forge bpv or hks bpv

[ndedomin]

I just don't know why forge cost less than the other bpv? Is it looks? Does it hold boost as well at the other BPVs out there? Is it because you gotta mess with the springs and shims?

Springs and shims do have something to do with the lower cost as opposed to other valves. For example, HKS and Synapse valves are more expensive, but they automatically adjust to all levels of boost. The forge has to be manually adjusted.

The HKS and Synapse valves are also Pull-Type valves, which tend to hold boost better in the long run since more boost actually tightens the seal. I believe the Forge is push-type.

 

[strytnyne]

hks has sequential valves

 

[Bonafide_Spd3]

So the valve is a rubber piece inside the bpv? Wouldn't it dry rot? So the more you pay the better the product? Or are you just paying for the name? Just like nike

 

[ndedomin]

So the valve is a rubber piece inside the bpv? Wouldn't it dry rot? So the more you pay the better the product? Or are you just paying for the name? Just like nike

In the HKS it is a rubber diaphragm that expands/contracts...I haven't heard of any issues with dry rot, but I'm not an expert on the HKS. In the synapse synchronic, it is a piston design that opens/closes depending on the boost.

The HKS and Synapse valves are both DEFINITELY better than the forge imho. However, for the price, the forge is a good valve. It all depends on how much you're looking to spend. In this case, more money does net you overall better products...but whether or not the extra $150 is worth it for the difference in quality is up to you.

 

[ericrapp]

Not to be a smart ass, I really am open minded on this. I realize Forge is a diiferent or even basic design. But what justifies 150 more dollars. It opens it closes and stays closed. And it opens fairly quickly depending on spring. Just wondering

 

[ndedomin]

Not to be a smart ass, I really am open minded on this. I realize Forge is a diiferent or even basic design. But what justifies 150 more dollars. It opens it closes and stays closed. And it opens fairly quickly depending on spring. Just wondering

It just depends on what you are looking for. The forge is an improvement over stock, but if you want the BEST BPV you can get, the HKS and synapse valves are better. They adjust to wider ranges of boost, do not need to be manually adjusted at all, and are pull-type. The forge is great if you want some inexpensive improvements to your car, but if you want to take your car farther and really invest in it for some future gains, the HKS or synapse valve would be a better option.

 

[Bonafide_Spd3]

I later on want to make over 300 whp in my car. That is my future plans for this car. I kinda wish I never got my extended warrenty though because I don't know if I will be able to do this with just bolt ons and not engine internals

 

[jam_asian85]

I later on want to make over 300 whp in my car. That is my future plans for this car. I kinda wish I never got my extended warrenty though because I don't know if I will be able to do this with just bolt ons and not engine internals

You should be able to make 300whp with a couple bolt ons

 

[ndedomin]

You should be able to make 300whp with a couple bolt ons

+1. With exhaust, intake, and some good engine management, you'll be getting pretty close to 300. You may need a few small add-ons after that, but you can definitely get 300whp with bolt-ons. At those numbers, you'll be fine with either the forge or the hks (or the synapse valve), but personally, imho, I would always go with the hks or synapse over the forge. It is more expensive, but you get what you pay for.

 

[UHATEIT]

look how easy it is to adjust the Greddy Type-S. Just turn the screw with an allen wrench, even tells you what direction does what haha:

the sound is SEX as well

 

[Bonafide_Spd3]

So you say the Greddy is a pretty good valve? It's a bpv right? I do like the hks. I just want a really good valve. Sorry if it's like geez... this guy can't make up his mind

 

[ndedomin]

If you like the hks, get it. Trust me....you won't be disappointed. Just make sure you get the bolt-on kit from Protege garage. It is by far the easiest to assemble that I have seen.

 

[UHATEIT]

So you say the Greddy is a pretty good valve? It's a bpv right? I do like the hks. I just want a really good valve. Sorry if it's like geez... this guy can't make up his mind

Greddy works just as good as the others, they each make their own sound. If you look on youtube for the gredy type-s the sound is addicting so you'll probably like it. I need someone to tape a driveby for me to show what this valve sounds like.

I also had the ebay imitation greddy which i think i posted the link for earlier. $60 for the valve and flange and works like a charm! Just makes a different sound than the real greddy so i got the real one for the whistle sound it makes. To me it all about the sound, as they all pretty much do the same thing and work just as well

 

[Bonafide_Spd3]

I think the greddy and the hks sounds the same. Am I correct?

 

[UHATEIT]

I think the greddy and the hks sounds the same. Am I correct?

hmmm. it depends on the car. Some videos are deceiving. But I heard an HKS on a twin turbo 300Zx the other day and it sounds like a bird chirping to me. But the Greddy type-s on my car it a very high pitch whistle.

I don't have anyone to take a driveby for me to show you my type-s sound. But this is a great example of how badass (or annoying depending on how you like things) of a Greddy Type-S on a Mazdaspeed Miata. This thing is freakin loud as hell:
http://www.youtube.com/watch?v=IPOEjAnQIlI

Otherwise if you don't want the "real" type-s you can get the ebay knockoff which is actually pretty nice too and cheap. It makes a completely different sound tho, but I loves the sound of the fake one too. Its like a more powerful version of the stock one. Here is a video of that on mine before I bought the real one later on just for sound purposes. It's louder than this in person:
http://www.youtube.com/watch?v=vrNwTfn-Vzk

 

[Bonafide_Spd3]

That doesn't sound bad, sounds alot better than the forge. The hks kinda sounds like our stock bpv. But probably alittle bit louder huh?

 

[UHATEIT]

The HKS makes the bird chirping sound. The first video is the REAL Greddy Type-S and gives you that very loud whistle (sounds better than HKS by far IMO). The fake greddy I posted my video of above is the one that sounds like the stock one but much much much louder. If you have an intake your stock one will be louder, but the fake greddy will make it pretty loud.

 

[Bonafide_Spd3]

Dang... Now I don't know which to get outta the two. The greddy does sound pretty good... I hate making decisions

 

[SPEEDYHANS]

If U Want To Here The Hks Bov Hit Me Up I Got It On And Im In Florida

 

[Bonafide_Spd3]

Thanks but I'm all the way up by p cola. I'll see what more people say about the two. All I hear about is the hks the most. Never even knew there was a greddy bpv til a couple months ago.