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with the stock set up how many pounds of boost is the turbo making? Anyone have a boost controller installed, or boost gauge? If so how much can the car safely handle before the engines shuts down? HOw can iget more boost out of the car?
 

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Re: boost (chewyjr15)

<A HREF="http://forums.swedespeed.com/zerothread?id=54800" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=54800</A> <p><A HREF="http://forums.swedespeed.com/zerothread?id=41277" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=41277</A><p><A HREF="http://forums.swedespeed.com/zerothread?id=28390" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=28390</A><p>Try these three for now. Essentially without a chip there really is no reason for a boost gauge, and most say boost controllers with get rejected by our cars computer aka waste of money.
 

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a buddy of mine went into my engine bay and did something with the wastegate. atleast thats what he told me. anyway, now the car pulls a good amount harder than it did before. <p>when we clocked the 0-60 before and after, there was a difference of about .3 and you can definitly feel the boost kicking in a bit earlier and spiking harder.<p>which is why im thinking of installing a boost gauge.<p><br><i>Modified by cicatrizdare at 11:00 AM 6-18-2006</i><BR><BR>
<i>Modified by cicatrizdare at 11:00 AM 6-18-2006</i>
 

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Re: (cicatrizdare)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>cicatrizdare</b> »</i></TD></TR><TR><TD CLASS="quote">a buddy of mine went into my engine bay and did something with the wastegate. atleast thats what he told me. anyway, now the car pulls a good amount harder than it did before. <p>when we clocked the 0-60 before and after, there was a difference of about .3 and you can definitly feel the boost kicking in a bit earlier and spiking harder.<p>which is why im thinking of installing a boost gauge.<p></TD></TR></TABLE><p>"Fiddling" with the wastegate is not going to make your car go faster.<p>Yannis
 

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Re: (GrecianVolvo)

I really don't know what he did. He adjusted something in the engine bay and the car definitly pulls harder, its not an exageration and im not trying to sound like we made the car insanely ridiculously fast, it is quicker to spool up now though and everyone of my buds who jumped in with me to see agreed.
 

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Re: (GrecianVolvo)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>GrecianVolvo</b> »</i></TD></TR><TR><TD CLASS="quote">"Fiddling" with the wastegate is not going to make your car go faster.</TD></TR></TABLE><p>Oh? On a few turbo cars I'm familiar with you can shim the wastegate or install a different spring to make more boost.
 

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Re: (quick)

It seems like thats what he did. He adjusted it and from what he showed me, made it shorter so in turn the turbo spools faster I guess. I can assure you I feel the difference.
 

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I know on some cars you can shorten the wastegate arm (by an adjuster nut or something) that will keep the wastegate closed a little longer = more boost. However this CAN lead to problems such as boost spiking and surging and stuff.<p>This may or may not apply to an S40 though.
 

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Re: (Crashy)

Ding ding, there we go. He shortened the arm by twisting that nut he showed me. I forgot exactly what he had told me. But yea, he didnt adjust it ALOT, only a couple turns. It was enough he told me that it wouldnt throw a CEL or give me any problems.
 

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Re: (Nebor)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Nebor</b> »</i></TD></TR><TR><TD CLASS="quote">Tweaking the wastegate isn't a smart or safe way to gain power. And your ECU may punish you for it.</TD></TR></TABLE><p>That totally depends on the car. If you're going to do it you should have a boost gauge and probably test the car on the dyno first to ensure that the A/F doesn't get out of whack. Also running 91+ octane will help prevent issues. <p>But to categorically say it isn't safe or smart isn't accurate. You are right that the ECU can/will pull timing to prevent detected detonation, though. Depends on the ECU, etc.
 

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Re: (quick)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>quick</b> »</i></TD></TR><TR><TD CLASS="quote"><p>That totally depends on the car. If you're going to do it you should have a boost gauge and probably test the car on the dyno first to ensure that the A/F doesn't get out of whack. Also running 91+ octane will help prevent issues. <p>But to categorically say it isn't safe or smart isn't accurate. You are right that the ECU can/will pull timing to prevent detected detonation, though. Depends on the ECU, etc. </TD></TR></TABLE><p>Fortunately this isn't the car lounge, it's the S40 board, where I'm not generalizing about all cars. So let me restate:<p>Tweaking the wastegate isn't a smart or safe way to gain power. And your ECU may punish you for it. (on an s40)
 

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Well, no problems as of yet and it wasnt turned and adjusted ridiculously. A small little bit of adjustment that felt like it gave me a decent pop of power. 93 octane is my normal fuel and the car is running beautifully. <p>Nebor, if anything was gonna go wrong, whats gonna happen?
 

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Re: (cicatrizdare)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>cicatrizdare</b> »</i></TD></TR><TR><TD CLASS="quote">Well, no problems as of yet and it wasnt turned and adjusted ridiculously. A small little bit of adjustment that felt like it gave me a decent pop of power. 93 octane is my normal fuel and the car is running beautifully.</TD></TR></TABLE><p>I would look it at this way: if it's so easy, quick, and cheap (free) to get a bit of extra performance out of the engine, wouldn't Volvo have made the car that way in the first place? Granted, I know nothing about this, but it seems like nothing's free. Surely there's some tradeoff, even if it's just slightly higher risk of something negative. Is the risk worth it, especially since whatever adjustment was made likely would be regarded as warranty-voiding if it contributed to a problem and was detected?
 

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Re: boost (chewyjr15)

This was discussed before a while back.<br><A HREF="http://forums.swedespeed.com/zerothread?id=50823" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=50823</A>
 

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Re: (Nebor)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Nebor</b> »</i></TD></TR><TR><TD CLASS="quote">Tweaking the wastegate isn't a smart or safe way to gain power. And your ECU may punish you for it. (on an s40)</TD></TR></TABLE><p>thanks for that info. Could you provide a link to some information that proves your assertions, please? <p>I'd love to learn more about why this is bad, when running proper fuel. <p>Btw, how much is a new short block anyway? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0">
 

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Re: (quick)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>quick</b> »</i></TD></TR><TR><TD CLASS="quote"><p>thanks for that info. Could you provide a link to some information that proves your assertions, please? <p>I'd love to learn more about why this is bad, when running proper fuel. <p>Btw, how much is a new short block anyway? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"></TD></TR></TABLE><p>Alright, to start with the T5 engine of the S40 is in actuality an LPT engine. It's high compression with an itsy bitsy turbocharger. <p>When you start tightening up the wastegate, that increases the amount of time that it takes for the turbocharger to respond to the ECU's commands. That will result in you building more boost than the ECU is prepared for, and rather quickly at that. The ECU responds by dumping in a bunch of fuel, and pulling timing to keep things from blowing up. Your left with decreased performance overall. Believe it or not, the wastegate has a certain setting from the factory for which the ECU and BCS is configured!<p>Now if you really tighten it up the wastegate, not only are you going to build boost quickly, but it won't be letting off fast enough. This can cause you build way more boost than stock. And when you're dealing with a high compression engine, and a tiny turbocharger, going beyond the amount of boost for which the ECU is prepared for is a baaad idea. Your tiny turbocharger is now producing super heated air, greatly increasing your IATs and your chance of detonation. This problem is amplified in hot environments. Mix these high IATs with your high compression engine, and you've got a recipe for serious detonation. That means bent rods, ventilated blocks, blown head gaskets, etc.<p>So leave your WG at it's stock setting, and get your ECU programmed by someone who knows what they're doing. You'll get much better performance, and you won't blow up your car.
 

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Re: (Nebor)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Nebor</b> »</i></TD></TR><TR><TD CLASS="quote">Alright, to start with the T5 engine of the S40 is in actuality an LPT engine. It's high compression with an itsy bitsy turbocharger. </TD></TR></TABLE><p>Is 9:1 considered high compression? <p><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote »</i></TD></TR><TR><TD CLASS="quote">The ECU responds by dumping in a bunch of fuel, and pulling timing to keep things from blowing up.</TD></TR></TABLE><p>Does this happen any time more boost is made, or only when knock is detected?<p>Strikes me that with an A/F gauge, Obd2 timing reader (do they have them for the S40/V50), boost gauge you should be able to get some valuable data on mods like this on the dyno. Particularly a AWD eddy-current like a Mustang. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0">
 

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Re: (Nebor)

moved to <A HREF="http://forums.swedespeed.com/zerothread?id=61547" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=61547</A>
 
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