Ford Fiesta ST
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#151199 - 28/01/09 01:44 PM Re: DYNO TEST RESULTS [Re: azz0703]
Tez Offline


Registered: 03/01/09
Posts: 2509
Loc: Co, DURHAM
Just got an email from magnex exhausts, with a decat and there system should get around 10 bhp. Same from blueflame, hi flow cat and blueflame around about 10 bhp.
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Fiesta ST200, K&N Panel Filter otherwise standard for now.

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#151200 - 28/01/09 01:49 PM Re: DYNO TEST RESULTS [Re: Tez]
YellowBadge Offline
MountooningTipster

Registered: 26/08/07
Posts: 11640
Loc: here
I would go with a legal sports Cat then no later hassle with MOT's etc.
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#151201 - 28/01/09 01:59 PM Re: DYNO TEST RESULTS [Re: YellowBadge]
Tez Offline


Registered: 03/01/09
Posts: 2509
Loc: Co, DURHAM
To be honest steve would be happy with an exhaust and maybe a remap, the car is driven more by vicky than me and she has the two kids in the car, controlling the wheelspin is bad enough without going for loads more power, just trying to keep a happy medium, winters nearly gone so the RS will be my daily driver.
_________________________
Fiesta ST200, K&N Panel Filter otherwise standard for now.

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#151202 - 28/01/09 02:19 PM Re: DYNO TEST RESULTS [Re: YellowBadge]
DAVE T ST Offline
Fiesta Nutter

Registered: 15/01/06
Posts: 3556
Loc: Tipton nr. Dudley, W. Mids
Quote:

I would go with a legal sports Cat then no later hassle with MOT's etc.




Yes, spot on.

Also, I found from powertrain engineering knowledge from work (Jaguar) and from experience with my ST's that due to the positioning of the catalyst on the car (half way down the floor) the cat struggles to get hot enough to perform properly.
If the cat is cold the PCM squirts unburnt fuel into it to cause an explosion and get it hot hence the constant black soot on your tail pipe

My advice would be:

A decent Induction kit that gives a good (but not too low) cold air feed. Mount the cold air feed always on the RHS front of the vehicle not the left (there's less puddles in the middle of the road for RHD vehicles to suck water into the intake with )

A 4-2-1 manifold for road use.
This gives a much better spread of torque for road use and a vast improvement to mid range torque (something the standard ST suffers with)
The Piper 4-2-1 also comes with the flexi attatched.

A decent (Magnex, Piper etc) cat back exhaust.

Some Magnecour Leads

Also have the exhaust manifold AND catalyst up to just past number 2 HEGO heat wrapped, that'll ensure the cat gets to full operating temperature and also save fuel beleive it or not.

Finally fit an Earth strap from the cylinder head to the body (NOT the negative terminal on the battery). I mounted mine under the LHR engine lift bracket to the LHS strut top nut.
Ally is slower at conducting electricity (as we found out on the Jag XJ ally body and had to fit loads of seperate earth points) so earthing the head directly gets the dead spark from the plugs away from the head quicker.
This really does help and improves throttle response and cold start performance.

Run it on Shell or BP 95RON only

That should see you good for at least 170PS then you could think of having it re-mapped to account for the improved air-flow and to remove the 95RON limit and torque limiter from the PCM.

If you want to go higher then you will need to start changing the internals of the engine (cams and throttle bodies etc) and/or using the 2.3 bottom end as previously mentioned.

_________________________
2011 Focus 3-door Zetec 1.6 TDCi.
Previous <img src="/images/graemlins/stemo.gif" alt="" />s - 2006 Panther Black & 2007 Red. Gone and quite forgotten <img src="/images/graemlins/lol.gif" alt="" />

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#151203 - 28/01/09 03:06 PM Re: DYNO TEST RESULTS [Re: DAVE T ST]
Tez Offline


Registered: 03/01/09
Posts: 2509
Loc: Co, DURHAM
Good info on the earth, will try that. I run an earth from the battery to the EDIS module on the RS2000, cures idle hunting and misfires.
_________________________
Fiesta ST200, K&N Panel Filter otherwise standard for now.

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#151204 - 28/01/09 03:56 PM Re: DYNO TEST RESULTS [Re: Tez]
Unclebadger Offline


Registered: 04/12/08
Posts: 149
Loc: Woking, Surrey
I was going to start a thread about earthing, I was reading about the Mazda boys who do it (as Mazdas have the same duratec lump).

It seems popular to earth the throttle body (mostly but also seen other bits like the fuel rail). They seem to earth to the neg. battery terminal. They say it improves throttle responce by improving the ground (or neg. signal) because other wise it has to go through the loom as it certainly cant go through the plactic inlet manifold. They also seem to think it helps to cure the low end jerkyness when pulling away.

I was thinking of trying this but can't be bothered to muck aroung under the bonnet in this lousy weather.

Anyone tried this? Any difference?

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#151205 - 28/01/09 04:00 PM Re: DYNO TEST RESULTS [Re: DAVE T ST]
Adam08 Offline
Site Supporter

Registered: 15/10/08
Posts: 15118
Loc: Harpenden, Hertfordshire
Quote:

Finally fit an Earth strap from the cylinder head to the body (NOT the negative terminal on the battery). I mounted mine under the LHR engine lift bracket to the LHS strut top nut.
Ally is slower at conducting electricity (as we found out on the Jag XJ ally body and had to fit loads of seperate earth points) so earthing the head directly gets the dead spark from the plugs away from the head quicker.
This really does help and improves throttle response and cold start performance.





Are you able to show a picture of where it is mounted? as I have seen a post about this before but wasn't sure where it was that it had been mounted
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#151206 - 28/01/09 04:49 PM Re: DYNO TEST RESULTS [Re: Adam08]
YellowBadge Offline
MountooningTipster

Registered: 26/08/07
Posts: 11640
Loc: here
Dave T ST step forward with the answers !

if I remember and Dave will advise better, earth the engine mount to the suspension strut is another one that will help with this.

Post it seperate for Dave to see.
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#151207 - 28/01/09 05:09 PM Re: DYNO TEST RESULTS [Re: YellowBadge]
DAVE T ST Offline
Fiesta Nutter

Registered: 15/01/06
Posts: 3556
Loc: Tipton nr. Dudley, W. Mids
Answered other post.

My next one I was going to get round to was welding an earth srap to the exhaust then boltin to the body to aid the signal to the HEGOS as they have to earth through the flexi pipe up to and through the exhaust manifold gasket into an Ally head.

I bet it would be better.

You can never have enough Earths.


Edited by DAVE T ST (28/01/09 05:11 PM)
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Previous <img src="/images/graemlins/stemo.gif" alt="" />s - 2006 Panther Black & 2007 Red. Gone and quite forgotten <img src="/images/graemlins/lol.gif" alt="" />

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#151208 - 28/01/09 06:00 PM Re: DYNO TEST RESULTS [Re: DAVE T ST]
YellowBadge Offline
MountooningTipster

Registered: 26/08/07
Posts: 11640
Loc: here
good one
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#151209 - 28/01/09 10:11 PM Re: DYNO TEST RESULTS [Re: YellowBadge]
azz0703 Offline
Fiesta Addict

Registered: 19/11/08
Posts: 987
went straight over my head that did lol, i think i get what you mean, i deff wna stay with fully legal cat to be on the safe side, could i gain power from just gettin it remapped now as it is? like a custom map? or would it be a waste of money?
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08 ELECTRIC ORANGE 2,VSP, ORANGE RECARO INTERIOR, SONY UNIT, K AND N FILTER..... ANY IDEAS!?!?!

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#151210 - 28/01/09 10:17 PM Re: DYNO TEST RESULTS [Re: azz0703]
YellowBadge Offline
MountooningTipster

Registered: 26/08/07
Posts: 11640
Loc: here
I wouldn't doing any mapping until you have finished all your mods, then either see how well you car goes and then go for DS/live mapping/custom etc to squeeze the best out of all your mods.
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MR200 Stage 3 200PS
Evans Halshaw
Mountune Pro

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#151211 - 29/01/09 08:13 AM Re: DYNO TEST RESULTS [Re: YellowBadge]
azz0703 Offline
Fiesta Addict

Registered: 19/11/08
Posts: 987
ok cheers for advice, manifold then when i have 400 to waste lol
_________________________
08 ELECTRIC ORANGE 2,VSP, ORANGE RECARO INTERIOR, SONY UNIT, K AND N FILTER..... ANY IDEAS!?!?!

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#151212 - 29/01/09 09:48 AM Re: DYNO TEST RESULTS [Re: azz0703]
DAVE T ST Offline
Fiesta Nutter

Registered: 15/01/06
Posts: 3556
Loc: Tipton nr. Dudley, W. Mids
Change the manifold last.

Fit the K&N then the cat back exhaust then the manifold so that you feel the benefit of each bit of money you've spent as you do it.
_________________________
2011 Focus 3-door Zetec 1.6 TDCi.
Previous <img src="/images/graemlins/stemo.gif" alt="" />s - 2006 Panther Black & 2007 Red. Gone and quite forgotten <img src="/images/graemlins/lol.gif" alt="" />

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#151213 - 29/01/09 11:11 AM Re: DYNO TEST RESULTS [Re: DAVE T ST]
azz0703 Offline
Fiesta Addict

Registered: 19/11/08
Posts: 987
ive already got k and n mate, didnt realy wnt to change the note of my exhaust im not realy a boy racer in that respect. if i can find a good resonated one then id go for thet, would i need to cut any of the original parts of my exhaust to fit a cat back?
_________________________
08 ELECTRIC ORANGE 2,VSP, ORANGE RECARO INTERIOR, SONY UNIT, K AND N FILTER..... ANY IDEAS!?!?!

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