I'm pretty dissapointed. Car started acting up on the way home too

http://www.youtube.com/watch?v=ks9BnD6Hjrg

 

What happened ?

 

It has a slight miss it feels like under acceleration and just feels really sluggish. Something is up because this car hauled some major *** the past few weeks and feels completely different right now

 

Not knowing anything about your setup, 500rwhp seems pretty good to me... everything looks OK on the dyno graph.

What's your setup? What sort of numbers were you hoping for?

 

sounds like an F1a, that or an EXTREMELY high RPM d1sc that would probably blow up in 10 minutes haha

How many psi?

 

Its a forged 355 8.75:1, Procharger f1a@13 psi. EPP front mount, Procharger race bypass, 9 inch rear, mcleod street twin clutch, full bmr suspension. Thats about all worth mentioning lol oh and a mail order tune.
Nothing wrong with 500hp but this setup should be well over that.

I just found out some good news though. According to alot of the local guys, the dyno I used has been acting up for a while and giving very screwy numbers. So maybe thats to blame?

 

I agree also thats pretty good numbers for your setup. Do you have a FMIC or Meth? What kind of plugs and gap? You'd probably want to stick to a non-projected tip plug with a gap in the .035 range to combat the potential for spark blow out. Did you log your pulls? Mail order tunes can be hit or miss. You may be pulling timing and not know it, but you'd see that in a log. Your A/F's look safe. You can probably lean it out a tad, but where its at is on the safe side, and thats always a comfortable feeling. Like i said, numbers look good, but i'm sure you can get more out of it. The track will tell the tale.

Ken R.

 

Just found out a bolt on ls1 with a blower got tuned on this dyno the other day and only made 351rwhp after tuning! Somethings fishy.

I do have a fmic but no meth yet. Spark plugs are NGK TR6's gapped @ .32 changed a week ago, haven't pulled em yet. I haven't logged anything but I am installing an aeroforce scan guage today so that should be helpful. Another "excuse" is my temp guage has been going haywire recently so I wonder if thats contributing? Maybe pulling some timing?

 

Cluster temp gauge sensor and engine temp sensor are two different sensors.

Have you pulled the plugs and checked for any signs of detonation/ running lean?

Wide band in the car?

 

Yes, i'm aware there are two different sensors. Haven't pulled the plugs but it is not going lean. I don't have a wideband yet.

 

Looks like your A/F is a little rich, try leaning it out a tad bit more maybe?? But also better safe then sorry.

Either way niiice ride man!

Jay

 

Update: The connections on my aftermarket fans had worked loose and were barely touching, explaining the wacky temp gauge. I also changed the o2 sensors. Took it out last night and its a night and day difference! I'll be runnin at the track on friday so well see how it does.

 

If your car is still running rich, it will be just a matter of time until you foul those O2 sensors out. (then you will be sluggish again)

You may want to either get a wide band to verify the car is running at the correct AFR or a dyno tune.

 

P.S. Car looks great and sounds like a blast.

 

Thanks man!
I will be getting a real tune within a matter of weeks, but if they do foul again they have a year warranty