damn dude your inlet porting puts mine to shame... I got bored after about 20 minutes and put it back together ... Almost makes me want to take it apart again.
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Scott
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Okay done with my turbo porting for the day, dropped the mani so thats my goal for tomorrow, the material is alot harder than that of the turbo, so its gonna be a much longer day, but im happy as how my turbo turned out, hopefully it will get rid of my creep, ill keep you guys posted and the turbo again is a hell of alot shinier and smoother than it looks in the pictures, its mirrored and smooth as anything just i guess the flash screwed that up, OLDMAN another rating please...
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2002 BMW M3
1991 Eagle Talon TSi AWD
A+ for the inlet, I couldn't have done it better myself. In fact, I'm using this picture from now on instead of the other one. Isn't porting addictive? What you have done today not only should cure your creep, it will also improve spool up time. Paper trace the flange including the bolt holes, cut it out, and past it on the manifold collector so you can get a perfect match. Once again, you have made me proud.
thanks so much man I really appreciate that, and yes porting is addicting, i now wish that I woulda saved my 50 bucks from slowboy and done it myself, I cant wait to get with my exhaust manifold, which has been untouched and still holds the 6cm hole, instead of the 7 that it needed, I have found so many places where the air has just been hitting barriers instead of smoothly flowing throughout my system, again ill post pictures of my manifold tomorrow, and ultimately whether or not this solved the creep
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2002 BMW M3
1991 Eagle Talon TSi AWD
alright think im done with the manifold but guess ill be sure after OLDMAN gives me my rating, lol, i didnt notch out the center divider as after doing some research i found out that directs air and serves a valuable role in the manifold design, it is a perfect match to that of my inlet, so I should be flowing much more smoothly between all this, didnt touch the runners as i was going to see what you guys thought i should to do them if anything, I dont see any purpose since my head isn't ported at all...ported not only the ring but also ported it to a full 7 centimeteres, and i used the paper trace method to match up the inlet and the mani
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2002 BMW M3
1991 Eagle Talon TSi AWD
i didnt notch out the center divider as after doing some research i found out that directs air and serves a valuable role in the manifold design
You are absolutely correct on that.
B+ for it not being round, must be your paper cutting skills. Now go bolt them on and don't post back unless it works.
I did enlarge the runners by about 2mm and 2in deep but you're right without a ported head, it's not necessary. I did it because I wanted to port everything. As long as you follow the rule of going from small to big you'll be fine.
either my paper cutting skills, or my fingers not working from extreme vibrations for like 5 hours of porting the last two days cant handle any more porting for a while, but thanks for guiding me through the process old man, and my last post will be in a couple days when I actually see if this cures my creep...
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2002 BMW M3
1991 Eagle Talon TSi AWD
Just beause with no o2 housing on the flapper open parallel doesnt mean it will once you bolt the o2 housing back on. Just something for you to check out while you have everythign off.
Glad i checked this, all the clearance I had made by porting behind the flapper got closed back up when i mated it up to the o2 eliminator, so i had to do a little bit of porting to that too, to mirror everything that i had done to the wastegate side and so the door would open parallel, thanks 90blacktsiawd, and i rounded off my manifold so its more circular
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2002 BMW M3
1991 Eagle Talon TSi AWD
damn dude your inlet porting puts mine to shame... I got bored after about 20 minutes and put it back together ... Almost makes me want to take it apart again.
You had your chances in the other thread, you're the only person I lost to the EXTERNAL side so far.
Oh yeah and i dont wanna resort to going to a machine shop to get these damned bolts out of the inlet, so far ive tried drilling, even with titanium bits wont budge, they just break or melt, then tried welding a nut to them and unscrewing it off, but even when its red hot it wont work, anybody got any ideas, this sucks
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2002 BMW M3
1991 Eagle Talon TSi AWD
I tried drilling out a broken bolt in a turbine housing once. Gave up after about 5 mintues of drilling and brought it to a machine shop. Cost me 20$ and only took 30 minutes, well worth avoiding the headache of doing myself.
Oh yeah and i dont wanna resort to going to a machine shop to get these damned bolts out of the inlet, so far ive tried drilling, even with titanium bits wont budge, they just break or melt, then tried welding a nut to them and unscrewing it off, but even when its red hot it wont work, anybody got any ideas, this sucks
Carbide and cobalt bits are both harder than titanium but I would just take it to a machine shop like LessIsMore suggested, turbo bolts are grade8 I believe.
Glad i checked this, all the clearance I had made by porting behind the flapper got closed back up when i mated it up to the o2 eliminator, so i had to do a little bit of porting to that too, to mirror everything that i had done to the wastegate side and so the door would open parallel, thanks 90blacktsiawd, and i rounded off my manifold so its more circular
Not a problem. I just had the same issue myself and i never thought of that before hand either.
cobalt bits rock. when i broke off a turbo bolt i cut it flush with the turbo, drilled the center 3/4 through then center punched it out. A local buddy of mine had the same trouble and did this and it worked for him to
Oldman: Im LOVING the external setup too it has a much cleaner and quieter sound then the dump I had
is there a write up like this? if not someone who's bored should do one with the info from this thread *cough*oldman*cough*
I agreed that this is one of the better ones I have done, Chadillac2000 did a great job on updating with pics. The only thing missing is a picture of the inlet before it was ported. I thought about recommending this thread to be turn into a tech article but I don't know if it would be appropriate since I'm so involved, plus we don't even know if it works yet. I do agreed that this thread could be very helpful in the future.
if this cures my creep id be happy to put all my pictures into a writeup, by the way just dropped my turbo off at a machine shop and they said it wont be til tuesday but they will get them both off, and shouldnt be more than 20 bucks, and they can rethread them if needed, so thats taken care of, also today when i got home from the machine shop my FIC 650's and 5 quarts of royal purple 10w30 were sittin on my front porch, but i think im going to install the turbo and everything back before installing the injectors so I can see how this controls my boost before going up to 20 psi or whatever i decide too, running a Hahn FMIC, 650's, 190, and a safc, how much could i run on this baby all tuned out, and how much for race gas, I am about to go to a local shop and hook my car up to a wideband as i get it tuned, and i was just wondering what i could turn it up to with pump and race gas, but here are the injectors...
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2002 BMW M3
1991 Eagle Talon TSi AWD
Yea, I dont drive it .. My boost creep has gone away, the thing pulls like a raped ape and holds rock steady at 20PSI. I plan to build a shroud "around" and "inbetween" A/C core and my FMIC, so that air that goes through the FMIC, will have no choice but to continue through the a/c core and radiator. I will also try some water wetter and if room allows putting my stock a/c fan back in.
WHEN YOU INSTALL THOSE INJECTORS: be sure to remove the stock O-rings... I was unaware I needed to do that the first time I installed mine
not yet, again im not even gettin back the housing with the removed bolts back until tuesday, and then wont get everything on til tuesday night but ill know by wednesday hope you guys can hold on that long, lol
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2002 BMW M3
1991 Eagle Talon TSi AWD
not yet, again im not even gettin back the housing with the removed bolts back until tuesday, and then wont get everything on til tuesday night but ill know by wednesday hope you guys can hold on that long, lol
Got to stop doing boost creep threads, not good for my health.
I have a similar problem. I have an evo III 16g, sbr cast mani w/ 38mm tial, and i'm getting 25+ psi of boost creep with my b/c set at like 15. It creeps to 25+ by 4000 rpms..and i have to shift. I just finished building the motor to produce all the power from 3500-8500 rpm. The only conclusion i can come to is that it is because of my stock o2 housing. Any ideas?
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Hammer_Gaidin
95 GST, 93 TSI AWD, 90 Talon N/T
I have a similar problem. I have an evo III 16g, sbr cast mani w/ 38mm tial, and i'm getting 25+ psi of boost creep with my b/c set at like 15. It creeps to 25+ by 4000 rpms..and i have to shift. I just finished building the motor to produce all the power from 3500-8500 rpm. The only conclusion i can come to is that it is because of my stock o2 housing. Any ideas?
If your waste gate is mounted on the O2 housing it won't work. The flow is still limited by the waste gate passage on the turbo exhaust housing. You can either port the turbine exhaust housing waste gate passage, or mount your external on the exhaust manifold.
... Almost makes me want to take it apart again.
Isn't porting addictive? 
What you have done today not only should cure your creep, it will also improve spool up time. Paper trace the flange including the bolt holes, cut it out, and past it on the manifold collector so you can get a perfect match. Once again, you have made me proud. 
Now go bolt them on and don't post back unless it works. 
