"Captain Retard" Member 1,417 Member For: 10y 9m 14d Gender: Male Location: Shellharbour NSW Posted 24/07/14 12:44 AM Author Share Posted 24/07/14 12:44 AM Thanks CHLAXN , the car is running nice and smooth.The reason I asked the above question is due to what seems to be a drop off in boost pressure according to the autometer gauge fitted.When I bought the car I'm sure it's boost was peaking at just over 5psi.It's now only going to 4psi and tapers off at higher revs.I've done the WD40 trick with the solenoid valve twice and noticed that the gauge would show up 2-3psi on mid throttle (where as before it didn't)The other question was that shouldn't the BA Typhoons boost to about 8psi ?Like I said the car runs smooth, idle is good etc.I'm just trying to figure out if the solenoid valve or waste gate actuator or both are the issue.My only other thought is the gauge is giving me a false reading.Thanks again. Link to comment Share on other sites More sharing options...
Wilko16 Donating Members 1,672 Member For: 17y 2m 26d Gender: Male Location: Melbourne Posted 24/07/14 02:19 AM Share Posted 24/07/14 02:19 AM Are you certain you don't have any boost leaks? Nice clean air filter ? Simple things first Link to comment Share on other sites More sharing options...
"Captain Retard" Member 1,417 Member For: 10y 9m 14d Gender: Male Location: Shellharbour NSW Posted 24/07/14 02:29 AM Author Share Posted 24/07/14 02:29 AM I'm at work killing time but off tomorrow and will start looking at things.Good point with the filter, it looked OK a month ago but will inspect again.Might replace it just to be sure.Cheers! Link to comment Share on other sites More sharing options...
Wilko16 Donating Members 1,672 Member For: 17y 2m 26d Gender: Male Location: Melbourne Posted 24/07/14 04:35 AM Share Posted 24/07/14 04:35 AM It wouldn't block up in a month haha unless there is a bird or small child in there Link to comment Share on other sites More sharing options...
"Captain Retard" Member 1,417 Member For: 10y 9m 14d Gender: Male Location: Shellharbour NSW Posted 24/07/14 05:08 AM Author Share Posted 24/07/14 05:08 AM When I bought the car I had a quick look at it and it's been really dusty around here the last few weeks with all these westlys( my pool is full of dirt)Just got me thinking that's all, I like simple solutions!Like you said its worth a look. Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 7m 15d Gender: Male Posted 24/07/14 02:39 PM Share Posted 24/07/14 02:39 PM The basics of it are that the spring in the actuator is aided by the air that's feed to it. So the spring should hopefully be strong enough to hold to a certain level then add the air to open it up and control the boost.Also how quick it allows boost to bleed back out, hence interrupter style solenoids Link to comment Share on other sites More sharing options...
"Captain Retard" Member 1,417 Member For: 10y 9m 14d Gender: Male Location: Shellharbour NSW Posted 25/07/14 04:17 AM Author Share Posted 25/07/14 04:17 AM (edited) LOOK WHAT I FOUND !!!Checked all the vacuum hoses today and down at the back of the engine found the above.It's a T junction for the boost gauge and BOV. It was totally perished and crumbling apart.I'm surprised the gauge read at all !When I bought the car about a month ago it was reading just over 5psi at WOT on the gauge.Lately that dropped to 4psi.Now with it fixed I'm getting 8psi on the gauge and then it drops to about 5-6psi as revs rise.As this T junction is between the inlet manifold and BOV it may have affected the BOVs performance a bit.Sadly the cars performance seems about the same LOL !Checked the air filter and it looks pretty dirty so I'm going to order a K&N filter now.When I get a chance I will remove the heat shield and have a good look at the rest of the lines. Also will remove the front bumper for a minor repair and check the rest of the hoses.Thanks for the help WILKO !I know my way around pre-80s engines pretty well but these modern engines have bloody lines everywhere LOL !!!! Edited 25/07/14 04:19 AM by Tex Scrotum rides again Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 7m 15d Gender: Male Posted 25/07/14 04:47 AM Share Posted 25/07/14 04:47 AM Paper filter is just as good and far cheaper my opinion Link to comment Share on other sites More sharing options...
"Captain Retard" Member 1,417 Member For: 10y 9m 14d Gender: Male Location: Shellharbour NSW Posted 25/07/14 05:23 AM Author Share Posted 25/07/14 05:23 AM HOLD THE BOAT !!!Just checked the part number on the air filter already in the car, it's a FRAM AIR HOG.So it's reusable ..... Cheering !!!At first glance it looked like a K&N that's why I sussed it out.Never heard of FRAM but it looks pretty good.... Any thoughts???I've used K&N on my bikes and cars for years.They end up paying for themselves pretty quickly especially if you keep your cars as long as I do ! Link to comment Share on other sites More sharing options...
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