Alright, I have a Black Top and i was abusing it today. It was hot and humid as hell but heres my problem. After driving about 30 miles i came to a stop and the engine started lagging pretty bad. Sometimes it would be ok then back to the bogging. I'm thinking this is a boost problem b/c of the heat outside. Can that make a significant difference? Im at stock bost and have mild bolt-ons. Thanks

 

sounds like a boost leak...check all fittings/connectors.

hmmm, maybe heat soaking the intercooler. do you have the sidemount still?

might wanna check your timing too.

 

turn up the boost it will all work out in the end. jk

sounds like timing or heat soak

 

pure genious. you should have just quoted the above post.

btw Jerry, the head is still sitting in my garage

 

yes i do have the SMIC. I kinda checked for leaks but not completely. I dont have a boost gauge yet. Whats the best way to check for leaks? Can someone explain the effects of heat soak? Does it make you sputter under WOT?

 

timing is at the stock 16 degrees also. I didnt alter it after the engine started after the swap. Do i need to adjust it anymore?

 

It was heat soak. Later that night after work she ran fine. I never knew heat soak was that bad.

 

Oddly enough the FSM makes no mention of heat soak for the problem of the engine stalling when it is hot. I wouldn't think you'd run into heat soak problems at stock boost.

 

it didnt stall. it just ran like shit

 

The FSM doesn't have "engine runs like shit when its hot"

Maybe hesitation would be a better choice than stalling, but it still doesn't have any mention of heat soak though. Oh well, if you're happy with it being heat soak then I'm happy