49 replies to this topic

[FLD]

Just put my tullet system back on whilst I tinker with the 2bular. I've found the cat substrate is loose in the pipe rattling up and down. Fortunately its not made a bid for freedom yet but I was wondering how many have had tullet cats fail like this? 1) FLD 2)

[techieboy]

My first one did, almost from delivery (as did one of my Pipers) but the second one in the swappable cat section appears to be fine.

[FLD]

My system has never worked. Went stoopidly loud from new and has just gone back on only to find the dodgy cat. Lame! 1) FLD 2) Techie

[leevx2.2]

Me mine failed big time fcuked my lambda sensor trying to make a brake for freedom lol 1) FLD 2) Techie 3) leevx2.2

[P11 COV]

Had mine for 2/3 years. No issues.

[Tail slide]

Like Techie, my first one failed putting engine in limp mode, but second one supplied along with a repackable silencer has been fine. 1) FLD 2) Techie 3) leevx2.2 4) Tailslide

[PHB1969]

Are the fails from Supercharged cars only - is it worth annotating the list with induction type? From quick look at the above, they all look like SC cars...? Do they run hotter, hence accelerate the breakdown?

[Phear]

Mine was ok when I removed it a couple of months ago.

[haggi961]

Mine has got a little bit louder since owning my Tullet.

[Sammy]

Are the fails from Supercharged cars only - is it worth annotating the list with induction type? From quick look at the above, they all look like SC cars...? Do they run hotter, hence accelerate the breakdown?

They run far too rich and then kill the cat.

[PHB1969]

Are the fails from Supercharged cars only - is it worth annotating the list with induction type? From quick look at the above, they all look like SC cars...? Do they run hotter, hence accelerate the breakdown?

They run far too rich and then kill the cat.

On that basis, a fairly unmolested NA should be ok?

Edited by Big_bazza99, 20 May 2012 - 05:33 PM.

[JG]

i wonder how my old milltek is going to fair. so far so good.

[techieboy]

They run far too rich and then kill the cat.

Errr, no. I've never managed to kill a cat, no even when my engine was over fuelling enough to give me bore wash and about 15mpg on a cruise. They've just got a sh*t substrate that isn't attached firmly enough within the casing and come loose. Then when it's off the car you can feel the substrate move backwards and forwards 5mm when you tip it one way or the other.

[FLD]

They run far too rich and then kill the cat.

Errr, no. I've never managed to kill a cat, no even when my engine was over fuelling enough to give me bore wash and about 15mpg on a cruise. They've just got a sh*t substrate that isn't attached firmly enough within the casing and come loose. Then when it's off the car you can feel the substrate move backwards and forwards 5mm when you tip it one way or the other.

I beleive its them running retarded which in turn gives a high EGT. This melts the braze on the substrate meaning it moves / cools / sets / moves etc until all the braze is gone. A staked cat wont move so you tend not to loose the braze. My tullet cat has done less than 500 miles (switched it out) and is fooked. Bag of crap system, has never done what they claimed.

[techieboy]

I beleive its them running retarded which in turn gives a high EGT.

No idea what the state of play is with my stage 3 and the blower cams but, for my original high compression stage 2, Courtenay certainly had to retard the ignition. Once I'd got the uprated rods and lower compression pistons fitted, the ignition was advanced back to it's standard timing during all of the part throttle mapping.

[Hark]

Add me to the list. SC stage 2. Lasted less than 2 yrs and 20k.

[ciderbooze]

this is a little worrying given that i have just ordered a full system to go on my soon to be sc stage 2.

[JG]

Add to that, welded brackets requiring the heat shield to be cut, and exhaust tips that don't exactly look good for very long and it seems that there are some questions to be answered.

[techieboy]

Mine (3.0" system) didn't need any heatshield cutting. Certainly not any more than the Milltek did in the first place or any of the numerous Pipers after that. Tailpipes look fine as well.

[JG]

Good to hear . (Milltek doesn't require any heatshield to be cut - least it didn't on mine)