john keskes
Member
- Joined
- Dec 29, 2012
First Time at Track for both me and my car
- Thread starter Joeld
- Start date
As I said in my last post,you were lean and it was time to add the regulator.You posted O2 numbers of .695 and .742. Those numbers are very lean and seem to be erratic based on the order they were recorded. You added more boost without raising the fuel pressure and noted a .702 O2 number. This is still very lean. It's extremely lean,if you noted this number as soon as you went WOT. The number you want to see,when you first go full throttle is something over .800. The standard number to shoot for is .780,but that is after a full quarter mile run going through the traps. Turn the boost back down. Check your blm number at idle. If it's high,look for a leak. Then check for a one to one rise in fuel pressure. You have a fuel delivery problem.
Incorrect. It doesn't change the duration of on time of the injector,but the extra pressure pushes more fuel through the nozzle while the injector is open. The motor gets more fuel. It will still rise one to one,but you'll start at a higher number and rise one to one up to a higher number.
It's an "adjustable" pressure regulator and that means you can use it to control the amount of fuel the engine receives.
Lol, ok i left out the "adjustable" part.
Thank you sir
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i spent a bit of time on the car tonight
i unplugged the ecm wire for a bit while i looked around the motor for loose hoses and the like. then started her up and drove around the block. still running like crap. i sat and idled and noticed the bl going from 117 to 140 and then back again. did this 4 or 5 times and then settled at 117. i had been 128 before regulator.
i unplugged the ecm wire for a bit while i looked around the motor for loose hoses and the like. then started her up and drove around the block. still running like crap. i sat and idled and noticed the bl going from 117 to 140 and then back again. did this 4 or 5 times and then settled at 117. i had been 128 before regulator.
It's pulling fuel to compensate for the extra fuel pressure and thus pulling your BLs down to indicate such. I'd say you're still close enough though, almost within 10 of 128.
gunslinger
Member
- Joined
- Nov 21, 2005
You need to put your TT chip in. The factory chip has too much timing to run 17psi.
Even with my TT chip, at 17psi I was getting .5-1 degrees of knock.
As far as the rough idle goes, check to see if there's a piece of carbon in stuck in the EGR valve. The added boost and knock may have been enough to knock some loose.
I'm planning a trip back to the track next week if you're interested in going.
Stock squirters should be fine for his goal, might need cleaned tho
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I dont under stand why the chip has not yet been installed my self. He said he was trying to prove a point, and i told him its been done. Point proven, put that chip in or setting for less with the stock fpr back on
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He's wanting to see,for himself,if he can run 17 lbs of boost with the stock chip and today's 93 octane. He hasn't done it yet,so the point hasn't been proven. According to we4Mateo and ZNix,this has not been done because it is impossible. We'll see. Joel works 23 hours/day and 364.5 days per year. The rest of his time is open for family and his car. As you can see,it takes him a long time to get any single thing done to his car.
