I installed the boost gauge that i got today real fast, but didnt have a mount for it so i rigged my own (no flaming its temp).. After the install and first runs i noticed its spikes kinda high at certain times. Its gone to flat 25 a few times and drops back down and holds around 18... on the video it goes to around 23 or so from what it looks, but for stock boost untill i get it tuned, is this normal?

I only have a few exhaust parts.


http://www.youtube.com/watch?v=I6f98VvYa14

Check it out tell me if its ok for stock boost levels.

Installing the MBC tomorrow or later tonight, will it help to hold it at 18/19/ or 20 PSI?

 

what kind of gauge is it? Doubled checked the install was correct and no kinks in the line?

 

well from what i know is that the exhaust will give u 1psi more of boost.. but as for the spiking that is normal... but you r boosting a little low i am bout 20 21 psi stock..

 

checked and there were no kinks, but i did T it from the FPR... Is that okay? in 3rd it holds 20PSI for a while and when i shift to 4th at any given time it jumps a little, i guess it does the same for 3rd but it hops to 25 then down to about 21, then 20 for a while till it goes to about 17

 

A spike to 25 isnt low....

 

I dont know if this will make a difference, but i also have a DNP manifold and DNP 02 housing on top of the TBE with no cat..

 

do a boost leak test,i would think the mbc would solve it also

 

ok, thanks for the input... ill be putting on the MBC tonight or first thing in the morning.. will have a follow up once i get it solved.

 

100% normal for stock boost control. Car sounds great. Get that MBC on there so it holds steady at 22 to 20. Your gauge maybe off alittle, mine is off by 3 psi at 25psi. Aem pressure sensor says 22psi and guage reads 25psi. Which one you gonna look at a $35 guage or $200.00 pressure sensor.

 

what other mods do you have on ur car?

 

with those exahust mods, your spike is normal. stock boost easily tapers down to 18-19psi.