getting my breathe

mabo

Club Member
Nov 13, 2011
5,365
5,007
south wales
I've had my V6 Cougar for a few years now and am always amazed how strangled the engine is. I know there's plenty of stuff on here for how to upgrades but personally I like to take things apart and see what I find.
Based on tips here and other V6 forums I've been dabbling for a while to make it better.
But I don't want her to look modified, oh and I'm a cheapskate.

Last year I fitted an ST200 air box, a cat removal link pipe and I removed the horrible exhaust box that has the u turn in it by cutting and welding. I relocated the IMRC away from the hot spot too.

Result, Yup seems better, exhaust noisier but not too bad, certainly feels more responsive.

I bought an st200 upper inlet and throttle body last summer and planned to fit it over the winter. Seems like I've already got the bigger lower manifold.
Then just before Xmas the damn alternator failed.
So I thought if it's going to be jacked up in the garage for a while and I'm fighting round the back of the block then I might as well do the headers too.
So thanks to Lucid, second hand toyo headers bought, and after many hours crawling around I've now fitted them
I've also cleaned out the lower manifold ( I couldn't believe how much crap was in the secondary inlets )
Fitted the ST200 upper manifold and throttle body along with the necessary throttle cable and modified the old bracket to suit the new cable. The headers happily don't have the link pipe that joins to the inlet manifold so the valve linking the two has been left off and a blank plate fitted hopefully that'll keep the manifold a bit cleaner internally.
I drove her very briefly yesterday. Wow I'm impressed, now she feels like she's got a 2.5 V6 under the bonnet. Much much more responsive even on just smaller throttle openings.
Disadvantages of the set up is,
A. no cats at all now so a small problem at the MOT but that's not till September so minor issue at the moment.
B. She's too noisy. I actually think she sounds good but I don't want her to draw attention. With just a minor amount of throttle she has a lovely sharp rasp. But it's too much. Plan is to refit the main cat and see if that takes the edge of it.
C. She seemed to be revving by herself at times, not whilst driving but I pulled up to reverse into the drive and instead of dropping back to tickover she was running at about 2.5k revs, then she settled back down. Maybe the throttle spring is a bit slack, or maybe something else is causing it.

I've never really liked the gear lever, it's a bit too far away when I'm sitting comfortably. So today a I took it out of the car. I think there are a couple of types of lever but mine is the type that's a bent steel bar.
I layed it on the garage floor and drew around it, Then put the threaded part into the vice, grabbed a block of wood and my lump hammer and bent it a bit more. I was a bit afraid of it snapping so I've only added at the most an inch backwards. Refitted it and it seems better. Might do it again yet tho.

So there you go. my ramblings on a wet sunday afternoon.
 
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I also have no cats at all. I got a full stainless steel setup but I do fit my cat back for the MOT. I also find with the cat fitted it is much quieter so if you are worried about the noise then this is the way to go.
 
One day, she'll gain a full stainless system, part of the problem is I don't really know what I want. Still as you advise next job is to put the cat back in hopefully she'll be quiet enough then. New gaskets on order.
I also need to check out the water level switch because it's lying to me at the moment, oh and to see if the alternator / charging warning light works. I'm on my second alternator and I've never seen the light to warn me of impending failure.
 
Yes putting the cat back on will make hell of a difference to the noise it makes, well it does on mine anyhow, but the cat is only on for 1 day a year for the MOT. Plus my cat is knackered and rattling all over the place, as long as it gets me through the MOT then it is all good.
 
Tiger is a pretty-much standard 2.5 Duratec, though she has the Blue Flame exhaust and an ST220 airbox.

That's how I bought her.

She doesn't need the ST airbox. What she needs is her original airbox and a panel filter that flows properly. All her noise (if that's what you're after) is from the back end.
 
Tiger is a pretty-much standard 2.5 Duratec, though she has the Blue Flame exhaust and an ST220 airbox.

That's how I bought her.

She doesn't need the ST airbox. What she needs is her original airbox and a panel filter that flows properly. All her noise (if that's what you're after) is from the back end.

Do you want an original airbox Chris?
 
220 or 200?

Actually I think it's the ST200, but as with all previous-owner mods, I'm not sure. It's smaller than the ST24, but has two intakes. The product code for the filter is the ST220.

To be honest I think it's the ST200 box.

:edit: Apologies for thread-crapping, Mabo. I'm not selling anything.
 
Thank you Andy. I'm going to say sorry to Mabo again for invading his thread - I did misread what he was asking for.

But if I can replace the ST2x0 with a proper ST24, that might sort things out. Maybe.
 
Thank you Andy. I'm going to say sorry to Mabo again for invading his thread - I did misread what he was asking for.

But if I can replace the ST2x0 with a proper ST24, that might sort things out. Maybe.

No apology necessary Mako, I actually enjoy a meandering thread. If you mean My asking, I didn't ask anything.
However I do have the standard airbox I took off if you want it.
I could use the rubber connection to the wing for the STairbox, thats the missing link in my intake system !
 
No apology necessary Mako, I actually enjoy a meandering thread.

Thank you - me too.

However I do have the standard airbox I took off if you want it.

I appreciate that, but I won't do it unless I'm there with the donator and sure that we're both happy.

I could use the rubber connection to the wing for the STairbox, thats the missing link in my intake system !

That's been my problem too mate. Very hard to come by.
 
That's been my problem too mate. Very hard to come by.

I too have this problem - I'm not sure I would notice any difference if it was fitted, but for neatness' sake....
I reckon a piece of neoprene (piece of an old wetsuit sleeve or something) and some Bostik would sort it.(y)
 
Is this what you're all looking for?

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I too have this problem - I'm not sure I would notice any difference if it was fitted, but for neatness' sake....
I reckon a piece of neoprene (piece of an old wetsuit sleeve or something) and some Bostik would sort it.(y)

I presently have the standard one sitting inside the ST airbox mouth rather than around the outside, it looks fine but is more restrictive than the correct one would be but as you say ain't going to make masses of difference, nothing the ar?e accelerometer would be able to feel. I did consider some sort of lash up but not resorted to that just yet.
On the other side of the system, the gasket for the Cat turned up today. I'll have to cut off and remove the flange studs as they are shot. The bolts I have on the link pipe I'll be removing should do the trick instead.
Job for Saturday morning to refit the cat to muffle the noise a little.

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Is this what you're all looking for?

100_0312.jpg

100_0313.jpg

100_0314.jpg
Apparently not, but thanks anyway. I am after the ST version of this.