mar_cus
Member
Registered: 29th Apr 09
Location: Congleton, Cheshire
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So thought i'd start a little dicussion on the inlet manifold for the 1600's. Now i've seen people on here claiming you can reach a 20bhp gain, but is this actually true? Not actually seen much proof posted about!
Just wondering which inlet you have, whether its the dblias, mantzel or the VX ones, and what gains you've seen!
I've got a VX one, but my car isn't on the road yet, and looking forward to see what difference it makes!
Also a quick question, the clearence on mine, between where the throttle body and the bulk head is erm, pretty much nothing. Is this the case for anyone else? If so, what did you do about it? Just thought that if you put your foot down and the engine rocks back, it might bend the inlet?
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Ojc
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Registered: 14th Nov 00
Location: Reading: Drives : Clio 197
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106bhp Corsa GSi with just an inlet made 121bhp on the rollers, 15bhp increase.
With a higher limiter you might mate 20bhp.
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mar_cus
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Registered: 29th Apr 09
Location: Congleton, Cheshire
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Thats a good increase! Which inlet is that with? And did you inlet have much clearence off the back of the bulk head?
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Ronson
Member
Registered: 6th Dec 10
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C16XE with an inlet and exhaust system saw 140 BHP, although the rollers were probably out.
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IvIarkgraham
Premium Member
Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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inlet and exhaust got me 125
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shaunmods
Premium Member
Registered: 12th Mar 07
Location: Glascote, Staffordshire
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I'd love to know what mines putting out. I've got a VX performance one on mine and love it! I know what you mean about them being close to the bulkhead though, Mines scratched the paint off a bit but other than that its fine
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mar_cus
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Registered: 29th Apr 09
Location: Congleton, Cheshire
User status: Offline
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quote:
Originally posted by Ronson
C16XE with an inlet and exhaust system saw 140 BHP, although the rollers were probably out.
Thats mad, it this is accurate!
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mar_cus
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Registered: 29th Apr 09
Location: Congleton, Cheshire
User status: Offline
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quote:
Originally posted by shaunmods
I'd love to know what mines putting out. I've got a VX performance one on mine and love it! I know what you mean about them being close to the bulkhead though, Mines scratched the paint off a bit but other than that its fine
Yeah, well i think a rolling road day is in order once my car is sorted for me! My VX inlet is actually touching the bulk head with on the the sensor plugs... 
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Ronson
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Registered: 6th Dec 10
User status: Offline
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quote:
Originally posted by mar_cus
quote:
Originally posted by Ronson
C16XE with an inlet and exhaust system saw 140 BHP, although the rollers were probably out.
Thats mad, it this is accurate!
I doubt it mate, the owner of the car even said he doubts its more than 120.
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mar_cus
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Registered: 29th Apr 09
Location: Congleton, Cheshire
User status: Offline
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quote:
Originally posted by Ronson
quote:
Originally posted by mar_cus
quote:
Originally posted by Ronson
C16XE with an inlet and exhaust system saw 140 BHP, although the rollers were probably out.
Thats mad, it this is accurate!
I doubt it mate, the owner of the car even said he doubts its more than 120.
Oh right, still thought, still a decent gain if its more than 10bhp!
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smcGSI16V
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Registered: 26th May 03
Location: Farnborough Drives: Thurlby 888 CDTi No.98
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My mantzel on my c16xe took it from a previous rr result of 103bhp (standard except exhaust) to 118 bhp.
Then added a manifold and modded airbox with panel filter and it took it to 124bhp.
No 1600 now is going to have the same power as book figures. So you will always be starting from less to start with.
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mar_cus
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Registered: 29th Apr 09
Location: Congleton, Cheshire
User status: Offline
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quote:
Originally posted by smcGSI16V
My mantzel on my c16xe took it from a previous rr result of 103bhp (standard except exhaust) to 118 bhp.
Then added a manifold and modded airbox with panel filter and it took it to 124bhp.
No 1600 now is going to have the same power as book figures. So you will always be starting from less to start with.
That sounds more reasonable, and is decent 
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Pete_vxl
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Registered: 24th Nov 06
Location: Lochgelly, Fife
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I made 128 with 'flame' inlet, 4-1, decat, full ss jetex exhaust. Give or take 1/2 bhp but standard 106's and type r pulled out book figures that day. My engine was rebuilt 10k before this.
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SEAN_P_
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Registered: 30th Nov 09
Location: *Washington*North-East*
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i have been wondering about powerboxes to
some people say they work and others
say they dont ?????
i have recently rebuilt my c16xe (everything) and ported it.
i obv want it quicker but dont know what
route to take
currently stands:- ported head, sportex decat pipe, sportex non silenced centre pipe and sportex back box 3"
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Pete_vxl
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Registered: 24th Nov 06
Location: Lochgelly, Fife
User status: Offline
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Whoever says it doesnt work has a seriously broken car or they have just put a kellogs box in their engine bay.
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SEAN_P_
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Registered: 30th Nov 09
Location: *Washington*North-East*
User status: Offline
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mar_cus
Member
Registered: 29th Apr 09
Location: Congleton, Cheshire
User status: Offline
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quote:
Originally posted by SEAN_P_
i have been wondering about powerboxes to
some people say they work and others
say they dont ?????
i have recently rebuilt my c16xe (everything) and ported it.
i obv want it quicker but dont know what
route to take
currently stands:- ported head, sportex decat pipe, sportex non silenced centre pipe and sportex back box 3"
why wouldn't it work? Just wack one on! Thats pretty much the same situation and same spec as me!
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SEAN_P_
Member
Registered: 30th Nov 09
Location: *Washington*North-East*
User status: Offline
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God knows lol
i am going to get one like
what gearbox you running
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MarkSport
Member
Registered: 22nd May 09
User status: Offline
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quote:
Originally posted by smcGSI16V
No 1600 now is going to have the same power as book figures.
This
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Scotty C
Member
Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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I made 130bhp with an inlet, gaslflowed head and full exhaust
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Steve X16XE
Member
Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
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With an exhaust system mine made 114.4 bhp.
With a Mantzel fitted it made 125.2 bhp.
This was done on the same rollers and about 2 months apart.
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mar_cus
Member
Registered: 29th Apr 09
Location: Congleton, Cheshire
User status: Offline
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quote:
Originally posted by SEAN_P_
God knows lol
i am going to get one like
what gearbox you running
F15cr mate, standard c16 box. You?
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SEAN_P_
Member
Registered: 30th Nov 09
Location: *Washington*North-East*
User status: Offline
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Well i dont no atm
i think its a 1.8 (off the 18 i had) its got nothing stamped on it like
i am looking for a f13cr to wack on
oh i forgot to mention i have fitted a 1.4 flat flywheel to 
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mar_cus
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Registered: 29th Apr 09
Location: Congleton, Cheshire
User status: Offline
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u2u'd about the flywheel
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AndyCorsaSport
Member
Registered: 12th Feb 06
Location: Horsforth, West Yorkshire
User status: Offline
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My old Corsa on 110k with dbilas inlet, reprofiled cams, stainless with de-cat and a lightened flywheel made 135bhp
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