schaef_12

Just wondering if there are any benifits of messing with the full throttle stop after installing a 3GSK. It doesn't seem to pull as hard on the top as i expected it too. Also, Before doing the acutall 3Gsk, I tried the washer mod and had a real sensitive pedal, with i liked, put since i changed to the "real" gsk, it is not much more sensitive than stock, is that normall or did i do something wrong?

schaef_12

uuhhmm, Bump?

Fueling around

What's your injection timing?
Without a significant advance you cannot squeeze out the last of the rpm from the GSK
A real GSK should be smooth. You did good.

Rare1

My truck goes easily to 3000 with full power, timing at 15. I'm guessing your IP is not set up right, perhaps the #100 plate full forward is overfueling. What is your smoke and boost situation?

schaef_12

Pump timing is at 15.5*, I run 40lbs of boost and have a decent haze at wot with full boost. Also, around 1500 rpm i get "pop" not a miss, and have heard that it has to do with fueling vs timing, maybe i should pull the plate back abit?

Lil Dog

Injectors would give you the mid rpm "pop". I heard that alot with 370's.. The DDP's don't do that..

Rare1

If your smoke description applies when it poops out at high RPM, lack of heavy smoke says it is not overfueling. Maybe it is underfueled, but you have the BOMBs which should prevent that. I'm not saying your BOMBs are wrong, but sometimes there's an incompatability between good parts thrown together, and the intended result is not achieved. If your combination is a known winner, just forget I said that.

Does your linkage actually hit the full throttle stop when you floor it? Have someone press the pedal while you watch the linkage. About the plate location, lots of people think that if a little is good then a lot is better. That is usually not the case. There should be a position between the middle and full forward that is optimum, and every truck is different.

Lastly, there was a link posted within the last 2 weeks for a comprensive IP tuning procedure which results in a good balance between power and smoke, involving the plate position, starwheel, and smoke screw. See if you can find it.

schaef_12

Thanks for the reply, I will check the throttle linkage, I have the plate full forward but was thinking about going back to a #10 and moving it back a little bit to not have to worry about egt's. I just want to make sure i am taking full advantage of usable upper rpm's where there turbor doesn't light until 16-1700 rpm.

I do think that maybe i have the wrong combanation of parts in/or not in, the pump. I thought that it should be fueling harder under wot, thats why i thought maybe the full throttle screw might need adjustment? Heck, Maybe i just need to clean the fuel screen under the pump?