Help with T70 on L33
11-13-2011, 07:34 PM
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Help with T70 on L33 I've been toying with the idea of putting a turbo on my truck. Its a 2000 Silverado 4x4. I have an L33 with LS6 cam/springs going in soon, but I've been thinking about boosting it. The truck sits on 35s and will have 4.88s soon. I want to do this as cheaply as possible, I'm not looking for the best. I am thinking a T70 as they can be bought on Ebay for around $200 and using the stock truck manifolds and fabricating some piping. My questions are can I use stock truck injectors, if not what do I need, and how can I get this thing tuned? I'm in north central Maine, and there aren't many tuners in the area. I would prefer a mail order tune if possible. Please don't flame me saying speed costs money and you get what you pay for. Just want cheap power. Thanks
11-13-2011, 07:44 PM
#2
EMUSA HX35 copy from eBay for $300 (internal wastegate)
eBay BOV $100
eBay FMIC kit $200
Misc piping and oil fittings $300
42lb injectors minimum $200 used
Tuning can be done yourself if you do some hearty reading, buy tuning software and a wideband ($700ish)
Mail order tunes really are not the way to go. I know you're trying to do this cheap, but that's the one thing now to cheap out on.
Otherwise, I'd do up the whole kit, keep the stock injectors and tune on it (don't get into ANY boost) and drive it somewhere to install the injectors and tune.
That's about the cheapest you can do it.
eBay BOV $100
eBay FMIC kit $200
Misc piping and oil fittings $300
42lb injectors minimum $200 used
Tuning can be done yourself if you do some hearty reading, buy tuning software and a wideband ($700ish)
Mail order tunes really are not the way to go. I know you're trying to do this cheap, but that's the one thing now to cheap out on.
Otherwise, I'd do up the whole kit, keep the stock injectors and tune on it (don't get into ANY boost) and drive it somewhere to install the injectors and tune.
That's about the cheapest you can do it.
Last edited by HydroStream6; 11-14-2011 at 06:31 AM.
11-14-2011, 09:36 AM
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If you look closely at the cheap ebay t70s they aren't a 70mm turbo most of them and in the low 50s and too small for a v8.
Most of the cheap turbo crowd say to go with the gt45 with a 1.05 a/r housing.
Most of the cheap turbo crowd say to go with the gt45 with a 1.05 a/r housing.
11-16-2011, 06:28 PM
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I know mail order tunes aren't best, but they do work well. I've been running one in my dd Legacy GT for a few years now. And on my second $250 ebay turbo. The last one lasted 20k miles, I can't complain. Has anyone run a turbo on stock fueling? What setup and how much boost? I would like to get it setup and running and then upgrade fuel later.
11-17-2011, 04:02 AM
#5
Does the LGT have a home-built turbo kit? Aftermarket gears? Bigger tires?
It's usually much easier to do canned tunes on cars that are close to stock or have known bolt on parts. When you do things yourself and add custom one off pieces, its not as easy to do a mail tune.
It's usually much easier to do canned tunes on cars that are close to stock or have known bolt on parts. When you do things yourself and add custom one off pieces, its not as easy to do a mail tune.
11-17-2011, 07:35 PM
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LGT isn't even close to stock or off the shelf. Different intake manifold, injectors, intake, downpipe, exhaust, some port work, STi-fitment turbo, fuel pump, lightened flywheel. But I can datalog the LGT and send them back to the tuner for adjustments. Honestly I drive the Silverado about 1000 miles a year, I just need a tune the has decent driveability. I don't know of any reputable LS tuners in my area. I live in north central Maine, and there isn't much of a car scene here.
11-17-2011, 08:56 PM
#7
I've built lots of turbo kits for those trucks 
Check out performancetrucks.net, the sister site to ls1tech.com. Plenty of boosted trucks like yours on there as well as several mail order tuners with experience tuning boosted trucks.
Oh, and your gonna need at least 43lbs injectors for up to 450rwhp. The stock 24lbs injectors will barely keep up with a cammed 6L.
Check out performancetrucks.net, the sister site to ls1tech.com. Plenty of boosted trucks like yours on there as well as several mail order tuners with experience tuning boosted trucks. Oh, and your gonna need at least 43lbs injectors for up to 450rwhp. The stock 24lbs injectors will barely keep up with a cammed 6L.
