Can you put a blowoff valve on a dodge CTD? Just curious because it would sound pretty cool. If so where would you get one? <br><br>

 

NO! you can't it works different then a car would.

 

ok, I guess I dont understand. Why wouldn't it work?

 

[quote author=Jamie Attridge link=board=7;threadid=17437;start=0#163183 date=1058978395]<br>NO! you can't it works different then a car would.<br>[/quote]<br><br>Why can't you? We have no throttle body, but there still no reason you &quot;couldn't&quot; install one if you so desired.

 

You can put one in. We use them on twins all the time.

 

Yes you can!

The one Nathan (Idaho CTD) is talking about is just to limit boost.

The real function of a Blow Off Valve is to eliminate the surge or &quot;bark&quot; that could destroy a turbo. BD Power sells the kit.

 

I stand Corrected.

 

BD-Power up in Canada has one that is idea for our needs. The purpose of it, as mentioned already, is to keep the turbo(s) from barking. It has been tested on twin turbo setup's also, and still worked great.<br><br>Now if your wanted to control your boost pressures with one, there are things out that. This is mostly for twin turbo setups.<br><br> <br>Andrew

 

The Wastegate,, either external, or internal, limits boost by &quot;seeing&quot; boost pressure and opening a &quot;gate&quot; to control the drive pressure on the exhaust wheel.

A Blow-off, or pop-off valve &quot;sees&quot; the difference in pressure between the throttle body and turbine outlet, when there is a vacuum in the throttle body (manifold) the Blow-Off Valve opens, and lets the extra pressure out.

A Diesel has no Vacuum, or Throttle body, (If you have a vacuum on a Diesel,,, you have some serious problems)
A blow-off valve is MUCH more complex, and LESS necessary on a Diesel.
A stock truck will build between 15 and 20 PSI boost at WOT, when you let off the fuel, the air just continues to flow into the motor until the turbo slows down and stops producing boost (a stock truck CAN produce a few more pounds boost, but the extra boost is of no gain without extra fuel)
Therefore on a stock truck, it is of no gain to use it.

On Modified trucks, Boost pressure can run well over twice what a normal passenger car tire will hold. When you lift off the fuel, the Pop-Off valve gives the extra air somewhere to go,, since the motor can't swallow that much air at one time. (Picture an Eighteen wheeler tire exploding in your intercooler (without debris), all that pressure has to go in your motor, or back out through your turbo(s)), and since the motor can't take it, it has to go back out your intake,, through your turbo's. This creates a situation called Turbo Bark, turbo bark can EASILY break a weak, or un-modified turbo.

The biggest challenge is trying to figure out when to open the valve, and how to open it. BD has it figured out, and that is probably your best bet.

I'm not sure how it sounds,, as I don't have one yet, but I don't think it will sound exactly like a gassers turbo does. Gassers have no where near the lag we do, and they also build boost under no-load conditions. Which means a gasser can rev his motor up to 3,000RPM , let off and have 4-5PSI PSI boost to get rid off, where a Diesel will have to be under a descent sized load to make a good amount off boost.

Hope this is not to confusing,

Merrick Cummings Jr

 

a BOV has a high pitched whoosh/chirp sound... not too dissimilar to a wastegate.<br>for a HP CTD or other diesel a BOV will prevent your turbo from stalling (barking) and allow the turbo to freewheel at the preset level of the BOV... in short your turbo will lag less on your next upshift. this device is of its greatest value on manual transmission vehicles.

 

Someone give me a link, I want one if they are not too expensive!!! ;D ;D

 

We joke around here because I have a Done up Talon when you are running side by side with someone and he shifts and if you hear his car sneeze at you, then you know its modded and has a BOV.

 

[quote author=MCummings link=board=7;threadid=17437;start=0#163400 date=1059009051]<br>I'm not sure how it sounds,, as I don't have one yet, but I don't think it will sound exactly like a gassers turbo does. Gassers have no where near the lag we do, and they also build boost under no-load conditions. Which means a gasser can rev his motor up to 3,000RPM , let off and have 4-5PSI PSI boost to get rid off, where a Diesel will have to be under a descent sized load to make a good amount off boost.<br><br>Hope this is not to confusing,<br><br>Merrick Cummings Jr<br><br>[/quote]<br><br>My old tallon did not build boost under no load. And my Grandnational does not Build any boost when its not under load either. I can go down the road in either of them at a steady speed and pull vacumme all day long. Or i can sit there and rev the hell out of them and they dont pull boost

 

[quote author=QUICKMCSS link=board=7;threadid=17437;start=0#163566 date=1059055871]<br>[quote author=MCummings link=board=7;threadid=17437;start=0#163400 date=1059009051]<br>I'm not sure how it sounds,, as I don't have one yet, but I don't think it will sound exactly like a gassers turbo does. Gassers have no where near the lag we do, and they also build boost under no-load conditions. Which means a gasser can rev his motor up to 3,000RPM , let off and have 4-5PSI PSI boost to get rid off, where a Diesel will have to be under a descent sized load to make a good amount off boost.<br><br>Hope this is not to confusing,<br><br>Merrick Cummings Jr<br><br>[/quote]<br><br>My old tallon did not build boost under no load. And my Grandnational does not Build any boost when its not under load either. I can go down the road in either of them at a steady speed and pull vacumme all day long. Or i can sit there and rev the hell out of them and they dont pull boost<br>[/quote]<br><br>Did you modify your Talon Im starting but would love some good info!

 

Your best bet is to go to a DSM (dimond Star Motors) web site like this one http://www.dsm.org/menu.epl?item=1 those are a bunch of &quot;free mods&quot; as they call them. You can up your boost on those things with a trip to the pet store. Those are fun little cars. Mine was a 91' TSI AWD 5spd. Mod the air box/can on your car if it hasnt been done. On mine all I did was take the silencing horn off and you could hear that little baby turbo spool.