Under performing westcoast?

[Slugshead]

After reading around on here for a while i'm starting to believe my car is serioustly under performing..

Car does not seem to go above 90mph unless going downhill
Low power in the low rev range

Only mods, piper-X induction
Catback exhaust with ashley backbox (standard Backbox)

I have replaced...

Head gasket
Oil filter
Oil
timing belt
all gaskets in the cylinder head

Cleaned: injectors, lambda, inside of thottle body, tops of pistons...

Am i thinking that the performance of my car is impared in some way?

hoping to change the fuel filter on the weekend to see if this changes anything..

Just a small bit of confusion after reading about other westcoasts outperforming mine

[davidandrews5343]

I have induction and used to have cat back, now decat. My westcoast will hit 90 easy, ive never pushed it past 100 tho it would go, i get quite good acleration out of mine. Are u carrying anything heavy like tools in the boot?

[Lew_C]

a westcoast really shouldnt struggle getting past 90 mate.. hardly a slow car..
sounds more like a 1.1.. did you get the head skimmed when you did the gasket, only thing i can think of is that the head was warped. if the fuel filter was bad then usually it would be really bad on fuel and stutter/stall but still worth a go?

[Slugshead]

Originally Posted by Lew_C

a westcoast really shouldnt struggle getting past 90 mate.. hardly a slow car..
sounds more like a 1.1.. did you get the head skimmed when you did the gasket, only thing i can think of is that the head was warped. if the fuel filter was bad then usually it would be really bad on fuel and stutter/stall but still worth a go?

hmmm, I didnt get the head skimmed when i swapped it all over, put it down on a flat surface and measured all around with a feeler and all seemed well..

It does shutter when its cold and does cut out.. but only when cold..

couldnt be anything to do with the car having almost 100k and the cams being worn? tappets are making a noise aswell mind..

[Slugshead]

Originally Posted by davidandrews5343

I have induction and used to have cat back, now decat. My westcoast will hit 90 easy, ive never pushed it past 100 tho it would go, i get quite good acleration out of mine. Are u carrying anything heavy like tools in the boot?

Just the 15" sub

[smokey247]

mate my old 02 reg clio would gwt 120 and that had 75bhp (1.2) how can it struggle to hit 90???

[SaxoKez]

not running on 3 cyclyders isit? all spraks plugs okay n that?

i had west coast, 148k n did 125 only had exhaust and induction kit, so you have problems

[Lew_C]

Originally Posted by Slugshead

hmmm, I didnt get the head skimmed when i swapped it all over, put it down on a flat surface and measured all around with a feeler and all seemed well..

It does shutter when its cold and does cut out.. but only when cold..

couldnt be anything to do with the car having almost 100k and the cams being worn? tappets are making a noise aswell mind..

Saxo's are pretty tappety anyway as only the VTS had hydraulic tappets.. an engine doesnt just stop performing like that.. your cam won't really be 'worn' providing throughout its life it has had oil changed pretty regularly.

my vtr has 105k and that does not struggle but the tappets are real bad, verging on diesel terratory lol

[Lew_C]

I'd take saxo Kez's advice.. sounds like it isnt using all its cylinders, try changing the plugs, HT leads and the coil to see if that makes a difference

[davidandrews5343]

change the coil pack

[Slugshead]

Originally Posted by smokey247

mate my old 02 reg clio would gwt 120 and that had 75bhp (1.2) how can it struggle to hit 90???

Haha, thought something was up!!

[Slugshead]

Going to rule the sparkplugs out as they have only seen 7k as i was running on 3 cylinders last winter until the car warmed up in the mornings, doesnt run on 3 anymore...

how proportional to performance will the coil pack affect it?

[SaxoKez]

check spark plugs again to make sure, try ignition leads, and coilpack m8, like i said something really up, my westcoast did 125mph in 4th

try taking it to a place that has diagnostics, then they can tell you whats up with it m8

[Lew_C]

when the spark plugs were done did the electrode gaps get checked?

[Slugshead]

check spark plugs again to make sure, try ignition leads, and coilpack m8, like i said something really up, my westcoast did 125mph in 4th

125mph in 4th!? gonna have to figure one out hmmmm

when the spark plugs were done did the electrode gaps get checked?

What you mean by this bud? I done the plugs myself, out with the old in the with new and didn't think anything else of it...

[SaxoKez]

Originally Posted by Slugshead

125mph in 4th!? gonna have to figure one out hmmmm



What you mean by this bud? I done the plugs myself, out with the old in the with new and didn't think anything else of it...

yes put in 5th speed just went down, so your should do alot more then 90 bud,

u wna try spark plugs, buy a new set cheap enuff,if problem still there, u can try coil pack n ignition leads, or take it to a diagnostics, best bet tbh

[Lew_C]

Originally Posted by Slugshead

125mph in 4th!? gonna have to figure one out hmmmm



What you mean by this bud? I done the plugs myself, out with the old in the with new and didn't think anything else of it...

http://www.ehow.com/video_2326846_se...plug-gaps.html

have a look

[Stevo123]

Check CAM TIMING, I only say this because you mention it has power in low rev range (and therefor upper rev range power is low hence effecting cars top speed as high revs are needed) - this makes me think cam timing is retarded a tooth or 2. Only takes a few mins, 2x10mm bolts and 2 drill bits.

Wont be coil pack because you would not get to 90 with a duff one I would doubt
Plug gaps will not effect performance to that extent either

Also could be a collapsed cat or busted lambda sensor giving bogus readings to ecu

[Slugshead]

Originally Posted by Lew_C

http://www.ehow.com/video_2326846_se...plug-gaps.html

have a look

Ok kool, cheers for this, will have to watch the video later once im home from work, all streaming stuff is blocked in work.. lol

[DJVTR]

when i saw this thread i knew it would be you after our talk last night

cheak plugs as abouve , cheak leads and try that redex stuff