OK i just rebuilt my JDM TII engine like almost a month ago and its been running good but one day i redline for acouple of secs maybe 2-3 and it was fine but, later that day it start to accelerate sort of slow like it wasnt taking the boost or not enough gas but i checked all the pipes to make sure they r tight and also check the air filter it almost seems like it has a vacuum leak somewhere i checked yesterday and found a leak cover it with a cap but that wasnt it. so am going to take it back to they guy u rebuilt it to check it out again twice now but he is saying that its ok but if there is anyone who have opinions let me know i rather fix it myself thanks

 

i guess..obody knows

 

not with that description....details plz

 

i described pretty much everything umm let me see like i said it feels like it doesnt not accelerate fast lke before like the boost is leaking out or not enough gas and the enigne feels like a small vacuum leak i even notice my vacuum gaugw went down just one i can't really explain more than that you would have to drive the car to see what i mean

 

S5? How many miles did you have on it before you redlined it?

 

I looked really hard for about 5 minutes before I found out that you had written a HUGE run-on sentence. Congrats!

 

1. How many miles were on the engine when you redlined it?
2. What is the max boost right now?
3. What is the acceleration time 0-60mph?