Well it seems like the HPP3 took a crap some time ago. I have been having some 2nd to 3rd Shifts problems for about 3 months or so, after I tried to adjust the shift points down a few. Well After that the car would hit Rev Limiter trying to go into 3rd gear at wide open throttle. So I tried to set it back to stock settings and it still doesnt want to shift.
Well thinking that it was the tranny, I had it rebuilt with top of the line stuff including a 3000 stall. I got it back yesturday and it still acts the same as it did before. I assume that the car will need LS1 Edit to get it right.
Also the car will shift normal and good at normal driving conditions, so I dought that the ECM is bad, The Mechanic also agrees that it is ok and that the Power Programmer HPP3 For 98 LS1's, has caused all the problems.
Has anyone had the thing happen to you and does anyone no what kind of warrenty Hyper Tech gives. I am disgussted with them.

 

if it does it with the stock tuning its not the hypertech.. and edit wontt fix it

 

So does that mean I need a new computer? Everything in the Transmission is brand new. Will flashing the PCM work? There is no code, so its hard to tell. All I can say is that it was working fine before I tried to lower the shift points from +7 to 3+ for 2nd to 3rd shift. 1'st and second is perfect and so is 3rd to 4th at Wide open throttle... What else controls the shifts? Relay somewhere?

 

why do you have the shift points raised anyway? your supposed to shiftt 6000.. and on spray you need to lower the 2-3 shift down from factory...

there is no need to raise the shifts unless you have a cam

Btw how do you have a wet N.O.S kit?

 

You just got

I would like to know the same thing??

 

wet nos kit

 

You should look in PhantomTA's sig " It's nitrous NOT nos idiot."
He probably has an NX kit

 

I have a Wet Kit!! I still dont know whats up with it. I am doing shift point into the the Negative Zone. I have 1-2 at -2 and 2-3 at -3 just to see what happends. This is a pain in the butt. I didnt have any problems before until i TRIED TO CHANGE it about 3 months ago. Thats why I assume that it is the HPP3 that screwed it up.

I converted the LS1 Dry NOS kit to a Wet 125hp shot. The bad shifts are happening at only Wide Open Throttle.. I havent had a Chance to run with the Wet kit at the track due to the Problem I am having. Does anyone think that LS1 Edit will do much better?

 

So you do not think he is experiencing Torque Management? I would like to hear your explaination on this. All signs to me point to the dreaded Torque Management system in the PCM. You can adjust shift points all day long, but the PCM is going to kill timing and delay the shift until it thinks it is safe to shift. It is designed to do this to prolong the tranny life.

 

Why do you need an explaination? And why do you need one from me? i never mentioned anything about torque management.. but because you wanna pick on me like i said something wrong...

Okay, ill give you some backround on myself to maybe give myself some credibility...

For over two years i worked at Modern Muscelcar (we made the scanmasters and maft's etc)
While i was there i was a tech and ran the Dyno, helped build quite a few 10 second GN's and f-bodies.

Then now for over 2 years ive worked at two of the Ramchargers stores plus now im a sponser of this site and work in the mail order deparment of a ramchargers as well as act as a tech.

Now how do i know?

Because ive seen cars with a hell of a lot more power than that have 0 problems because of this Torque Management...

 

Wow, all it took for my car was a stall convertor, guess you haven't seen it all.
I would suggest finding someone with ATAP and confirming your timing. You will know if you are hitting Torque Management, especailly before a shift you will see the timing go Negative if it is really bad. It's not uncoomon for an LS1 to put down 600ft lbs of torque at the wheels with a stall and N2O........... I am sure GM did not have that kind of power in mind when they designed the 4L60E...........Like I said it only took 400ft lbs before it started to become a problem on my car, not bad, but once I sprayed, it made it really bad.

 

Well Everyones going to love this. I had LS1 Edit on the car last night and when it finished downloading the info, it said that it didnt know the computer or something like that. Weird!!! So the Guy that Made LS1 Edit wanted my friend to send the info to him. I guess no one has ran into this problem with LS1 edit.... HAHAHA

Well It turns out that it might be the Tranny even after the rebuild, so I have to send it back to the Shop. The Torque Management System never cause any problems before, because I used to run fine before.

I guess after the rebuild the Tranny still didnt shift right and has gotten worse. It takes a while at normal driving to shift from 1st to 2nd " Slipping" and so on and so on... Wide Open Throttle, HEHEHEHAHAHAHAH YEa Right Slaps the Rev and have to let off.

So now that we know its the tranny, what could cause this to slip so bad.. Bands? Servos? TQ convertor? or just a bad rebuild? 1st to 2nd worked fine before the rebuild.....

 

something is most likely screwed up in the re build

 

OK Im getting mad!! The Guy pulled it apart and said that they didnt find anything. But they are going to put it back together and check Line Pressure... Are there any ASE Certified 4L60E or 4L80E transmission Mechanics in here? Ever since the rebuild its worst. I am about to take it to GM and have them verify what is wrong with it. DAMN IM MAD!!!

 

Why don't you put ATAP on it and check for Torque Management, or even better since you had it on LS1 Edit, why don't you have it removed just to confirm it's not the problem.