hiboost fmic help

sic77 · Dec 17, 2006

the bpv should be coming off of your turbo>ic pipe then going into your cai.

msp2fast · Dec 17, 2006

sic77 said:
the bpv should be coming off of your turbo>ic pipe then going into your cai.

Fmic eliminates it,unless i put some type of fitting on the ic pipe,right now the U bend on the cai is pluged since the other side of the bpv cant be hooked up to the ic pipe.will moving the maf to the ic pipe prevent stalling?

MP3Architect · Dec 17, 2006

yup! i had huge stalling issues with my hiboost and greddy s before relocating...some reading for you..
http://www.mazdas247.com/forum/showthread.php?t=105437
http://www.mazdas247.com/forum/showthread.php?t=57969

msp2fast · Dec 17, 2006

MP3Architect said:
yup! i had huge stalling issues with my hiboost and greddy s before relocating...some reading for you..
http://www.mazdas247.com/forum/showthread.php?t=105437
http://www.mazdas247.com/forum/showthread.php?t=57969

I guess im relocating the MAF! thanx for the info

msp2fast · Dec 17, 2006

IS my bov sitting to high up on the pipe a mean is almost touching the battery!

Mutmatt · Dec 17, 2006

you can have it there you just need to recirc the valve

Brian MP5T · Dec 17, 2006

The stalling is from the BOV. Moving the Mass Air will fx it.

The mass air meters the air coming in the intake.

When the valve opens, a rush of air gets metered but the air isn't actually going into the engine.

THe ECU thinks you have just MASHED the gas to the floor and want to accelerate so it dumps a ton of gas into the intake, but there is no air to burn it and you stall out.

By moving the Mass Air, you will only meter the air entering the Throttle.

msp2fast · Dec 17, 2006

What should i do about the U bend in the cai?

mspHtown · Dec 17, 2006

i dont know if you have enough room to relocate the MAF sensor because the BOV is so close to the throttle body. mine is just like yours and i didnt have enough room so i just ran the dual setup. either way, the stalling is eliminated and the bov souds great!

msp2fast · Dec 17, 2006

mspHtown said:
i dont know if you have enough room to relocate the MAF sensor because the BOV is so close to the throttle body. mine is just like yours and i didnt have enough room so i just ran the dual setup. either way, the stalling is eliminated and the bov souds great!

what would i have to do,weld a niple on to the ic pipe?Do you have a pic of your set up?

mspHtown · Dec 17, 2006

msp2fast said:
what would i have to do,weld a niple on to the ic pipe?Do you have a pic of your set up?

i just installed my wideband today and looking at the MAF sensor, it would def be a tight fit. it may be possible but i just decided to go with the dual setup. i definitely cannot relocate the MAF sensor now because i have extra injectors for the mpi. these pictures are old so the extra injectors are not shown. hope they help! just tell me if you need anything else.

msp2fast · Dec 18, 2006

mspHtown said:
i just installed my wideband today and looking at the MAF sensor, it would def be a tight fit. it may be possible but i just decided to go with the dual setup. i definitely cannot relocate the MAF sensor now because i have extra injectors for the mpi. these pictures are old so the extra injectors are not shown. hope they help! just tell me if you need anything else.

thanx for the pics.i think we could relocate the maf if we cut the lower L pipe that goes to the S pipe,but looking at the dual setup,it looks like its easier to do.Did u weld that niple there yourself or did you go to a shop?

mspHtown · Dec 18, 2006

msp2fast said:
thanx for the pics.i think we could relocate the maf if we cut the lower L pipe that goes to the S pipe,but looking at the dual setup,it looks like its easier to do.Did u weld that niple there yourself or did you go to a shop?

i had a shop weld it on for like 75 bucks or something. i dont remember the exact price but he did an awesome job to not damage the hardpipe while welding the nipple on.

msp2fast · Dec 18, 2006

mspHtown said:
i had a shop weld it on for like 75 bucks or something. i dont remember the exact price but he did an awesome job to not damage the hardpipe while welding the nipple on.

How loud is the greddy now with the dual set up did it quiet it down some?

mspHtown · Dec 18, 2006

msp2fast said:
How loud is the greddy now with the dual set up did it quiet it down some?

i dont have a comparison to the bov by itself because i ran the dual setup from the start. however, even with the bov and the bpv, it is still decently loud. it makes people turn their heads and look for the pshhh. there used to be a video on the forum. i think it was by "tallrd". il try and find it for you.

mspHtown · Dec 18, 2006

also, tap the bov and the bpv into the brake booster line.

mspHtown · Dec 18, 2006

check out post #24:

http://www.msprotege.com/forum/showthread.php?t=113534

dirtysouth_msp · Dec 18, 2006

I thought mine was a couple of inches short were the 2 pipes connect below the front grille. But, after playing around with the piping a few times I got it fit fit fine. The only thing is, the piping touches things in a couple of places and I have 95 durometer AWR Motor mounts, so it rattles a little sometimes.

msp2fast · Dec 18, 2006

thanx again,right now i have the vacum line that hooks up to the stock bpv hooked to the RSBOV,Its LOUUUD!!i like it a lot,i wouldnt want it to get any quieter but with my unichip spiking to 15psi i dont think it will.I know that amount of psi is harmfull to the motor but even with the boost controller off it spikes to 10psi,this happened when i bolted on the new exhaust,i think a built block will be my next mod!

Blake · Dec 18, 2006

i run a blow through setup on mine
works great no stalling

hiboost fmic help

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