Hello again,

without this forum I would be in trouble as there in nobody here in Greece to answer my questions.

My new question is where I have to connect a vacuum line for a boost gauge. The distance from the engine to the cluster is 3-4 meters. Will that be a problem ?

What is the diameter of the vacuum line I ahve to get ?

Thanks again.

Kostas

Length from the engine should no be a problem. Most boost gauges come with plastic line to run but I suggest that at points where it needs to flex (between the firewall and engine and the gauge and interior mounting point) you should use flexible rubber vacuum line. Make sure to use plastic wire ties to "clamp" down your rubber vacuum line to the plastic line and connections to the gauge so they don't blow off.

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1987 Fiero Coupe 3800 Series II Intercooled Turbo
1987 Trans Am GTA 5.7L Superram 4L60-E
1985 Fiero SE 2.8 (soon to have an L36)

Fiero-related Conversions Performed:
1985 SE 3800 Series 1 SC 4T60-E
1987 Coupe 3800 Series II Turbocharged 4T60-E
1987 SE 3.4 TDC 5-speed
1984 Coupe SBC V8 non-OD to 4T60 OD swap, electric power steering install
1985 SE 3800 Series II Supercharged 4T60-E

http://dtcc.cz28.com

Thanks,

but where I have to connect this vacuum line on the engine.

Can't find anything

Kostas

T off the same port as the fuel pressure regulator. That's a vacuum/boost port.

got it ... thanks