What about a 17/52 or 17/56 if you move up to a 17 anyways ?Go with a straight VNT17. The exhaust is usefully larger...
the 52 is probably a better choice. The 1756 spools significantly slower than a stock, but will make good power up high.I'm not looking for race car performance
HI,Boostlee, you say you are not looking to make a racecar, okay, great.
By upgrading to a 17xx turbo you will need to get a tune to get the engine to run properly, the vnt-15 is a fast spooling turbo and is quite happy with a tune up to 18PSI.
The x-man turbos mostly come with the VNT-15 outlet to eliminate fitment issues.
I have a VNT15/56 and use the stock piping; I live above 4600' elevation and I did not want to stress the turbo so my tune only goes to 24 PSI even though the turbo is capable of more.
If I knew then what I know now, I would have gotten a 52mm compressor wheel instead of the 56mm compressor wheel for faster spooling.
Does that cartridge bolt into the stock alh vnt15 exhaust manifold? The installation video link on that page shows Austin working on a vnt 17 manifold. The video could be generic, I suppose. But the manifold bores are different sizes, the cartridge will only work on one or the other. The reason I bring that up is because it sounds like it is for the vnt15 manifold, but the video shows him doing a vnt17 manifold cartridge swap.
I've been thinking about getting this. Would need to split the old turbo to fit this, and tune ofcourse.
I would think that vnt15 hybrid might ok for a cartridge only upgrade. Though there is still the fact that the tune needs to be changed and the diameter of the exhaust opening in the manifold is still vnt15. Turbo is going south on my truck. I may just replace the cartridge with a spare I have, or I may put the BV43 on. If I go BV43, I will be studying your posts and may be picking your braini wouldn't bother with anything smaller than a vnt17 size, at least for the regular old gen turbos. difference in lag with a good tune will not be noticeable between 15 and 17. 1752 will have no noticeable lag above 2200rpm or so, below 2000 rpm with larger than 17 turbos will start to have a little more noticeable lag, but not much. really depends how it's tuned
1.5bar is stated boost. So that would be just shy of 22psi, almost 5psi more than I run now. It is a worthy inexpensive simple upgrade as long as it holds up. With the exhaust side being the same I am thinking egt's wouldn't go down. I have to watch them as it is. Maybe tuning could help with that.A complete CHRA with a 49mm compressor wheel for $282.00 USD is a good deal compared to sending your own out for machining at $450 plus here in The States. You gain the ability to add 6 PSI more boost that you are running now, there is a huge difference power between 18 PSI of boost, and 24PSI of boost