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By going with a van turbo is it just a cheaper way to up grade your turbo or could it handle more hp?
Thanks Roger
It's about a 1/3rd to 1/2 the cost of the 38r (depending on what you get it for and what options you put on it), and yes, it will handle making more power. I'm running about 450/1000 on mine... I'm into it for about 900 though -- about $200 for turbo, $300 for the rebuild kit, non-EBPV pedestal, and required custom outlet, and $400 for the ported compressor housing. You can plug your stock pedestal to save a few bucks there, and unless you're planning on making a lot of HP (or still surge after the WW -- highly unlikely), you can stick a WW on it to save on the ported housing.
Wow... my e99 has a big compressor housing, but a smaller exhaust housing. Why would having a bigger exhaust housing do? What does the Garret BB turbo have on both sides?
Doesn't Keith, Spdmpo have an 1.15 exhaust housing hes willing to deal with?? If I remember correctly, he took it off the market because nobody was coming even close to what he wanted for it, funny thing, sounded like a great deal to me, but what do I know..
What are these numbers 1.15,1.0, .84? Its it measurements? Can some one tell me what those numbers are for. Just trying to learn more about turbo 101. Want to do and up grade later and get more educated.
What are these numbers 1.15,1.0, .84? Its it measurements? Can some one tell me what those numbers are for. Just trying to learn more about turbo 101. Want to do and up grade later and get more educated.
Garrett has a bunch of good info on their website. Here is the answer to your particular question about A/R:
The smaller the number, the smaller the housing. Small exhaust housing is great for spool-up, but becomes an exhaust restriction at the higher RPMs (shooting the exh back pressure & EGTs up quickly). The Larger housing (like the 1.15 on my van turbo or optional 1.15 for the 38r) favors the upper end, but lags more than a .84. The 1.0 splits the difference. When I had stock injectors, I tried it out on stock tunes, and it was almost like not even having a turbo. Took FOREVER to spool up.
What compressor wheel? WW? It actually moves less air than the stock wheel, but is much better for surge control. I put the ported housing on mine, but kept the stock wheel. The larger exh housing helps a lot if you upgrade injectors, and/or tow heavy. Reduced EGTs and less potential for surge as well...
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