14b turbo
12-04-2007, 01:24 AM
#11
0.0 BAR
Thread Starter
Join Date: Oct 2007
Posts: 44
Re: 14b turbo
I'm kinda new to turbo's in general. I know how the external and internal gates work, but I'd have to learn more about my application before I switched to an external wastegate. Right now I'm planning on running an HF manifold with an adapter plate. If I change manifolds I'll most likely have to refabricate my downpipe, I might switch to an external after I get everything working properly, but as of right now, I just want to get the stock gate working.
Any more suggestions is appreciated. Thanks for the info so far.
Any more suggestions is appreciated. Thanks for the info so far.
12-04-2007, 01:40 AM
#12
1.5 BAR
Join Date: Oct 2006
Posts: 1,147
Re: 14b turbo
if you got the turbo off and are competent enough to take it apart take off the turbine housing and port out the stock WG hole
the worst thing that can happen is you might a have a couple of 100 rpm of lag but on a 14b it wont matter
trust me this will help
the worst thing that can happen is you might a have a couple of 100 rpm of lag but on a 14b it wont matter
trust me this will help
12-05-2007, 04:52 AM
#13
1.5 BAR
Join Date: Nov 2006
Posts: 1,453
Re: 14b turbo
There's the clamp that holds the hotside on like you're talking about, but that's not it. That one just comes off with a 10mm socket. The one you need to remove and then rotate the compressor housing is on the other side of the turbo. It colds the compressor housing onto the center section. Put the turbo on the ground compressor inlet down so the turbine wheel is facing you and look down and you'll see how it it works. It's a snap ring that is really strong and is hard to compress, but when you get it off you can rotate the housing so the actuator lines up and your flapper will be closed. Easy thing to do really.
12-06-2007, 09:35 PM
#15
3.0 BAR
Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: 14b turbo
If worse comes to worse you can always ditch the wastegate actuator entirely and run the old-school carb spring setup. I did that on my very first z6/14b build and was better IMO than the actual wastegate. Never have to worry about overboosting, and if you want the boost to be higher just stretch the springs tighter. 
12-06-2007, 11:33 PM
#16
1.5 BAR
Join Date: Nov 2006
Posts: 1,453
Re: 14b turbo
Originally Posted by slo_crx1
If worse comes to worse you can always ditch the wastegate actuator entirely and run the old-school carb spring setup. I did that on my very first z6/14b build and was better IMO than the actual wastegate. Never have to worry about overboosting, and if you want the boost to be higher just stretch the springs tighter.
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12-07-2007, 01:19 PM
#18
3.0 BAR
Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: 14b turbo
Lol surprised you guys never heard of the carb spring trick, that one's an oldy that works well. Basically you take off your stock wg actuator (stock 14b one is usually around 10-12psi anyway, and you'd have to bend the bracket that mounts to the compressor in order to crack the wg flapper open to lower your boost psi but at a loss of spool time) and replace it with those cheapo dual carburetor springs you can find at most any auto parts store. Take the smaller hook ends and stick them on the wg flapper arm and figure a way to secure them so they don't pop off (I usually just take safety wire and wrap it through the cotter pin hole and around the spring hook ends to hold them) and stretch the springs to a spot (I think I hooked mine around one of the water lines the first time and went to the oil inlet line after that) that puts a little bit of tension on them. Start out slowly with the springs looser to see what pressure it hits, and slowly stretch it a little bit more or less for more or less boost pressure. Once you find the psi you want to run, just leave it there. Opens up a lot of space that used to be taken up by the wastegate since the way we usually mount 14b's with hf mani's means the wg is on the backside and you don't have to deal with overboosting or hard spikes from stock wastegates. It uses the exhaust pressure to push the flapper open on it's own, and if a spring pops off you never have to worry about an overboost situation since the flapper will just fully open once the exhaust hits it.
12-07-2007, 02:39 PM
#19
1.5 BAR
Join Date: Oct 2006
Posts: 1,147
Re: 14b turbo
Originally Posted by slo_crx1
Lol surprised you guys never heard of the carb spring trick, that one's an oldy that works well. Basically you take off your stock wg actuator (stock 14b one is usually around 10-12psi anyway, and you'd have to bend the bracket that mounts to the compressor in order to crack the wg flapper open to lower your boost psi but at a loss of spool time) and replace it with those cheapo dual carburetor springs you can find at most any auto parts store. Take the smaller hook ends and stick them on the wg flapper arm and figure a way to secure them so they don't pop off (I usually just take safety wire and wrap it through the cotter pin hole and around the spring hook ends to hold them) and stretch the springs to a spot (I think I hooked mine around one of the water lines the first time and went to the oil inlet line after that) that puts a little bit of tension on them. Start out slowly with the springs looser to see what pressure it hits, and slowly stretch it a little bit more or less for more or less boost pressure. Once you find the psi you want to run, just leave it there. Opens up a lot of space that used to be taken up by the wastegate since the way we usually mount 14b's with hf mani's means the wg is on the backside and you don't have to deal with overboosting or hard spikes from stock wastegates. It uses the exhaust pressure to push the flapper open on it's own, and if a spring pops off you never have to worry about an overboost situation since the flapper will just fully open once the exhaust hits it.
12-07-2007, 03:20 PM
#20
3.0 BAR
Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: 14b turbo
Originally Posted by Atticus
now thats old school
----, back then I had to make my own hf to 14b adapter plate since at the time no one offered one for sale. This is going back to the late 90's when fmu's and retarded dizzys ruled the honda boost world, even ghettodyne was still in it's infancy.
