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Banjo Bolts?
I was doing some research on better understanding how the 951 system works, and, in reading about Lindsey's "Boost Enhancer", it recommended that if one has the "Banjo Bolt," the Boost Enhancer will work most properly with the stock bolt reinstalled.
What is a Banjo Bolt and how do I know if I have one?
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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09-20-2006, 06:12 AM
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Registered
Join Date: Mar 2002
Location: Indianapolis, IN
Posts: 654
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The banjo bolt screws into the intercooler pipe that goes from the turbo outlet -> intercooler. It is often replaced with a jetted banjo bolt that is included in some aftermarket chipsets. The new banjo bolt alters the signal to the wastegate and allows ~15psi.
If your car is stock it will have the factory banjo bolt, if it has been chipped than it may have a jetted banjo bolt. You just need to remove thte bolt and visually inspect it, also check the DME/KLR for aftermarket chips. Installing the LBE takes about 5 min... What is the factory boost gauge reading under full boost?
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1986 951 1995 M3 LTW 1995 Esprit S4s 2015 328d |
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09-20-2006, 07:26 AM
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Under full boost it seems to go all the way to 2 bar
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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09-20-2006, 10:36 AM
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Registered
Join Date: Mar 2002
Location: Indianapolis, IN
Posts: 654
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2 bar on the gauge is ~14.7psi (Im sure you know 2 bar on the gauge is really 1 bar of boost as the 1 bar on the gauge is atmosphere or really 0psi in turbo pressure.) kind of confusing, but wanted to make that clear...
Anways, if the gauge goes all the way to 2 bar then you may already have aftermarket chips as usually it should read roughly 1.65-1.75 bar or so if stock. Pull the dme and check the chips, also I would recommend throwing in a boost gauge of your choice as they are more accurate and easier to read. G/L
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1986 951 1995 M3 LTW 1995 Esprit S4s 2015 328d |
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09-20-2006, 11:01 AM
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Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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First rule in 951 ownership.
Don't trust the stock guage..... Find someone who has a guage........ t-into the vacuum hoses and run the hose into the car and verify the readings. Carefull with anything that will increase boost without altering fuel and timing.
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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09-20-2006, 11:02 AM
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2007 Porsche Cayman S
The Viridian Falcon
SOLD! -- The Purple Pig
SOLD! -- Mighty Mouse
SOLD!! -- Alpine Wolf
