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HOLY GRAIL, 2004 WRC turbo manifold

11K views 52 replies 17 participants last post by  Turbofab  
#1 ·
The exhaust manifold, YC8969/1/006, WRC 2004 used is specific to the Focus WRC application and is quite long, reminding the one used in the RS500 special of the 80s. Long exhaust manifolds allow for a greater quality of gas flow to the turbocharger but have the inconvenience of introducing a relatively important amount of turbo lag. The Ford WRC teams took care of this downside by using the latest generation of turbo anti-lag systems (ALS) on their engine. The exhaust tubing is made out of the precious INCONEL alloy which is very light and heat resistant. Note also that ALS systems seem to be disappearing from the rallying world. Many new teams avoid using them for reliability reasons.

I'll be buying the WRC crank soon.

Rob

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#5 ·
I thought so too at first but you can see the wastegate flange on the bottom of the collector. I suppose it could be used as for a wastegate but there is so much pipe between it and the turbo that boost pressures would see a lot of hysteresis. Not ideal for a street car let alone a cutting edge WRC machine.
 
#9 ·
how would I pipe the wastegate to the FR intake???
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What do you plan to do for rad and fans?
I'm upgrading both as you would when going turbo.

i hope your also goind dry sump and properly tilting the engine back like a wrc focus. its the only way that mani works. and probably will clear the hood.
I have to use a dry sump anyway because I am going over 9000rpm and I need enough oil for the engine, holes and turbo.

From 2000 to 2005 the WRC turbo manifold was change each year just like every other part, some of the early manifold were longer and had an S bend and some manifold like mine were short with no S bend.
 
#11 ·
Some turbo input would be nice??

Does the size of the turbo mouth needs to be same as the exhaust opening???

Who offers the best deal on buying a turbo on its own and intercooler???
 
#12 ·
Funny how one small question can have several hundred correct answers.

What are your plans for the car? What are your power goals? Does it need to be street legal or meet emissions or noise standards? There are a ton of variables that will determine your answer.
 
#13 ·
Well not to mention, that looks like either custom v-band or Tial turbine inlet...impossible to tell since this is the first WRC manifold we have seen someone run.
 
#15 ·
500 is easy these days. 1000? Whole new ball game.
 
#17 ·
That manifold was designed for a car that is breathing through a mandated turbo inlet restrictor which essentially caps peak horsepower. With peak horsepower already achieved the name of the game became increasing low RPM torque as much as possible....enter the manifold you have now. You might make 500 HP out of it but there is no way you'll see 1000.

Also something to keep in mind.....that manifold, along with the turbo that Ford mated to it were considered disposable. They were designed to last as long as it took to get to the next service where replacing them wouldn't incur a penalty.....so basically one day of racing.

I'm with Turbofab. You need a new manifold with a larger collector and shorter primaries.
 
#19 ·
If it's made out of inconel...is that disposable? Thought that ish was tough as nails.
 
#18 ·
I sure hope you didnt spend a lot of money on that. While im no expert, based on what more experienced people are saying, its kind of a useless piece...

Just curious...was this a purchase based on the WRC title...or did you look into what you would need to make this work and if it would work right? seems like an impulsive, uninformed buy since you arent even sure how to hook it up or what turbo you can use...

But good luck with it!
 
#20 ·
Sure Inconel is expensive compared to other stainless steels, but it's not platinum. Several Inconel alloys are particularly good at handling thermal shock though.....especially the thermal shock that anti-lag systems place on exhaust manifolds. That's why it's used.

What I meant about disposable is that's how race teams look at hardware. The car is just a tool that's used to get a job done and it's a tool paid for by someone else's deep pockets. If the driver had ALS set to 11 and he melted the ish out of manifold or the turbo, the crew just pulled them off, scrapped them in the bin, and stuck new ones on. Pieces like that weren't made for the long haul either. They were made to last just long enough. Like an F1 engine from before money rules strangled the sport....it only had to last one race. If it blew up three feet after the finish line the team cared less.
 
#21 ·
The WRC Focus only needs 300hp for FIA rules so I want to see how far I can push this manifold.

yes its made out of Inconel.

Theres a few reason I brought this rare gem, 1 it's apart of WRC rally history and 2 is get idea from this setup and redesign it with bigger tubing.

I would be happy with 400 for the time being and go from there.
 
#22 ·
I want to put my air intake system where the camgear are.

Where would I put the blowoff valve? infront or behind the air pod or MAF??

I was told with the 3rd outlet on the manifold needs blocking its not needed its a failed atempt at emission control like most things to save this rotting planet it doesnt work and is a response to government arseholes trying to think outside their area of knowledge
it works on idle to keep emissions down but then closes again on revs but its exhaust gas carbon monoxide etc and just clogs the valves as its full of oily residue
standard focus engines have them

I was thinking to pipe that to the wastegate as well????
 
#29 ·
the FIRM is junk. the runners are too small and long.
 
#31 ·
Stolle HAD the FRIM. So he speaks from experience.

Im currently running it so im speaking from experience. And cant wait til my new mani is welded up.

Topspeed has dyno comparison charts on there website, and there are many other charts around comparing.

Im not bashing you for using it, it was a good piece when it came out, and still is for most builds. But pushing RPM and numbers your talking there are much better options out there.
 
#36 ·
I'm building this Focus for drag and hillclimb racing.
I've had the FR manifold on my NA Focus and it rev really quick so it's not junk, The reason people don't like this FR manifold is because they're worried about 1000-3000rpm and you should be looking for mid to high end power.
Nobody has push this FR manifold to its max output??
The 1200hp pro outlaw Focus has huge runners and intake manifold tank itself is big so whats the difference??

The stock rev limiter is 7000rpm and the dead end torque is 5500rpm so if you can go to 9000rpm then My dead end torque will be higher and I can have more power to play with, the lighter the parts are, the quicker the engine will rev, the quicker you'll make HP.

It's going to be ongoing project until such a time the intake and exhaust manifold can't flow anymore, then I'll go full custom when I have the money for that...LOL

I do like Top speeds 825hp Air-to-Air Intercooler but, I wish they had HP rating on their turbo????
 
#39 ·
Wow that's really interesting. I totally expected the TS manifold to annihilate the FRIM in the upper RPMs but I didn't think for a second that it would post noticeable gains below 4500. That's nuts. That also shows that FRIM runners are indeed WAY too skinny for a boosted car. It probably does very well on an N/A build though.