roydon, Essex
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7th Dec 10 at 18:39   View Garage View User's Profile U2U Member Reply With Quote
Ollie you need to spend at least 3 times the car's worth on modifying it, its the only way.
corsadonk
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Registered: 4th Jul 09
Location: Marlborough, Wiltshire
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7th Dec 10 at 18:50   View Garage View User's Profile U2U Member Reply With Quote
Sod it stick a 20XE in it with a ATB. You can't beat grunt in a straight line
Ian
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Registered: 28th Aug 99
Location: Liverpool
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7th Dec 10 at 18:52   View Garage View User's Profile U2U Member Reply With Quote
Small engine on the cheap, drive it fast.

Why you would want thousands of pounds in a car you're going to lash about I'm not clear.

They'll brake and turn in the same regardless of how much power it has.

Grunt in a straight line is for people who can't drive around corners.
willay
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Organiser: South East, National Events
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Registered: 10th Nov 02
Location: Roydon, Essex
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7th Dec 10 at 18:54   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Ian
Why you would want thousands of pounds in a car you're going to lash about I'm not clear.


because its fun and it gives Paul_J the middle finger.
Ian
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Registered: 28th Aug 99
Location: Liverpool
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7th Dec 10 at 18:57   View Garage View User's Profile U2U Member Reply With Quote
Just catch him up on the bends?
Ojc
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Registered: 14th Nov 00
Location: Reading: Drives : Clio 197
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7th Dec 10 at 19:01   View User's Profile U2U Member Reply With Quote
x16xe
256 cams
janspeed manifold
inlet
custom poundage springs
whiltine arb
strutbraces/cage
polybushes
256mm brakes
r888
Ojc
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Registered: 14th Nov 00
Location: Reading: Drives : Clio 197
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7th Dec 10 at 19:01   View User's Profile U2U Member Reply With Quote
Corbeau seats
Harnesses
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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7th Dec 10 at 19:03   View Garage View User's Profile U2U Member Reply With Quote
recaro seats will give you more power and better handling
Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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7th Dec 10 at 19:07   View User's Profile U2U Member Reply With Quote
remap?
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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7th Dec 10 at 19:20   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by JM_16v
id buy a 106 gti



I know of a good vts for sale


Will be good to see another corsa b on track though

Drives supercharged Tec with torque
AK
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Registered: 5th Jul 00
Location: Aberdeen City
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7th Dec 10 at 19:22   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Ojc
x16xe
264 cams
janspeed manifold
inlet
custom poundage springs
whiltine arb
strutbraces/cage
polybushes
300mm brakes
r888

sump off, fit ARP rod bolts. Whilst doing cams swap to metal rollers. Also look into a baffled sump whilst your planning....

smcGSI16V
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Registered: 26th May 03
Location: Farnborough Drives: Thurlby 888 CDTi No.98
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7th Dec 10 at 19:23   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Ojc
x16xe
256 cams
janspeed manifold
inlet
custom poundage springs
whiltine arb
strutbraces/cage
polybushes
256mm brakes
r888
Corbeau seats
Harnesses





you know that makes sense.

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