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Hey guys was just confused about somethng,i got a Turbosmart manual boost control yesterday,and set it up to 10 psi,its showing 10 on the aftermarket boost guage but the stock guage is stil not going over 7,should the stock boost guage be going upto +7 or to the very top end of the stock boost guage?

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the stock guage is in mmhg x 100

(milimetre of mercury) x 100

god knows why...

sooo...

"7" on the stock guage is 13.5 pounds (.93 bar)

so 10 psi should see it at ~75% of the scale

Thanx guys,that cleared my mind i thought there was a problem with my guage,another quick 1 hehe :rolleyes:.the boost controler is set to 10 psi,wen i put the foot down the boost guage needle hits 10,but as the car reaches 6500-7000,the needle drops back to around 7 psi.is that normal?

Thanx guys,that cleared my mind i thought there was a problem with my guage,another quick 1 hehe :action-smiley-069: .the boost controler is set to 10 psi,wen i put the foot down the boost guage needle hits 10,but as the car reaches 6500-7000,the needle drops back to around 7 psi.is that normal?

guys could you help me out with this issue.does it normaly happen?

Could be a boost cut feature? What sort of modifications do you have? Electronic boost controller or manual?

Mine does the opposite...full throttle on cold night, she overboosts past the normal...

Could be a boost cut feature? What sort of modifications do you have? Electronic boost controller or manual?

Mine does the opposite...full throttle on cold night, she overboosts past the normal...

Got a manual boost,standards mods for now i.e FMIC, POD,TURBO BACK EXAUST,HI FLOW CAT

sorry in my old msg i mentioned the RPM wrong.as i hit the throtle it hits 10 and when i reach 5700-6500

it falls back but.but the power doesnt feel like its cutting back or something its just the guage starts falling back

to 8-7 psi.and yeh in he morning when i take it out it misfires for sometimes around 5 minutes then all good

(i do warm my car for at least 10 minutes)

no need to warm the car, just drive it quietly for a while.

usually boost will spike up and drop back a bit, i figure because the waste-gate finally opens, releasing pressure.

happens exactly the same on my friends type x (180sx).

however, misfiring isn't normal. check your spark plugs, coil packs ect.

no need to warm the car, just drive it quietly for a while.

usually boost will spike up and drop back a bit, i figure because the waste-gate finally opens, releasing pressure.

happens exactly the same on my friends type x (180sx).

however, misfiring isn't normal. check your spark plugs, coil packs ect.

Recently changed spark plugs.got the coil packs checked a couple of months back,they were fine then,but wil check em again.

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