[zr580s rule]

just like everyone else that replied to that post i as well have the same sled no EFI related problems at all very reliable sled very good handling sled also

 

[zr580s rule]

the ZR 580 is rated at about 95-97 horsepower i have found that the EFI's are a bit stronger and a lot better running then the carbs  top speed should be right around what the newer 500's run maybe about 95-100 on the gun but i have never had anybody stick a radar on it so i really am not sure

 

[zr580s rule]

jims1969bt

how many miles did you have on your 580 when you discovered your intake boots were cracked?

im just wondering when other people have discovered that their boots were cracked because i found that one of mine was cracked after 2400 miles and scored one of my cylinders

is 2500-3000 miles typical for them things to rot out?

 

[zr580s rule]

do the old cat 700's have the same problem because if they do then it probably has something to do with the vibration or motor-mount flex under acceleration but i havnt heard of people having the same problem with the 700's just the 580's