dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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had the car on a rolling road and the bhp is down by about 15/20 to what it should be apparently 
works out as the nova only pulls aswell as my mates mk2 gte astra with a standard as hell redtop.
The enigne in the nova has a powercap, 2 inch system im pretty sure, carbon shelled induction kit etc.
What could be making it run slow? The guys were only a small garage and im not sure they knew what was up either
looked at my air mass meter and isa bit gunked up - going to buy a new one.
But really if its running under 150bhp with a powercap and extras somethings up ey
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BarnshaW
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Registered: 25th Oct 06
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powercap, exhaust and a filter are going to give an absolute minimum in BHP increase.
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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yeh but i still dont see why the car cant pull away from an astra gte which engine is standard.
also i have an F16 box against his 20 - whats the difference in ratios?
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DAZ1985
Member
Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
User status: Offline
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quote:
Originally posted by muppetsport
Gearbox 1st 2nd 3rd 4th 5th 6th rev FDR
=========================================================
F10/F13 3.55 1.96 1.3 0.89 0.71 3.31 4.18
F15/F17w 3.73 1.96 1.32 0.95 0.76 3.31 4.18
F15/F17c 3.73 2.14 1.41 1.12 0.89 3.31 4.18
F16w 3.55 1.95 1.28 0.89 0.71 3.33 3.94
F16c 3.55 2.16 1.48 1.13 0.89 3.33 3.55
F18w(3.74) 3.58 1.87 1.23 0.92 0.74 3.33 3.74
F18c(3.57) 3.58 2.14 1.48 1.12 0.89 3.33 3.57
F20(3.55) 3.55 2.16 1.48 1.13 0.89 3.33 3.55
F20(W5a) 3.55 2.16 1.48 1.13 0.74 3.33 3.55
F20(W5b) 3.55 2.16 1.48 1.13 0.71 3.33 3.55
F20(3.72) 3.55 2.16 1.48 1.13 0.89 3.33 3.72
F23 3.58 2.02 1.35 0.98 0.81 3.31 3.84
F25 3.38 1.76 1.12 0.89 0.77 3.17 3.82
F28 3.57 2.16 1.45 1.1 0.89 0.74 3.32 3.72
F35 3.38 1.76 1.12 0.89 0.71 3.17 4.05
F40w 3.77 2.04 1.32 0.95 0.75 0.62 3.54 3.55
F40c 3.77 2.04 1.36 1.05 0.85 0.71 3.54 3.91
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Nic Barnes
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Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
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check to make sure the exhuast system is 2' minimum, if it smaller, it will restrict like hell causing it to pull poorly higher up the revs. ideally, a 2.25' system would be nice, but they were 2' std in astras and cavaliers, so make sure it is that from the downpipe back.
give it a full service, rotar arm, dizzy cap, plugs, leads, cts, oil filter, fuel filter etc and maybe check the ecu for fault codes just incase
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Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
User status: Offline
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quote:
Originally posted by muppetsport
give it a full service, rotar arm, dizzy cap, plugs, leads, cts, oil filter, fuel filter etc and maybe check the ecu for fault codes just incase
Just what i was thinking. You don't want to start modding the engine if it's not working propperly.
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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cheers mateys  yeh will get on it.
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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most XE's we get on the dyno are down on power. its normal with age.
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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quote:
Originally posted by Dave A
most XE's we get on the dyno are down on power. its normal with age.
I dont really agree with that.
XE's last very well, ive rarely seen a XE be down on standard power, unless it was a sick engine.
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ed
Member
Registered: 10th Sep 03
User status: Offline
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So you are going to contadict what is common knowledge and fact and say that as an XE gets old it wont loose power. Good luck there pal.
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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lol even i reckon they lose 5/6 bhp easy over the years.
Say theyre 150-152 new, mine without anything should be like 145. Powercap etc etc and exhaust should have brought it to like 153/154
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Nic Barnes
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Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
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id say with a power cap and exhaust you would be seeing 175-180
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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well the exhaust has the standard manifold so not much from there.
Powercaps only adding like 9 at the most!
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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quote:
Originally posted by Vaux Lad
quote:
Originally posted by Dave A
most XE's we get on the dyno are down on power. its normal with age.
I dont really agree with that.
XE's last very well, ive rarely seen a XE be down on standard power, unless it was a sick engine.
well in fairness you dont use a dyno to test cars on a daily basis so wether you agree or not I am right when I say that engines lose power with age.
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williamsvts
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Registered: 11th Apr 06
Location: north east
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nicely said dave
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phil_sutton
Member
Registered: 8th Sep 07
Location: Nottingham
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quote:
most XE's we get on the dyno are down on power. its normal with age.
agreed, same has been seen on ours. Although muppet is right, with the right subtle mods you can see enough power to over come gravity itself.
[Edited on 09-09-2007 by phil_sutton]
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Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
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quote:
Originally posted by phil_sutton
quote:
most XE's we get on the dyno are down on power. its normal with age.
agreed, same has been seen on ours. Although muppet is right, with the right subtle mods you can see enough power to over come gravity itself.
[Edited on 09-09-2007 by phil_sutton]
i find it easier to tell people what they want to hear
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phil_sutton
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Registered: 8th Sep 07
Location: Nottingham
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lol yes makes life eaiser
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Steve X16XE
Member
Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
User status: Offline
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quote:
Originally posted by muppetsport
i find it easier to tell people what they want to hear
Don't forget about on of the ETS super charger beasts 
[Edited on 09-09-2007 by Steve X16XE]
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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quote:
Originally posted by Dave A
well in fairness you dont use a dyno to test cars on a daily basis
How do you know?
Ok, i dont but it got you thinking about assuming things didn't it? 
Indeed it'll loose power, its just some engines seem to loose more over the years than others.
[Edited on 09-09-2007 by Vaux Lad]
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