what could be wrong?
what could be wrong?
Well this morning i'm driving and noticed when i hit full boost, power dies for a split second then picks right back up (3rd, 4th, 5th gear merging in interstate). Car is stock (30k miles) except for a boost gauge and my HKS cat back. Also this morning i just filled the tank up with gas (Cheveron PRemium). Could it be bad fuel? I pay pretty close attention to my car and just noticed this today. So i'm hoping fuel is the case....input?
Originally Posted by rExTuHfEr
Well this morning i'm driving and noticed when i hit full boost, power dies for a split second then picks right back up (3rd, 4th, 5th gear merging in interstate). Car is stock (30k miles) except for a boost gauge and my HKS cat back. Also this morning i just filled the tank up with gas (Cheveron PRemium). Could it be bad fuel? I pay pretty close attention to my car and just noticed this today. So i'm hoping fuel is the case....input?
1) Put it in 5th gear at 2000rpm (whatever speed that is)
2) Floor the accelerator (WOT)
3) When the boost starts to build (3000rpm or so in 5th), watch the RPMs
4) If the RPMs jump up faster than you're accelerating, then drop back down and the car pulls again, your clutch is slipping.
This happens, because that is the point at which you hit peak torque. Torque is what causes the clutch to slip. You wouldn't notice any slipping at peak HP (6800rpm), because torque is much lower.
Originally Posted by Warrtalon
Sounds like a slipping clutch. Do this test:
1) Put it in 5th gear at 2000rpm (whatever speed that is)
2) Floor the accelerator (WOT)
3) When the boost starts to build (3000rpm or so in 5th), watch the RPMs
4) If the RPMs jump up faster than you're accelerating, then drop back down and the car pulls again, your clutch is slipping.
This happens, because that is the point at which you hit peak torque. Torque is what causes the clutch to slip. You wouldn't notice any slipping at peak HP (6800rpm), because torque is much lower.
1) Put it in 5th gear at 2000rpm (whatever speed that is)
2) Floor the accelerator (WOT)
3) When the boost starts to build (3000rpm or so in 5th), watch the RPMs
4) If the RPMs jump up faster than you're accelerating, then drop back down and the car pulls again, your clutch is slipping.
This happens, because that is the point at which you hit peak torque. Torque is what causes the clutch to slip. You wouldn't notice any slipping at peak HP (6800rpm), because torque is much lower.
tried it. clutch is fine....
Evolved Member
Joined: Mar 2004
Posts: 1,635
Likes: 3
From: Butt**** Nowhere
any codes? Has it done it since then? I would take a good thorough look of the entire engine bay, tracing all hoses, clamps, etc. Power loss if usually attributed to a FUEL problem first, then AIR. But don't rule out things such as a probable lose vacuum hose, sensor, etc.
