Saxo Engine/Performance If you're interested in tuning Saxo engines, or if you need to know something which is engine related... this is the place for you. |
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15th June 2019, 20:10
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#1
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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4-2-1 racing manifold & boost valve
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15th June 2019, 21:03
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#2
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Saxperience Post Whore
Join Date: Jul 2010
Location: Morley, Leeds
Posts: 8,469
Car(s): Civic ep3 type r powered by TDI NORTH
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I can understand the manifold but why the fuel pressure reg? Will literally do nothing but cause problems and take time to fit
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16th June 2019, 19:49
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#3
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by Bedford126
I can understand the manifold but why the fuel pressure reg? Will literally do nothing but cause problems and take time to fit
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Good advice, i know nothing about them. The manifold more as i need a new one anyway. So that 4-2-1 is a racing manifold then?
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17th June 2019, 01:40
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#4
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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Quote:
Originally Posted by RichSaxoVTR
Good advice, i know nothing about them. The manifold more as i need a new one anyway. So that 4-2-1 is a racing manifold then?
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Define "racing" ?
It's a manifold built for better performance over standard, that's all. As previously stated fuel pressure reg is pointless unless you've done serious engine work.
What are you looking to achieve? Is the rest of your exhaust / air intake system standard?
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17th June 2019, 19:03
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#5
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Saxperience Forum Bum
Join Date: Jul 2010
Location: South Wales
Posts: 3,074
Car(s): ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.
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you never ever need that pressure reg, only bin worthy.
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17th June 2019, 19:27
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#6
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by JamesR
Define "racing" ?
It's a manifold built for better performance over standard, that's all. As previously stated fuel pressure reg is pointless unless you've done serious engine work.
What are you looking to achieve? Is the rest of your exhaust / air intake system standard?
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I've had my VTR remapped, air induction kit fitted and a sports exhaust full kit fitted. My current manifold needs changing anyway as it's fucked-as it's stock from new/been on there for years. A 4-2-1 is a perfect add on now right?
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17th June 2019, 19:28
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#7
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by welshpug
you never ever need that pressure reg, only bin worthy.
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Don't worry took everyone's advice and not adding one.
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19th June 2019, 21:15
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#8
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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Quote:
Originally Posted by RichSaxoVTR
I've had my VTR remapped, air induction kit fitted and a sports exhaust full kit fitted. My current manifold needs changing anyway as it's fucked-as it's stock from new/been on there for years. A 4-2-1 is a perfect add on now right?
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Would of been best to add the manifold before the map, but yeah, a good addition
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20th June 2019, 19:59
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#9
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by JamesR
Would of been best to add the manifold before the map, but yeah, a good addition
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Thanks for the information. As I didn't add it before the map, will it make much difference?
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26th June 2019, 03:54
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#10
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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Quote:
Originally Posted by RichSaxoVTR
Thanks for the information. As I didn't add it before the map, will it make much difference?
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Will be louder that's for sure. Not sure if your cat is in the manifold, if it is should be more of a power gain too, don't expect anything amazing, extra couple of bhp.
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28th June 2019, 18:25
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#11
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by JamesR
Will be louder that's for sure. Not sure if your cat is in the manifold, if it is should be more of a power gain too, don't expect anything amazing, extra couple of bhp.
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Cheers.
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28th June 2019, 19:02
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#13
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Saxperience Forum Bum
Join Date: Jul 2010
Location: South Wales
Posts: 3,074
Car(s): ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.
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longer primaries and secondaries are better, so I would go for the second however its not designed for the phase2 oil filter setup so you'll need to change to the earlier metal cartridge type instead of the paper element.
the first one appears to be made as a direct fit and wiggles towards the right to miss the filter housing, but has mega short primaries.
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28th June 2019, 19:11
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#14
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by welshpug
longer primaries and secondaries are better, so I would go for the second however its not designed for the phase2 oil filter setup so you'll need to change to the earlier metal cartridge type instead of the paper element.
the first one appears to be made as a direct fit and wiggles towards the right to miss the filter housing, but has mega short primaries.
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You got a link for one to fit a phase 2 vtr which does the job as we agreed?
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28th June 2019, 19:13
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#15
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by welshpug
longer primaries and secondaries are better, so I would go for the second however its not designed for the phase2 oil filter setup so you'll need to change to the earlier metal cartridge type instead of the paper element.
the first one appears to be made as a direct fit and wiggles towards the right to miss the filter housing, but has mega short primaries.
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Which you would recommend.
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2nd September 2019, 19:05
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#16
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Just to bump this thread. What 4-2-1 manifold would people recommend for a phase 2, 2001 Saxo VTR which has been remapped, air induction kit fitted and a sports exhaust full kit fitted?
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3rd September 2019, 17:03
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#17
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Saxperience Post Whore
Join Date: Jul 2010
Location: Morley, Leeds
Posts: 8,469
Car(s): Civic ep3 type r powered by TDI NORTH
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Both the ones you have listed are fusion welded and made from some high quality Chinese steel. I personally would go for the second one, if you want it to last I would get it re welded with back purge and a 304 stainless filler rod, vibrations will crack the fusion welds on these.
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Last edited by Bedford126; 3rd September 2019 at 17:09.
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12th September 2019, 20:37
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#18
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Infrequent Poster
Join Date: Oct 2018
Location: Birmingham
Posts: 112
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Quote:
Originally Posted by Bedford126
Both the ones you have listed are fusion welded and made from some high quality Chinese steel. I personally would go for the second one, if you want it to last I would get it re welded with back purge and a 304 stainless filler rod, vibrations will crack the fusion welds on these.
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Cheers.
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