Hi. I was just wondering what manifolds people are running? I'm going to be ordering an ETS intercooler and intake so thought I'd go with one of their exhaust manifolds, but have seen the invidia manifold which is a fair bit less, but that does make me worry id just be cheaping out. Also what inlet manifolds are people using? I saw an AMS one for nearly 1500 which seems like a mental amount of money!

Thanks

 

Stock ported exhaust manifold. Do not even consider anything else.

 

Oh really? That works for me. Undoubtedly cheaper than buying new lol what about intake?

 

Any intake will be adequate really, but going speed density is what you'll eventually want to do, both for power and drivability.

 

I actually meant inlet, as in manifold, but that does actually bring me onto another question I was wondering about. You actually commented on another thread I started and we we're talking about mods and speed density did come up, but I didn't really understand what was needed tbh. Is it a lot of hassle or seeing as I'm thinking of putting a bit of time and money into the car, is it well worth looking into?

 

In terms of intake manifold, the best option for your setup is to leave it alone lol. Actually you'd benefit more with a ported TB and IM, but I wouldn't worry about it if you aren't looking for maximum power out of a stock setup.

As for the Speed Density, I see it as a must, not because of power, but because of the smoothness in drivability and the ability of a SD setup to still keep going even when boost leaks are present, unlike the standard MAF option.

The conversion is actually pretty cheap, probably $300 max, this includes a SD air intake, 4 bar OMNI MAP sensor, an IAT sensor (optional*), and a SpoolinUP MAF to IAT harness (optional).

*This is only optional IF the UK Evos possess a fuel temperature sensor, if not, then it's a must.

The SpoolinUP harness is a tidier alternative to hacking into the stock MAF harness.

Now, another issue with the SD conversion would be if the UK Evos had a MAP sensor to begin with, if so, then all you would need to do is swap the OEM MAP sensor with the OMNI one and install everything else, get a tune, and you're good to go.

If however, the UK Evos do not contain a MAP sensor to begin with, then you will need to drill a small hole on your intake manifold and mount the MAP sensor over it, or the easier option would be to just run a vacuum line to it, then you would need to locate certain Pins on your ECU harness to mate with your MAP sensor

Is it worth it? Yes.
Is it a PITA if your Evo was configured like a JDM evo from the factory? Oh yes

I don't know much about the UK evos except the usual and the FQ versions, but hopefully they were configured like the USDM evos and save you precious time.

 

map, ets

 

Some of the ebay ones look good too.

 

Faisalm , when you say I'd benefit more from a ported tb and im, do you mean buy them or get the standard ones ported?

 

Just port your current intake manifold, but you'll need to purchase a ported OEM TB since they get ported to 65mm and need a new butterfly flap. You can send in your current once you receive the new ported TB, that should save you some money, same goes for the IM.

 

Ok, that sounds reasonable. With porting the manifold(s), does it need to be bored out to an exact size, or can I get my local metal shop who have done odd bits of work for me to just work at it for a while until they're happy with it?

 

No, just don't gasket match the inlet portion of the exhaust manifold, i.e the area that connects to the head. The flange that connects to the turbine housing should be gasket matched.

Other than that, just port and smooth until you're happy

 

Sorry to drag this out but I want to make sure I understand this. So do I need bigger gaskets or would I match it to the standard gaskets, assuming they're a tad bigger than the exhaust manifold? Also what's the deal with the inlet manifold. Is there a gasket between the tb and manifold that the manifold should be matched to or should I send it off to someone to make it 65mm like the tb? Sorry for the noobish questions but I'm afraid I am a total noob with this stuff

Thanks

 

I have the complete invidia exhaust on mine and it netted 32 whp over stock. And brought it to full boost about 500 rpm sooner. And the is with the header and everything. Cheap but it was effective.

 

Is that the turbo back system or the manifold too?