Boost drop!!mspd6

[Pipatec]

Hi im having the problem that when the car hits about 4500rpm the boost drops a lot, i drops ti reach 10psi!!! What can I do to keep it constant.

 

[buttons]

Check for boost leaks? Having a better description of the symptoms could help us help you. When did this start, was anything changed since then, etc etc?

 

[Rutedown]

Do you have TMIC? Check the tube that goes from your intercooler to your turbo toward the rear of the engine. The clamp on mine loosened and when I would get to a certain rpm it would start to leak bad where I would get spike to about 12-14psi then drop back down to 10psi.

 

[zinger002]

are you stock or modified?

 

[FORZDA 1]

QUOTE=Pipatec;5350126]Hi im having the problem that when the car hits about 4500rpm the boost drops a lot, i drops ti reach 10psi!!!

Normal Operation

What can I do to keep it constant.

The list of mods is long and expensive.

 

[dougefresh_]

Normal Operation


The list of mods is long and expensive.

LOL!! He ain't kidding! I'm spending lots of money now just to get my car back to normal "fast" operation. Do yourself a favor if you choose the mod up the car... when you see "HPFP" on the list, buy the CPE pump, or the KMD internals and have a surgeon install them in a clean room.

 

[m4tic]

LOL!! He ain't kidding! I'm spending lots of money now just to get my car back to normal "fast" operation. Do yourself a favor if you choose the mod up the car... when you see "HPFP" on the list, buy the CPE pump, or the KMD internals and have a surgeon install them in a clean room.

(enguard) haha my ptp internals are still running flawless

 

[FORZDA 1]

(enguard) haha my ptp internals are still running flawless

Doogie's were too until they took a s*** on him....

 

[dougefresh_]

Doogie's were too until they took a s*** on him....

And my cam follower got damaged and needs to be replaced, and possibly my hard fuel line and fuel rail, and hopefully not my injectors as well. 3% fail rate on PTP internals... go roll the dice on all those parts if you're feeling lucky. Or spend an extra $250 and never think about it because CPE pumps don't fail. Or get the KMD internals as Forzda1 swears by them, but you have to be very careful with the install.

Lol, Morris, I didn't even mention who made the bad internals with the highest failure rate on the block.... but since you brought it up... I made the mistake of being cheap, and listening to you and others that said the PTP pumps are great. It was my own damn fault though, because I knew 2-3% failed, but no one told me they resulting damage a pump failure could cause. Everyone is like "oh, the pump will just seize and you'll loose pressure, and need it replaced... but they have a lifetime warranty." Mine failed at WOT at about 5-6Krpms. Idle has never recovered despite two pumps. Thus, most likely metal bits in the hard fuel line, and possible the fuel rail and injectors. I'm having the whole thing flushed out when the CPE pump (which is always on back-order, but never fails) finally arrives.

This is definitely not a mod you want to try to save a few bucks on... it'll end up costing you WAY more in the long run. Not to mention down time. Pump one failed... they wouldn't send out a new pump until they got the core back... mail got jammed up... car sitting for 10 days. Next one was an immediate fail and then another week of no pump. New stock replacement pump won't hold pressure because of the damage the 1st pump caused when it failed at wot. I ordered my CPE pump June 22, and it's still gonna be a 1-2 weeks before I get it, and have everything fixed. What a ******* waste of time and money. Oh yeah, and eating $40 in costs ($20 x2 w/ insurance). The ONLY positive is I kept some miles off my car! lol

 

[Pipatec]

OK thnks 4 all the comments. The car only have 17psi and corksport FMIC, ana I already checked all the hose clamps and there's no boost leak just boost drop. i was thinking in try a electronic boost controller but i dnt want to buy it for nothing.

 

[zinger002]

The ONLY positive is I kept some miles off my car! lol

hardly a positive. lol.

(cricket)

 

[FORZDA 1]

OK thnks 4 all the comments. The car only have 17psi and corksport FMIC, ana I already checked all the hose clamps and there's no boost leak just boost drop. i was thinking in try a electronic boost controller but i dnt want to buy it for nothing.

Well, the throttle plate is FBW and the ECU WILL close it, regardless of the pedal position, when the boost and/or calculated load exceeds the limit thresholds in the ECU, so don't expect too much improvement from a MBC...

I could go on and on with endless tuning/ECU operation details, but suffice to say that this car doesn't respond well to ham-fisted mods. Throwing more bolt-on parts at the car doesn't help because you've not addressed the part that controls it ALL, the ECU...

 

[m4tic]

i been through two failed cdi sets... with no damage to anything, i just put my stockers in and went on my way... i am just baffled how you have that damage, that is the first time i've ever seen anything like that. user error/mfg error doesnt matter, whats done is done... just keep going foward and enjoy your car

 

[KrGsMrNKusinagi]

Going CPE If i get it but I dont need it as of yet