Puzzling issue... ju

[SHO_DOODmorrris]

Hey guys
i have my turbo sho running about 8 psi now and it runs great exept for this problem... under WOT once in full boost i get this wierd hesitation/bog/missfire/revlimiter thing... it feels like a rev limiter but it gos thorugh it. it occurs when winding out any gear other that first from about 5000 rpm on. it pulls hard up until this happenes then it just ooses power and barely climbs.... its not pullin timing is it? i have WOT timing set to about 20 degrees.

-Mitch

 

[SHOspazz92]

Hey guys
i have my turbo sho running about 8 psi now and it runs great exept for this problem... under WOT once in full boost i get this wierd hesitation/bog/missfire/revlimiter thing... it feels like a rev limiter but it gos thorugh it. it occurs when winding out any gear other that first from about 5000 rpm on. it pulls hard up until this happenes then it just ooses power and barely climbs.... its not pullin timing is it? i have WOT timing set to about 20 degrees.

-Mitch

This is just a shot in the Dark here as my Skyline had a Similar issue....But do you think that it is Spark related? I had to Change the Coilpacks in my Skyline when this issue happened.

-Sam

 

[E1 v2]

what's your spark plug gap? sounds like you're blowing out the spark at higher boost levels.

 

[BlackonBlack89]

what kind of plugs are u running? and wats the gap.

 

[SHO_DOODmorrris]

2 steps colder (the ones from shosource) and gapped at stock spec i think... should it be closer or farther? and yes i think its spark related.

on another note... never get rubber couplers. i make them like balloons when my turbo is done with them....

-Mitch

 

[jthod]

I vote try another coil pack. My green pile was having a similar problem, swapped coil packs, problem was gone completly.

 

[SHO_DOODmorrris]

hmmm k ill pick up my spare from the storage compound tomorrow after work and after i go get a new alternator... mine is shot. barely made it home.

 

[BlackonBlack89]

hmmm k ill pick up my spare from the storage compound tomorrow after work and after i go get a new alternator... mine is shot. barely made it home.

That also may be ur problem too as the battery may be weak and not giving enough power to make spark.

I had a little odyessy pc680 w/ a dead alt and the car only ran for 30 minutes before the lights,engine, ect drained it. Then the car died.

 

[shomtx95]

i would gap the plugs to about .025 or .030

 

[1995SHO9]

2 steps colder (the ones from shosource) and gapped at stock spec i think... should it be closer or farther? and yes i think its spark related.

on another note... never get rubber couplers. i make them like balloons when my turbo is done with them....

-Mitch

I'm going to put my money on that you are blowing out the spark. Stock gap is wayyyyyy to big to be running on an F/I sho.

I run a 28 gap.

try 28 to 30. If that doesn't work go alittle smaller.

~Johnathon~

 

[ycode90]

Afr ?

 

[Toolman]

Ditto on the gap. You want a smaller gap for FI than for NA.

 

[rubydist]

I would start by closing the gap about .010 from stock. In my experience, if the plug gap gets too small, they don't run decent either, especially at idle, so I expect that .028-.030 is too small for optimal performance.

 

[SHO_DOODmorrris]

closed the gap a bit, did it in a parking lot so i dident have my gapper with me but i eyeballed that shit pretty good dident help. new alternator is in as well and that dident help. trying new coil pack tomorrow after work then ill go buy some plug wires if i have to...

-Mitch

 

[1995SHO9]

I'm interested to see what the cause of this is.

I'm putting my money on ignition.

Do you have new plugs, wires, , dis?

 

[SHO_DOODmorrris]

uhhh... we dont have a distributer john... we have a Distributerless Ignition System (says the boost noob to the boost snob )
Fixed it, it was my coil pack. thanks for the help boys now first and second are rendered usless and third is straight out of rickey bobby... "Slingshot Engage"

-Mitch

 

[jthod]

Killswitch engaged...

 

[SHO_DOODmorrris]

bro just bought that album yesterday lol.

 

[Toolman]

Glad you figured it out!

 

[jthod]

bro just bought that album yesterday lol.

Love it, a little different, but still good.