do any of you use an aftermarket version? I'm trying to find a good quality BOV with a nice woosh for a sound as well. I've been directed to Greddy and a few others, but what exactly do i need and what size will fit? Do i need taht flange pipe as well?
No clue why you'd want/need an import aftermarket BOV. The DSM BOV works just fine. But YES, you will need the mounting flange.
well i know the reason for a blow off valve is to unleash unwanted pressure and junk... but it's hard to beat that import BOV whistle...
you will need the flange. I would stay with Greddy, as I have had great luck with them on all my turbo vehicles up untill the TGP (havent installed one there yet).
Also, Rom, the reason a lot of people are better off with the aftermarket is adjustability. You can tune them to your specific application.
I was looking at this company http://www.turboxs.com/ and their sales rep said that the BOV-H or BOV-H-RFL would be fine. Not badly priced either. aftermarket BOVs can be really pricey it seems.
Turbo XS is ok at best. I would recommend the 1st gen DSM BOV before Turbo XS truthfully.
I'm going to get an aftermarket [probably Apex'i, Blitz, or GReddy] BOV once I get my FMI put on. I would also say that an aftermarket unit would be easier to weld on since you have the mouning flange readily available to you right out of the box.
When I had my DSM bov put on, my friend had to cut the flange out of the stock DSM pipe and then weld it to my pipe. A pain in the butt if you ask me.
havin an import bov doesn't matter!! the reason most bov are quiet and not shhhhhh loudly is the section that vents the compressed gases has a hose on the end putting the air back in the intake thus masking the shhhhh sound. DSM is fine and shhhh loud if you leave it open. I can't see payin $200+ for a new import unit. The cheapest i have seen is www.extrememotorsports.com
Like I said before, the biggest reason for going aftermarket is tuning. The aftermarket BOV's can be tuned, and once the volume/boost overcomes the spring that is in it, and starts to leak, the pring can easily be swapped. Most even come with enough different spring types to support up to 1000 hp. Also, most aftermarket ones are rebuildable. That means when it starts to wear out, it can be repaired instead of replaced. A stock BOV< even a DSM BOV will break down a lot faster than an aftermarket unit. DSM BOV is fine for a street car under 400hp, but needs to be crush modded to doso, which also weakens the valve. Don't get me wrong, I do run a crushed DSM BOV on my DSM, and currently one is going on my TGP, as it will only see about 280hp when done, but on a car that is going to be raced I would use the aftermarket BOV.
cool now i understand :D
If you are going for sound i would go w/ the rfl (real f-ing loud), i think it is supposed to be around 120 decibals at 12psi
I'm getting an aftermarket one because it would be easier to have the flange welded professionally and look good then having someone hack apart the dsm flange and then weld it to a pipe. That, and you can brag about having a blitz, apexi, greddy, whatever. :)
i run the newwer blitz :D its great it came with the horn and the filter the bov its self it a dual drive unit with the horn on it will the let revs open the lowwer port for a small whistling sound and at high rev the upper chamber is breached for the full swoosh when you let off its said on the blitz site to sound like a pro rally car bov i love it but i run the filter on mine it makes it a single drive witch it doesnt open under full throttle shifts anymore makes the return to full boost faster the horn opens slightly between shifts if your not in it so far as not to hold the vacume around 0 it will hold close to 18 psi i beleve with out changing the spring but i have allready put the 22psi spring in i had a blead off problem at the track i boosted in to the 18-20 range a few times on race gas but its nice i would check it out and if you send me a quoat from what ever local sorce of parts on a price i might be able to beat it i own my own parts biz andy
andy090482@aol.com
Wyld Fantacyz cc & parts
nice, if you dont' mind me asking, what did the Blitz cost you? I love the sound of that high pitched whistle then the rush of air. Not much can beat that.
mclaren18psi...
I am reading your sig and your screen name and it seems that you have a bit more boost than the normal performance chip without listing low compression pistons. Is it just in the words or are you actually running 18psi?
Do you have any pics of the CO2 intercooler chiller? 8)
Quote from: TGPilotmclaren18psi...
I am reading your sig and your screen name and it seems that you have a bit more boost than the normal performance chip without listing low compression pistons. Is it just in the words or are you actually running 18psi?
Do you have any pics of the CO2 intercooler chiller? 8)
A resistor in the right place makes the fuel cut all go away. HKS makes a thing called fuel cut defencer, and is basically a resistor in a cool black box that does exactly the same thing.... And 18psi is not far out of the question, unless his motor is completely stock. But if he's running a wet kit, he's probably got some internal mods, or at least some sort of metal head gaskets. I ran 18 psi on my dsm fine even on the stock engine. Also, the TGP has slightly lower compression than a stock GP due to some of the mods McLaern had to do to make the turbo work.
how much of a improvement is a co2 charged intercooler than a watercooled intercooler....or would it be good to use them both in conjuction? 18psi.....i just wish I could get 1 psi as of right now
The water cooled unit doesnt cool as well after 2 passes, and requires a tnak of water that is substantially heavier than a c02 tank. The co2 system cools faster, and doesnt suffer from the coolant being recycled and heated like the water cooled units do. Downfall to co2 is the bottle has to be refilled, but usually about as often as a NOS bottle. Cost is $.08 an once.
sounds like its the better way to go....i might have to do that once i actually figure out the basics of this freakin car
I would also look into a better IC.
would i want a bigger one or just one of better quality? Im also putting a T4 turbo in so i guess bigger would definatley be the way to go
Both would be a good idea. A 3rd gen Supra intercooler would be a good addition if you are going to T04
are bigger I/C's just plug and play, or do they require some modifications?
Will require some modification, as well as some plumbling changes. The Supra FMIC will fit the nose of the TGP with some work, and the extra piping isnt that hard to run. We did one on a 91 Sunbird, should be close to the same.
The C02 chiller, i've been considering doing that, do you have it set up so you can just flip a switch and the valve opens and the co2 sprays?, could you explain what you did? Thanks,
i have spiked to 20 but i can hold 18 in second gear thats with 100 octane a blitz id meter and boost controller with the chiller on and on nos that is now gone my car was broke in to at a club after a show they got my id meter the boostcontroler both my co2 and nos tanks the 4 gallon fuel tank i bought to use in a squerter set up and about 70 cds the head unit and a 32x7x2.5 ic with end tanks that was in the trunk what they missed thought a 35mm tial wastgate not a car person? and a turbo header for a b series