milenkogt Posted August 9, 2008 Report Share Posted August 9, 2008 Hey all, Finally got around and installed a garret boost guage today. At idle and under decel it holds a perfect 10lbs vacuum. Under WOT full boost is only 11-12psi, but thats because my IAT sensor is mounted wrong, and i have some CELs causing the engine to run a lil rich and retard timing...''safe mode''. Install was straight forward, took around 30mins...mainly to run pressure line to guage inside car. Here are some pics Boost guage T fitting another pic of the T fitting Garret 52mm Boost Guage Engine bay pic My 99 milly S Quote Link to comment Share on other sites More sharing options...
enginph Posted August 9, 2008 Report Share Posted August 9, 2008 Great! When you floor it at full stop, at what rpm does it peak? After a full rest, and after s/c is spinned first to give initial momentum? We need a vid.. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 9, 2008 Report Share Posted August 9, 2008 son of a bitch, I'v been waiting so long for someone to post where you hook it up also, the only person I'v seen with a boost gauge was an almost brand new 02 S, in first gear it should be 7psi, and 14psi in all others perhaps a boost gauge is a good way of knowing if the s/c is going out before there is smoke? Quote Link to comment Share on other sites More sharing options...
milenkogt Posted August 9, 2008 Author Report Share Posted August 9, 2008 son of a bitch, I'v been waiting so long for someone to post where you hook it up also, the only person I'v seen with a boost gauge was an almost brand new 02 S, in first gear it should be 7psi, and 14psi in all others perhaps a boost gauge is a good way of knowing if the s/c is going out before there is smoke? I do have a technical question for all you gurus.... i know on most boosted cars when the IAT senses inlet temps getting really hot then the ecu will pull timing only. My question is since the miller cycle engine boost is controlled by the ECU, when there is a problem with the inlet temps getting hot or running too lean will the ECU tell the ABV to vent a certain amount of boost? Because i floored it and yes it went to 7psi in first gear but only 12psi in other gears, i don't think i have any leaks as the car drives great. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 9, 2008 Report Share Posted August 9, 2008 how many miles are on your car? as far as I know its a combination of the ecu and a few sensors, but because the MCE doesn't work like any other supercharged car its a bit different. I do know that the ecu seems to have final say, or atleast a safety system. on the same millenia, again years ago we got one of those "40hp, 15mpg" chips off ebay for like 10 bucks, on the 2.5 it decreased mileage and didn't seem to add anything, but on the S it was a different story, the entire car went into some kind of protection mode, it would idle, but if you gave it any gas it would only go to 1500rpms then cut off. removed "chip" and it was fine Quote Link to comment Share on other sites More sharing options...
latinopikachu Posted August 9, 2008 Report Share Posted August 9, 2008 now the task remains of deghettifying the install Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 9, 2008 Report Share Posted August 9, 2008 almost any autoparts store will have t-fittings, just get the right one, and most boost gauges come with there own vacuum line (about 6ft) so it should be fine. Besides, the thing is hidden under the MCE cover anyway Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 9, 2008 Report Share Posted August 9, 2008 I'm with Lat on this one, if you're going to modify something, do it so it doesn't look modified. A black or white stock 't' or 'y' fitting along with black rubber hose, and route it so it goes under the intercooler duct. As for your question, that's a good one...I can't help on that one. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 10, 2008 Report Share Posted August 10, 2008 easier enough to do, I think the pic was just to show it, the t-fitting would be hidden under the engine cover, then route the vacuum line so its hidden, through the firewall and up the a pillar. Quote Link to comment Share on other sites More sharing options...
enginph Posted August 10, 2008 Report Share Posted August 10, 2008 What happens if one hose disconnects under 12 psi pressure? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 10, 2008 Report Share Posted August 10, 2008 then you know if bought a crappy fitting or hose, the factory hose doesn't pop off, use a screw down connector. Quote Link to comment Share on other sites More sharing options...
enginph Posted August 10, 2008 Report Share Posted August 10, 2008 The left connection does not look healty. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 10, 2008 Report Share Posted August 10, 2008 geez, cut the guy a break, millenia installs are not cut and dry, trial, error, error, error, error, then success. Justuse a smaller fitting and get some clamps Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 10, 2008 Report Share Posted August 10, 2008 We're not criticizing, just offering advice, and both of us are offering sound advice. Saint's right, that hose looks like it's going to blow off the fitting at any moment. Doing it right will prevent problems down the road. If he just burries the connection the way it is, in a short period of time he'll be digging it back up to fix the vacuum leak that will develop. Quote Link to comment Share on other sites More sharing options...
milenkogt Posted August 10, 2008 Author Report Share Posted August 10, 2008 We're not criticizing, just offering advice, and both of us are offering sound advice. Saint's right, that hose looks like it's going to blow off the fitting at any moment. Doing it right will prevent problems down the road. If he just burries the connection the way it is, in a short period of time he'll be digging it back up to fix the vacuum leak that will develop. its all good guys, that was a trial install anyway just to show yall a good accessible vacuum point on the manifold. i'm not going to leave plastic tubing laying over the manifold, and i'm goin to reroute everything so it looks cleaner and its out of harms way which is heat. Also going to man handle the hoses on the fittings better. i still have to wire the gauge so i can get it to illuminate. thanks for the advice tho guys. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 10, 2008 Report Share Posted August 10, 2008 wiring the gauge itself should be simple, just connect directly into the marker lights, I'm not sure if you need power all the time, I think the needle itself is dependant only on the vacuum, but this may vary. Biggest thing is a vacuum line designed for under the hood and keeping it away from anything that could melt it. Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 10, 2008 Report Share Posted August 10, 2008 If you use the marker lights you won't be able to dim the gauge. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 10, 2008 Report Share Posted August 10, 2008 ? and why would you need to be able to do that? no lighting during the day, lite at night, I only run with full illumination of my gauges in all my cars at all times Quote Link to comment Share on other sites More sharing options...
latinopikachu Posted August 10, 2008 Report Share Posted August 10, 2008 i was going to bridge the dimmer connection, remove the switch and just put a blank in that spot, the lights hsould never be dimmed Quote Link to comment Share on other sites More sharing options...
enginph Posted August 11, 2008 Report Share Posted August 11, 2008 ? and why would you need to be able to do that? no lighting during the day, lite at night, I only run with full illumination of my gauges in all my cars at all times I adjust it such that day and night looks the same brightness. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 11, 2008 Report Share Posted August 11, 2008 what brightnass though? your gauges shouldn't be on in the daytime, there is a big ass light in the sky that does a pretty damn good job. My gauges are only on at night, at which point there all on full Also keep in mind that most gauges don't dim to begin with Quote Link to comment Share on other sites More sharing options...
enginph Posted August 11, 2008 Report Share Posted August 11, 2008 Oh i got the point now. On 01-02 gauge lights are always on as you know. At full they are hella bright for night. Consider they are still visible even when sun shines on them. I dont care that much about other lights, they are out of my vision. And you have LEDs, are they dimmer than bulbs? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 11, 2008 Report Share Posted August 11, 2008 ah, nevermind forgot about the 01-02, even though during the day they don't seem lite. Quote Link to comment Share on other sites More sharing options...
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