c4rsa-sport
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Registered: 6th Apr 05
Location: halesowen - birmingham
User status: Offline
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i wanna get a 4 into 1 manifold for my corsa 1.6 sport just wonderin where r they best places that do them?? ne ideas?
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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dont get a 4-1
get a 4-2-1.
a 4-1 will gain power at the top end of the rev range, but will sacrifice low down tourque, a 4-2-1 will give better mid range tourqe and power gains lower and at high revs.
go for an sbd one if u can afford it (£350+), or a janspeed one for £180 is about the best.
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Twiggy
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Registered: 15th Oct 04
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What about for a xe???
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Stu_22
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Registered: 25th Mar 02
Location: Luton
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4-1 insnt that what the SBD one is if so I think its worth it but it has a hefty price.
So janspeed best choice. Dont bother with lexmaul it exactly the same shape and they say it stainless but unless you polish it every week it will rust
Xe has a pretty good manifold as standard I think
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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The One SBD sell is a 4-1 made by BTB, and be fair probably better due to the space allowed to fit OE.
and making the assumption all 4-1 are crap bottom and middle good top and all 4-2-1 are good middle loss so top is also a gross assumption.
It all really depends on th elength of th eprimaries and secondry. If you want a the best manifold you can get, then you'll be looking at a manifold that finishes after the gearshifter under the car.
Just get a janspeed one, you'll get no extra gain from spending more.
James
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c4rsa-sport
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Registered: 6th Apr 05
Location: halesowen - birmingham
User status: Offline
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where bouts do i get the 4-2-1 from and r they easy 2 fit? and wot kinda power we talkin about wot i will gain
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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it will free up a few brake, but the std cast one isn't restrictive till around 120 imo.
You'll see about 2-3BPH at a guess.
It's more a mod to
A)make the engine bay look nicer
B)it's now holding back the power.
Janspeed do a 4-2-1 that's round 160-170 is the cheapest I've seen it.
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c4rsa-sport
Member
Registered: 6th Apr 05
Location: halesowen - birmingham
User status: Offline
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ok cheers people
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