Ford lover, saves a 94' Z28

[grasshopperglock]

Brain, Ill contact by pm.


I'm in negotiations with the federal government. Trying to get approval to spend my own money. It's a pita process to where vendors have to be paid directly from the bank. The money, even though it's mine and there's a butt load of it, can't touch my hand. It's controlled by a Federally hired, attorney/custodian. Technically for me to buy something, I need a business account that entertains purchase orders.

My theory is the Fed's don't want veterans buying firearms or ammo.


I gotta build this car right. I have funds to build three of the same car. I'm gonna bite the bullet and get one of these(from spohn, not summit, it's an example)

http://www.summitracing.com/parts/str-prg210/overview/


33spline, 1350 yoke, stock rear brakes....and some little extras that really gig the price.



Can't buy it used, the Fed's won't let me. Can't buy if from a private person, Fed's won't let me. It's gotta be brand stinking new and expensive as all get out.


Good Lord almighty....$3 freaking grand for a rear end....

 

[Brains]

If it were me, I'd flog it on the 10 bolt until it fails. Heck that's exactly what I did when I had my 'bird Took a LOT of clutch dumps on ET Streets to kill it too. With an auto, you'll likely never break it at your power level, especially with a stock converter.

 

[TheDan]

I'm in negotiations with the federal government. Trying to get approval to spend my own money. It's a pita process to where vendors have to be paid directly from the bank. The money, even though it's mine and there's a butt load of it, can't touch my hand. It's controlled by a Federally hired, attorney/custodian. Technically for me to buy something, I need a business account that entertains purchase orders.

uh what? Where is said monies?

 

[grasshopperglock]

Programing the 4l60e. After doing some heavy duty research, here's the result.


This first table indicates the "Normal shift points". They're listed as MPH. The computer doesn't make the trans shifts, it simply tells it to. The hydraulic circuits dictate the shift. The "mph" is the starting point of the shift. Not when it happens nor when it finishes.

This table is called the "kickdown". This is a completely different set of valves then the "Normal shifts". In this table, the shift occurs after another set of parameters are met in the table below it.


See, for the shift to occur, both MPH ~and~ RPM values have to be met. Say the engine is winding at 6000rpms. The car is below the MPH variable. It won't shift until it reaches that set MPH. If the car is going the set MPH, yet the engine rpm isn't met...no shift.


These tables are for which the shift points are adjusted. The RPM valves are set low to ensure the RPM parameters are met. Then the MPH is adjusted to move the shift point up or down. Since the engine will be above 5000, it's not interfering with the MPH requirements. These LT1's can be racked past 6000 rpm. However, the stock cam and valve train are in a power band below that.

This table dictates how fast the shift happens. The smaller the number, the quicker the shift. Under power, you want the transmission bands to grab as fast as they can. Slow engagement allows power to be lost, it creates more heat due to slippage,and gives you that mushy shift.

The factory set the shift times rather soft. Not all customers wanted shifts that'll pop your neck. They programmed the shift to be soft.

.200 is as low as will work. If I adjusted to 0.00, the shifts won't happen faster. The transmission can't move faster then mechanical possible.

This table tells the ecm when to use the "kickdown" table verses the "Normal shift" table. TPS% is the term for the amount of opening to the butterfly valve in the throttle body. You scoot around town going to HEB and usually never open the throttle past 40%. Above that % is what you'd consider hotdogging.


So If I stab the gas pedal past 49.6% opening. The computer changes from the Normal shift table to the kickdown table. Giving me a different dynamic to the transmission shifting.

Here's the devil in the details. Changing shift apply times also changes timing retard for the shift. I'm still studying that area.
"Sent from a puff of smoke"

 

[TheDan]

Pretty interesting stuff; I don't know much about automatic transmissions. Can you install some switches and make it shift when you tell it to?

 

[grasshopperglock]

Pretty interesting stuff; I don't know much about automatic transmissions. Can you install some switches and make it shift when you tell it to?

With a manual valve body you can. Then it only stays in the gear selected. Otherwise it's automated.

Since its hydraulically controlled with a hybrid of electronics. It'd be a pita to try to control it with on/off switches. I doubt reliability would be worth a crap. You'd look like the wizard of oz pulling levers going down the road. For the trouble, a standard transmission would surpass it.

Here's how they compare to the old school stuff. Names you've heard before.

The 4l60e can be thought of as an updated turbo 350 with a 4th gear added. It was previously known as the 700r4 before being updated again and given the name 4l60. 4l60e came later.

4 stands for four gears. The L is the class of transmission(longitude, meaning rear wheel drive). 60 stands for the torque rating. E, electronic.


A 4l80e, the next bigger transmission can be thought of as a Turbo 400 with four gears instead of three. 4gears, class, torque rating, electronic.


Edit, I had some wrong info on torque. It's corrected.


Here's some reading.


https://en.m.wikipedia.org/wiki/GM_4L60-E_transmission

 

[grasshopperglock]

Army surplus saves the day. I'm only doing the top, cuz it's the only place I grab the wheel. Helps with the gangsta lean, yo. When it's gets grimy with hand funk. Ill change the color to aqua and throw the old cord to the cat. Army surplus by the house has every color.

"Sent from a puff of smoke"

 

[grasshopperglock]

Check it out. Couldnt find one in 1994 but 1995 will work. Even the same color. This is an old Hotwheel. Pretty dang neat.

"Sent from a puff of smoke"

 

[robertc1024]

Please tell me you are bringing it to Hicksville. I'll bring a Shamwow to wipe the drool off of it.

 

[grasshopperglock]

Lets try it again...


Dealing with the , "dammits"


The front tires are 28" tall, the factory tires are around 26".

When the car is backed. The rear bushing on the lower a-arm is flexing(like its suppose to). This is sending the front tires into the fender liner. The left rubs worse then the right. The front fascia on the left is set back ever so slightly. Thats assembly line quality of 1994 but with 26" tires is didnt matter. Now it does.


You can see the rub marks. The fender liner fits inside the bumber. I flexed it out to cover the protruding corner of the fender. Cause it was getting dragged too.

My first attempt at gaining clearance. The fender liner was set back, held with different screws. Notice the factory bolt hole and the difference of movement.

The tires still touch. To set back the fender liner more. Im gonna have to cut the bottom panel that the fender liner pushes up against. More on that latter.


Steering was adjusted again. (Backlash in the rack) Felt a hair loose.

Inspection of everything. Every bolt I touched, has gotta be touched again. I found a loose bolt on an exhaust hanger. That means I missed something. So everything else has to re checked.

Nothing is leaking. From burbing the cooling system, changing hoses, having to pulled the radiator twice ...theres weep and left over antifreeze. It not hurting a thing, just makes a mess.

"Sent from a puff of smoke"


"Sent from a puff of smoke"

 

[grasshopperglock]

My fan belt is churping. It almost screams.

The last time I changed the radator, the system was purged of air. What Im calling 'burbed'. One bleed valve is settled right to where coolant being purged, gets on the fan belt.

The sticky antifreeze cycled with the belt. Getting on every pulley, top and bottom of the belt. Im not having a loud, chirping fan belt. Im not waiting for it to burn off either.

Alternator pulley: nasty.

Power steering pulley: nasty

You get to where this is headed. Crank, idler, and ac pulley....


Nasty.


Fan belt has the most crude of everything.

Im gonna let the Windex evap and its going back on. Basturd better not churp.

"Sent from a puff of smoke"




Edit: No more chirp or squeals. It's back to nice and smooth.

 

[Orbie]

Where's the updates?! I like reading this thread.

 

[grasshopperglock]

Where's the updates?! I like reading this thread.

Next up is gonna be finishing the top. It's a winter project. When the season rains come around, Ill get it installed.

 

[Orbie]

Alright

 

[TheDan]

Get back to working on it!

 

[matefrio]

We need a picture of the whole car update.

 

[grasshopperglock]

Every time I start the camaro up. Dude down the street feels the need to rack his pipes. Rolls by my house likes he's a drug dealer. Yet loud as hell.

Nissan 240sx with a V8 conversion. Sounds like a LS.


I might throw money at this car and stomp his ass about as big a puddle as a cow can piss.

 

[robertc1024]

About a hundry million posts ago. Bring that MOFO to Hicksville. Got it?

 

[grasshopperglock]

Darla got a polish. Im gonna pony up the money for a porta cable da buffer. Put some skilzs to use. She'll gleam like a pretty whore, when Im done.

Cars know when you love em'

"Sent from a puff of smoke"

 

[mitchntx]

About a hundry million posts ago. Bring that MOFO to Hicksville. Got it?

And I'll bring the tannerite ...