crAzy95Z28

iTrader: (3)

Ok i just want to make sure this is most likely my spark plug gap.

Im running a dual nozzle 200 shot. 52 N and 27 F for the jets. I pull out 4* of timming on my msd timing controller and bottle presure at 900. It pops when i spray. " pop, pop, pop, " several times. I totally forgot to gap my Tr6's to .025, instead i left them at the factory settings. I was told to gap them at .025-.028 from one of the cold fusion guys. Or should i just gap them to .030 - .032 and work from there?


Please get back with me ASAP!

Thanks

daniel6718

iTrader: (36)

pull MORE TIMING pull like 10 degrees...4 is prolly not enough...what tuen do you have? a motor tune or nitrous? i dont hav a jet chart but assuming your pressure is good then its prolly timing...


mine poped out of the exhaust 2 times...once with too much fuel and another with too low pressure on the bottle

crAzy95Z28

iTrader: (3)

Well i actually did run it 1st with 6* pulled along with 650psi. Its kinda cold here so it took forever to build up psi. It popped alot. so i waited and then pulled 4* of timming and let it get up to 850 and then popping actually was not as bad as the 6*. Maybe actually let it hit 900-1000psi and try 4*?

The car is tuned with 0* of timming all across the board. My msd timing controller is suppose to be on 15* which is equal to 0* on my PCM. So pulling 4* would be -4* of timing. Plus i have a LT1 355 forged, not a LS1

donkey mule

My car did the same when I had too much fuel and also when I did not have the right gap on the plugs. I have a 95 TA with a wet kit. I have my gap set at .035 with ngk tr6's and now it is perfect. Go you have a wide band? I woulsd also check air-fuel to be safe.

Beaflag VonRathburg

iTrader: (176)

^ +1, If you are spraying at 650psi you are getting way too much fuel. That popping sound you are hearing is the sound of unburnt fuel igniting in your exhaust.

crAzy95Z28

iTrader: (3)

so more PSI will fix that solution correct?

Nitro Dave's Nitrous Outlet

iTrader: (25)

Poping in the exhaust is normalu unburned fuel. Your bottle pressure needs to be atleast 900psi and your airfuel needs to be around 11.5 to 11.8.

Timming on a 200 shot should be around 18-20 degrees total timming.
Hope this helps.
Dave

Beaflag VonRathburg

iTrader: (176)

Yeah, it will fix the popping sound. If you don't fix the timing and spark plug gap you're going to have a lot larger problem on your hands, like chunks of pistons coming out your exhaust.

crAzy95Z28

iTrader: (3)

well the motor is forged. So id prob be popping headgaskets.

So what you are saying dave is pull out 15* of timing. Thats all i can pull out of hte MSD timing controller. I thought it was 4* since it is a LT1 OBD1 and all my timing is 0* out on the lt1 edit.

LostCauseZ06

iTrader: (4)

phhsss... i run 28 degrees of timing on my 200 hit lol. never had any problems but i seem to be a strange exception to the timing rule.