14b Install/Porting Questions..

[always_broken]

I have a 95 TSi and I am buying a 14b turbo this weekend!! Whoo! I've been wanting to upgrade a long time..Well I did some research but just to feel reassured I have some questions.

Mods:
2 1/2" downpipe back
Hard ICP
Greddy type rs recirculated
Turbo Timer
Hard intake pipe
K&N air filter
Fuel pump re-wire



Q.) Can I re-use stock water lines or use 1g stock water lines?

Q.) Can I re-use stock oil return line or 1g return line?

Q.) What sizes should I port the turbo(inlet, wastegate, exhaust) and the stock 2g o2 housing to?

 

[always_broken]

There we go, an experienced one. I'll give the copper rtv a try than. I also read up on the do it yourself oil feed line. I just got to get the ss fitted to a banjo I believe.

 

[calreef18]

I'd go with a metal gasket, I used copper rtv and it melted and burned up .

 

[sd_ff22]

always_broken,
while yes copper rtv will work, I would say just go with a stainless gasket from rre, and even if you dont go stainless they have a gasket set on thier garage sale page for $5 that includes the o2 sensor houseing gasket and a 7cm exhaust inlet gasket only in a composit material.
I know that you are in a rush to get the turbo on but take it from me...
"do it once and do it right"

 

[always_broken]

Hey sd_ff22,

You're really looking out for me, that's pretty cool of you bro. I checked out the page, and I didn't think I can find a 7cm gasket that cheap, you really helped me out... I'm glad I pm'd you, or else that post wouldn't have happened.

 

[sd_ff22]

http://www.roadraceengineering.com/garagesale.htm

don't worry about it bro! Its all about helping the next guy you know?
I just want to help with whatever I can.
anyway go about half way down that page and you'll find the gasket set. I put in a order with them on thursday and got the box on friday!! now thats fast. I just need to wait for a day when I can finish my porting!

 

[Dream On]

I've heard too many people complain about broken turbo bolts due to the 7 cm stainless gaskets expanding for me to ever use one. Copper RTV is cheaper also and works just fine, even when my turbo and manifold are glowing red.

 

[sd_ff22]

always_broken,

i finally got to do my port work!(had a duty day and was stuck on base with the awsome 20 piece carbide burr set/ plus air/ die grinders)
I will post up pictures when i get home, but I did everything I could, turbine inlet, exhaust housing outlet matched to an evo gasket, matched the o2 sensor housing to the evo gasket too. I ported around the top of the wastegate flapper so it could open to 90 degrees. did the same to the top of the o2 sensor houseing so that it would not mess with the flapper.

so yeah. it was an awsome hour and a half!!

 

[romeen]

FYI, the WGA arm doesn't have enough throw to open the flapper 90 degrees. However it's still a good idea to open up the wastegate passage of the O2 housing as the larger volume will create less pressure so that the exhaust gas is more likely to be redirected through there when the flapper opens.

Porting can be very gratifying, huh?

 

[sd_ff22]

yeah I know the actuator cant through it open all the way, but its opens it WAY more now than it did before!

 

[DSMunknown]

yeah I know the actuator cant through it open all the way, but its opens it WAY more now than it did before!

Just for your own information:



Click here and read post # 50 and 54

 

[sd_ff22]

are you aware that we're talking about 14b and not E3 16Gs?
both of those post were relating to e3 16Gs.

 

[kenamond]

Well this thread sure fell off my radar screen somehow.

DSMunknown: RE: porting books - I don't know of any. I just read a bunch online.

sd_ff22: So you left the divider intact today? Sorry I didn't get your PM until this evening. Can't wait to see pictures.

And to the other guy: get the gasket if for no other reason than to scribe marks on both the mani and turbine that MATCH UP WITH EACH OTHER. You could do it with a piece of cereal box cardboard if you're not going with a gasket, but if you plan on putting the 7cm gasket in there, there's no guarantee that the hole you cut in the cardboard will line up with the gasket. Something to think about anyway.

Someone needs to do a copper hi-temp RTV experiment: put a blob on the outside of your ex. mani. on one of the runners and another couple of dabs on the O2 housing. Then drive it for a week, pull the heat shields, and see if it still looks and feels like set-up RTV or something else that you wouldn' trust so much. The hi-temp RTV package says "up to 700*F" which is way lower than exhaust temps, so I'm still skeptical. But it sure would be nice for sealing exhaust leaks if it did hold up to the temps.

 

[Dream On]

I've used it for the manifold to turbo, turbo to o2 housing, and o2 housing to downpipe. Only the downpipe to o2 housing leaks b/c I've taken it off and on about 3 times without putting more RTV on/clean the old RTV off. Yes, mine around the turbo bubbled when I first had it on. I've had the turbo RED hot now and it's fine. Be as skeptical as you like, but I'll never pay $20 for a turbo, o2 housing, or downpipe gasket.

 

[kenamond]

I've used it for the manifold to turbo, turbo to o2 housing, and o2 housing to downpipe. Only the downpipe to o2 housing leaks b/c I've taken it off and on about 3 times without putting more RTV on/clean the old RTV off. Yes, mine around the turbo bubbled when I first had it on. I've had the turbo RED hot now and it's fine. Be as skeptical as you like, but I'll never pay $20 for a turbo, o2 housing, or downpipe gasket.

What about head/mani? Good to know!

 

[Dream On]

I didn't want to try it for the head to manifold, since the area is a lot bigger and there's more potential for leaks. I just went with a 4 layer OEM gasket from jnztuning. Only exhaust leaks I have now are from my rusted stock exhaust that's broken at about every flange throughout.