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Old 10-10-08, 01:26 PM
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Re: The "4.9 liter turbocharger, stage 1" thread.

Quote:
Originally Posted by Raze View Post
Ok, so I'm bored and need to talk turbos on a cadillac...

What are you planning on doing for engine management? I ask because it would be real straigtforward and easy to install a MegaSquirt, especially since these cars are non-OBD-II which makes sensor feedback to the ECU a moot point. I wish I had my 1990 Eldo near me, it's 1000 miles away in storage as I'd set it up for all to see...

Easiest way to do it is a remote mount turbo, I'd use a Holset HY35 or HX35, 40, etc... series (on the HX you'd have to hog out the turbine split scroll header) for test purposes since they're cheap as dirt (good used one off a couple year old truck usually runs $250 range, only run oil as a lubricant/coolant (no bearings)), in line oil pump ($150), oil lines ($50) some exhaust piping ($100), weld on some hangars(or bolt on if welder not available). Return would be cheaper aluminized steel pipe ($50), for couplers use heater 'stick' hose ($50) for large diesel rigs instead of Silicone because it's much cheaper and much more durable, t-bolt clamps ($50), a cheap ($85) ebay intercooler up front, $300 to build your own Meqasquirt w/a 3-bar MAP sensor, stimulator kit (to bench test that it's working prior to vehicle install), and LC-1 Wideband O2 ($100). You'd also need an external wastegate if you only wanted to run ~5-7lbs of boost which will set you back another $100.

I'm surprised no one has bothered doing this yet, it's so easy it's comical, the turbo system would take a day at most to plumb up and install, the MS would take a couple hours each night x a week for a novice to build, prolly a few sessions like that to install, and then a few more sessions like that to get it idle and then tune. I can't begin to believe no one has considered this, it could be done for about $1300, definatley under $1500...
New details have emerged in that there is a 4.9 tuner that can pretty much eliminate about $1000+ worth of crap that was needed before hand.

I have just been busy with so many other things that I simply haven't had time to do this yet.

Please stay tuned as this whole thing will be a pleasant surprise!