digitalhav0c

Ok i was wondering what would cause no boost in first gear the turbo spools i hear it the blow off valve goes off but on the boost gauge it shows 10inch's in vac. I've had two different turbo's do the same thing i had tdo5h(14b) and the turbo now is td05-3. My setup is tdo5-3, custom manifold, b18b1, 450cc blacktop injectors, custom boost chip(josheph davis), front mount npr intercooler custom endtanks, custom intercooler piping, dsm blow off valve crushed. In second, third, fourth, fifth, i see boost my waste gate is at 6 psi on the td05-3, on the 14b 8 psi. my vaccum is 20 inch vac on idle.

shortyz

uhm if you hear your bov PSH u have boost.

alwaystootall

where what do u have the guage vac line hooked to

digitalhav0c

so maybe it's my boost gauge i think it's tee'd to many times and the vac line is garbage maybe swith lines and see what happens right?

BlinD

Hold up. You get boost in other gears and not first? If you got a BOV goin on then your definatly boosting. Check your vac lines otherwise.

ZexRex

ya i think my bov is off by a few psi b/c i can hear the bov at even 0 vac when i shift.

scttydb411

at 0 vac you still have air moving through your charge pipe and if you shift your bov will open and have air rush past it and psssssh.

sk8rmike

you also may be hearing your wastegate..

alwaystootall

make sure u used tephlon tape on ur connections

Todd

If you have vaccum at wot in first then something is wrong.. either the gauge is reading wrong or you have a restiction some where.