is his suppose to happen? i mean the stock boost kicked in around 4.5k rpm and i bought an intake from ebay.. came with filters... i intalled it and now the boost kicks in around 5k rpms... i mean the car is almost bone stock all it has is a 3inc exhust and a down pipe.. it still has the air pump for the emissions but i put a mini filter for that as well untill i get the air pump out of there... any help please i hate my boost kicking in at around 5k rpms

 

make sure their are no leaks. if it came with the rubber couplers then tighten them alot.

 

Do you have a boost gauge? If you don't you need one to diagnose this. If you do, what is your boost pattern?

It sounds from your description that you are not getting (and never were getting) primary boost. A delay of the secondary (post-transition) from 4500 to 5000 may be just a vacuum or pressure hose loose, but other things may be wrong too.

There are boost-troubleshooting links in the stickies.

 

ya, get a boost guage. If you are putting out around 3-5psi you have a boost leak. Check your crossover pipe. Rev the car and listen for air comming from it. If their is, take it off and put water in it to make sure their is a leak and where its at. There are several different places to where you might have a boost leak.

 

Make sure you didn't disturb any of the small vacuum hoses on the y-pipe, particularly the ones going the the charge control actuator. (That's the golf ball-sized one)

Dave

 

no i have a turbo timer and gauge.... yes it came with the rubber.... ill just take a picture of it to show you guys alright be on in a little

 

A guy who owns a CYM buying Ebay stuff.... what has it come to!

 

I would never use the filters but I would use the pipe's it came it under the assumption it fit after all metal is metal... but thats just me...

 

So, what's the boost pattern?

 

it boosts fine its just it kicks in a little latter than normal about 1k latter..... used to be 4.5k now it kicks in about 5k..... and im boosting stock 11psi



dont mind the string i was exparimenting with something

 

you need to do somethin about the open hoses u have

 

About the hoses, you can put on a chair leg cap and drill some holes in it like daleclark did. You can vent your stock BOV. What i would do is take off all that yellow that is goin on under the hood. Looks very rice. IDK, maybe its just me. Get some K&N filters instead of those that came with the harpipes.

 

jesus, whats all that yellow ****? and yah, u might wanna take care of those hoses.

 

What is your boost at 3000-3500 rpm? Is it getting to 10 psi? The pattern ought to be 10 by 3000 rpm, 8 at transition (~4500), and then 10 or so by 4700 or so. Do you mean that it is not seeing the initial 10, or that it is just slow after the transition? If the latter is the case, you may just have a vacuum/pressure hose loose, or a bad check valve.

 

ok 2 things..... yes i need to do something about thos loose pipes.. donno what yeat... second the yellow things came with the car and i dont mind them.. dont bother me and thats all that matters..... and i guess 2morrow i will just make a video of me driving inside the car ill do the rpms and then the boost... so maybe that can get u guys a better example

 

1st-you can vent your stock BOV, put a chair peg with some holes drilled in it on the air pump hose, and idk about the other one. 2nd-Please for the sake of RX-7 take those yellow wire protectors off and bury them far from your car.

 

ok whell im not really doing anything about the yellow since it dont bother me..... but im going to bed for now and if 2morrow u can better explain the drilling of the holes and blugging the stock BOV.. and whats that one tube thats to the right of the top intake i mean whats that for??? it makes the car have a weird noise as its reving up.....

 

I think your talkin about your airpump. Well if you want to be efficient just buy the TKT intake syste from pettit. It hooks up all these hoses separate from the 2 main intakes. It also provides K&N filters for your crappy ones you got there.

 

is the noise comin form the airpump normal, cuz mine is doin the same thing after installin a new intake, i put on the apex'i one though

 

ok whell finnaly i got a video (shitty) of the boost.. it will be up in 5 mins... lots of shaking cuz i had to have my bro lean over and record it on my digi cam.. since i dont have 3 hands

 

Why do we need a video?....lol

Just post what boost you are getting at 3k rpm, 4k rpm etc.

 

If you have trouble posting it, I can host it on my website.

Dave

 

humm was having trouble on putfile so i went to youtube its says processing so in a couple of mins i should have it up... it seems that my boost isnt constant.. kinda looks like its jumping around.. i will post 2 vids i guess one of the rpms and then boost.. they are both starting from second gear

 

any freaken day now.....

 

If your going to get rid of the air pump any way just unplug the electrical connection and plug those hoses, the ACV (factory BOV) and CRV (charge relief valve) and vent to atmosphere (unless you don't want to hear them then you can stick the little filter on the ends like the one you stuck on the air pump hose. All those hoses went to th air box for noise reduction with the exception of the air pump intake hose which went there to keep the air that entered it clean. I not sure I understand how putting on the hard pipes could affect you primary boost unless it was already a problem before the change. My boost actually increased by 1 Lb. on both pri. and sec.