whats the top speed of the lg4? does the lg4 have a speed limiter?

 

No

 

probably around 110, though the speedo is 85

 

when i had my oriiginal motor i had my speedo peged straight down a couple of times not quite sure if this is coredt but we estimated about 120-130mph. it took 11 looooooooooooooooong time and a lot of road to do that but i did it!

 

No speed limiter, no. As for the top speed, someone said the speedo only goes to 85. Well mine is a factory 140 unit. *shrug*

 

Yours is also in km/h.

 

No, I mean 140 mph. 220k.

 

think '86 was the first year for the 145mph speedo

 

135 give or take.

 

I read somewhere that top speed for an L69 was 138. I doubt a stock LG4 could complete with that kind of speed.

JamesC

 

had mine at well over 140 on a couple og occasions course it wasnt just the stock 305 when I had it. Plus manual valve body in the 700-r4 meant it wasn't doing that stupid half throttle downsift that they are notorious for.

 

headers and exhaust on my car 84 t/a-5sp L69, 3.73

5200 rpm in 5th...took forever but estimates out to 150 ish... with 27in tall tires

 

i had a flowmaster cat-back and k&n replacement filter with the lid flipped when i did my runs. oh and a fresh set of plugs and oil change! that motor had 21x,xxx miles on it too! crazy with the 2.73 gears though i was in 3rd doing about 4000rmp and if i was easing into it in 4th @ about 2500-3000rpm! that was insane!

 

Speaking of the fullthrottle 4th gear downshift. Does anyone know how to fix this?

 

You get a new boost valve, I believe. A search will turn it up. Though you had better have done other stuff to the trans so it can take the abuse.