Killer_Z

iTrader: (1)

perhaps ur gains will show on a full 1/4 run and not an 1/8 mile run. what did u trap before and after? i'm w/ everyone else getter back on the dyno theres something up. and i dont know much but 25psi on D1 does sound a lil off.

Blown06

iTrader: (32)

IAT's the same as when I was running less boost. On the 6.97 that I ran this weekend IAT's were at 130* at the beginning of the run and 90* by the end of the run. Ambient was aroun 65* I think.

It's not making 25. It hits 258 kpa, which is a hair less than 23. MPH has always been 100.

Blown06

iTrader: (32)

Just a little update. I put a little timing back in it and it went 6.69 in the 1/8 yesterday. 1/4 time was a 10.46 which is a .5 gain, however the mph stayed the same at 126. Not sure what that is about?

SincalT/A

iTrader: (16)

Your problem is trying to push 850hp.+/- through a 3" pipe.

Blown06

iTrader: (32)

I'm gonna have to agree with you. That is an area where I could potentially pick some power up.

Also, I think I've found the limit of these 60lb injectors. I've run 2 different widebands on it (AEM and Innovate LM-1) and I can not get the fueling dialed in. My VE table is very smooth in the WOT areas, yet the log shows AFR boucing all over the place. It goes from 10.0 to 11.5 and back to 10.0 through out the entire run. My AFR line looks like the blade of saw swinging up to 2 full points at times. AFR does not respond to any changes in VE. Also, IDC was reaching as high as 138%

Can't decide if I wanna try some of the "large" high imp. injectors or run a box with some 96's or something. I've got some research to do.

ninetres

iTrader: (35)

Get a versafueler box and some 96s. Any high impedence over 60lbers (from what I have read) do not really flow much more than 60's, and have issues.

I would contact Jon at the sponsor FIC. He really knows his **** and gave me a killer deal on a set of injectors last week (120s).

SincalT/A

iTrader: (16)

Change the merge pipe first it will affect your tuning.

SincalT/A

iTrader: (16)

What yo FP do through a run?

CarsandWomen

iTrader: (19)

could always turn up the fuel pressure to see if that helps A/F at all, but yeah change that 3" pipe first

rgvsierra

iTrader: (7)

congrats on your time,

that 23 is believable. my friend has seen as much as 20psi with his d1/364 on a 6rib setup.

Casey2323

iTrader: (14)

So why does Jon at FIC sell 200s that are high impedence??... Thats more then a large step from 60s... This is the first time i have heard anything like this about the low impedence being THAT much better

ninetres

iTrader: (35)

That's why I said call him and ask, and it is pretty common knowledge that low impedence injectors offer a mechanical advantage over their counterpart.

As for the common 75lb and 80lb advertised flowing High/IMP, I have read lots of the fuel vendors say stay away from them..... as the 60s will get you just as far with less issues.

Here is some good info for you:

http://www.acceleronics.com/faq.htm#1

quicksilverado

iTrader: (8)

Congrats on the new time. Truck is rolling out.

MY99TAWS6

iTrader: (3)

I have heard fine things about the 80 high impedence and lots of guys seem to make good power with them. 60s would need some really high fuel pressures up at that power range.
I also happen to have a brand new set of 120s with aem box and adapter harness for sale if you are interested pm me. I was hoping to get e85 here and since don't look like its going to happen will be sticking with 80 high for now. I have not ran them yet ran 60s last season but the 80s will be going in next week or so.

Slowhawk

iTrader: (12)

You have a bunch of little issue's.You found what timing does(faster time) and found what an undersized fuel system does(same mph).This is what a load dyno would bring out.(reason I said hit it on a dyno)

A good step is getting rid of the 3" exhaust pipe.I'm also hoping you are not running 1 255L pump in the tank.You should definitely be running twin pumps.If it is 1 pump,more than likely you have a pump issue over the injectors.

LilJayV10

iTrader: (39)

that truck is moving.

Beaflag VonRathburg

iTrader: (176)

Slowhawk, has it right. You have a lot of issues going on there. For the fuel system I would step up to adding another 255lph in there, possibly stepping up the feed line (depending on what you have), and throwing it on the dyno. With the small cam you have you could shim the springs to add some pressure which would help if you are having valve float issues. You need to see what is going on with the power curve.

In regards to the blower I haven't seen too many people push 23psi through a D1SC on a stock cubed setup. That is a lot of boost even with your ported heads. What RPMs is your blower seeing?

Blown06

iTrader: (32)

I need to change my sig. I'm running a cell in the bed, -12 feed to a 4303 Magnafuel pump, -10 to the Y, -8 to each rail then out to a Magnafuel Regulator. I think I'm covered on the fuel system, except for the injectors.

I agree, exhaust needs to be addressed. If I could confirm that the F-body Kooks do infact bolt up with no problems, I'll probably do that and a true dual 3" or something.