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-   -   Boost Issues, and thoughts? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/boost-issues-thoughts-395240/)

DVSseven Feb 13, 2005 10:50 PM

Boost Issues, and thoughts?
 
I have a good pattern besides my spike but I can handle that with porting, pellets, profec. Anyways, my car feels very good out of the hole but seems to even out at around 7 psi. I have looked and have found no leaks, the pressure stays on the gauge perfectly. I seem to have a "whoosh" sound that comes from the passenger side as well with part throttle. Almost like a CRV letting out pressure. I have checked the hoses on that and checked the intercooler piping, and the coupler that connects the y-pipe to the intercooler pipe and all seems well. Does anyone have any suggestions?

DVSseven Feb 13, 2005 11:59 PM

wow, is everyone asleep?

broken93 Feb 14, 2005 12:29 AM

Even out around 7 psi meaning no more than 7 psi? You said you had a good pattern?

Have you checked the CRV to make sure the spring actually can hold the pressure?

vellj001 Feb 14, 2005 01:17 AM

Mine had the same pattern 7psi. Checked everything finally got to my specialist and he checked everything as well. Found only a minor leak in my BOV at first but still I was not convinced. Checked turbos and there was the problem. I had to have them pulled out and totally reserviced. The engineer fond a microscopic damage on the main shaft that weared off the bearing.

This happned 3 weeks ago. Today I should have my first test drive after reinstallment.

jeremyb Feb 14, 2005 03:40 AM

Check you CRV valve, though its vacuum line may not be cracked, the valve itself may be faulty.

WaLieN Feb 14, 2005 02:29 PM


Originally Posted by DVSseven
I have a good pattern besides my spike but I can handle that with porting, pellets, profec. Anyways, my car feels very good out of the hole but seems to even out at around 7 psi. I have looked and have found no leaks, the pressure stays on the gauge perfectly. I seem to have a "whoosh" sound that comes from the passenger side as well with part throttle. Almost like a CRV letting out pressure. I have checked the hoses on that and checked the intercooler piping, and the coupler that connects the y-pipe to the intercooler pipe and all seems well. Does anyone have any suggestions?

So what does your boost pattern look like? (this is important when you want an answer to your question)

mad_7tist Feb 14, 2005 04:12 PM

/\ yea. under 4500 there should be a whoosh sound from the crv.

DVSseven Feb 14, 2005 11:35 PM

My pattern is 12-11-14/15 with the spike, I know how to fix the spike. The power seems to drop at around seven pounds....

DVSseven Feb 16, 2005 12:50 AM

I have full boost but the power seems to slack off after about 7.5 lbs.

WaLieN Feb 16, 2005 05:49 AM

What are your mods? Have you checked your spark plugs lately?

DVSseven Feb 16, 2005 02:06 PM

M2 stage 3 ecu, flowed and matched injectors, m2 dp, pettit intake, cosmo fuel pump, greddy exhaust w/cat, type s bov, new Pineapple motor with stage 1 oil mods, new rotors and housings everything cryo treated, magnecore 10mm wires (new) with new b9es and b8es NGK plugs, all new oil injection components, new 99 efini turbos, fluidyne rad., silicone vacc. line job., and there are more but this is what affects performance...

DVSseven Feb 16, 2005 07:23 PM

bump...


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