2G Engine louder at high rpm

[SmgHunter]

When I'm around 6000 rpm my engine sounds like I'm at 7000 rpm like when your close to redline. It also feels that its losing most of its power and I lose about 5 psi of boost. My vacuum at idle is 19-21 in/hg and there are no apparent misses at idle. Does this seem like a bent valve or timing being pulled?

 

[Cooper-97gst]

What's type of noise is it making? Could you describe it a bit more? The Lack of power and drop of pressure sounds like it's just the t25 running out of breath.

 

[shakeandbake]

Yeah I'm confused about this sound difference between 6k and 7. Personally it sounds the same to me.

 

[SmgHunter]

Like when your approaching redline and how it gets higher pitched.... Kinda like its gonna blow. The power drop off starts around 4500 rpm but by 6k you really feel it. Like the car just falls on its face. My trigger plate is rubbing on the crank position sensor and makes a pretty audible tick sound so I was thinking the knock sensor is picking up some phantom knock maybe

 

[thejollyrancher]

That's definitely possible, would not explain the noise though

 

[SmgHunter]

My vacuum is normal so I'm assuming (and praying) that I didn't bend any valves cause the head has like 10k on it

 

[SmgHunter]

That's definitely possible, would not explain the noise though

I also no longer have a balance shaft belt, maybe that's why it seems a bit buzzier

 

[thejollyrancher]

Your cel will flash if any significant knock is picked up though. Is that happening?

 

[SmgHunter]

Your cel will flash if any significant knock is picked up though. Is that happening?

My cel doesn't work

 

[SmgHunter]

The idle is also very smooth, almost too smooth

 

[thejollyrancher]

I can't see a mod list on your profile. Can we get one? When did this problem start? What's the last thing you didbefore it ran this way?

 

[SmgHunter]

I have a mod list. What happened was my balance shaft belt broke, broke my crank sensor, bent my trigger plate, and set my timing off a tooth. Replaced my crank sensor, reset timing and left the balance shaft belt off so I don't have to deal with it anymore. Started the car and took it for a cruise and had power up to 4500 rpm then you could feel it smoothly fall off until I got to 6000 rpm. After 6000 rpm it seems really buzzy and rpms don't want to climb very much but would climb to 7000. I haven't drove it anymore since that. Forgot to also mention that while cruising if put in neutral or push in the clutch it will stall or try to stall. I let it idle for about 5 minutes then it just died and had trouble restarting. Let it sit for awhile and it would start right up.

 

[SmgHunter]

If you can't see the mod list I'm running the stock ecu, only major upgrades are fmic, afpr. I also have a narrowband, boost gauge and voltmeter

 

[SmgHunter]

Bump

 

[1G Eclipse94928]

My cel doesn't work

No one can help you online if you don't help yourself honestly.
Btw why would you say narrowband is a mod? what do you mean? Do you mean wideband?

 

[SmgHunter]

No one can help you online if you don't help yourself honestly.
Btw why would you say narrowband is a mod? what do you mean? Do you mean wideband?

It is a narrowband gauge, which is useless I know. I think I'm on to something though. I adjusted the BISS improperly which I think is what is giving me my stalling at idle issue