jim bob hex Posted July 19, 2012 Report Share Posted July 19, 2012 This is at least the sixth time I've been back to check out your wagon :thumbup: I'm really liking that gas tank. Can you share the dimensions, capacity and who built it for you? Quote Link to comment
TENDRIL Posted July 19, 2012 Report Share Posted July 19, 2012 this is f-ing awesome!! $510!!!! great deal did they ship it to you and how much was that 1 Quote Link to comment
Claudman Posted October 16, 2012 Author Report Share Posted October 16, 2012 I have decided to install a turbo on the wagon and am looking at an easy 250 to 300 HP at the wheels for this project. The plan is to rear mount the Turbo with a air to water intercooler under the hood. I didn't want to screw with the A/C piping in the front and since I don't use a spare tire in the back, the area in the back is perfect for a simple rear turbo install. And when you look at some of the turbo piping I have seen, this setup is not much more piping. I select a rather small Turbo for the installation since I wanted good spool times and good street driving since this is where I use the car mostly. Still have to mount the wastegate, blow-off valve, MAF and Air Filter, but it should come together quickly now. The air return lines fit nicely in aluminum The intercooler will be up front Quote Link to comment
MicroMachinery Posted October 16, 2012 Report Share Posted October 16, 2012 How intriguing.. I've never seen that before. Quote Link to comment
DRIVEN Posted October 16, 2012 Report Share Posted October 16, 2012 Dammit! Someone beat me to this. I've been thinking about a rear mount turbo for a while so I hope this works out well. Will the intercooler really be necessary with a small turbo? My understanding is that the charge temp drops quite a bit going from the back to the front. That long pipe acts like an intercooler. Quote Link to comment
Draynor Posted October 16, 2012 Report Share Posted October 16, 2012 I also have never seen this before. Very interesting,Can't wait to see this whens it's finished! Quote Link to comment
RadioRedline Posted October 16, 2012 Report Share Posted October 16, 2012 Wow. talent here folks. Radio Quote Link to comment
Claudman Posted October 17, 2012 Author Report Share Posted October 17, 2012 Just to be clear, I am having the work done by Powerfab Automotive. The fabricator worked for Hennesy before coming to Powerfab and he does great work. There is no way I could do such nice work. The turbo is a Precison ball bearing 5558. V bands in and out with a billet wheel the turbo can make up to 550 hp. In mapping out the performance it looks like I will need 10 to 12 psig of boost, so the inter cooler will be a good addition. It does add a lot of complexity since it will need a water system, pump and radiator. There have been many rear mounted turbo designs around for a while. Check out Squires Turbo Systems for some examples. http://ststurbo.com/ Quote Link to comment
]2eDeYe Posted October 17, 2012 Report Share Posted October 17, 2012 Nice solution, looks great. :thumbup: Quote Link to comment
MicroMachinery Posted October 17, 2012 Report Share Posted October 17, 2012 Even with a small turbo, you'll still experience a fair amount of lag on account of the distance, no? Quote Link to comment
NICKLE&DIME Posted October 17, 2012 Report Share Posted October 17, 2012 That green matches my neighbors green 2 door... I like that color, My brother had a 1200 that color too. Nice engine choice and interesting build!! :thumbup: Quote Link to comment
Stupid_fast Posted October 17, 2012 Report Share Posted October 17, 2012 How are you going to oil the turbo?? Perhaps its own leetle dry sump system? Quote Link to comment
Tristin Posted October 17, 2012 Report Share Posted October 17, 2012 Even with a small turbo, you'll still experience a fair amount of lag on account of the distance, no? No. Intercooler piping is always positive pressure, so although the piping is longer its still filled with boost ready to feed the engine. I've seen a few articles and webisodes featuring STS vehicles and technoology. A friend of no e also drives a STS twin turbo C6 and he says lag has never been an issue (due to the turbo location). Quote Link to comment
MicroMachinery Posted October 18, 2012 Report Share Posted October 18, 2012 No. Intercooler piping is always positive pressure, so although the piping is longer its still filled with boost ready to feed the engine. Well, I'm looking at it like this.. the time it takes the exhaust to reach the end of the tailpipe is much longer than it would be at the end of an exhaust manifold. Also, the intake charge would take longer to travel back up, through the intercooler and into the intake, than it would if it had a shorter distance to travel. This would seem to cause much more lag than a conventional setup, since the distance was much greater. I would think it would take much longer for the turbo to spool up(in response to the demand from the accelerator pedal), and also take longer for the intake charge to get into the cylinder, know what I mean? You'd step on the loud pedal.. waiting.. waiting.. OK here we go! Air, being compressible, doesn't move instantaneously like incompressible fluids do in a hydraulic system, where if there is any change at all on one end, it doesn't matter if the distance is 5 inches or 5 miles, the other end sees the same result in the same amount of time. I'm not trying to poo-poo anybody's ideas, as this is something I would DEFINITELY like to see work in a Datsun, as the engine compartment often is lacking in room for a turbo. I'd love to try something like this out.. just trying to learn, and would like to be corrected if I'm wrong. Quote Link to comment
Tristin Posted October 18, 2012 Report Share Posted October 18, 2012 Yes there's obvious compression loss due to the extended length, but nothing ridiculous. This is always the number one thing brought up when these setups are discussed. I know STS has done a bunch of research on the kits... Many people with cramped bays run this type of turbo. There's plenty of YouTube videos I've seen of different vehicles rocking this with good results. I'm really excited to see what comes of this. Quote Link to comment
Claudman Posted October 19, 2012 Author Report Share Posted October 19, 2012 More work has been completed. The oil return pump, waste-gate and blow-off valve have been mounted. Pics as follows: 4 Quote Link to comment
Tristin Posted October 19, 2012 Report Share Posted October 19, 2012 Im digging the way you routed the exhaust and blow-off valve pipe. Quote Link to comment
Claudman Posted October 19, 2012 Author Report Share Posted October 19, 2012 Thanks for the comment. The exhaust and blow off valve along with the exhaust turbine will be sent off to Polydyn Performance Coatings for a ceramic chrome coating now that the fab work in completed. Quote Link to comment
fo0manchu Posted October 20, 2012 Report Share Posted October 20, 2012 looking great! That pipe off the waste gate is going to scream! I think you are going to need a limited slip. Quote Link to comment
erikcarter Posted October 20, 2012 Report Share Posted October 20, 2012 That turbo set up is awesome! Quote Link to comment
Claudman Posted November 27, 2012 Author Report Share Posted November 27, 2012 Almost ready to turn the key and start it up. All the fab work has been complete, new injectors installed and all that is left is the final wiring and tuning to get things going. It should be done this week. Following are the pics of the final install: The turbine housing and exhaust tips were coated by by good friend at Polydyn in Houston. Carl does some great work coating headers, brake calipers, carbs, and even has a low friction coating for crank bearings, pistons and other engine internals. This shows the oil return lines and pump. Reloated the MAF before the compressor with a shielded housing for the air filter. Since we are using a air to water intercooler, had to decide where to put the air to water exchanger. Water tank for the intercooler ] And the intercooler itself. The fun is about to begin. Many thanks to Jeremy and his crew at PowerFab for all their good work. 2 Quote Link to comment
Tristin Posted November 27, 2012 Report Share Posted November 27, 2012 Are running the oil all the way from the engine or are you using a separate supply in the rear just for the turbo? Quote Link to comment
Claudman Posted November 27, 2012 Author Report Share Posted November 27, 2012 The oil is ran off the pressure sensor port back to the turbo. It is a ball bearing cartridge and does not need much flow. The scaveger pump returns the oil back to the engine. I have the oil running into the valve cover at this time since the oil pan would need to tbe modified to accept the oil return and I did not want to pull the motor for this. Quote Link to comment
510sAreHot Posted November 27, 2012 Report Share Posted November 27, 2012 Love this build.. Could you post some interior shots? Quote Link to comment
hobbes_the_cat Posted November 27, 2012 Report Share Posted November 27, 2012 This is so rad. I'm excited to see how hard it runs with that rear mount turbo. Quote Link to comment
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