It should reduce both.

ok so then ill probably start fabing up a couple of pieces one 2.5 in and another 2 in... thax for all ur help dave, uve allways been there for me!

also on another note i tried to put a home depo BC were it says incert boost controler here on the diagram. and it says to take out the restricter pills.
are the restricter pills in the actual hose or are they some where else? and
if they are in the hose then i might have a problem, because when i pulled my hose out it waqs empty.

https://www.rx7club.com/attachment.p...d=174768&stc=1

that's not entirely true, with just intake and a DP i saw 12 psi on a cold night and now i've got GT spec exhaust. But haven't seen over 12 so apparently the stock cat is the thing to have. Too bad mine's shot.

12 is where fuel cut comes in, and where fuel supply with an all-stock system gets scary. But the point is that if you set your boost above 10 (say 11 or 12) you have no margin for error.

If you don't have pills, look in the nipples attached to the compressor. In some turbo assemblies, they reduced the inner diameter at that spot instead.

Dave

that could be it, they are '99 spec not sure if they did that for those turbos ill go and measure the diameter. still havent had a chance to make those exaust restricters because of mothersday but ill get on it asap and tell u the results.

ok so i mad one of those pices and it didnt seem to hel really. my patern was 15-10- spike at 13 then down to 10 and a 4k rpms it studered. the hole i made was just a litele smaller than 2 in. i think im gonna try and put my stock exaust on and see what that does. any other sugestions?

ok so i got around to puting my stock exaust back on and no real promising results... patern was 15-7-12 and just like my last post it studered at 4k rpm... this crap is gettin really old. some one please help me.

Are your wastegate and precontrol actuator rods still attached properly? Make sure the e-clips didn't pop off.

15psi indicates something is very wrong.

Dave

ill check them but i think that they are on. i have the solenoids swiched right now so the pattern is what i origanaly posted which is 11-5-6 so its some what safe. ill go and check them imediatly!

ya the rods are still on there and so are the clips. man i do not get this... would it be possible to get a MBC and reduce the boost? any other ideas? thanx

bump

hey preston i think you should just sent it back to Rotary extreme and see what they can do...u have been at this for awhile now...but yeah Goodluck! i would help you but i dont knwo what to do haha

Now... I haven't been a 3rd gen owner for very long but what about the MAP sensor coming off the back of the Throttle body?
I was thinking maybe that could be having an issue. Without having proper readings of manifold pressure/boost the ecu wouldn't see the proper pressures to open/close the solenoids in time. Thus giving you a boost creep/spike. Or a leak in the line maybe... Or maybe those solenoids have another sensor they get their info from....
Maybe you want to check the line running to the MAP sensor... or the checkvalve which runs to it... I could be way off but it looks like you have tried all the more obvous things. ;) It couldn't hurt.

hmm, maybe i have no idea where the MAP sensor is but now that u say that... you know the studs that goe thru the intake elbow? well one of them on the bottom broke in half along time ago, i was able to screw the nut back in but maybe it didnt make a proper seal. what dou you think?

Nope, a leak at the intake elbow will lose boost if anything.

A manual boost controller will probably help or solve the problem.

Dave

MAP/Pressure sensor location is in the picture below:
http://www.davidgeesaman.com/rx7/93v...lor.edited.jpg

Look at the top right of the picture. You can't miss it...

OH that thing? actualy it threw me a code a few weeks ago, but it went away, do u think i would need to replace it?

You could at least swap it with another. On a weekend we could swap it with mine and test to see if your boost is fixed.. or even one of these evenings as I could drive my Jeep around for a couple days. So long as its warm and sunny outside. ;)

Otherwise maybe someone else around you has one laying around also check the vac lines and that little filter attached to the vac line. Make sure everything looks decent.

Definately if it threw a code you should check it out.

alright, sounds good i really apreciate it, im free any time since i just quit my job so when ever ur free we could do this.