Hey guys, that is my first post here, I already read a lot of posts before and I didn't find one that could lead me to make a safe decision. Also, my knowledge of mechanics is not very good yet, still learning a lot of things.

I recently bought a 2g 1995, it has a different turbo installed and I'm not sure yet what is the car's HP but it is something very near to the stock values.

I'm looking to buy a BOV but I don't understand anything about the installation or what is recirculation, or how to do it. In my city, there aren't many options of performance garages so I have a lack of professionals to question and work on my car so before I buy something I need to know that any average mechanic will be able to do it.

So, going to the question I was initially between HKS and Greddy Type FV BOVs. I wanted to have the Greddy Type one but that will depend on what of them will have the easier installation.

Like I said I wanted something that would not give too much headache or would require too many changes/adaptations on the car, since our 2g and the Mitsubishis Evo's uses the same Engine 4G63, I thought that this kit would fit into our 2g:

https://www.maperformance.com/products/greddy-type-fv-bov-kit-03-07-mitsubishi-evo-8-9-ct9a

Is that true? If not, anyone knows a better option considering that the car is in stock?

Thank you very much for your help!

Recirculating means that you're taking the air that is discharged from the BoV and diverting it back into the charge system after the Mass Airflow Sensor. This is the stock setup for a 2G DSM and must be utilized so long as the stock MAF is in use. Failure to recirculate can cause the car to stall when the valve discharges air that the ECU has already calculated into the fuel map.

Vent to Atmosphere means that the air discharged from the BoV is, well, vented out of the system into the atmosphere. 2G DSMs will require a speed density setup and proper tuning in order to Vent properly. The MAF is typically removed from the system when going this route.

As for the FV. I have it on my car and I can say it's an excellent valve for the money (I paid about $100 less than what MAP has that kit listed). It is NOT a direct bolt on to a stock 2G UICP however. I utilized the Punishment Racing FMIC kit as the upper IC pipe is already flanged for a Type RS BoV. The FV and RS have the same flange.

Thank you for the explanation. How recirculating is made, is it by using a special tool?

"I utilized the Punishment Racing FMIC"

Even if is not a direct bolt on to a stock 2G, is it possible to install without buying a new FMIC kit? By only adapting a new flange?

Yes, there are adapters available to go from a stock 2G bypass valve, to a Greddy Type RS. That same adapter will work for the FV.

Do you have any pics of whats installed on the car now? Is it the stock setup for the current BOV? I looked at the link and I am not sure that what you posted includes the parts needed to make the greedy BOV mount directly. I had to use an eBay adapter and then the greddy recirculation fitting, NOT the one that comes with the BOV in the box.

Hey Dusty, I don't have the pics now unfortunately, as far as I know the car is stock with another Turbocharge, not the original one, I know it is one chilled with water. I believe the rest of the car is original including the BOV.

Can you share the links of what you had to buy to install it? or they expired already?

Thanks!

If I were you, I would start with all maintenance first. Make sure she is mechanically sound and running strong before any modifications.

https://www.dsmtuners.com/threads/dsm-maintenance-guide.476550/

But to answer your original question, you have a decision of running a BOV with a stock 2g flange or switching out the flange (via adapter or different intercooler piping) to match the BOV you want to run. For example, to run the Greddy FV, you will need a Greddy type flange.

Hey 990zdsm thanks for replying. I completely agree, I will be checking all mechanical components first the car is on the workshop right now switching/fixing everything it needs to be fixed, nice link by the way I will include some of them to the first maintenance step. They will put the car on the dynamometer to see the data.

Can you post a link to an example of a Greddy type flange that I could use the BOV?

Here is what you will need to make the greedy valve work but to make it recirculating you also need the second one. If the car has no mods done such as a GM MAF sensor "hack" be sure to recirculate it!

https://www.ebay.com/itm/EXTREME-PS...083772?hash=item20fec20d7c:g:T3EAAOSwuMFUkey0

https://www.ebay.com/itm/GReddy-119...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

This makes it so that you can mount it in the stock position and even use the oem recirculating hose.

Whoa amazing!!!

I'm pretty sure it does not have GM MAF sensor. I will talk with the mechanic guy on my city about these steps and parts and see if he knows what to do!

Thanks again!

It would REALLY help if you could just upload a pic of the setup . If you have the stock bov and intake routing then you definitely do not have the GM MAF mod. It involves hacking the stock MAF sensor and wiring in a GM MAF sensor into the intake near the throttle body.

Once I get to the car I will take and upload the pics, I promise! It will be around new year. I will not buy anything before posting them here!

Here are some pics and a video of my turbo, it has a problem they are restoring it.

https://ibb.co/vYfnpWs
https://ibb.co/DwjJ0W8

I just got back my Turbo from Turbo Garage, they basically brought it to life again.



Before