thatdannyboy

Ok to give you some history I just built that motor. Everything ran fine till tuning.... Any ways go out for a street tune. I can full throttle the car and go through 2nd hit 3rd went through it fine full throttle. during tuning some half throttle pulls slow and gradual you hit 6k rpm and the car will sputter like crazy bot litk pop... pop... pop... but like a machine gun pppppppppppppppppp and you can gas through it to 6500 third gear does it at about seven thousand. tuner has only experienced that with a motor running to rich. but air/fuel looks fine at those rpm. stepped it up to ten lbs this happens at 4 6 7 how ever it is only on anything less then full throttle. if I full throttle it go right through it and on to the next gear...

The distributor is new got it online at a1 auto
i replaced the cap and rotar button thinking it might be cheap or something didnt solve issue
i bought brand new ngk plug wires and plugs gaped at 28
then I thought it might be the plugs sounds like spark is blowing out so I got new plugs and gaped them down to 24-25 still same problem...
I was hoping some one out there has had this prob and can tell me a solution it is all stock ignition didnt finish tuning 10lbs because of that want to find out what that is and why it is doing this. Please any help would be awesome!!!

azandford

so it didnt have this problem until you tuned?

thatdannyboy

Well its new fully built motor just finished so I havent taken past like 3k before we started to tune. I had a buddy tell me it my be v tech selinoid needs to be cleaned..

94GSRMR

check yoour oil pressure switch/sending unit.. my car GSR(stock) was tuned on 12lbs 310whp and 26#flbstq, id say 2 weeks after tuning i noticed heavy blow by, car would stutter around 4krpm and up like it was a short or something, had a crack in #4 piston ringland, replaced gsr pistons with itr pistons, also had a cel, replaced distributor cel was gone, car felt a little better, 2days after that oil light cam on andi cut it off, then i cut it back on oil light was gone, but there was a knock!!! spun a bearing.. the knock was very quiet like the ticking that you hear when cams hit the rocker arms.. check the sensors and try new plug wires

thatdannyboy

no oil pressure is good and oil is full i will try plugs anyone else have suggestions.

thatdannyboy

checked wires there 100% anyone else experience this? or have a solution cleaned v tech noid and found vac leak still samething still loss of power and rapid stutter at 6k and at 7.5k rpm i can let off and full throttle it through and im pretty sure i can gas through the rapid stutter??