Aftermarket parts are offered by a variety of vendors all trying to make a dollar from a product in this case a turbo. The turbo itself is a simple mechanical device comprised of fairly basic components. Over the years R&D has led to improvements in wheel design or bearing designbut really the same lump.
What is evident from this forum is how complicted it is to get the recipe correct. Must Boost early, boost over a wide RPM range, be reliable, fit the vehicle, be easy to tune, not too much back pressure but enough to drive the turbine only not too fast.
An old saying ...”if it sounds too good to be true it probably is “....rings true. We all want a good perfoming cheap turbo enough said. MMP, Gturbo, Mamba and a handful of other manufactures are trying to give us what we want some are cheap, some good value and others expensive.
Most performance modifications have a downside. After you,ve selected a vendor by price, performance, reputation, support and opions of our peers things are just getting started. Installation can get complicated...are you mechanically skilled enough? Tuning is also complicated. Supporting modifications or lack of can help or hurt your cause. Depending on the turbo you choose it could be too big, small, laggy or unreliable. Vendors will not always be supportive...did you pay for support?
I purchased a Mamba turbo td05-18g. 10,000kms later running 25psi. This truck pulls hard compared to stock, afr and egts are ok. it is alittle laggier than I hoped ...recently inspected the turbo, still tight. There were a few problems initially. Limited support. I feel it was a good deal. Look at my previous posts not all fun. This is my first diesel engine but not my first tuning experience. With the help of MUD my hdj81v is very satisfying to drive.
Did I think I was going to bolt on an aftermarket turbo and it would be perfect. NO. I hoped it would be reliable and make more usable power than stock without to much work. If it doesnt work or it blows up you have to remember it is aftermarket not TRD designed OEM part. Figuring out why it failed or doesn,t work as advertised is importanet to avoid the same mistake in the future. Sharing your situation is not easy either...emabarrassed, angry, dissapointed, feel foolish....that is normal. Share what you know about the problem and don,t worry about the fallout on this forum. There are plenty of knowledge guys here to help.
Sometimes you just have to move on. Discuss your results here on this fantastic forum keep the BS to a minumum. Maybe we will all learn something.
Definition POWER TO WEIGHT RATIO= The more power you get the longer you wait for parts.
Education costs money....the more it costs the quicker you learn.
Cheers from the Great White North
