need help asap

[icegt]

Hei there I just installed the supercharger and started the car... Loooove the sound. One thing though. The RPM was much higher than usual. Propably around 1500 and after a wile it fell down to like 500rpm and then up,down,up,down,up,down untill i turned it off. it was rocking up and down between 500 and 1200 rpm and dark smoke came out of the exhaust.. what can that be? any ideas??

 

[BlownFiveLiter]

The hunting idle sounds like it's trying to adjust to having the s/c on there. As far as the black smoke goes, I'd be inclined to think it's running really rich. Did it come with an adjustable FPU or anything? What kinda s/c did you get?

-Matt

 

[icegt]

yes it must be running really rich cause my eyes were killing me in just 2 minutes and the smell wwooooowww... yes it came with Fuel pressure regualtor and it was surposed to be set up for the 5,0 HO motor. This is a vortech SQ2 setup

 

[icegt]

yeah I know it is dirty

 

[icegt]

ttt

 

[MysteryMachine]

damn didn't you paint the engine bay or clean the motor while you had that thing apart lol

 

[icegt]

naaa I can clean it later but i am not so happy about the way the motor runs.. can anyone please help me withthat?

 

[wytstang]

Have you played with the fuel pressure regulater. Try lowering the fuel pressure if your running that rich.

 

[icegt]

how do I do that???

 

[wytstang]

If you have an adjustable one a wrench is all you need to turn it left or right. You do need a fuel pressure gauge to see if you just increased or decreased it.

 

[icegt]

this is the one

 

[wytstang]

No that a fuel managment unit. Read this and see it it helps http://www.stangnet.com/tech/injectors/fmu.html

 

[icegt]

ok I got this kit with the FMU. Shoud I swap it and put the one in the one I got with the FMU in? what is the diff?

 

[icegt]

yes petrol is flamable... I forgot to tighten the fuel line on the bottom of the FMU and it sprayed petrol all over the headers and MAN WHAT A FLAME!!!! PROPABLY 2-3 feets in the air... And when I put the fire out I just started lauging like crazy and I thought my dad was gonna slap me I was laugin because my brother left on his camaro 5 mins ago and when he left he said " im gonna go get a wet towel to throw on this ford crap when it turns into flames" (he is a Z28 owner) and when the fire was out that was the first thing that came to my mind ... Sooooooo funny D

 

[MysteryMachine]

thats 2 guys now that has caught the motor or fire this week. I'm scared to start my car now

 

[icegt]

what another one??????