Well I recently installed a home made turbo kit on my accord. Problem is that my turbo will spike to 9lbs at about 2500 rpms but then only hold to like 5lbs almost instantly to redline.

Car is a 96 accord tuned on a PO6 and ectune. At first I found 2 boost leaks which then led me to get the results that you see above. Because at first I was only holding at 2lbs by 5k rpms. Anyhelp would be appreciated. Do you think I could still have a boost leak? Maybe the stock cat is creating a little bit of feedback to the turbo at a higher rpm? Or maybe the turbo is just too small? Thanks for the help.

The setup consists of:

T25 garrett 465183-0008/ TB2531 .49/.48
2-1/4 charge pipes
Turbo xs rfl BOV
turbo xs mbc
450 cc dsm injectors and a walbro 255 gph fuel pump
2-1/4 down pipe
stock cat with dented up 2-1/4 exhaust piping
no resonators and a 07 mustang gt muffler

 

just had a similar problem with my car. had boost leaking into my coolant system. changed the head gasket and bolts, now its all good. could be that...

 

thats a tinyyyy turbo dude

 

Anybody have any idea's??????? Still can't figure it out.

 

check for leaks?

 

First things first, you neeed to ditch is the factory cat, they melt and clog up real quick and cause excessive backpressure and that will reduce your boost and cause the car to run super rich. That could be your problem. I would start there.

 

Most people will say that turbo is too small for a D16, let alone an F22. That's one reason its not making much boost. The next is the small exhaust & cat. Another could possibly be your vacuum hose routing. Many HMT setups go super-cheap on the hoses, and that creates tons of problems. Another issue with some HMT setups is exhaust leaks, mostly from warped flanges. Usually this just leads to slow spool & poor response.

The following should help narrow it down to one or two things. Disconnect the hose on your WG, plug the end that supplies the boost. EASE into boost, each time with more throttle. If you still can't make more pressure at higher rpm's, its either a boost leak, or exhaust leak (before turbo).