SHE NEEDS MORE AIR
I have an s400sx 82/87/1.1 turbo. But I still have tons of smoke all threw the power band. I need more air and was hoping someone could advise me on either a set of compounds or twins. Maybe another s400? Maybe a small turbo that will compound well with my s400?
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Tou run an 82/87 as a single on a twelve vale and are upset it smokes? Um....goals with your truck?
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Im suprised there is even a power band to mention with such a big turbo
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Steerable driver. Not daily driver more Sunday driver maybe try it in a truck pull. Never done one. That's actually down sized from what previous owner had on it he had an s500. He was a younger guy was trying to build a steerable pulling truck. The s400 currently spools around 2400 so from 2400-4k you got lots of pull. But driving threw town/ highway cruising speeds it doesn't really spool. Terrible mileage for a Cummins. 12-13 avg I need to get a new pyro for it cus the one he had in it was dead when I bought the truck. Only had the truck for a couple weeks. Maybe a s300 s500 compound setup? I don't think twin 300s would move enough air for the top end.
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Originally Posted by turbo2332
(Post 1129919)
Tou run an 82/87 as a single on a twelve vale and are upset it smokes? Um....goals with your truck?
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You have much to learn. I bet you dont have 650 ponies... loose the 5x20's put some 5x16ish injectors in it. If your dead set on an s4 put a 64/83/.8ish something on it with a t4 foot. Your so far away from a good running street truck its hard to help you here buddy. Way to much fuel and way way to much turbo
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Compound an s3 into an s4 if compounds are in your future. More timing = slower spool.
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its hard to accommodate that big of a turbo lol
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Build update. went down to a 66/81/.9 spool is much nicer but I have a lot of detuning to do fuel side. Just a side note. Why doesn't anyone run like a 81/82/.9 I ask cus I built one with spare parts and took it for a test run before putting on the other turbo. Spool was actually rather quick. Decent power band from what I could tell without even pushing it. Seemed like it has a lot to give.
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