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get yourself a quality electronic boost controller. if you can't swing a new one ebay is your friend. Ray

simple... wire it for power from a 30amp relay with a switched lead off of the ignition - always on. Ray

the wastegate still absolutley matters. in this application your wastegate is not replaceable. if you want to modify your wastegate you need to remove the turbine housing and physically grind a larger opening. I used to do this on FC rx-7's and replace the head on the wastegate arm with an...

i'm not familiar with the tuning interface of the split second unit, most of my piggyback work has been with the apexi safc and greddy e-manage units. my understanding was that the piggy back systems all used the outputs from the factory ecu and modified the signals to the injectors. this is...

That is because reverse is a straight cut gear. unlike the forward gears which are helical. They are cut this way for a number of reasons. angled gears give a larger surface area for the gears to mesh and by their nature they have more of a scissor action on each other rather than a slapping...

it's only taking fuel out if the number is negative. I believe what you are seeing are the numbers in ADDITION to stock fuel trims. it's still adding a crap-load of fuel at 15psi but so is the factory fuel map. see the attached diagram for a reference. this diagram is by no means a tuning...

Like i said, spray it down with a garden hose - the cold water out of the hose will transfer orders of magnitude more energy away from from the condenser/radiator assembly and the temps should plummet in the cabin. You can also install a pusher fan in front of everything to see if that changes...

did you tune your ssafc? check the settings under the 15psi load range. i'll bet the injector mS value is through the roof compared to say... 10psi. just compare the values. post the MAP in here and let us take a look at it Ray

might actually be just a release bearing. don't rule out the cheap parts :-). try changing out the fluid with a synthetic royal purple or other high quality fluid. if the noise goes away or diminishes then you likely have worn bearings and gears in the trans. not the end of the world, just know...

sounds more like fuel delivery or timing issues. more info is needed. can you get us AFR readings while this is happening? do you have a wideband hooked up to it? do you have a boost gauge hooked up to it? if you know that you have a boost leak then this is almost certainly a place to start...

"boost" builds for a number of reasons. in this case i believe it is building because your wastegate can't keep up with the airflow being generated on the exhaust side. the wastegate controls the flow of exhaust gas that is allowed to BYPASS the turbine side of the turbo. if the flow gets too...

get it up to temp and spray the condenser with a hose. if the temp drops at the vents then you likely have an efficiency problem with the system. This may also be a deeper problem. Get the full report on the compressor pressures for the low side AND the high side. this can help you diagnose a...

check the plugs and wires. look for any signs of fouling or poor burn characteristics. Make sure the pump is wired properly and make sure your injectors aren't leaky. does the starting issue change if the car is warmed up to temp or cold? cold start adds fuel to the mix and if you have other...

Whoa... sorry for the bad taste i must have left. I certainly didn't mean to suggest everyone on here abandon their tools and bring their cars to the nearest hack of a mechanic and drop it off for the day. I meant to suggest that a trusted mechanic can be a better resource than just about any...

just noticed the mods in your sig. did you tune the car or did you buy it that way? the 10:1 afr at 15psi is the result of someone tuning a safety net with your ssafc. it is going that rich to keep you from leaning out and detonating. i believe the rich code is a result of readings taken in...

extensa is a touring tire, don't expect razor sharp response. The Bridgestone RE760 is a good tire but I would suggest the Bridgestone Potenza 960AS Pole Position as a DD tire. a bit pricey but a PHENOMINAL tire. I have them on my wife's RX8 - LOVE them. Bonus is 40K mile warranty! Ray

after hitting a pothole be sure to check the spring perch or chassis mount. i'd also suggest checking the lower control arm and bushings. Last place to check is a frame shop. Most body shops that specialize in insurance repair will be able to check your frame. it may need a tweak after taking a...

how are you measuring your afr's? with a true dedicated wideband or just tapping into the factory o2 sensor? a rich condition can be caused by several things. Any time you get into diagnostic work it helps to have as much data as possible. what are your long and short term fuel trims. what is...

I manage a tire shop and deal with this every day. First step is to get the wheels/tires on a balancer. idealy it would be a road force balancer. it will cost extra to have your tires road force balanced but this will certainly reveal ANY vibration due to imbalance, out of round, or otherwise...