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Alternative EBV
#198912
25/09/2006 20:13
25/09/2006 20:13
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Joined: Dec 2005
Posts: 3,158 Near Reading
JohnS
OP
I need some sleep
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OP
I need some sleep
Joined: Dec 2005
Posts: 3,158
Near Reading
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I'm thinking of looking into an alternative EBV to the standard one, and would like to gauge interest before I invest time and money into this.
The key benefit of the standard EBV is that if the ECU detects a problem (e.g. charge temps too high, or knocking even with ignition backed off) it will pull back the boost thus protecting your engine.
The key drawbacks of the EBV are that it allows some escape of boost and so prevents optimum spoolup, and its boost control on modified cars is often not great and tends to get worse the more the car is modified
Would there be any interest in an alternative electronic boost controller that would plug into the standard loom, and would overcome the drawbacks of the EBV? I guess the price point would be less than it costs to buy a decent boost controller (i.e. less than £100 I guess).
Cheers John
Former low boost hero - 616BHP@1.5 bar. 2.4 20VT RIP
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Re: Alternative EBV
#198913
25/09/2006 20:19
25/09/2006 20:19
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Anonymous
Unregistered
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Anonymous
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I suppose there will be interest! Out of curiosity, are you talking about a whole package (i.e. electronics + solenoid) or a different solenoid only? Have you got something in mind?
cheers
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Re: Alternative EBV
#198915
25/09/2006 20:35
25/09/2006 20:35
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Anonymous
Unregistered
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Anonymous
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Surely this is not for your car John ?
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Re: Alternative EBV
#198918
25/09/2006 20:55
25/09/2006 20:55
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Anonymous
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Anonymous
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My ECU gladly seem to allow 1.4bar at times (V-Power Times). I'll be happy to buy one John. Not that I suffer much from my EBV, it's just the work of cleaning it now and then... (when it starts to hesitate)
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Re: Alternative EBV
#198922
25/09/2006 23:00
25/09/2006 23:00
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Anonymous
Unregistered
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Anonymous
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I've looked into this quite a bit. There are several technical difficulties not least of which is that you will have to read from the ECU, interpret and write out an alternative boost control programme , all in the time that it takes for a car to go on/off boost, i.e microseconds.
Personally I dont think its possible, I'm not even sure why you would want to do it, given that the MAF based boost circuit is a bit, well crap, anyway for the main reason that it has no idea at anyone time what the boost level actually is. You really need MAP, and preferably load and TPS based sensing for proper boost control.
Last edited by cosmograph; 25/09/2006 23:03.
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Re: Alternative EBV
#198924
26/09/2006 00:11
26/09/2006 00:11
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Anonymous
Unregistered
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Anonymous
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Second that John! My set up (EBV, V-Power, Novitec) is working perfectly when it's cleaned up and serviced properly. As I said I get a stable 1.4bar in cold weather, with 99octane. On the other hand, driving across hot Europe this summer on 95octane had the ECU lower max to 0,7bar! Needless to say I'm glad I wasn't using any PRV, my pistons may have melted.
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Re: Alternative EBV
#198925
26/09/2006 01:47
26/09/2006 01:47
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Joined: Dec 2005
Posts: 928 Wimbledon
paddy
Enjoying the ride
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Enjoying the ride
Joined: Dec 2005
Posts: 928
Wimbledon
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I'm running on a standard ECU. I'm going to give the Perrin a go on a rolling road in the not to distant future. Don't see how it could be much diffrent to the existing valve, appart from being more responsive, and able to cope with higher boost. Having said that the ECU may not like it - we'll see. Apparently the VAG 1.8T lot switch EBV's quite a lot to units with diffrent response speeds. I'll let people know how it goes.
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Re: Alternative EBV
#198926
26/09/2006 01:48
26/09/2006 01:48
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Joined: Dec 2005
Posts: 928 Wimbledon
paddy
Enjoying the ride
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Enjoying the ride
Joined: Dec 2005
Posts: 928
Wimbledon
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I said the above, as the EBV is just an on/off valve which the ecu rapidly cycles to try and set boost levels - is this correct?
Last edited by paddy; 26/09/2006 14:22.
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Re: Alternative EBV
#198929
26/09/2006 19:03
26/09/2006 19:03
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Joined: Dec 2005
Posts: 928 Wimbledon
paddy
Enjoying the ride
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Enjoying the ride
Joined: Dec 2005
Posts: 928
Wimbledon
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Cheers Pistole Just fitted my Perrin EBCS and i'm impresssed. Seems a little more responsive when coming onto boost now, the boost seems a bit more stable than with the OE item. for the first couple of runs, I got a couple of nasty 1.5 bar boost spikes, but the ECU seems to have adjusted pretty quickly, and its working fine now. The manual seems to sugest using 2 of the ports, and using a t peice conector. I checked what happend with the air flow on the stock item, and the new Perrin Item, and I think this is the correct way to rig it: Perrin port 1 --> blue pipe Perrin Port 2 --> the pipe to the turbo intake Perrin Port 3 --> red pipe Installed: http://i47.photobucket.com/albums/f158/paddy0d/26-09-06_1234.jpgJohn, it looks like you can rig it up diffrent ways for fast interuption type response (whatever that is ) and for external wastegates. So that side of things may be of more use to you guys with aftermarket ECU's and mad Turbo's A couple of pages from the manual that may be of intrest: http://i47.photobucket.com/albums/f158/paddy0d/IMG_2120.jpghttp://i47.photobucket.com/albums/f158/paddy0d/IMG_2123.jpg
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Re: Alternative EBV
#198930
26/09/2006 19:25
26/09/2006 19:25
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Joined: Dec 2005
Posts: 3,158 Near Reading
JohnS
OP
I need some sleep
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OP
I need some sleep
Joined: Dec 2005
Posts: 3,158
Near Reading
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looks good !! Is it holding the same boost as the standard EBV then? Does it hold boost better at the top end? (I guess this will also depend what the map is like on the ECU)
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Re: Alternative EBV
#198931
26/09/2006 19:40
26/09/2006 19:40
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Anonymous
Unregistered
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Anonymous
Unregistered
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So you still have to stick with the premapped max boost or could you adjust it to say 1.1-1.2 max boost?
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Re: Alternative EBV
[Re: paddy]
#653701
28/07/2008 21:40
28/07/2008 21:40
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sprintsteve
Unregistered
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sprintsteve
Unregistered
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you had any more 1.5bar spikes paddy ?
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Re: Alternative EBV
[Re: paddy]
#654052
29/07/2008 11:58
29/07/2008 11:58
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hapaman
Unregistered
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hapaman
Unregistered
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Have to confirm that the GM EBV is really an alternative to the OE EBV. Boost is exactly how it should be, without any boost spikes. And I almost forgot how smooth it's to drive with a proper boost control instead of using a PRV.
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Re: Alternative EBV
[Re: ]
#654083
29/07/2008 13:01
29/07/2008 13:01
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GreyFurby
Unregistered
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GreyFurby
Unregistered
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Quick but important note - IF YOU'VE JUST CHANGED FROM A PRV TO AND EBV PLS RESET YOUR ECU. I forgot and the fuelling went squiffy
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Re: Alternative EBV
[Re: ]
#654088
29/07/2008 13:09
29/07/2008 13:09
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GreyFurby
Unregistered
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GreyFurby
Unregistered
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FYI - here's another solenoid you can use. Its very similar to the perrin but w/o the daft markup its 55 yankee dollar*. store And this direct link might work... product link worky? All these one's should be close to plug and play with the Pierburg (they will flow differently but duty cycles is pretty universal). However, can't help but think that the boost take off in the intake is not the best place - nearer the compressor wheel would give it better control, no? ps) * Mr Dom is a nice chap and postage is cheap (but rather slow)
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Re: Alternative EBV
[Re: ]
#654144
29/07/2008 14:23
29/07/2008 14:23
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doug20vt
Unregistered
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doug20vt
Unregistered
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how do u reset the ecu, do u just disconnect the battery for half an hour
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Re: Alternative EBV
[Re: ]
#654286
29/07/2008 17:44
29/07/2008 17:44
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GreyFurby
Unregistered
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GreyFurby
Unregistered
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There must be a better way.. but yes
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