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Registered
Join Date: Aug 2010
Location: Kansas City, MO
Posts: 540
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Try to fix one problem find another
It looks like the good old cycling valve has two busted nipples on it. Not good. Now I think these are expensive but I'm not really sure. Should I even replace this with another one or just get a MBC and set it to 10 PSI?
What is the cheaper route and would an MBC work with a stock setup. I am 99% stock minus K&N Cone filter.  
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09-28-2010, 07:24 PM
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On Boost
Join Date: Dec 2009
Location: Melbourne, AUS
Posts: 398
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IMO while you're underthere buy this VENTURI DELETE at LINDSEY RACING - Your Porsche Performance Parts Center
and replace all the hoses and delete the venturi! you can go to a MBC but im not sure if it will give you the same protection with the KLR
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86 952 GTX3076R, M-Tune, eBoost 2, CEP/JME cam, CEP head. |
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09-28-2010, 07:35 PM
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Registered
Join Date: Aug 2010
Location: Kansas City, MO
Posts: 540
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I am doing the venturi delete and replacing all the vacuum lines. Trust me I don't want to do this job again.
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09-29-2010, 06:32 AM
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On Boost
Join Date: Dec 2009
Location: Melbourne, AUS
Posts: 398
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yeah! if you get stuck i have a vaccum diagram i just posted up, it might help a little.
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86 952 GTX3076R, M-Tune, eBoost 2, CEP/JME cam, CEP head. |
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09-29-2010, 06:43 AM
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In the Fires of Hell.....
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You can usually find one used from a member here or Fleabay for not too much.
Going with the MBC will allow you to delete the Cycling Valve, but as Pauly said, you are taking one of the safety mechanisms out of the system if you experience pinging. Good luck with your decision.... Keith
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PCA Instructor: '88 951S - with LBE, Guru chips, 3Bar FPR, 1.3mm shimmed WG, 3120 lbs, 256 RWHP, 15 psig boost |
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09-29-2010, 08:19 AM
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Registered
Join Date: Jan 2005
Location: In a dumpster behind Albertson's in Los Angeles County
Posts: 2,132
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a new timing (cycling) valve is available here from pelican parts, p/n 951-606-117-00-M100, and costs $116.50.
While MBC is available from say Lindsey Racing for about $65.00 as mentioned, it does remove a safety feature from your system. IMHO, unless you are running a modified engine or turbo or doing track work, I'd stick with the timing valve.
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1989 944 NA Glacier Blue - SOLD IT 1989 944 S2 Alpine White T-Boned (totaled) by a lady dressed in a CLOWN costume (RIP  ) Apr 89 - Mar 081988 944 Turbo S Silver Rose Metallic, K27/6, Vitesse MAF, Tial 38mm DP WG Semper Fi |
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09-29-2010, 10:07 AM
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On Boost
Join Date: Dec 2009
Location: Melbourne, AUS
Posts: 398
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86 952 GTX3076R, M-Tune, eBoost 2, CEP/JME cam, CEP head. Last edited by nize; 09-29-2010 at 12:18 PM.. Reason: fixed link |
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09-29-2010, 10:40 AM
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944 Turbo
1988 Porsche 944 Turbo S Limited Edition
