Hi guys, need your help... I've tried everything....

So I started this project about 1 months ago, asked a lot of questions on here that helped a lot. I put on the following:

ATI Procharger supercharger, GT MAF, Walbro 255 LPH fuel pump, Deatschwerks 600cc injectors, NGK Iridium IX spark plugs (1 step colder), Kinetix V+ Plenum.

I dyno it last week and it wasn't gaining any horse power, it was actually showing less hp than a stock Z. I also noticed that at a idle it stays at 1000 rpm than drops for a while an spudders than goes back to 1000 rpm again.

Is this a vacuum leak? Bad coil pack? At this point I know it's something simple. The tuner dyno it were I can at least start the car but then it's having rpm issues plus it's not gaining any hp on the dyno?

Has anyone experienced this, cause I'm out of ideas already.

 

sounds like either one of the charge pipes has blown off or really bad tune... do you have a boost gauge and are you seeing boost at all?

 

Is this hooked up wrong?

 

........

 

no that shouldnt affect this. I do see another problem which may affect it. I had this issue; in the pic it looks like the teeth are worn on the pulleys. if even down by .5mm it will cause the belt to skip teeth and not make any boost. If all the piping is good then that could be the issue if theres 0 to little boost.

 

I know for sure it ain't the tune ( he couldn't finish with the car like that), no boost gauge but on the dyno it was blowing of the extra boost at high rpm's.....just wasn't gaining any hp, an it was idling rough, the rpm jumps slightly then drops slightly

 

without a boost gauge reading boost at the plenum it makes things more difficult. if the belt is slipping it will make some boost but not at high rpm but youd only really see it with a boost gauge, or at high rpm with the hood open the belt looks like its flailing a bit.

 

I'm thinking the charge pipe may have blown off? Are these signs with no charge pipe attached? Why?

 

I had my charge pipe fall off and I coudnt tell untill I took of my bumber. It ran fine just now power when I hit the gas.

 

if it was running good and is now running badly and no power maybe you blew something if nothing else changed.

 

Before mine blew it was making the same power at 8psi as it was 12 psi. Drain your oil in something that will allow you to look for metal shavings.

 

Sorry I think u guys misunderstood my issue with the car. The car never ran good since the setup was installed. At first it was running on 5 of 6 injectors on the dyno cause the injection connections were bad. Once I got new injectors/connections (the Deatschwerks 600cc) it idle slightly rough off and on an didn't produce any horse power on the second dyno. At that point I change the spark plugs to some that are a step cooler than stock an gap them at .035

It still has the same issue, very frustrated at this point.

I'm now looking at the ati procharger supercharger manual an I see that there is a pipe called a inter cooler discharge tube. I don't think I got that with the used setup I bought from a forums member. My question is what is a intercooler discharge tube? I have a blowoff value....would I have these issues without a intercooler discharge tube?

 

Does your procharger connect to you fmic, and your FMIC to your plenum? You would know if you was missing a pipe I would hope!! Does your vehicle start normaly or do you need to hit the gas to start it up? Its sounding like either something in your inital tune or you didnt connect something correctly. Is your MAF connected?

 

Procharger is connected the the fmic and yup to the throttle body to the plenum. Vehicle starts fine on the first turn of the key, no problem. I know the tuner couldn't finish the tune cause of the issue and left it capable enough for me to drive home. MAF is connected properly. Your right maybe something isn't connected right...I'm gonna run thru everything again. I know it's something small. Cause at idle it stays at 1000 rpm then drops slightly an spudders then goes back up to 1000 again. The tuner did say that I'll know it's fixed (whatever it is) when it idles properly. I was almost certain it was the plugs but wasn't.

 

Update: I took the car to autozone to get it checked. It came up with 3 misfires. Now since the spark plugs are new, is the only other thing the coil packs causing the multi misfires?

My question is the car has 82,000 miles on it. Coil packs were never changed but seemed fine when the car was stock. What are the chances that the coil packs go bad with the supercharger install?

Sorry for the frustration guys, but I'm really cautious bout spending $300 more dollars on coil packs an having it not fix the problem after

Also the old spark plugs I took out yesterday were really blacken.

 

Their are far more reasons for a misfire than just a bad plug or bad coil.

1. Wiring and or connector not plugged in all the way.
2. Lean condition
3. Rich condition
4. Tuning
5. Vacuum leak
And the list goes on......

 

Look, Pull out your coil packs w/ the plugs and crank your motor to see if your getting spark If not that's your problem. If your not then move on to fuel portion.

 

What are you tuning with? Af/r when trying to accelerate at WOT?

 

I can see a Problem from the picture, I also have a Kinetix V+ and had this issue... On the drivers side front of the plenum, There is a tab that holds the wire harness that runs across the front of the plenum, it bolts to the stock plenum but it is not supposed to bolt back to the V+... Make sure it is not between the V+ and the lower half of the plenum... If that does not fix it, then it just not sealing properly... To check, remove the plenum and place it on a flat surface and it should not rock or have any space between the surface and plenum... You can also put a flashlight or something underneath it and you should not be able to see any places where the light is showing more than others.. I had to send my 1st one back due to it being warped and would not seal and was doing the same thing you described above with the idle..... Hope this helps

 

Also be sure to the the Throttle Body relearn.... I had to do all this and learn the hard way! lol