Recent content by GDI Tech

Beware of McNally or the knock-off RX branded by McNally. They are the same internally as the genuine RX, but they are cheap made in China glued together and can fall apart with use like this example: The china copies have under the RX "extremeautoproducts" and you can see the top and bottom...

Hi Shabby, That unit was originally designed to be used in the ventilation portion of heavy machinery where it would trap and contain and return to the crankcase of a gear box or similar. If you return what a catchcan traps to an internal combustion engine, you are also trapping far more than...

Shabby. Got your PM but until I have 25 posts, I can't reply. I was unable to get the picture of the can you asked about, but I will state app. 99% of all we have tested are not worth installing, and several were unreal great looking and expensive, yet that was the extent. Can you send an...

Yes, I covered this in a few posts in this thread, but that is the main negative to the port injectors. They now create more detonation and more incidence of knock retard function pulling timing. This less power and less MPG. Then in studying these new engines with the port injectors added we...

Dead on correct Bruce!!! Here is GDI in a nut shell VS port injection. Port injection the fuel was introduced int he port of the runner of the intake manifold just before the intake port on the engine. It used pressure of 45-50 PSI. This also sprayed the fuel into the port just as the...

Hmmm, never considered that. Any manual cleaning you must make sure the valves (most of these engines have 2 intake valves per cylinder now) are completely closed in the cylinders your working on (bring to TDC) and you tape off the other ports where any have open valves so no debris can enter...

gpse, I got your PM but cannot reply until I have 25 posts. Wrote a long reply with detailed pictures and instructions for you, but lost it as it won;t let me PM you yet. On the EGR coking, the only real method is to disassemble and manually clean the circuits, and generally is best to replace...

This is usually not a warranty covered item, but some have replaced heads or sent out heads for manual valve jobs under warranty. Ford was for a couple of years replacing the cylinder heads so they could study them, but discontinued that. Price your correct on as well. The newer BMW mini engines...

One of the few actually effective PCV air/oil separation systems (most are only trapping a very small portion and do little to help) this stops approximately 95% of the coking by stopping the compounds from reaching the valves to begin with, but these require the owner to empty at least every...

Your onto an idea that could help, but the problem is the fuel would have to constantly spray the valve to keep it clean and cool. Once the deposits are formed, they are there to stay until a manual cleaning is performed. The entire premise behind GDI is to eliminate all combustible mixture from...

Ford just announced it is also adding in small port injectors for 2017 3.5L Ecoboost engine in an attempt to slow the coking formation. But to date, all the others that have done this for the past 4-5 years that we have examined still have unacceptable deposits forming.

Here is a BMW performance shop that works with the coking issues and solutions: http://franjospeed.com/ Try them! Great way of putting it. I always look at things from the engineering and industry side as huge, and you are correct. For the average consumer, they will only see this as...

This and the brush method are the two most common, and most effective ways to clean them. There are several factors that lead to this, and using a full synthetic engine oil is one of the better ones. This reduces the rate and severity, but does not prevent it. The example I posted of the new...

Every automaker has approached these issues in varying ways. pcgeek, please PM me so we can share data. I also work with each of these systems and can give you the actual real world results VS the claims of it being addressed. Lets go over the different types of solutions attempted, and anyone...

That is one area Ron and company have never understood or been taught. As great as they are on everything else they do, one of the best in the Country IMHO, they do not understand this like most tuner shops. Please share what you have now. Venting is NEVER good. You are correct on the...