Ported stock manifold and turbine housing

[Sourskittle]

Did you smooth things out since the photos or did you leave it that rough?

Left it rough. Polishing the exhaust side is a waste of time. I personally would never mod the intake ports of a modern engine, where things like that matter ( and sometimes, polishing intake ports actually hurt them ). But its really all too much science to me. When you get the manifold off, its obvious the manifold ports are smaller than the head ports and they don't match properly. I simply correct that, add volume, and widen the path all the way through.

After a bit of driving, the exhaust will coat the manifold inside anyway, and you won't even be able to tell it was ported other than size. It will all look black.

 

[Sourskittle]

I can also GUARANTEE this is done to ATP's 12.40 car. Those guys are too smart not to.

 

[re-rx7]

Porting the WG hole is also gd way to control boost creep with larger setups. Im certain as well ATP did this.

 

[RAAMaudio]

Some of this is really easy to do, highly recommened, some far more difficult, time consuming, not possibly unless doing so in stages as building parts but doing everything you can will make a difference


I have done extensive porting on smaller turbos, inlet and into the scroll removing casting lines, etc...then a very good WG port where I spent most of the effort and made more power, smoother powerband, better boost control, well worth it!

I would work this little turbo over really well but I am going to a bigger turbo as soon as I can decide on which one so not taking the time to do it.

I ported the heck out of the stock manifold a few weeks back, it needed it badly.

Make the ports being feed larger than the ports feeding them and prevent reversion, does not have to be massive but it makes much easier than trying to match them perfectly, far easier.

I also port the DP intrance and any welds, etc, inside I can get to, match up the flow into the next section of piping and if I build an exhaust I very carefully line up the tubing but also bevel the inlet of each section a little.

Intake side, inlet tube to TB, ported it as well, it had some rather abrupt edges inside.

Ported the turbo outlet pipe I built as well as inlet to IC, etc...basically I port everything I can possibly do and it adds up rather nicely, costs very little, does take quite a bit of time but worth it.

Great job Sour, keep it up

 

[Sourskittle]

Rick, you take the intake manifold off? The chevy cruze guys have a nasty bump right at the end of the intake runner toward the cylinder head. They say its for emissions or something, but its obviously there for robbing power.

Anyway, if you ported the intake manifold or have pics of it, I'd love to see or hear about it.

 

[RAAMaudio]

For some reason the thread I have here no longer has the pics, I pasted a link to another thread and it will not load and not all the pics show there either, what is going on???

Some of the pics are there, email me for a link and I will get you there or email you the pics if needed

 

[RAAMaudio]

In a few weeks I am going to sell my very well ported manifold as going to an EFR turbo and custom setup, somebody is going to get a killer deal on a manifold I put a great deal of time into

 

[ryst]

I can also GUARANTEE this is done to ATP's 12.40 car. Those guys are too smart not to.

ATP is running a GTX turbo...

 

[RAAMaudio]

Of course, the GT25 could not make nearly enough power but the GTX has no bottom end power that you really need for a street driven car......I am going to the EFR as it is the best solution available I can find.

 

[Sekred]

In a few weeks I am going to sell my very well ported manifold as going to an EFR turbo and custom setup, somebody is going to get a killer deal on a manifold I put a great deal of time into

Hi Rick

I am interested in the exhaust manifold when you sell, I have sent you a PM.

 

[Sourskittle]

ATP is running a GTX turbo...

ATP GT and GTx turbo kits use the stock exhaust manifold. Meaning I promise they ported theirs too.

 

[RAAMaudio]

I sure would if I was in the business of building turbos and saw this manifold!

I took mine off out of curiosity and and there was no way I was going to put it back on not ported!

Many hours later, done, back on.....now I may sell it as have a lead on a really great manifold for a direct fitment on the EFR turbo I am going to order.

 

[RAAMaudio]

I went for a smoother port job, 10 or so hours just on the manifold. Not sure it will make a big difference but I am a bit anal when it comes to such things. . I have had shoulder, back, knee, etc...injuries, this kind of work leaves me jacked up for a few days, I am supposedly disabled but to busy having fun to claim it....

Actually smoother than it looks, lighting, etc....making it look less so.

 

[ryst]

ATP GT and GTx turbo kits use the stock exhaust manifold. Meaning I promise they ported theirs too.

Ahh ok, makes sense.

Did you notice faster spooling with the ported manifold?

 

[RAAMaudio]

It would be hard to notice faster spooling since it already spools to fast and dies off at the top end, turbo is just to little. Though it would most likely spool faster I would be hoping for a bit more mid and top end power, flow just a bit more air....

 

[Sourskittle]

I got banned for sharing my take on "non-supporting vendor" topics from the other fiesta forum, so I'm kind of touchy about sharing things that are not dyno proven by a NASA rocket scientist with engine calibrator 2000, model number JX-16-42A10 with certification # 27845. So things that can be left to "speculation" or "can you tell", are touchy with me.

But... My personal opinion, not based on bible or scientific fact is that... (And i've been driving it since Saturday night, with a 1/2 tank of gas drive "just because" on Sunday)

#1 the car is crazy crazy happier driving around with the AC on. I'm going going to give my opinion why, as I'm not going to argue with anyone. But it is... So much smoother.

#2 My current state of tune (no more info will be given) is extremely aggressive. I've found that i no longer have to dis-engauge the stability control EVERY SINGLE TIME I GET IN THE CAR to get it to move at the rate I want it to. Part throttle acceleration with esc on is AWESOME. Less labored is a good way go put it I think. With the ESC off , its an animal. It tries to make you good fast ALL THE TIME.

#3 I def pulls cleaner to redline and the ecu is adding in more timing than ever before with the same tune.

#4 spool up was not an issue before with my mods the end on that.

#5 Fuel mileage has increased. I never reflashed the tune to reset it from before ( which changes the mpg average ). I do understand that conditions greating effect this mpg ave, but it had climbed 1.5mpg over what it was. Take that for what it is. Again. I'm just sharing, not arguing.

#6 just in general. There is a "well worth while" gain that you can feel at every RPM and at every load, and in ever throttle situation.

#7 it did not change the boost number the car runs ( i did not expect it to since its so super-controlled ).

That is all info for you guys to take for what it is. I'm not selling you on doing this mod. I'm not trying to feed you anything, and I will not be drawn into an argument over any of it. Hope you guys use this info and pictures to make the choice for yourself as to weigher this mod is for you or not.

 

[Sourskittle]

Also. Rick. Amazing work man. I did not have time on my side. I couldn't have my car down for more than 2 days but either way, it was taking its toll on me with the grinder. I started questioning everything, lol. "Am I going to far". "Is that going to be too thin". Stuff like that, lol. So I'm def impressed

Yea... 6 hours with a grinder and metal flying... Not for the faint of heart if you wear kakis to work everyday.... You may want to pay someone that wears blue-jeans to work everyday to do it, lol.

I would say I'm will to do the port work if anyone is interested... But then... I'd be selling something, lol.

 

[Sourskittle]

God... Proof reading powns me. Sorry for the spelling/ grammar errors. I'm at work, lol.

 

[RAAMaudio]

WOW, I knew it was a good thing, did not expect that much with a stock little turbo but you did both and I know there is gain doing the turbo, very COOL

I was very careful about wall thickness, taking off my gloves and test feeling it, I am quite good at judging things by site and feel for some reason, I took off as much as I could to make for a cleaner path, less angle, etc.......

Pictures do not show just how bad this manifold is inside, looks great outside but they really cheapened up internally, it could be cast much much better. OR, they have the resources and at their cost not that much, extrude hone them at the factory!

I am tempted to pull the turbo back off and port it now.....

BUT, my main concern it popping the turbo while living on the road, it is quite stressed making full power, the mods would help of course but not sure I want to trust it. That is the main reason I want a bigger turbo, more reliability and more top end power being next in line but not giving up to much bottom end.

Thanks for sharing, I believe it will do what you say

Rick

 

[CanadianST]

I went for a smoother port job, 10 or so hours just on the manifold. Not sure it will make a big difference but I am a bit anal when it comes to such things. . I have had shoulder, back, knee, etc...injuries, this kind of work leaves me jacked up for a few days, I am supposedly disabled but to busy having fun to claim it....

Actually smoother than it looks, lighting, etc....making it look less so.

Wow very nice! how much did you enlarge the ports or were you just smoothing things out? I'd also be interested in this if you ever decide to sell it