Another round of newbie questions but once again could be a nice refresher!

[h0wl0ngcanitbe]

So here we go again after what feels like countless hours on this site for the last month ive come up with another round of tech questions that im sure you guys will be able to answer for me like always! Once again thank you in advance you guys rock!

Question what is/or...

1. Does TBI stand for in reference to an engine and how do I identify if I have it or not?


2. Crossover steering


3. Hi Steer


4. Shift kit, for tranny


Once again thank you so much

 

[lectric80]

1. TBI is Throttle Body Injection. You wouldn't have it stock on an 86, as I believe it was an 87 model year addition. If you have a carburator you don't have TBI.

2. Crossover steering is as the name implies, the draglink crosses over from the driver's side to he passenger side. Stock steering is called push/pull steering since the drag link runs from the sterring box to the driver's side wheel, and pushes and pulls the wheels to turn. Crossover runs from the steering box to the passenger side wheel and pushes and pulls the passenger side wheel to turn. There is a mechanical advantage to crossover versus push/pull.
3. High steer is best explained by someone else. I believe it is simply a tie rod end that is mounted high on the axle, whereas the stock tie rod end is low on the axle assembly.

 

[h0wl0ngcanitbe]

so for a blazer with a 6" lift cross over steering is something that should be done?

 

[Hogback Fabrication]

So here we go again after what feels like countless hours on this site for the last month ive come up with another round of tech questions that im sure you guys will be able to answer for me like always! Once again thank you in advance you guys rock!

Question what is/or...

1. Does TBI stand for in reference to an engine and how do I identify if I have it or not?

TBI stands for throttle body fuel injection, its GM's early version of fuel injection. Its simple, reliable, and inexpensive to purchase and maintain.

2. Crossover steering

The stock steering goes from the steering box (driver's side) to a steering arm on the driver's side knuckle. The stock draglink (steering link between the steering box and steering arm) is ~18" long.

Crossover steering has the draglink running from the steering box to the passenger side knuckle which makes the draglink more like 48" long. The reason you want the longer draglink is because it's less affected by suspension movement. With springs that have decent flex the stock steering is horrible, you will have little steering control. Crossover steering gives you your steering back.

The previous comment about crossover having more mechanical advantage is incorrect, crossover actually has ~30% less force than the stock steering.

3. Hi Steer

The tie rod is what connects your two wheels together to ensure that they both steer the same way. In the stock location, its in front of the axle and is vulnerable to obstacles on the trail. High steer relocates the tie rod above the axle and springs and keeps it out of harms way.

4. Shift kit, for tranny

It raises the line pressure in an automatic transmission, causing faster, harsher shifts.

 

[chevyuser74]

you blazer doesnt need crossover steering, its really a matter of what your into, if u just drive on the street u dont need it, if u play on the rocks its a big advantage, if u only play in mud not a big deal either but it does help.

 

[h0wl0ngcanitbe]

well then what about a shift kit i only use this thing as a street machine so would that be beneficial?

 

[chevyuser74]

700r4 arnt the most stout tranny in the world so if it is stock i wouldnt put a shift kit into it, i have one in mine but i also had it rebuilt and built up to handle some abuse, if your tranny works fine i wouldnt mess with it.

 

[h0wl0ngcanitbe]

ok sounds good, i was just curious a bunch of people on here have them and i was just wonderin what the deal was with tranny shift kits.