Twins for a LS1, on a budget
Twins for a LS1, on a budget I just got off the phone with a local diesel supply shop, and it looks as though we will be building a twin turbo kit for my Z28 using turbos supplied by them. I was originally looking at running twin HY or HX 35 Holsets, but it looks as though we might run a pair of TO4s instead. The guy I talked to said that he is going to do some research and get back to me about what all he can get ahold of, and what will work out the best for my setup. What do the turbo gurus recommend for this setup? I intend to run a set of 6.0 manifolds, and external wastegates, although he suggested looking into running an internally-gated turbo to eliminate that hassle. I do not intend to run large boost numbers at this time, so I am wondering about the internal gate's ability to control the boost at a small level without creeping. I would prefer a V-band clamp for the downpipe, and he pointed out that most TO4s come with a 4-bolt flange instead. Also, this will be A/W intercooled, and I intend to run this whole setup at about 10-12 PSI on the stock shortblock for now, albiet with a set of ported 6.0 heads in place of the stock ones. Any advise on this adventure would be much appreciated.
If 10-12 PSI is the lowest ya are gonna wanna go then internal gates will be just fine. Restricting PSI with twins is alot easier as ya have 2 gates and hte turbos are smaller then a big single. I dunno how low you would be able to go but i wouldnt doubt 8 or lower would be acheivable. GL
John
John
Let us know how it turns out. I am also interested in a "budget" turbo setup, just a single though. Anyway I ran the numbers and it was going to be an expensive endeavor no matter how I figured it. I am just going to wait right now and do a turbo down the road. Good luck with your setup. Can't wait to see it
id get a turbo right your application.
try www.forcedinductions.com they can help select a turbo for your needs in your budjet range, think they have some low cost masterpower turbos that could work for you or precisions.
also if youron a budet do and air to air as air 2 water will have more cost in it.
try www.forcedinductions.com they can help select a turbo for your needs in your budjet range, think they have some low cost masterpower turbos that could work for you or precisions.
also if youron a budet do and air to air as air 2 water will have more cost in it.
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I've been putting a lot of thought into this 'kit' for sometime now. I relaize it won't really be cheap, I just don't want to get out of control. As far as the intercooler goes, I may in fact go with A/A, but i have intentions of at least eventually moving into a A/W setup. The diesel guy and I still have a lot of research to do before any of this even begins to get screwed together. I guess I just have a real intereest in doing things myself. Please keep the suggestions coming as far as part selection goes.
Just spend the money on a good set of heads and a nice shaft and forget the turbo garbage...no point in spending the same money to go just as fast with ten times the complexity...turbos are nice if you're really going after it...but for a mild setup like you want, just get a nice top end setup and call it a day.
Originally Posted by LTLHOMER
Just spend the money on a good set of heads and a nice shaft and forget the turbo garbage...no point in spending the same money to go just as fast with ten times the complexity...turbos are nice if you're really going after it...but for a mild setup like you want, just get a nice top end setup and call it a day.
If I was doing it again, starting from a stockish LS1 and turboing it on a buget I would make a crossover pipe that connects the stock manifolds and runs up to a proper size single turbo, get a tial Wastegate and BOV with a ebay A2A intercooler.
After that, all you really need is some high-z injectors, tuning, 2 bar map, few other things.
