No boost in 1st gear?
 

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.

Re:No boost in 1st gear?
 

uhm if you hear your bov PSH u have boost.

Re:No boost in 1st gear?
 

where what do u have the guage vac line hooked to

Re:No boost in 1st gear?
 

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?

Re:No boost in 1st gear?
 

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.

Re:No boost in 1st gear?
 

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.

Re:No boost in 1st gear?
 

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.

Re:No boost in 1st gear?
 

you also may be hearing your wastegate..

Re:No boost in 1st gear?
 

make sure u used tephlon tape on ur connections

Re:No boost in 1st gear?
 

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.