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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24th May 2007, 20:25
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#1
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Regular Poster
Join Date: Aug 2006
Location: S Wales
Posts: 438
Car(s): Citroen Saxo Westcoast
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advantage of vts box on 1.4
What would be the advantage of using a vts box on my 1.4, would there be noticeable better acceleration?
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24th May 2007, 21:30
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#2
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Frequent Poster
Join Date: May 2006
Posts: 691
Car(s): Mk 1 VTS poseidon blue
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If you tell me what the rev limiter on the 1.4 is and what diameter your tyres are ill work out the speeds in each gear for both boxes for you! There should be a slight increase in acceleration... not sure how noticeable it would be though
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24th May 2007, 21:40
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#3
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Regular Poster
Join Date: Oct 2005
Location: Leicestershire
Posts: 435
Car(s): Audi S3 quattro (1.8T, 241bhp) - '02.
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I'm giving it a good guess that the limiter is 6250 like the 1.1's and VTR's.
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24th May 2007, 22:05
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#4
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Frequent Poster
Join Date: May 2006
Posts: 691
Car(s): Mk 1 VTS poseidon blue
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1.4box @6250rpm 56cm diameter tyres (guess)
1st 29.9mph
2nd 55.8mph
3rd 85.3mph
4th 106.1mph
5th 142.0mph
VTS box @ 6250rpm 56cm diameter tyres (guess)
1st 30.0mph
2nd 53.4mph
3rd 76.5mph
4th 99.1mph
5th 122.5mph
It should accelerate a bit harder… not by loads though don’t know how noticeable it would be… will pull harder most noticeably in 3rd and 5th thought it wont be as good for cruising on the motorway – shouldn’t be too bad though
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24th May 2007, 22:20
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#5
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Regular Poster
Join Date: Oct 2005
Location: Leicestershire
Posts: 435
Car(s): Audi S3 quattro (1.8T, 241bhp) - '02.
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Whats that compared with a 1.1 box? Is the 1.1 shorter than the 1.4? I think it was a bit. Similra to a VTR apart from final drive.
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24th May 2007, 22:42
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#6
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Frequent Poster
Join Date: May 2006
Posts: 691
Car(s): Mk 1 VTS poseidon blue
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1.1box @ 6250rpm (56cm diameter tyres)
1st 28.1mph
2nd 53.1mph
3rd 75.3mph
4th 93.6mph
5th 125.2mph
Slightly shorter ratios in 1st and 2nd for the 1.1 but a bigger final drive- 4.268 for the 1.1 and 3.765 for the 1.4
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24th May 2007, 22:51
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#7
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Established Member
Join Date: Dec 2005
Location: United Kingdom (England)
Posts: 1,417
Car(s): Saxo Derrrr LMAO
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so it better to have a 1.4 gearbox then??
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24th May 2007, 22:58
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#8
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by Global_discovery
Whats that compared with a 1.1 box? Is the 1.1 shorter than the 1.4? I think it was a bit. Similra to a VTR apart from final drive.
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1.1 box doesnt have sports ratios, is not a good box.
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24th May 2007, 23:12
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#9
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Frequent Poster
Join Date: May 2006
Posts: 691
Car(s): Mk 1 VTS poseidon blue
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Quote:
Originally Posted by Itsafastworld85
1.1 box doesnt have sports ratios, is not a good box.
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Agreed I think it’s got a weaker diff also
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24th May 2007, 23:13
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#10
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Frequent Poster
Join Date: May 2006
Posts: 691
Car(s): Mk 1 VTS poseidon blue
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Quote:
Originally Posted by Ma5on
so it better to have a 1.4 gearbox then??
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Not necessarily… depends what your after… economy then the 1.4 box would be better.
For performance the VTS
Imagine your in 5th gear with your foot to the floor in the 1.4 box… and say you’ve only have the power get about 115-120mph and its geared to do 140… where as if you have a VTS box that’s geared to do about 122ish you will get there quicker and might even hit the limiter in 5th
The more you gear the engine speed down - the more torque you get to the wheels and the quicker you will get through the gears
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24th May 2007, 23:20
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#11
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by Joesnow
Agreed I think it’s got a weaker diff also
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it uses a smaller diff. ive said it many times
1.1 boxes are shit. the myth that theyre like a vts box needs to stop
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24th May 2007, 23:21
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#12
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by Joesnow
Not necessarily… depends what your after… economy then the 1.4 box would be better.
For performance the VTS
Imagine your in 5th gear with your foot to the floor in the 1.4 box… and say you’ve only have the power get about 115-120mph and its geared to do 140… where as if you have a VTS box that’s geared to do about 122ish you will get there quicker and might even hit the limiter in 5th
The more you gear the engine speed down - the more torque you get to the wheels and the quicker you will get through the gears
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can allways use different 5th gears if you want though
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25th May 2007, 00:45
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#13
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Saxperience Post Whore
Join Date: Jan 2007
Posts: 7,705
Car(s): Saxo VTS
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Are the 1.4 box's as strong as the VTR and/or VTS box's?
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25th May 2007, 00:46
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#14
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by James_Bristol
Are the 1.4 box's as strong as the VTR and/or VTS box's?
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smaller diff.
mine has taken lots of abuse though. 2 track days.
110in 4th on many occasion lol
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25th May 2007, 00:47
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#15
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Join Date: Jan 2007
Posts: 7,705
Car(s): Saxo VTS
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Thats ok then, with keeping the 1.4 engine std ish power it should be ok anyway as is designed to last with that power/torque..
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25th May 2007, 00:49
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#16
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by James_Bristol
Thats ok then, with keeping the 1.4 engine std ish power it should be ok anyway as is designed to last with that power/torque..
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my vtr has more power and torque and hasnt killed it yet
but then again i have heard of a term known as 'mechanical sympathy'
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25th May 2007, 00:50
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#17
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Saxperience Post Whore
Join Date: Jan 2007
Posts: 7,705
Car(s): Saxo VTS
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Quote:
Originally Posted by Itsafastworld85
my vtr has more power and torque and hasnt killed it yet
but then again i have heard of a term known as 'mechanical sympathy'
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Thats ok then, the last thing i want is my box to die..
True, no good banging it into gears crunching etc..
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2001 Silver Saxo VTS - Lowered 40mm - Everything Else 100% Original
Total Saxo Enthusiast
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25th May 2007, 01:01
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#18
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by James_Bristol
Thats ok then, the last thing i want is my box to die..
True, no good banging it into gears crunching etc..
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ive got a spare 1.4 box here anyway! along with my spare broken s1 rallye box, and xsi final drive LOL
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25th May 2007, 01:03
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#19
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Saxperience Post Whore
Join Date: Jan 2007
Posts: 7,705
Car(s): Saxo VTS
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Ooo, how much would you want for the 1.4 box??
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2001 Silver Saxo VTS - Lowered 40mm - Everything Else 100% Original
Total Saxo Enthusiast
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25th May 2007, 01:17
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#20
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by James_Bristol
Ooo, how much would you want for the 1.4 box??
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dpnno. bout £75 ono
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