good port.bad port

[arash15]

heres the turbine housing.what do you think?

 

[oldman]

Looks great. Did it come ported like that? I'm shock that they did that much work on top of the wastegate entrance. Did you also enlarge the area behind the flapper so it could open up more?

 

[arash15]

Looks great. Did it come ported like that? I'm shock that they did that much work on top of the wastegate entrance. Did you also enlarge the area behind the flapper so it could open up more?

hell no it didnt come like that. i did all of it. the wastegate has no problem opening and it even goes a little past 90 degrees

 

[Stapl3]

Remember which way the exhaust gases are going. Runners are fine if too big, I actually suggest going slighly larger than the head.

The turbo opening must match the gasket (turbo really) or be smaller.

Best of luck.

 

[arash15]

Remember which way the exhaust gases are going.

I don't get it?

 

[siceclipse]

down?





















am i right?
am i right?!

 

[oldman]

I don't get it?

He's saying air flows from the head to the manifold so it's ok for the manifold ports to be larger than the exhaust ports on the head but not the other way around, common sense really.

 

[arash15]

He's saying air flows from the head to the manifold so it's ok for the manifold ports to be larger than the exhaust ports on the head but not the other way around, common sense really.

ahhh i get it. i wasn't able to connect the dots at the moment. sorry but there's still part 3 to this porting saga! the 02 housing!!!!!I'll let you know once i start on it!

 

[WatchItExplode]

Remember which way the exhaust gases are going. Runners are fine if too big, I actually suggest going slighly larger than the head.

The turbo opening must match the gasket (turbo really) or be smaller.

Best of luck.

Theoretically, there is a benefit to the manifold runners being wider than the ports in the head. It creates a ridge that discourages the exhaust pulses from flowing backwards, or something of that nature.

 

[arash15]

Theoretically, there is a benefit to the manifold runners being wider than the ports in the head. It creates a ridge that discourages the exhaust pulses from flowing backwards, or something of that nature.

thats mainly the job of the divider in the center of the collector area. it makes the exhaust go into the turbine housing, instead of it bouncing off the collector and heading bad towards the head.

 

[Stapl3]

Theoretically, there is a benefit to the manifold runners being wider than the ports in the head. It creates a ridge that discourages the exhaust pulses from flowing backwards, or something of that nature.

Bingo.

 

[Stapl3]

thats mainly the job of the divider in the center of the collector area. it makes the exhaust go into the turbine housing, instead of it bouncing off the collector and heading bad towards the head.

The divider is an attempt to somewhat seperate the pulses of exhaust the motor puts out. It has nothing to do with pulses flowing back into the head.

 

[daren_p]

Looks great. Did it come ported like that? I'm shock that they did that much work on top of the wastegate entrance. Did you also enlarge the area behind the flapper so it could open up more?

I think alot of the time this isn't needed. When I looked at my evoIII the wg flapper could only open about 3/4's of they way(from 90 deg), so I was going to remove some of the material like you said until I pressure tested the wg actuator and found that it only opened about half way max & didn't come close to hitting the turbine housing.

 

[oldman]

I think alot of the time this isn't needed. When I looked at my evoIII the wg flapper could only open about 3/4's of they way(from 90 deg), so I was going to remove some of the material like you said until I pressure tested the wg actuator and found that it only opened about half way max & didn't come close to hitting the turbine housing.

You're right. I have posted that couple of times and found out it's much easier to just tell people to port it, easier than trying to explain to people, who has very little concept of how a turbo system work, why they might not need to because it goes against what is said on the vfaq.

BTW my GT12 actuator has more travel than my old 16g so I think different actuators produces different results.

 

[arash15]

You're right. I have posted that couple of times and found out it's much easier to just tell people to port it, easier than trying to explain to people, who has very little concept of how a turbo system work, why they might not need to because it goes against what is said on the vfaq.

BTW my GT12 actuator has more travel than my old 16g so I think different actuators produces different results.

yeup! the 16g doesnt even come close to hitting anything. BUT now for this damn o2 sensor!! its not budging! any tips? i used tons of wd-40 and a 7/8 wrench but i dont want to strip the sensor. i want to port that o2 housing today!!!!!!!!!!!!!!!!!!!!!!!!!!help me.

 

[oldman]

yeup! the 16g doesnt even come close to hitting anything. BUT now for this damn o2 sensor!! its not budging! any tips? i used tons of wd-40 and a 7/8 wrench but i dont want to strip the sensor. i want to port that o2 housing today!!!!!!!!!!!!!!!!!!!!!!!!!!help me.

Yes that could be a tough one, take it to a machine shop if you can get it off.

 

[Stapl3]

Been there, done that.

PB Blaster. Wait 5 minutes. Big vice grip. Get it on there as tight as humanly possible. Hammer.

Best of luck.

 

[redboosted97]

Ive never had a problem getting the 02 sensor off...all you need is a good 02 sensor socket and a breaker bar and it comes off with no problem.

 

[daren_p]

Hmm I've never had a problem with mine, put it in the vise, used a wrench and pulled like hell . I would think the proper O2 socket and a breaker bar would give you the best chance of removing it without stripping it. What about heating it up? Just remember to put antiseize on it when you put it back together for next time

 

[oldman]

arash15 : Congrats on the FP2.

 

[arash15]

arash15 : Congrats on the FP2.

wow! howd you know. . you found out before i did. i didnt think i was going to win those for the price i set.

 

[oldman]

wow! howd you know. . you found out before i did. i didnt think i was going to win those for the price i set.

Let's just said you're lucky my head won't be here for two more weeks so I can afford to wait. Next time, don't get into a pissing contest with the guy and just bid at the last minute. You probably could have saved another $20.

BTW In case if you're wondering, I wasn't the one biding against you.

 

[arash15]

Let's just said you're lucky my head won't be here for two more weeks so I can afford to wait. Next time, don't get into a pissing contest with the guy and just bid at the last minute. You probably could have saved another $20.

BTW In case if you're wondering, I wasn't the one biding against you.

you think that the fp2's and the pte 50 trim are gonna be a good setup, or is thier better. i wasnt expecting to be the winner, i was just messing around bidding becasue the price i bout it for was $100 less. and i didnt think i could win it for this price.

 

[oldman]

you think that the fp2's and the pte 50 trim are gonna be a good setup, or is thier better. i wasnt expecting to be the winner, i was just messing around bidding becasue the price i bout it for was $100 less. and i didnt think i could win it for this price.

FP2 would be perfect for you, the FP3 is designed for a stroker engine. BTW it was only $60 off their regular selling price of $429. Good get.

Wait, I mean FP2 is to aggressive for you, you should give them up to me.

 

[arash15]

FP2 would be perfect for you, the FP3 is designed for a stroker engine. BTW it was only $60 off their regular selling price of $429. Good get.

Wait, I mean FP2 is to aggressive for you, you should give them up to me.

tomayto, tomato its all the same. ! well you know i heard the cams go for $429, so if your trying to pick up a set....just let me know.