stuarted
Member
Registered: 17th Aug 09
User status: Offline
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Hi all, new member here. Getting my old dears Sport as a second car and daily driver, my weekend and track toy is an Imprea P1.
Read a bit on the site re mods that has been helpful. My original thoughts were de-cat original exhaust and a panel filter.
I've seen that the OE inlet manifold is restrictive and that "Flame" sells ones. How much improvement over standard are these and whats the cost?
Also seen that you can de-restrict the air box. How would I go about doing that?
Thanks in advance
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dalejones
Member
Registered: 9th Dec 08
Location: Swansea, Wales
User status: Offline
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hmm well in my opinion there crap! ive bought inlets for my 1.4 and 1.6 sport and i just find fukall difference just a little push at top revs its not worth all the work thats involved to fit them just for a little gain so personally wouldnt bother hope it helps!
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AlexW
Member
Registered: 25th Oct 08
Location: Essex
User status: Offline
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Now the above is wrong lol
Powerboxes as there known add around 15-20bhp, noticable to say the least. The power is all up the top on these engines anyway.
I have one fitted to my 1400 and i can say it did make a differance, throttle responce is quicker too.
The airbox is easy, once you pop the top off your see a pipe inside, simply remove this pipe (some just slot out once youved popped off the little bit holding it down, others you have to break)
And the bottom side your best of removing the pipe that goes to the slam panel and also the pipe inside the bottom of the airbox, again same as above.
Your notice a more throaty sounding engine and a slighty deeper exhaust note even with the standard exhaust.
De-cat is a good idea yes, getting the rev limit raised is also a good idea, although not cheap.
Other than that a good service is best. Not much else worth doing unless you want to spend big bucks.
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
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powerbox is a must on the 14 and 16 engines, as AW06 states the power delivery for these engines is really high up the rev range, you'll feel it start to pull harder/power bad at around 4.5k to the red line, without spending silly money i'd just say make the car breath easyer,
de restrict air box
panel filter (pippercross or KnN)
Flame or VX16V inlet manifold (VX ones are made better imop)
Free flowing back box (center section is free flowing anyway)
After market exhaust manifold (janspeed one is highly recomended by almost everyone here)
De-cat or Sport cat (needs a cat for mot time)
ARP conrod bolts (need to be countersunk but itsnt to big a job)
Raised Rev limmit to 7-7.5k and you'll be laughing
oh and a bloody good service
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stuarted
Member
Registered: 17th Aug 09
User status: Offline
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thanks for the feedback troops, get it Thursday so will start on the airbox. Do any holes left need to be blocked off?
Where do I source one of the VX inlets?
ARC conrod bolts - can you get at these via the sump?
Cheers again
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gez bay
Member
Registered: 14th Feb 08
Location: South Wales drives: Vxr
User status: Offline
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i have all your needs for sale  http://corsasport.co.uk/board/viewthread.php?tid=513982
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philip2
Member
Registered: 1st Oct 06
Location: n.wales/chester
User status: Offline
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ARP rod bolts not ARC. yeah you can change them just take the downpipe and sump off.
the inlets make a hell of a differance. dale - something must of been knackered on yours if didnt see much gain.
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Pete_vxl
Member
Registered: 24th Nov 06
Location: Lochgelly, Fife
User status: Offline
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flame inlet
4-1
de-cat
full stainless
rebuild
128bhp for my old sport.
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dalejones
Member
Registered: 9th Dec 08
Location: Swansea, Wales
User status: Offline
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Bollax I got the same spec an my mates is standard an it rite up my ars LOL
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
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then your car has some serious issues then mate,
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Pete_vxl
Member
Registered: 24th Nov 06
Location: Lochgelly, Fife
User status: Offline
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quote:
Originally posted by dalejones
Bollax I got the same spec an my mates is standard an it rite up my ars LOL
were you talking to me?
my car had the same power as a 2l 8v and would easily beat any corsa apart from an xe. I think your car needs checked out if it isnt pulling away from a standard corsa.
Just from your grammer i'm guessing your corsa is an absolute dog too...
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dalejones
Member
Registered: 9th Dec 08
Location: Swansea, Wales
User status: Offline
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u get that from grammer :S wot u on about nuthin wrong with my corsa it goes well im just sayin u wnt be seein 15 - 20 bhp! no chance!
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philip2
Member
Registered: 1st Oct 06
Location: n.wales/chester
User status: Offline
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you'll be suprised how much power you do see. i used to beat my mates 20xe corsa up to about 80-90, then he pulled away.
we have a stretch of road up a hill called bridge test..as name says...see what can get up the hill to the bridge then ease off. i used to hit 120 while mates mk4 astra gsi would hit about 130 or so. so yeah they do add quite abit of power
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dalejones
Member
Registered: 9th Dec 08
Location: Swansea, Wales
User status: Offline
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wot and that was just standard with a flame type inlet? that 20xe must have been shite then
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philip2
Member
Registered: 1st Oct 06
Location: n.wales/chester
User status: Offline
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own inlet, but essentially the same, but i do do all my own engine work, so i had 80mm pistons, head work, etc etc
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moggz
Member
Registered: 23rd Apr 09
Location: wales
User status: Offline
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i have 1 on my gsi emgine and it gives a big kick at the end
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djmattyh
Member
Registered: 20th May 08
Location: Shropshire Drives: 1.6 corsa sport
User status: Offline
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i have done this in the past i had a custom manifold, a four branch & decat. and rolling road figure was - 136bhp. and that was a 1.6 sport! and from 106 bhp - 136bhp there is hell of a difference imo. some people on here talk out there arses
[Edited on 21-08-2009 by djmattyh]
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