Meat-Pie-SRI
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Registered: 10th Apr 02
Location: Berkhamsted, Drives Mk4 R32
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best ways to do it pleeeeaassseeee!
thanky doo
chris 
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dousey
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Registered: 21st May 03
Location: Selsey, West Sussex
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Probably an inlet manifold, goof for 20+bhp. Look at lexmaul, mantzel powerbox and velos torq tube. Costs from £400 to about £575
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2.5corsaV6
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Registered: 17th Mar 03
Location: Ilford Essex
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quote:
Originally posted by dousey
Probably an inlet manifold, goof for 20+bhp. Look at lexmaul, mantzel powerbox and velos torq tube. Costs from £400 to about £575
do these have a web site to go to??
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dousey
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Registered: 21st May 03
Location: Selsey, West Sussex
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Yeah,
Lexmaul - www.pvdnet.co.uk
Velos - www.vmotorsport.fsnet.co.uk
Mantzel - www.courtenaysport.co.uk
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2.5corsaV6
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Registered: 17th Mar 03
Location: Ilford Essex
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cheers dousey
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dousey
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Registered: 21st May 03
Location: Selsey, West Sussex
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No worries 
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2.5corsaV6
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Registered: 17th Mar 03
Location: Ilford Essex
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wouldnt it b much easier jus to get a turbo??
u get much more power gains!!
by the way, if u fit a 2.0 lit turbo in a corsa B would the gearbox change to 6gears??
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dousey
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Registered: 21st May 03
Location: Selsey, West Sussex
User status: Offline
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quote:
Originally posted by 2.5corsaV6
wouldnt it b much easier jus to get a turbo??
u get much more power gains!!
by the way, if u fit a 2.0 lit turbo in a corsa B would the gearbox change to 6gears??
Would be talking a lot of money. If you took it to somewhere like courtenay sport they will charge you a few grand for it! Not to mention the insurance. So no, it wouldn't be easier to drop in a turbo lump. The turbo engine would come from a cav or calibra. I am not sure if these cars have 6 gears. If not you would have to pay a good few hundred for the 6 speed box.
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kerzo
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Registered: 10th Nov 02
Location: Norn Iron
User status: Offline
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quote:
Originally posted by 2.5corsaV6
wouldnt it b much easier jus to get a turbo??
u get much more power gains!!
by the way, if u fit a 2.0 lit turbo in a corsa B would the gearbox change to 6gears??
 you may get more power gains with a turbo but you will spend a lot more and it will be less reliable and you may need to uprate the internals.
the gearbox for the C20LET is an F28 which has 6 gears but i think you can use an F20 but not sure on that which is a 5 gear
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
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yes u can use a F20 box with the turbo lump which save u alot of money on parts as its not a basic fit like the F20
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2.5corsaV6
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Registered: 17th Mar 03
Location: Ilford Essex
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but if u want good amounts of BHP it would cost loads 2 get all the parts listed = mantzel powerbox, velos torq tube, inlet manifold
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dousey
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Registered: 21st May 03
Location: Selsey, West Sussex
User status: Offline
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quote:
Originally posted by 2.5corsaV6
but if u want good amounts of BHP it would cost loads 2 get all the parts listed = mantzel powerbox, velos torq tube, inlet manifold
And a turbo engine conversion would be cheaper?
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2.5corsaV6
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Registered: 17th Mar 03
Location: Ilford Essex
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kno but u get more BHP and might as well go the whole way and save up abit longer. at least u wuld be some wot more satisfied about the amount of bhp u have
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
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for most BHP per pound your will never beat a 2lt 16v
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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Yes you will. 2.0 8v.
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Tom
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Registered: 3rd Apr 02
Location: Wirral, Merseyside
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If you got enuf money get sbd t/b kit for your gsi  kewl
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luca2020
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Registered: 26th May 02
Location: Maidstone, Kent
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C20LET + F28 gearbox and fitted will cost 2.5k+, but places like courtny will charge 5k!!! lol
Turboing a gsi is unreliable, and costs 3k. u get about the same bhp as TBs, but u get alot more tourqe
TBs are very reliable, SBD jobbies cost about 2k, fitting depends on weather u do it ur self, get a mate or a garage to do it
Then u got the powerbox's e.g. velos, manzal, lexmaul - around 400-550, fitting again depends on weather u do it ur self, a mate or a garage
Miles - how much BHP does the 2.0 8v have. and how much for a conversion?
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Gary GSi
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Registered: 30th Oct 02
Location: Lincoln
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If you can fit stuff yourself for the same price as a conversion you can get the same BHP as a C20XE.
You need a mentel power box,Get rid of the whole standard exhaust system and get a lexmaul manifold,De-cat pipe and group A centre and back box, An adjustable fuel pressure regulator, At least stage 2 head work and a superchip to put the rev limiter up to about 7500RPM. And if you have any spare cash an oil cooler is worth the money.
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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2.0 8v's have 115 or 130bhp.
You can buy a whole cavalier with one of those engines in for about £100, then you have the brakes and other bits to sell as well.....
Fitting, depends who does it, engine mounts are cheap I believe and you could probably use standard shafts.... or might need to change the hubs I think....
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MoNkEy MaGiC
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Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
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yea ive heard a lot about these inlet manifolds and the amount of power and torque they can free up is Mad!!! coudnt believe how restricted these engines were!
ive been thinking of getting a inlet manifold for my gsi,and correct me if im wrong guys but i reckon the mantzel powerbox is the best so far, only thing stopping me is the insurance! what they gonna say when i tell em my cars got another 20BHP under the bonnet! how much more will the premium go up by u reckon???
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luca2020
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Registered: 26th May 02
Location: Maidstone, Kent
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yer u can tune a gsi to around 150bhp for the price of a 2.0 conversion, but u will get nowhere near the tourqe that the 2.0 produces, and tourqe as we all know well is the key to speed
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mikeytigra
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Registered: 7th Jul 03
Location: chester
User status: Offline
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also fit a power boost valve it will help in the mid range power
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Akeemking
Member
Registered: 25th Nov 01
Location: PORTUGAL
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fuk that
go for OMEGA/LOTUS 3.6 Biturbo engine
just kidding
1.6 16V or 2.0 16V and SBD TBs and Gr.A exhaust... i would if i didnt had a LET
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Paul_J
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Registered: 6th Jun 02
Location: London
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err... straying from the subject a bit?
All this guy wants is to free up some power - a cheap way of doing this is to get one of these inlet mainfolds, listed above...
they're pretty cheap £300-£500
and taking your gsi to say 126ish bhp aint bad for only £300 quid.
The guy that keeps just saying 'it'd be cheaper to chuck a turbo in' - what the F*ck?
looking at what £3000 ... then insurance on top.
Not everyone has that much money, this guy just wants a cheap way to get a bit more performance thats all!
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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to gain more power foller these steps:-
1, get ur new coilovers
2, give old ones to me
3, my car will be drivable again above 40mph an will go straight when i brake!
4, buy a new inlet, tbs etc!
lol :-)
seriously tho it all depends on ur budget dont it, i mean if u have 1.5K get a 2ltr if u only want an extra few bhp get a new zorst, maily for noise! and get a new inlet, then try a exhaust manifold an de-cat and then uni chip with raised limit
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