I've been thinking of installing a turbo for years, and finally decided to go for it and got a Hahn Stage 1 turbo kit. Most of the instructions they sent are good, and this site has helped a lot.
First off, the kit came with this thing in the fuel system box with no instructions on what to do with it and I have no idea what it is for.
Also the instructions say to T the short hose that goes from the compressor housing to the wastegate line to use as a signal hose for the fuel pressure regulator. Do I just cut the hose and T it? It just seems like a weird place to get a compression signal to me.
Also in the middle of the turbocharger are 4 holes, but from what I've seen in pictures, only the oil inlet and outlet are used. I was just wondering what the other two holes are and is it ok just to leave them open?
Last thing, the kit mentions a metal tube for the return line to the fuel pump, but my kit does not come with one, and it's not mentioned on the item checklist. Do I need one? Or would one of the other fuel lines work just as well?
#108625, "RE: HRC Install with a few questions" In response to Reply # 0 Mar-29-11 05:05 AM by Fallen4ng31
Originally posted by Sllew I've been thinking of installing a turbo for years, and finally decided to go for it and got a Hahn Stage 1 turbo kit. Most of the instructions they sent are good, and this site has helped a lot. First off, the kit came with this thing in the fuel system box with no instructions on what to do with it and I have no idea what it is for.
Also the instructions say to T the short hose that goes from the compressor housing to the wastegate line to use as a signal hose for the fuel pressure regulator. Do I just cut the hose and T it? It just seems like a weird place to get a compression signal to me.
Also in the middle of the turbocharger are 4 holes, but from what I've seen in pictures, only the oil inlet and outlet are used. I was just wondering what the other two holes are and is it ok just to leave them open?
Last thing, the kit mentions a metal tube for the return line to the fuel pump, but my kit does not come with one, and it's not mentioned on the item checklist. Do I need one? Or would one of the other fuel lines work just as well?
1. It's a relay for the fuel pump.
2. You can use any vacuum source for the FPR, but it is wise to use a dedicated one.
3. Two of those are coolant passages. One of the nice thing about those particular kits is that you have the option to cool VIA oil and water. If you're not planning on running coolant through the turbo, just buy the proper size plugs for the passages.
4. This one I'm not sure on. When I did mine, the return came from the FPR, which was mounted next to the canister on the underside of the car; Thus the return was very short.
#108626, "RE: HRC Install with a few questions" In response to Reply # 1
Thanks Another concern I have is that Hahn says to use a stainless steel line for the oil from the sending unit to the turbo, and for the fuel between the fuel rail to the FPR, but I only have one stainless steel line. Do both of these have to be stainless steel?
Btw I got the kit from turbokits.com rather than hahn themselves which may have been a mistake
#108627, "RE: HRC Install with a few questions" In response to Reply # 0
Originally posted by Sllew Also the instructions say to T the short hose that goes from the compressor housing to the wastegate line to use as a signal hose for the fuel pressure regulator. Do I just cut the hose and T it? It just seems like a weird place to get a compression signal to me.
The fuel presssure regulator that comes with the HRC kits does not like to see a vacuum signal, and when tee'd into that location, won't. If you tee in anywhere else, install a check valve so that the BEGI/Cartech doesn't see a vacuum signal.
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#108628, "RE: HRC Install with a few questions" In response to Reply # 3 Mar-29-11 08:51 PM by Ebster1085
If there are any parts you believe you are missing, just call up Hahn and I am sure they will send them to you free of charge. When I bought my kit way back when, some stuff was in fact missing, and they sent it all in a timely fashion.
For the return line, there should be a section of fuel pressure hose that runs off the regulator, and then connects to a hard steel line that runs under the length of the car. As it is under the car and exposed to road debris, I suggest you use a hard line.
The oil pressure line that goes from the sender unit to the turbo is steel braided hose with AN fittings on both ends.
Of the 4 holes on the turbo, only two should be open, oil inlet and oil outlet. The other two should have brass plugs. If not, Hahn simply forgot. Their kit does not include the parts necessary for water cooling, but yes, it can be done which is nice.
1999 Eclipse GS Built motor Hahn 16G Turbo w/ FMIC Hahn Stage 5 Portfueler (270's & 500's) Zeitronix Zt-2 wideband w/ 3.5bar MAP 3" SS Turbo Back CM Stage 4 Clutch and Fidanza Flywheel Baer Big Brake Kit
