lots of questions to answer.

corected gtech is me puting in the corection factor of +.3 and -5mph that i observe at the track.

i have the msd wires, they didn't help at all over stock with the high end miss fire.

i am running tr6's at .030, it sure seems like blow out. older plugs and it is worse, more boost and it is worse, open cut out and it is worse. anything that lets it breath and it gets worse. i just put in a set of the BR7's and went for a quick drive. they drive fine and pull good up to the top but i didn't go all out or open the cut out. i will report back on that tomorrow. the br7's are gaped at .025

i dont really know anything about the lock up as to when to lock it or when not to. i am going to stay unlocked till i learn more. right now i am shifting before 6000rpm, i think shifting higher like 6300 or so will help and once i do that maybe i will lock it up.

the vacume modulation is only for line presures. i can still control shift rpms.

i looked thru all the charts on ls1edit, i dont see anything that i missed as far as speed or rpm limiters. have to look into that.

 

My experience with the BR7 plugs is that they are a very cold plug. I have never tried them in this truck but I used to run them in my Lightning when I was spraying. They had a low speed miss at part throttle around town driving. I still see guys over on the the ford boards talking about the miss after installing the '7's so watch for that.

As far as the converter lock, every vehicle I have had traps quite a bit better mph by locking it up as soon as it hits 3rd. This is hard on the converter clutches, and the more power you make the worse it is. Just experiment around with it and see what works with your combo. Now hurry and go get some track numbers !!!

 

i noticed the low speed miss as soon as i pulled out of the garage but it clears up as quicky. i hope is doesn't miss at crusing speed. it did seem like it pulled right up to red line but like i said i wasn't pushing it really hard.

that converter thing is interesting. i only have two sugestions now and they are conflicting. one says to only lock it to keep the rpms around peek hp as long as posiable and you are saying to lock it as soon as i can. if locking as soon as i can helps then i would think locking in 2nd would help too since i spend most of my time in 2nd.

 

I would think you'd miss out on some of your shift extension and torque multiplication at the very bottom of a shift if you locked it too soon. It's good that you have the g-tech to find out for sure.

 

i just talked to PI, he recomended locking it shortly after i shift into 2nd, is there any torque multipulcation after the launch?

i told him i was makind some prety good power and didn't want to hurt it and he said it is rated at 1600hp , lock it any time i want.

 

parish i am glad to hear you got your trans and stall in I hope to see you make it to the track soon i havent been able to make it lately. I hope to see some more low times from your truck . Ready to see you 408 in there even more

 

a 408 is going to be completely retarded

 

For the miss on the low end, that is normal for the BR7's. I see it all the time. Just use the tables to tune out the miss fire so your trans wont miss shift on the part throttle. Computer hates missfire for shifting.

I think F8l's and I will have to let the track decide on weather to lock it or not. But first we need to decide on a exhaust housing size first. I think we went just a bit too big from the last one which was too small. So now we need a medium. But with the big one, the truck pulls hard all the way up, just a nice lag on the bottom. Oh well, name of the game eh?

Rick

 

I've heard guys in the trans section say that there is some torque multiplication whenever theres a pretty good difference between input and output shaft speeds. Don't know if it's true though.