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03 November 2004, 03:57 PM
#6872
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Weeeeeeeeeelllllllllllllllllllllllllllllllllllllll ll
...basically 'coz of a few things I bin reading and some advice off BJ:
Apparently you do need some back pressure coz when it's all dumped to atmosphere, some fuel management bit dumps more fuel in to compensate against stalling and it can pop and bang and backwash/backflow over some seals and then a big hairy two headed goatlike creature with cups for feet and two ***** pops up and shouts 'AAAAARRRRGGGHHH, YA BASTAD' from your inlet manifold wastgate sump overhead piston slapback return.
Or summat like that.
Apparently you do need some back pressure coz when it's all dumped to atmosphere, some fuel management bit dumps more fuel in to compensate against stalling and it can pop and bang and backwash/backflow over some seals and then a big hairy two headed goatlike creature with cups for feet and two ***** pops up and shouts 'AAAAARRRRGGGHHH, YA BASTAD' from your inlet manifold wastgate sump overhead piston slapback return.
Or summat like that.
03 November 2004, 11:55 PM
#6876
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Originally Posted by HOUSEQUAKE
...basically 'coz of a few things I bin reading and some advice off BJ:
Apparently you do need some back pressure coz when it's all dumped to atmosphere, some fuel management bit dumps more fuel in to compensate against stalling and it can pop and bang and backwash/backflow over some seals and then a big hairy two headed goatlike creature with cups for feet and two ***** pops up and shouts 'AAAAARRRRGGGHHH, YA BASTAD' from your inlet manifold wastgate sump overhead piston slapback return.
Or summat like that.
Apparently you do need some back pressure coz when it's all dumped to atmosphere, some fuel management bit dumps more fuel in to compensate against stalling and it can pop and bang and backwash/backflow over some seals and then a big hairy two headed goatlike creature with cups for feet and two ***** pops up and shouts 'AAAAARRRRGGGHHH, YA BASTAD' from your inlet manifold wastgate sump overhead piston slapback return.
Or summat like that.
04 November 2004, 06:55 AM
#6877
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Morning all !
Well im at work but not for long i am finishing at 10:30 am today !!!
so the rest of the day to tinker with the scoob.
Filfy give me a call after 11am i will have a look for ya m8
(re sarah's text last night)
anyone after face lift head light's and standard rear light's?
job's to do to my scoob today????
re-work water spray
move intercooler
pumster
so the rest of the day to tinker with the scoob.
Filfy give me a call after 11am i will have a look for ya m8
(re sarah's text last night)
anyone after face lift head light's and standard rear light's?
job's to do to my scoob today????
re-work water spray
move intercooler
pumster
04 November 2004, 10:01 AM
#6879
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Mornin all. I had a day from hell yesterday - one of those day's where absolutely nothing goes according to plan and you just wanna break down in tears, hand yer notice in and go sell melons on a beach somewhere exotic.
But I've just read Bryn's technical explanation for choosing a recirc dv and I am now in tears of laughter That's the funniest thing I've read in ages!!!! So cheers Bryn for cheering me up 
Big J - no probs re Saturday night. Seeing as nobody else is coming (
) bring Joseph with you if you like. You haven't been to one of our parties before have you? Best you leave the car at home and cancel any plans you had for Sunday
Pum - "move intercooler"??????????? More details required................!!!
But I've just read Bryn's technical explanation for choosing a recirc dv and I am now in tears of laughter
That's the funniest thing I've read in ages!!!! So cheers Bryn for cheering me up Big J - no probs re Saturday night. Seeing as nobody else is coming (
) bring Joseph with you if you like. You haven't been to one of our parties before have you? Best you leave the car at home and cancel any plans you had for Sunday Pum - "move intercooler"??????????? More details required................!!!
Last edited by Scooby New; 04 November 2004 at 10:03 AM.
04 November 2004, 10:04 AM
#6880
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Morning all,Im home
Pum ive got some stuff to do to my scoob today.fit my new daws deviceand if poss can you get me another braided hose as the last one blew a hole.I tried to get one of the rig but thay were the wrongsize and fitting 
As regarding saz text it is still not working and any help would be greatful
Pum ive got some stuff to do to my scoob today.fit my new daws device
and if poss can you get me another braided hose as the last one blew a hole.I tried to get one of the rig but thay were the wrongsize and fitting As regarding saz text it is still not working and any help would be greatful
04 November 2004, 10:08 AM
#6881
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Originally Posted by filfy
Morning all,Im home
Pum ive got some stuff to do to my scoob today.fit my new daws deviceand if poss can you get me another braided hose as the last one blew a hole.I tried to get one of the rig but thay were the wrongsize and fitting
As regarding saz text it is still not working and any help would be greatful
Pum ive got some stuff to do to my scoob today.fit my new daws device
and if poss can you get me another braided hose as the last one blew a hole.I tried to get one of the rig but thay were the wrongsize and fitting As regarding saz text it is still not working and any help would be greatful
04 November 2004, 11:30 AM
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Clarification
Sorry guys, it appears I may have been wrong when explaining why I got a re-circulating type DV 
I had indicated that after the DV is the AFR, which expects a certain amount of airflow at any given time. When a VTA dumps the air out of the system, the ECU reacts to the missing air by dumping a bucket load of fuel in to prevent a stall. This causes the pops and bangs, but because some of the overfuelling is forced under compression, it goes past the pistons into the sump thinning the oil (borewash) and removing the microfilm of oil which lubricates the cylinders.
Well I was of course inherently wrong
The MAF sensor is immediately after the airfilter! Information from this is passed to the ECU which adds fuel accordingly in the correct quantity.
When a VTA dumpvalve dumps the air to atmosphere, that air has already been accounted for by the MAF, so the ECU fuels as if that air is still there as it has no way of knowing that some of the registered air had been dumped. It doesn't dump any EXTRA fuel at all. There is simply a reduction in the amount of air that the ECU has provided fuel for, hence a MOMENTARY overly rich state after the car has dumped off.
I believe this should clear things up
Mr Darley - I know of some screenwipes going cheap
My Lofty - delighted to have been instrumental in cheering you up a bit
I had indicated that after the DV is the AFR, which expects a certain amount of airflow at any given time. When a VTA dumps the air out of the system, the ECU reacts to the missing air by dumping a bucket load of fuel in to prevent a stall. This causes the pops and bangs, but because some of the overfuelling is forced under compression, it goes past the pistons into the sump thinning the oil (borewash) and removing the microfilm of oil which lubricates the cylinders.
Well I was of course inherently wrong
The MAF sensor is immediately after the airfilter! Information from this is passed to the ECU which adds fuel accordingly in the correct quantity.
When a VTA dumpvalve dumps the air to atmosphere, that air has already been accounted for by the MAF, so the ECU fuels as if that air is still there as it has no way of knowing that some of the registered air had been dumped. It doesn't dump any EXTRA fuel at all. There is simply a reduction in the amount of air that the ECU has provided fuel for, hence a MOMENTARY overly rich state after the car has dumped off.
I believe this should clear things up
Mr Darley - I know of some screenwipes going cheap
My Lofty - delighted to have been instrumental in cheering you up a bit
04 November 2004, 11:38 AM
#6885
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Where did you get that info from??? That's how I understood the pops and bangs were generated (ie perfectly safely!). Not heard of this "borewash" phenomenon before tho - sounds a bit scarey to me 
. So what causes that then?? The big 'orrible monster with cups for feet?
. So what causes that then?? The big 'orrible monster with cups for feet?
04 November 2004, 11:52 AM
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Steven, how would you know if your car's constantly overfuelling and you've got borewash? I'm like a car-hypochondriac aren't I? Somebody mentions a problem and I instantly panic in case I've got it
04 November 2004, 02:17 PM
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Originally Posted by Scooby New
I'm like a car-hypochondriac aren't I? Somebody mentions a problem and I instantly panic in case I've got it
[ Pictures Rainman walking behind Tom Cruise saying over and over; 'yeah right, yeah right' ]
Got my DV this morning, ordered it about 4PM yesterday
Still waiting for pads a refund for my disks...promised in September
04 November 2004, 03:58 PM
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Originally Posted by P20SPD
Bryn is that Godspeed by any chance?
I asked on SN if anyone had advice for a vendor not refunding, he read the mail and accused me of stirring up trouble on scoobynet
Whatever, the facts are: I returned the disks on July 26th. After two months of him trying to source the correct ones, he agreed to refund me and send me the correct pads...that was September 29th
The last correspondence I had from him was October 23rd where he said he wasn't trying to rip me off, he'd sent out a cheque and pads already that must have got lost.
still waiting...
04 November 2004, 04:32 PM
#6897
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That seems to be IMO a regular line and problem for godspeed.
I would personally send an email, letter by recorded delivery, stating that you want the refund as promised by x date, otherwise solicitors will be involved.
If you dont hear anything, get a solicitor involved, or i think you can do a small claim fairly easily these days.
Steven
I would personally send an email, letter by recorded delivery, stating that you want the refund as promised by x date, otherwise solicitors will be involved.
If you dont hear anything, get a solicitor involved, or i think you can do a small claim fairly easily these days.
Steven
04 November 2004, 04:46 PM
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Right, well I'll see you you all tonight then! (that's if I can get O2 to admit they've got GPRS problems and turn some of my unhappy customers into happy customers! But personally I think I'd have more success getting Bin Laden to confess where he's hidden his weapons of mass destruction.)
You gonna pop over for an hour Mr D???
You gonna pop over for an hour Mr D???
04 November 2004, 04:53 PM
#6899
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Afternoon All.
Housequake i would speak to trading standards.
Everyone from trading standards have gone home so i will speak to them tomorrow and let you know what they say.
bex
Housequake i would speak to trading standards.
Everyone from trading standards have gone home so i will speak to them tomorrow and let you know what they say.
bex