What do you guys think?? this is with no cool down! I'd like to be in the 400/500 club so some tweaking will come. Accufab S/B? here is what i have so far.

2001 blower setup
2004 L stock motor
Apten port
4lb lower
volant intake
efan
dynatech longtubes/midpipes to true duals
I'm seeing about 11psi on the gauge

Well let it rip, suggestions and comments welcome!!

 

Get with Sal for a tune !!!

 

With basically the same mods - the long tubes, I pulled 414/503.

Were these runs done on a Mustang dyno. If not, you are in desperate need of a good tune.

 

I agree

I am assuming this is with a stock pcm. anyways that a/f is all f*cked up.

later
brian

 

lets not overlook the fact that this is in a 6000lb supercrew 4x4 with 35" tires, 4.56 gears and the 4r70w tranny! The chip is a SCT mailorder from apten and burnt to work with the N/A 5.4 pcm. I plan on getting intouch with Sal to see if he can help me. None of the dynos here have SCT tuning capabilities! OH the pulls were on a dynojet dyno.

stl01svt, are those SAE #s? just curious, i wanted some #s to compare my losses through my drive train to. How much boost are you seeing? I figure the longtubes are dropping boost some.

Thanks for the replies guys!

 

Yes.

 

am i the only one that thinks you should be seeing more than 11 pounds of boost with a 4lb lower and the port? dont people usually see about 14-15 with the apetn port+4lb lower?? And wouldn't the long tubes only reduce boost by about a pound?

 

I thought the same thing but where would i be losing boost? everything is buttoned up tight and running wonderfully except for the slightly rich condition. It might be more like 12 towards the higher rpm but when i do visit that end of the tach my eyes are elsewhere and i couldn't watch the boost gauge when it was on the dyno. So i figured the Longtubes cancel anything that the port increased. Am i thinking correctly? The morning of the dyno was the first day since i have had the truck together that it has been below 70F! it is hot and humid here (south Louisiana, Extremely south)!!!!!