TURBO / BOV SUGGESTIONS???

[RIPCAT]

I currently have a T3/T4 turbo but I think its a little too big for my car. It takes forever to spool up and the only time I have any blow off is when I'm constantly red-lined.

I want a decent sized turbo that will spool up nicely, sound great, and still deliver the boost I desire

Also, any suggestions on a nice BOV?

[Gabes13]

I heard that s15 t28 was pretty good.

As for bov... I think the hks is over-rated.I like the greddy rs one better

[AZ89two4Tsx]

From what I've heard from the guys in the KA-T forum (where this thread should be ) a T3/T4 is perfect for the KA. But if you want quicker spool, go with the T25 or T28, duh.

As far as bov's, I don't care if people call it rice/overplayed, I like the hks ssqv. The Greddy ones sound nice as well. It's pretty much personal preference. Also, are you recirculating or venting it? That has an effect too.

Oh btw, I'm assuming this is KA you're boosting?

[Flicktitty]

T25 T28Ct26etc.

BOV - HKS SSQV, i don't give a screw if it's boy racer/played out/rice. it does the job better then anything else......unless you go Tial but thats some more money..

[RIPCAT]

From what I've heard from the guys in the KA-T forum (where this thread should be ) a T3/T4 is perfect for the KA. But if you want quicker spool, go with the T25 or T28, duh.

As far as bov's, I don't care if people call it rice/overplayed, I like the hks ssqv. The Greddy ones sound nice as well. It's pretty much personal preference. Also, are you recirculating or venting it? That has an effect too.

Oh btw, I'm assuming this is KA you're boosting?

Yeah sorry, its a KA. I am venting but the BOV I have right now is a POS. Im not sure what brand it is, it came with the car but I am sure its a knockoff.

[tEknoS13]

GT28RS and Greddy RS bov.

[Logan76]

Stay with the T3/T4, try to find out some more info on what turbo you have on there, and the exhaust A/R. Is it possible you dont have your bov adjusted correctly? Unless your getting compressor surge I would say that your good. How many lbs of boost are you running?

[S14toRPS13]

Is your bov adjustable. I'm not sure about yours, but with my blitz bov, I had to play around with the adjustment to get it just right. Stiffening it up too much causes compressor surge. Softening it up will get the cool woooosh, but it causes stalling. I'm not sure if yours is the same way.

[adrianfromthecastle]

I had the Greddy RS bov... it sucks for venting. At stock boost, it did me no justice. With both springs in and at its softest setting, it wouldn't open. With 1 spring in and at its hardest setting, it still wouldn't open. Then with 1 spring in and at middle to low setting, I'd stall when tossed into neutral too bluntly... I was never satisfied.

However, I switched to the HKS SSQV. It worked great vented. No need to adjust anything, and it closed and opened when I wanted it to. No stalling whatsoever. I have really no complaints about them (other than that everyone else has it)

As far as turbo goes... my fav is the gt2871r .86It's a bit more laggier than the .64, but the end result is a slight more power... but regardless, its might be more responsive than your previous t3 setup

[Logan76]

I agree with adrian if you do decide that getting a smaller turbo is a "must" the GT2871R is your best bet, and you can get it with a T3 flange so you dont have to get a new manifold.

[DevilMB3017]

A T3/T4 turbo will take longer to spool, but move more volume of air and lower spool.

So you might only get lets say 5 lbs at 4K RPM, but your moving way more air then a T2-flange turbo at even 7-8lbs at 4K RPM. And we all know more air=more power... right? Right.

The HKS SSQV is possibly the easiest BOV to use. There are 0 adjustments possible - so it always is working properly. It might be "played out" but thats because it works the best.

[RIPCAT]

I looked into that SSQV BOV and daaaammmnnnn..... it sounds nice

I think I might keep my T3/T4 turbo and get that BOV. I'm hoping I'll have better blow off with that.

[480sx]

Saying you have a t3/t4 really tells us nothing dude.

You could have a t3/t4 with a 62-1 wheel and a P trim 1 ar housing for all we know.

Or you could have a small t3/t4 thats blown. Or your wastegate is faulty, or has a low spring in it. SOO many different things here that could be causing your issue.

First, figure out what kind of turbo you have and who makes it.

[DevilMB3017]

I looked into that SSQV BOV and daaaammmnnnn..... it sounds nice

I think I might keep my T3/T4 turbo and get that BOV. I'm hoping I'll have better blow off with that.

The reason I suggest it isn't for the sound, it's because there is no adjustments to make. There isn't anything to mess up or break or anything to worry about messing up...

[AZ89two4Tsx]

I had the Greddy RS bov... it sucks for venting. At stock boost, it did me no justice. With both springs in and at its softest setting, it wouldn't open. With 1 spring in and at its hardest setting, it still wouldn't open. Then with 1 spring in and at middle to low setting, I'd stall when tossed into neutral too bluntly... I was never satisfied.

However, I switched to the HKS SSQV. It worked great vented. No need to adjust anything, and it closed and opened when I wanted it to. No stalling whatsoever. I have really no complaints about them (other than that everyone else has it)

As far as turbo goes... my fav is the gt2871r .86It's a bit more laggier than the .64, but the end result is a slight more power... but regardless, its might be more responsive than your previous t3 setup

Sooooo....with the ssqv there is no NEED to recirc it? I love the sound. Sorry for the fanboyism, lol.

[480sx]

Sooooo....with the ssqv there is no NEED to recirc it? I love the sound. Sorry for the fanboyism, lol.

You dont have to recirc it, however its going to backfire between shifts and stall out when idling down after boost if you dont.

[adrianfromthecastle]

You dont have to recirc it, however its going to backfire between shifts and stall out when idling down after boost if you dont.

I will however say that the stall out isn't going to be as bad as any other non-pull type BOV.

Pull type bov's win in my book.

[AZ89two4Tsx]

So recirculating is the better option always right? I was considering a blow-through setup, but I don't think I care that much, lol. How much quieter are recir'd bov's?

[480sx]

You still hear them quite clearly, i recirced a customers car with freaken 3/8ths inch thick tubing and it was still clearly audible. Recirc is the way to go for a daily, trust me.

[Logan76]

I ran atmospheric and I didnt have any stalling issues, maybe a little dip in idle or so but never a complete stall out, that was with a Greddy bov.

[AZ89two4Tsx]

You still hear them quite clearly, i recirced a customers car with freaken 3/8ths inch thick tubing and it was still clearly audible. Recirc is the way to go for a daily, trust me.

What the norm for diameter as far as tubing goes then? Around 1/4 I'm assuming?

[480sx]

No, the recirc fittings are usually about 30mm. They vary from company to company, but none as small as 1/4th, your talking about a lot of air that needs to be moved.

Tial makes the best all around BOV's on the market IMO, and through many tests. They have a new one that looks like a bong, the Alpha Q which allows recirculation. They are pricey, but very high quality BOV's.