Another F430 manifold quandary!!

[Russell996]

M

C. Grimsley said:

Very interesting topic, we have a 430 scud and as I have read these manifolds on this particular car doesn't have the cat in the manifolds, is this correct?

I also have the ticking noise when first started (blowing manifolds) and wondered am I in the same boat regards the replacement manifolds?

I don't mind replacing the manifolds if that's what's what but seem to be getting conflicting advise regards the cats etc, some people saying these can be ingested by the engine?

Many thanks, Carl

There are no pre-cats in the Scud manifold. I had a ticking on my 16M at cold start, it was a loose/brocken stud.

[dvb247]

There are several indictors, cold start noise, fibre being push out of sensor holes, and discolouration of the OEM manifold heat shield, the ONLY way to be sure is to remove them, grind of the heat shield and physically look for cracks, people have mentioned smoke test but I haven't come across anyone willing to do this job or guarantee that they are okay or not following the smoke test, potentially as soon as you drive away having been passed your manifolds could crack, it's a known weakness, they will fail at some point and for me I didn't want to be forced into purchasing a new engine, peace of mine I now have is worth the cost.

steelej said:

Why are fibres coming out the sensor holes a indicator of failure? I have fibres at my sensor holes in both of my manifolds but I think they've always been like that although I can't be sure.

Mine are MKII and I have capristo brackets.

John.

[C. Grimsley]

Russell996 said:

There are no pre-cats in the Scud manifold. I had a ticking on my 16M at cold start, it was a loose/brocken stud.

Thanks for the reply, it must be getting worse now as it put the engine light on the other day and was a mixture related code, I feel the oxygen sensors are picking up on the leak and flagging the codes, will strip it down towards the end of the week and see what we have.

Thanks again, Carl

[theRossatron]

mwstewart said:

Ahh, he's currently making a set of 100 cel HJS cat sections for my car. Very good fabricator.

I just noticed Niall had posted up some pictures of his 430 manifolds if anyone is interested:

https://www.facebook.com/originfab/posts/817431598...

they look fantastic.

Edited by theRossatron on Monday 29th June 11:27

[mwstewart]

In my experience the insulation under the outer heat shield breaks down and can be observed in powder form regardless of whether the manifold is cracked or not, in fact both my Mk2 manifolds looked the same in that respect; one had failed, and one hadn't.

Just replace the stock crap with aftermarket and forget about it

[yewcheck]

Anybody have any thoughts on the paramount make??

[steelej]

theRossatron said:

I just noticed Niall had posted up some pictures of his 430 manifolds if anyone is interested:

https://www.facebook.com/originfab/posts/817431598...

they look fantastic.

Edited by theRossatron on Monday 29th June 11:27

I've decided to just bit the bullet and get rid of these ticking timebomb manifolds, I tried to contact Niall yesterday but couldn't get him, just went ahead and ordered the AP manifolds as Vivid had a bit of a sale going on over on Ferrari chat. Would have liked to use someone local but it was a bit of an unknown at this point.

John.

[f1ten]

can anyone confirm what the total fitted cost all in will be for doing these manifolds?
including the zircotec coating?

[mwstewart]

I use http://www.camcoat.com/ for the coating. Zircotec are overpriced IMO.

I got a triple layer external coating for £320.

[dvb247]

I'm going to start a new topic, but this thread is fairly active so I thought I'd update you all here first with my AP Racing manifolds story so far.

A cautionary tail !!
I've just come back from a UK Ferrari Owners Club, Oulton Park track day, lots of Ferrari's as you'd imagine, race/track/road cars all in attendance, yet who had the loudest exhaust, yep, me!! black flagged within 10 mins.

If you buy AP Racing manifolds you WILL find they're way to loud for track days, I got a reading today of 107.5db on track, the limit was 92db, my iPhone videos bring home the difference to all other Ferrari's out there and now I'm at a loss as to what to do to sort it out.

I've been told all decat manifolds sound the same, LOUD!!!, is this the case?? if I bought a Capristo would that stop me going on all UK track days with the standard UK wide 105db static limit?? this seems an utterly ridiculous issue to be having and some advice is required from any and all in the know?? I know several owners who are going down the AP Racing exhaust route without the knowledge they need so I hope this thread can help owners make the right decision for them.

I am going to have a few choice words with Vivid Racing in the coming days, I'll let everyone know what they say,

MY NEXT QUESTION IS, WHAT CAN I DO TO REDUCE THE NOISE? WHY IS MY CAR NOW LOUDER THAN LEGITIMATE FERRARI RACE CARS, LET ALONE EVERY SINGLE FERRARI MODEL ON TRACK TODAY?? IF NO AWSWER THEN MY ADVICE TO ALL IS STAY WITH OEM STOCK MKII'S, IT'S REALLY NOT WORTH USING ANY AFTERMARKET REPLACEMENT, YOU'LL FIND MINE ON EBAY AS SOON AS I HAVE THE MONEY TO GET RID OF THEM!!!!!!!!

[mwstewart]

Yes, regardless of exhaust brand th3 F430 is much louder without the pre-cats in place.

The only thing I can think of is if you pipe up the exhaust vales directly to the inlet manifold so they are closed all the time the engine is running. You'd have to stomach the reduced performance though.

[Durzel]

Depends how much you care about trackdays doesn't it? If you're never going to do them then it's a non-issue. I'd rather have Capristos and not have to worry about cracks, if I was forced to choose.

[Russell996]

dvb247 said:

If you buy AP Racing manifolds you WILL find they're way to loud for track days, I got a reading today of 107.5db on track, the limit was 92db, my iPhone videos bring home the difference to all other Ferrari's out there and now I'm at a loss as to what to do to sort it out.

Is a stock F430 able to meet a 92db limit? (Is that the correct figure?)
I have a complete Capristo system on my 16M for the road and an ffcorse track day muffler for track days - but even that is 102db while the Capristo is simply offensive.

Edited by Russell996 on Wednesday 22 July 00:27

[f1ten]

interesting so basically there is no solution in terms of like for like replacement other than oem2. I thought the life expectancy of oem2 wasn't great either?

[Durzel]

Mk1 and Mk2 both have the same inherent flaw in the design. Mk2 is thicker I believe but does not alter the (flawed) mounting system in any way.

On a long enough timeline Mk2 will fail in exactly the same way with the same risks as Mk1. Decent warranty cover is imo a must.

Porsche are no better with their chocolate engines bore scoring, but like Ferrari wouldn't dare actually acknowledge a manufacturing defect, while the dealers essentially do the whole "you didn't hear it from me but" dance..

[f1ten]

mark 2 was an official fit to 08 reg models?

[Lee-0r5hq]

I have just fitted the capristo bracket.

If you don't want the car loud you could fit one of the remote valve controllers and run it closed, wouldn't help performance. You can also modify the valves to be only partially open.

I have a brand new set of capristo manifolds that Im not going to be fitting if anyones interested. Also I will be taking off a set of used OEM mk2 manifolds with under 3k miles on them.

[Durzel]

f1ten said:

mark 2 was an official fit to 08 reg models?

2008 on, but not all 08 plates will necessarily have them.

[Lee-0r5hq]

Durzel said:

f1ten said:

mark 2 was an official fit to 08 reg models?

2008 on, but not all 08 plates will necessarily have them.

My March 08 had manifolds replaced at HR Owen. Not sure whether the failed manifolds were mark 1 or mark 2

[Lee-0r5hq]

so I forgot my password and reset it now my username has changed