MINI2

P33 ULC · Nov 19th, 2007, 01:10 PM

If you cant fit a dump valve/Blow off valve to a supercharged cooper S, how come this one has one???? Its not an R56 S, if you look at his video part 2, you can see its an R53!! And also for 250ps, doesnt seem that quick??!?! Is it maybe twincharged n thats why its dumping???!

YouTube -...

minioneandrew · Nov 19th, 2007, 05:48 PM

....i recognise your face......

Technically its possible, bit it would be just like having a boost leak i think.

MINI-Morgan · Nov 19th, 2007, 06:25 PM

Twin Charge maybe??

Ummm how can you fit a dump valve to a supercharged car? other than a fake one ofcourse! In my mind there is no excess boost to release as the SC is after the throttle body.

minioneandrew · Nov 19th, 2007, 06:44 PM

A modification to the bypass valve, to vent somewhere? In essence after i put on my cai, i can here, a whoosh (very quiet) wen i change gear, im assuming this is the bypass valve closing?

P33 ULC · Nov 19th, 2007, 11:03 PM

On 2nd look, that is definitely twin charged. Listen to the turbo spooling up in the first few seconds of him pulling away. And hence why the supercharger doesnt sound that loud (cos on the twincharge kit i believe you fit an enlarged pulley as opposed to a reduced one so the supercharger aint gettin stressed out)

chuntington101 · Nov 21st, 2007, 06:32 AM

Quote: Originally Posted by P33 ULC (original)

On 2nd look, that is definitely twin charged. Listen to the turbo spooling up in the first few seconds of him pulling away. And hence why the supercharger doesnt sound that loud (cos on the twincharge kit i believe you fit an enlarged pulley as opposed to a reduced one so the supercharger aint gettin stressed out)

on a twincharged engine you would want a dump valve on there (post turbo pre throttle body). it will help the turn spool (well actually stop it form stalling).

most twincharged guys run stock pullies. if you where to spin the stock supercharger slower i dont think htere would be much point in keeping it on there. lol

Chris.

P33 ULC · Nov 22nd, 2007, 08:10 AM

Alta Mini Performance - Supercharger Pulley Oversized

Supercharger Pulley Oversized

Sold exclusively for custom S/C and twin charged applications. Stainless steel construction guarantees a lifetime of durability and performance.

MiniOneSam · Nov 22nd, 2007, 11:17 AM

Unless he has a Turbo from GTT in it maybe?

P33 ULC · Nov 22nd, 2007, 12:01 PM

Quote:

Unless he has a Turbo from GTT in it maybe?

Can still hear the supercharger though

V 5ARY · Nov 22nd, 2007, 12:59 PM

sorry that car is not twin charged!! far too slow..

chuntington101 · Nov 23rd, 2007, 12:02 PM

Quote: Originally Posted by P33 ULC (original)

Alta Mini Performance - Supercharger Pulley Oversized

Supercharger Pulley Oversized

Sold exclusively for custom S/C and twin charged applications. Stainless steel construction guarantees a lifetime of durability and performance.

nice find!

but its not going to spool the turbo up as fast as a stock one.

Chris.

Cooper_si · Nov 25th, 2007, 05:25 PM

Quote: Originally Posted by 300GP (original)

sorry that car is not twin charged!! far too slow..

Ive got to agree with you on that statement. Ive seen vids from the states with ALTA twin charge kits that wheel spin in 3rd in the dry !!! so this cant be twin charged.

Like most say theres prob a boost leak. There is a mechanical boost control valve under the RH intercooler horn but ive never heard this make a noise that loud.

Whooo knows what the sound could be......

Tüls · Nov 25th, 2007, 05:47 PM

Quote: Originally Posted by 300GP (original)

sorry that car is not twin charged!! far too slow..

deffinetly too slow for a TC car...

Quote: Originally Posted by P33 ULC (original)

Alta Mini Performance - Supercharger Pulley Oversized

Supercharger Pulley Oversized

Sold exclusively for custom S/C and twin charged applications. Stainless steel construction guarantees a lifetime of durability and performance.

While Alta does make the over sized pulley, it's really of no use... even with the stock pulley eventually the SC is in the way of the turbo, and if the SC was going any slower it wouldn't be able to take in the Turbo air fast enough. Most who have tried the over sized pulley have gone back to stock...

I have also tried under driving the SC... while good it didn't allot the turbo as much boost... and there for you loose power... but was very linear compared to the stock pulley which drives more like a turbo car...

Cooper_si · Nov 26th, 2007, 06:46 AM

Quote: Originally Posted by Tüls (original)

deffinetly too slow for a TC car...

While Alta does make the over sized pulley, it's really of no use... even with the stock pulley eventually the SC is in the way of the turbo, and if the SC was going any slower it wouldn't be able to take in the Turbo air fast enough. Most who have tried the over sized pulley have gone back to stock...

I have also tried under driving the SC... while good it didn't allot the turbo as much boost... and there for you loose power... but was very linear compared to the stock pulley which drives more like a turbo car...

I knew you would know something along these lines....

newyorkaddict · Nov 26th, 2007, 12:57 PM

Quote: Originally Posted by MINI-Morgan (original)

Twin Charge maybe??

Ummm how can you fit a dump valve to a supercharged car? other than a fake one ofcourse! In my mind there is no excess boost to release as the SC is after the throttle body.

My friend has a Dump Valve on his Polo G40, that uses a supercharger, i will see if i can find out how it works. Maybe try and get some pics if i can.

Cooper_si · Nov 26th, 2007, 05:29 PM

Quote: Originally Posted by newyorkaddict (original)

My friend has a Dump Valve on his Polo G40, that uses a supercharger, i will see if i can find out how it works. Maybe try and get some pics if i can.

Ahhhhh the POLO G40....I had one of those, stage 4`d from Jabba

Now the Dump valve on those came off the outlet of the G-Lader charger, but I remembered the lads at Jabba doing some checking , and it wasnt really worth the hassle and time of welding the thing on. I cant see the point of dumping to atmosphere with a charger if it makes no difference but a noise ??? PPPSSSSSSTTTTT ???

chuntington101 · Nov 27th, 2007, 06:49 AM

Quote: Originally Posted by Cooper_si (original)

Ahhhhh the POLO G40....I had one of those, stage 4`d from Jabba

Now the Dump valve on those came off the outlet of the G-Lader charger, but I remembered the lads at Jabba doing some checking , and it wasnt really worth the hassle and time of welding the thing on. I cant see the point of dumping to atmosphere with a charger if it makes no difference but a noise ??? PPPSSSSSSTTTTT ???

was the throttle body after the 'charger???? thats the only way that you could see boost on a closed throttle. this is a BAD way to design a supercharger system as the losses are much bigger!

Chris.

Nov 19th, 2007, 01:10 PM	#1
P33 ULC MINI2 Newbie My Classifieds Join Date: Aug 2006 Location: Kilmarnock Local Time: 09:30 PM Posts: 34 Offline	Supercharged Cooper S with a Dump Valve vid!!! If you cant fit a dump valve/Blow off valve to a supercharged cooper S, how come this one has one???? Its not an R56 S, if you look at his video part 2, you can see its an R53!! And also for 250ps, doesnt seem that quick??!?! Is it maybe twincharged n thats why its dumping???! YouTube -...

Nov 19th, 2007, 05:48 PM	#2 (permalink)
minioneandrew MINI2 Regular My Classifieds Join Date: Sep 2006 Location: Ayrshire Local Time: 10:30 PM Posts: 323 Offline	....i recognise your face...... Technically its possible, bit it would be just like having a boost leak i think. Superchargedddddddddd!

Nov 19th, 2007, 06:25 PM	#3 (permalink)
MINI-Morgan MINI Obsessed... My Classifieds Join Date: Nov 2003 Location: Southampton, Hants Local Time: 10:30 PM Posts: 4,610 Offline	Twin Charge maybe?? Ummm how can you fit a dump valve to a supercharged car? other than a fake one ofcourse! In my mind there is no excess boost to release as the SC is after the throttle body. One Man, One Project......find out what happens next at MINIProject.co.uk For MINIs in the south it can only be South Coast New MINI Club

Nov 19th, 2007, 06:44 PM	#4 (permalink)
minioneandrew MINI2 Regular My Classifieds Join Date: Sep 2006 Location: Ayrshire Local Time: 10:30 PM Posts: 323 Offline	A modification to the bypass valve, to vent somewhere? In essence after i put on my cai, i can here, a whoosh (very quiet) wen i change gear, im assuming this is the bypass valve closing? Superchargedddddddddd!

Nov 25th, 2007, 05:25 PM	#12 (permalink)
Cooper_si the DASH LIGHT king ? ;) Join Date: Sep 2004 Location: Nr Melton Mowbray Local Time: 09:30 PM Posts: 512 Offline	Quote: Originally Posted by 300GP (original) sorry that car is not twin charged!! far too slow.. Ive got to agree with you on that statement. Ive seen vids from the states with ALTA twin charge kits that wheel spin in 3rd in the dry !!! so this cant be twin charged. Like most say theres prob a boost leak. There is a mechanical boost control valve under the RH intercooler horn but ive never heard this make a noise that loud. Whooo knows what the sound could be...... THE Legend who helps ALL MINI owners

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Nov 19th, 2007, 11:03 PM	#5 (permalink)
P33 ULC MINI2 Newbie My Classifieds Join Date: Aug 2006 Location: Kilmarnock Local Time: 09:30 PM Posts: 34 Offline	On 2nd look, that is definitely twin charged. Listen to the turbo spooling up in the first few seconds of him pulling away. And hence why the supercharger doesnt sound that loud (cos on the twincharge kit i believe you fit an enlarged pulley as opposed to a reduced one so the supercharger aint gettin stressed out)

Nov 21st, 2007, 06:32 AM	#6 (permalink)
chuntington101 MINI2 Regular Join Date: Jul 2007 Local Time: 10:30 PM Posts: 119 Offline	Quote: Originally Posted by P33 ULC (original) On 2nd look, that is definitely twin charged. Listen to the turbo spooling up in the first few seconds of him pulling away. And hence why the supercharger doesnt sound that loud (cos on the twincharge kit i believe you fit an enlarged pulley as opposed to a reduced one so the supercharger aint gettin stressed out) on a twincharged engine you would want a dump valve on there (post turbo pre throttle body). it will help the turn spool (well actually stop it form stalling). most twincharged guys run stock pullies. if you where to spin the stock supercharger slower i dont think htere would be much point in keeping it on there. lol Chris.

Nov 22nd, 2007, 08:10 AM	#7 (permalink)
P33 ULC MINI2 Newbie My Classifieds Join Date: Aug 2006 Location: Kilmarnock Local Time: 09:30 PM Posts: 34 Offline	Alta Mini Performance - Supercharger Pulley Oversized Supercharger Pulley Oversized Sold exclusively for custom S/C and twin charged applications. Stainless steel construction guarantees a lifetime of durability and performance.

Nov 22nd, 2007, 11:17 AM	#8 (permalink)
MiniOneSam BBMC 003 My Classifieds Join Date: May 2007 Location: Milton Keynes, UK Local Time: 10:30 PM Posts: 850 Offline	Unless he has a Turbo from GTT in it maybe?

Nov 22nd, 2007, 12:01 PM	#9 (permalink)
P33 ULC MINI2 Newbie My Classifieds Join Date: Aug 2006 Location: Kilmarnock Local Time: 09:30 PM Posts: 34 Offline	Quote: Unless he has a Turbo from GTT in it maybe? Can still hear the supercharger though

Nov 22nd, 2007, 12:59 PM	#10 (permalink)
V 5ARY FEELIN`THE`BURN!! My Classifieds Join Date: Jun 2005 Local Time: 10:30 PM Posts: 802 Offline	sorry that car is not twin charged!! far too slow..

Nov 23rd, 2007, 12:02 PM	#11 (permalink)
chuntington101 MINI2 Regular Join Date: Jul 2007 Local Time: 10:30 PM Posts: 119 Offline	Quote: Originally Posted by P33 ULC (original) Alta Mini Performance - Supercharger Pulley Oversized Supercharger Pulley Oversized Sold exclusively for custom S/C and twin charged applications. Stainless steel construction guarantees a lifetime of durability and performance. nice find! but its not going to spool the turbo up as fast as a stock one. Chris.

Nov 25th, 2007, 05:47 PM	#13 (permalink)
Tüls 450 BHP Join Date: Feb 2004 Location: Boost!! Local Time: 05:30 PM Posts: 89 Offline	Quote: Originally Posted by 300GP (original) sorry that car is not twin charged!! far too slow.. deffinetly too slow for a TC car... Quote: Originally Posted by P33 ULC (original) Alta Mini Performance - Supercharger Pulley Oversized Supercharger Pulley Oversized Sold exclusively for custom S/C and twin charged applications. Stainless steel construction guarantees a lifetime of durability and performance. While Alta does make the over sized pulley, it's really of no use... even with the stock pulley eventually the SC is in the way of the turbo, and if the SC was going any slower it wouldn't be able to take in the Turbo air fast enough. Most who have tried the over sized pulley have gone back to stock... I have also tried under driving the SC... while good it didn't allot the turbo as much boost... and there for you loose power... but was very linear compared to the stock pulley which drives more like a turbo car...

Nov 26th, 2007, 06:46 AM	#14 (permalink)
Cooper_si the DASH LIGHT king ? ;) Join Date: Sep 2004 Location: Nr Melton Mowbray Local Time: 09:30 PM Posts: 512 Offline	Quote: Originally Posted by Tüls (original) deffinetly too slow for a TC car... While Alta does make the over sized pulley, it's really of no use... even with the stock pulley eventually the SC is in the way of the turbo, and if the SC was going any slower it wouldn't be able to take in the Turbo air fast enough. Most who have tried the over sized pulley have gone back to stock... I have also tried under driving the SC... while good it didn't allot the turbo as much boost... and there for you loose power... but was very linear compared to the stock pulley which drives more like a turbo car... I knew you would know something along these lines.... THE Legend who helps ALL MINI owners

Nov 26th, 2007, 12:57 PM	#15 (permalink)
newyorkaddict The Second Coming........ My Classifieds Join Date: May 2007 Location: Exmoor, Devon Local Time: 10:30 PM Posts: 75 Offline	Quote: Originally Posted by MINI-Morgan (original) Twin Charge maybe?? Ummm how can you fit a dump valve to a supercharged car? other than a fake one ofcourse! In my mind there is no excess boost to release as the SC is after the throttle body. My friend has a Dump Valve on his Polo G40, that uses a supercharger, i will see if i can find out how it works. Maybe try and get some pics if i can.

Nov 26th, 2007, 05:29 PM	#16 (permalink)
Cooper_si the DASH LIGHT king ? ;) Join Date: Sep 2004 Location: Nr Melton Mowbray Local Time: 09:30 PM Posts: 512 Offline	Quote: Originally Posted by newyorkaddict (original) My friend has a Dump Valve on his Polo G40, that uses a supercharger, i will see if i can find out how it works. Maybe try and get some pics if i can. Ahhhhh the POLO G40....I had one of those, stage 4`d from Jabba Now the Dump valve on those came off the outlet of the G-Lader charger, but I remembered the lads at Jabba doing some checking , and it wasnt really worth the hassle and time of welding the thing on. I cant see the point of dumping to atmosphere with a charger if it makes no difference but a noise ??? PPPSSSSSSTTTTT ??? THE Legend who helps ALL MINI owners

Nov 27th, 2007, 06:49 AM	#17 (permalink)
chuntington101 MINI2 Regular Join Date: Jul 2007 Local Time: 10:30 PM Posts: 119 Offline	Quote: Originally Posted by Cooper_si (original) Ahhhhh the POLO G40....I had one of those, stage 4`d from Jabba Now the Dump valve on those came off the outlet of the G-Lader charger, but I remembered the lads at Jabba doing some checking , and it wasnt really worth the hassle and time of welding the thing on. I cant see the point of dumping to atmosphere with a charger if it makes no difference but a noise ??? PPPSSSSSSTTTTT ??? was the throttle body after the 'charger???? thats the only way that you could see boost on a closed throttle. this is a BAD way to design a supercharger system as the losses are much bigger! Chris.

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