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-   -   divided exhaust housing flapper valve.. quick spool down low, big power up top? (https://www.homemadeturbo.com/fabrication-14/divided-exhaust-housing-flapper-valve-quick-spool-down-low-big-power-up-top-97650/)

gon3r 12-19-2008 01:55 PM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 

Originally Posted by t_cel_t
just remember that the flapper has to seal PERFECTLY otherwise if there is a leak it will quickly erode, similar to a burnt valve.
weir has good flanges but the quality of the cut on his is fairly low and you will not be able to seal against it.the piece originally posted has obviously been CNC'd from solid plate.

i've made one off flanges that are 1" thick for customers and they were machined, not laser cut, so the finish that is required isn't hard for me to meet. if anyone is interested in doing one of these i'd be willing to help out. just pm me. ;)

mandrel-bends 12-19-2008 03:46 PM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 
I don't see the point. I bet you get a CDM knock off on ebay within 3 months.

Passenger 12-20-2008 06:20 PM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 

Originally Posted by Racing-Solutions
I don't see the point. I bet you get a CDM knock off on ebay within 3 months.

+1
People here aren't typically interested in paying the bucks for the best quality anyways, not saying there is anything wrong with that.

seerex 12-22-2008 12:29 AM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 

Originally Posted by weiRtech
i've made one off flanges that are 1" thick for customers and they were machined, not laser cut, so the finish that is required isn't hard for me to meet. if anyone is interested in doing one of these i'd be willing to help out. just pm me. ;)

I think 1/2" would be fine, but anyways I am going to pm you.

TurboGuy 12-22-2008 08:58 PM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 

Originally Posted by Racing-Solutions
Extremely simple piece to manufacture.

You just risk being sued by SP for producing them.

Just change it up a little bit, run the flapper from the side or something and call it an improvement in flow, they cant say ----

cmr333 12-24-2008 01:00 AM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 
in order for someone to make something and not infringe on another product there has to be a 10% difference in the piece. so change the design or use different parts or what ever to set it 10% apart from the original and like 1/10 of the price

Tom-Guy 12-28-2008 04:52 PM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 

Originally Posted by robus
You're joking, right? Think you can rig an electric actuator to a Vgt just like that? Good luck figuring that one out.

The Garretts take a PWM input, I'm sure others do as well. You can use basically any old EBC you have laying around or get HMT with a 555 timer that skews with RPM, driving an IGBT. It'd take less time to do than make this flange doo-dad, and much less expensive. All the newer VNT/VGT turbos have the EGT problems resolved, you just have to worry about keeping the soot from building up which means every tard who doesn't understand how to set up a crankcase breather is going to report massive and frequent VNT/VGT failure, which is fine with me because it keeps those units cheap for those of us who know what we're doing.

:P

2GeclipseRST 01-22-2009 02:44 PM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 

Originally Posted by creativepunka
From memory the series 4 RX7 uses this type of setup standard.

I thought it was the series 5..... Whatever though.

I think that setup is stupid on a turbo that small. Some ass tried to tell me i should turbo my six port with stock 4 port turbo parts...... Too much bullshit involved. Secondary flappers....etc. That system would be tits on a rotary with a larger framed turbo though. Maybe on a t04e with a 1.00 a/r hotside or bigger. Hmmm......

Bossman 01-23-2009 04:37 AM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 
There is already someone selling these on Ebay. They don't have the canister wastegate actuator, though.
His initial price was $99 for any style, but I see he has increased the price to #160. Search for "quicker spool".
No, I'm not affiliated in any way.
$500 is just insane for what you get. You can almost buy a complete s400 turbo for that price.

BoostForLife 01-23-2009 04:51 AM

Re: divided exhaust housing flapper valve.. quick spool down low, big power up top?
 

Originally Posted by Bossman
There is already someone selling these on Ebay. They don't have the canister wastegate actuator, though.
His initial price was $99 for any style, but I see he has increased the price to #160. Search for "quicker spool".
No, I'm not affiliated in any way.
$500 is just insane for what you get. You can almost buy a complete s400 turbo for that price.

Your not going to scam anyone on this website you dumb ----. The seller only has 1 feedback for some ---- he bought and even that is private. Just like you here have one post.


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