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14b useless w/out MBC?

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always_broken

15+ Year Contributor
468
1
Nov 14, 2006
werx, Utah
I just installed the 14b.

2 1/2" tbe
hard icp
greddy rs bov (vented, yes I know)
Alum intake
k&n air filter
1g tb
datalogger

I haven't installed the boost gauge, fuel pump, or safc yet. But I hooked the vacuum lines to the bcs. So I guess I'm running 12-13 lbs. Anyway, it feels alright, was expecting more out of it. Especially since I ported the mani, o2 housing, and turbo inlet.


Is this turbo meant to be at 17 psi to get the pull like everyone is bragging about?
 
I got all that, and it's going on tomorrow. But on the way home from work I did a pull and it just hit me that it doesn't pull.

So is this meant to be at high boost to get the potential out?
 
1. Stop venting, probably one of the reasons why it feels slow.

2. Stop guessing and wait for the boost gauge, for all we know, you could be over boosting causing knock and pulled timing, boost gauge should always be one of the first mods.

3. Perform a thorough boost leak test.
 
Why wouldn't you recirculate? It just doesn't make any sense to me that someone like you who has spent so much time and effort porting the turbo would turn around and negate all that and more by drowning your motor with fuel in between shifts, not to mention you're losing the rush of air directed at the compressor wheel which will help greatly with spool up when you get back on the throttle.
 
Aw you remember.

It's not that I want to, I have a fmic and 1g bov sitting in my trunk. But the muffler shop is gonna charge 2-300 bucks for the piping and weld.

So I'm stuck with the RS until I can find a cheaper route.

If all fails, I'll either weld a piece on the RS or spend the money to weld the 1g bov on the shitty piping I have now.
 
Hmm.. might consider that ^.

I'm gonna check out Lowes to see if they have a big enough fitting that will screw into the RS. I seen 3/4"s but I think the diameter of the RS is an inch. Can you confirm?

And it's not because I don't like your idea, it's because Lowes is right down the street and it'll be in the 2 dollar range.
 
Well I did find a reason why the 14b wasn't "pulling".

The vacuum hose to the wastegate was torn up, as with the vacuum hose from the BCS to the intake nipple. ftl :p

Didn't get a chance to go by lowes today, had too many errands to run. But after some tranny lube, new tbolts, and new vacuum hose it does run a lot better. Now I have to recirculate that bov.

To weld the piece or the 1g? I think I'm gonna go with the 1g. Anybody want a free RS? :D
 
If I had the means to vent I would. I just gave away my last 1g BOV. Let me see if I happen to have another laying around :p.
Mike
 
The vacuum hose to the wastegate was torn up, as with the vacuum hose from the BCS to the intake nipple. ftl :p
That means you were over boosting to infinity and knocking like a mofo as I suspected, now you understand the importance of a solid boost gauge as anything can go wrong at anytime, let's hope your 14b has not already been damaged. A boost leak test is a must anytime any part of the intake tract is touched, that includes a turbo install.

Anybody want a free RS? :D
Sure. :D
 
Well I did find a reason why the 14b wasn't "pulling".

The vacuum hose to the wastegate was torn up, as with the vacuum hose from the BCS to the intake nipple. ftl :p

Didn't get a chance to go by lowes today, had too many errands to run. But after some tranny lube, new tbolts, and new vacuum hose it does run a lot better. Now I have to recirculate that bov.

To weld the piece or the 1g? I think I'm gonna go with the 1g. Anybody want a free RS? :D

I want one...
 
You would have surely found that cracked wastegate actuator hose, if you had run a boost leak test! You would have heard it.

The 14b needs an intercooler upgrade to get the most out of it. But it should be worlds better than the t25 that was on your 2g right now. Another trick to get a little more out of the 14b is to run a little more lag but get quite more power up top; by swapping in a 7 cm^2 turbine housing. Used they can be had for cheap in the classifieds. . .

Welcome to the world of real turbochargers:p .
 
dsm-onster said:
Welcome to the world of real turbochargers:p .







Hey, f**k you. <a href="http://planetsmilies.net" title="angry smiley"><img src="http://planetsmilies.net/angry-smiley-8087.gif" alt="http://planetsmilies.net/angry-smiley-8087.gif" title="angry smiley" style="border-width:0;"/></a>
 
ummm.. stock with no MBC hooked up? you are not running 12 lbs.. and even if you were, you wouldnt know.. LOL.. a boost gauge is critical..

14b is a dope turbo for the size.. efficient, cheap, powerful, and a better turbo than that crap t25... haha

boost leak test, do your timing, install that fuel pump and what not, and turn that puppy up to 12.. I ran mine at 12 aaalllll day and never had a problem, and it actually had a decent amount of power.. I wasnt really expecting that big of a difference between 7 and 12 psi... you should feel it a 15 (that was by accident.. haha)... it pulls hard..

If you boost too high, and dont have supporting mods, you knock hard.. and then you get broken pistons and all types of naughty things happen.. your car pulls timing to avoid this as much as possible.. thats why it feels slow.. and +1 for the boost leak test.. it makes a world of difference if you have any leaks to fix...
 
ummm.. stock with no MBC hooked up? you are not running 12 lbs.. and even if you were, you wouldnt know.. LOL.. a boost gauge is critical..

14b is a dope turbo for the size.. efficient, cheap, powerful, and a better turbo than that crap t25... haha

boost leak test, do your timing, install that fuel pump and what not, and turn that puppy up to 12.. I ran mine at 12 aaalllll day and never had a problem, and it actually had a decent amount of power.. I wasnt really expecting that big of a difference between 7 and 12 psi... you should feel it a 15 (that was by accident.. haha)... it pulls hard..

If you boost too high, and dont have supporting mods, you knock hard.. and then you get broken pistons and all types of naughty things happen.. your car pulls timing to avoid this as much as possible.. thats why it feels slow.. and +1 for the boost leak test.. it makes a world of difference if you have any leaks to fix...



I had a boost gauge installed before using the t25 and I was reading 12psi. So I figured since I hooked up the 14b nipples to the bcs it would read the same. Anyway, I just t'd in the Boost gauge and installed the mbc with the knob all the way out, reads 0.

I had to eat some food and get my mind off it for a bit because I waited all day to do this.

I'm gonna take the mbc off and run it to see how much boost I'm running. bbs
 
Gah dam!!!!

This turbo pulled so hard! I let off at 6-7 psi but sheesh the psi might have been low but the ride was sooo nice!

I can't imagine you guys with the 16gs and up. Man, I'm all pumped up right now. haha, I recommend this big time!
 
Gah dam!!!!

This turbo pulled so hard! I let off at 6-7 psi but sheesh the psi might have been low but the ride was sooo nice!

I can't imagine you guys with the 16gs and up. Man, I'm all pumped up right now. haha, I recommend this big time!

The higher flowign hotside means more power per psi of boost. Gotta love Volumetric Efficiency!

DSMunknown, :D .
 
Whoever said that you need a fmic to utilize a 14 is crazy. A supra sidemount would turn your 14b car with some race gas into a 12 second car easy with the right mods and tuning ability.

The t25 is like high;y modded NA car ROFL

And to the guy that I guess is still running the t25 and said #### you LOL don't feel bad there is always the guy with t25 and spray running 11's so there's hope. You just have to gut your car get slicks(if your a gst) and spray enough enough nitrous into your car to blow up a green eclipse while you and vin run away yelling NOS LOL ROFL
 
Whoever said that you need a fmic to utilize a 14 is crazy. A supra sidemount would turn your 14b car with some race gas into a 12 second car easy with the right mods and tuning ability.
Well, for the cost of a supra sidemount and the less extensive fab work, it is my opinion that a fmic is worth it, considering the cost of ebay FMICs. I'm not saying that a supra sidemount won't do EXCELLENT for a 14b. But it just makes things easier when you're really "kicking a turbo's keg" to have that *extra* security that your aircharge is its coolest.

The t25 is like high;y modded NA car ROFL

And to the guy that I guess is still running the t25 and said #### you LOL don't feel bad there is always the guy with t25 and spray running 11's so there's hope. You just have to gut your car get slicks(if your a gst) and spray enough enough nitrous into your car to blow up a green eclipse while you and vin run away yelling NOS LOL ROFL

Well, guys. I'd like to think that Anthony was teasing. I was. . .
 
Man, some people can't take a joke.


Oh I knew he was joking so was I. I found his post halarious:thumb:

Edit: by the way agreed 100% on the fmic call I have a ebay fmic so I know the cost/performance aspects of them. But a fmic is not needed to run a 14b is really effective. And i'm not sure if you guys have ever done it but you can have a supra smic setup for less than 200 bucs if your smart a fmic setup will not cost less then 350 even with ebay parts. If yoru a budget guy that's a big diffrence to others it's not work it.
 
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