MINI2

Jaw_F430 · Sep 15th, 2007, 12:20 PM

I have been reading through a few threads and seen people on their mods lists have a modified bypass valve and was just wondering what the advantage is with a modified bypass valve?

Regards

James

Cooooooperslad · Sep 15th, 2007, 02:03 PM

I believe its not really modified but just adjusted so the butterfly is closing properly and making the valve work to full effectivness, I think alot of them wont close/ open at 180 / 90 degrees

http://www.mini2.com/forum/engine-dr...ification.html

Jaw_F430 · Sep 15th, 2007, 07:35 PM

Quote: Originally Posted by Cooooooperslad (original)

I believe its not really modified but just adjusted so the butterfly is closing properly and making the valve work to full effectivness, I think alot of them wont close/ open at 180 / 90 degrees

http://www.mini2.com/forum/engine-dr...ification.html

I have just been reading this thread from the link cooperslad shown me and there is someone saying that 2005 cooper s have had the bypass valve corrected from the factory. Could anyone back this up or is it worth me checking mine? Roland would probably be best to answer this as he does this mod and may have come across a 2005 cooper s

Regards

James

ScottyBoy · Sep 15th, 2007, 07:40 PM

AFAIK Roland has said that 99% of cars hes had in for a conversion have needed there Bypass Valve Modified... although i may be mistaken.

I have also read that from 2005 onwards they were corrected but then i guess Roland will have worked on these at somepoint and they will have been corrected aswel.

Scott

lucachiarelli · Sep 15th, 2007, 08:28 PM

I had the bypass valve mod done to my 06 mcs. Must have needed it as i paid for it. Dont know if it makes a difference in performance on its own as i had the gtt manifold and lightened crank pulley at the same time. Definiteley felt a difference with all three mods

Sep 15th, 2007, 12:20 PM	#1
Jaw_F430 MINI2 Senior Join Date: Jul 2007 Location: 7600rpm Local Time: 10:35 PM Posts: 670 Offline	modified bypass valve I have been reading through a few threads and seen people on their mods lists have a modified bypass valve and was just wondering what the advantage is with a modified bypass valve? Regards James

Sep 15th, 2007, 02:03 PM	#2 (permalink)
Cooooooperslad MINI2 Senior My Classifieds Join Date: Apr 2007 Local Time: 10:35 PM Posts: 498 Online	I believe its not really modified but just adjusted so the butterfly is closing properly and making the valve work to full effectivness, I think alot of them wont close/ open at 180 / 90 degrees http://www.mini2.com/forum/engine-dr...ification.html Last edited by MINIAC : Sep 15th, 2007 at 07:21 PM. Reason: Merge consecutive posts

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Sep 15th, 2007, 07:35 PM	#3 (permalink)
Jaw_F430 MINI2 Senior Join Date: Jul 2007 Location: 7600rpm Local Time: 10:35 PM Posts: 670 Offline	Quote: Originally Posted by Cooooooperslad (original) I believe its not really modified but just adjusted so the butterfly is closing properly and making the valve work to full effectivness, I think alot of them wont close/ open at 180 / 90 degrees http://www.mini2.com/forum/engine-dr...ification.html I have just been reading this thread from the link cooperslad shown me and there is someone saying that 2005 cooper s have had the bypass valve corrected from the factory. Could anyone back this up or is it worth me checking mine? Roland would probably be best to answer this as he does this mod and may have come across a 2005 cooper s Regards James

Sep 15th, 2007, 07:40 PM	#4 (permalink)
ScottyBoy Obsessive Car Cleaner OCC My Classifieds Join Date: Jul 2006 Location: Thornaby NE Local Time: 10:35 PM Posts: 2,873 Offline	AFAIK Roland has said that 99% of cars hes had in for a conversion have needed there Bypass Valve Modified... although i may be mistaken. I have also read that from 2005 onwards they were corrected but then i guess Roland will have worked on these at somepoint and they will have been corrected aswel. Scott

Sep 15th, 2007, 08:28 PM	#5 (permalink)
lucachiarelli Banned My Classifieds Join Date: Aug 2007 Location: darwen Local Time: 10:35 PM Posts: 516 Offline	I had the bypass valve mod done to my 06 mcs. Must have needed it as i paid for it. Dont know if it makes a difference in performance on its own as i had the gtt manifold and lightened crank pulley at the same time. Definiteley felt a difference with all three mods

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