[linkjones]

I have a 99 Box and I added the powerflow cold air intake and power intake plenum (available from ************************************************************) this winter I plan on chipping it, updating the suspension and cooling system (GT3 center rad and bumper) along with the below that I'm wondering if anyone has done.

Has anyone added any of the following:
Adjustable fuel pressure regulator?
Aux Oil cooler & stat?
Silicon hoses (Samco)?

Since I added the two above mods I've been experiencing some cooling system issues so I've been doing some research trying to find the root cause and am looking for some feedback. One of the interesting things I found was when increasing HP the fuel pressure regulator needs to keep up, if it doesn't the engine runs slightly lean causing the engine to heat up more than normal, in the event of a failed or failing FPR this is definately the cause along with poor fuel economy, sluggish throttle response etc. So, that got me thinking that if the engine is going to run hotter than normal during normal conditions when I'm really leaning on her she's going to heat higher than normal.

I know that Porsche engineers will have a safety factor considered when designing the cooling system but given age that factor decreases and plastic/rubber breaks down. Higher heat also equals higher pressure which I think may be the reason why my car will puke coolant out after a hard drive.

I'm rambling a bit but I'm looking for some feedback, one thing I did notice was a lot of people here are having problems with their cooling system and I'm wondering what the probability that it's performance upgrades that are the root cause.