It seems that when i get on the highway and give it steady gas the car fluctuates really hard then drops the boost. It is perfect under heavy acceleration but when i try to hold it for a long time it shuts down. What is my problem? My car has turboback, intake, hardpipe kit, 272's, diverter valve with a stiff spring but it always did this with every spring. It is untuned though.

 

There is your problem. Get the car tuned before you blow it up. You are probably running extremely lean and are hitting boost cut.

 

Please get it tuned....you could be running way lean with an intake and cams......

 

As everyone else has stated get it TUNED ASAP! and turn down your boost until you get it tuned.

Ooops sorry just read your mods again seems you dont have MBC so just keep out of high boost until you can get it tuned. It will save your engine plus you will most likely gain around 75whp and up to 100ft#s tq with your mods it's so worth the cash!

 

Hey man this is ChrisEvoVIII from South Florida Racing. Honestly get either a mail in tune or get the car tuned a little. What kind of DV do you have it it leaking maybe under a medium load for some weird reason I am not to sure.

 

Hey chris. I know I am getting it tuned very soon. It might be a leak. I am going to to a test very soon.

 

Plus wouldn't it break up during heavy acceleration?

 

Its boost/fuel cut. You arent tuned. You are running really lean. Quit beating on the engine until you get it tuned.