Can you put a blow off valve on a supercharger...like you could on a turbo-charged car? What types of modifications can you purchase for a supercharger?

i love the way a BOV sound when shifting or revving. vroom psss hehe

There's no need for it, as the engine slows down, so does the S/C, thus no back pressure.

Good question though. :lol:

:twisted:

yeah.. SC is belt driven unlike turbo, but some SC do use a BOV

you can. like the above states, on some superchargers there isnt a need, but you CAN add one if you want to. Don't know what it'll do, but you can...

On superchargers that build boost with rpms (like turbos) you can add BOVs and i believe that most if not all the kits include some kind of pressure release valve.

one of the main reasons of the BOV is get rid of the excess pressure... imagine blowing out of a straw really hard then to stop blowing.. someone covers the end. that's no blow off valve... now imagine the same thing... then to stop blowing and someone closing the end, but leaves a little pressure controller opening to release the excess air pressure. for example it only opens when you blow normal to hard. otherwise it stays shut and lets the low pressure just circulate. This excess pressure is bad for mainy reasons, and to get into that would be a whole 'nother thread.

The whole BOV thing is get'n kinda silly. It's not there to make cool sounds, it serves an important role on a turbo charged engine. As RedBox explained. Skirts, spoilers, spliters etc. oringinally served a role also, but now everyone usses them for image. Form follows function people. Sheesh.

I wouldn't be surprised if there is a little chip with a speaker ya can buy that hooks to ur engine and chirps. lol

a blow off valve isnt really useless its purpose is to release pressure from the supercharger which allows the supercharger and engine to last longer.

Could always just hook this up. :D
Listen:
http://www.takakaira.com/accessories/nightpager/type2.wav

http://www.takakaira.com/accessories/nightpager/na_blowoff.jpg

[/img]http://www.takakaira.com/accessories/nightpager/nightpager.html

What type of TRD Supercharger? Roots?

No one serious about S/C uses roots design anymore... They're pretty showy and inefficient...

As for BOV, this is why a lot of people even WANT a trubo.... They don't know what it does, they have no idea how to properly take care of a turbo, they don't even know that you have to put 91 octane in the damn car... All they know is that if it goes psshhheww, it goes faster...

I hate it when I meet people like that... I rather have a recirculating BOV just so I don't hear nothing... The sound of the spool is what gets me going because you're actually MAKING power during THAT sound...

No one serious about S/C uses roots design anymore... They're pretty showy and inefficient...

As for BOV, this is why a lot of people even WANT a trubo.... They don't know what it does, they have no idea how to properly take care of a turbo, they don't even know that you have to put 91 octane in the damn car... All they know is that if it goes psshhheww, it goes faster...

I hate it when I meet people like that... I rather have a recirculating BOV just so I don't hear nothing... The sound of the spool is what gets me going because you're actually MAKING power during THAT sound...


You are SOOOOOOOOOOOOOOOOOOOO RIGHT!

Next thing you know people will be puting empty NOS bottles in the trunk just to look cool....

OH WAIT..... The ricers already do that....

Truth be told: If you don't know what a turbocharger is or how to maintain one then DON'T get one, unless you are willing to learn. If you want added prefomance just go for the TRD supercharger. All you have to do with that one is take it into MR. Toyota dealer and say "Give me that TRD supercharger" and *POOF* your all set.

And if you really want the BOV sound..... Just load up on some Taco Bell :wink:

I was just told by a reliable source that:

The Scion tC will utilize a Vortech SQ-trim blower. First time TRD has ever utilized this type of supercharger. The car made 220fwhp at 6 psi.
Damn I'm getting excited! Now I wish that it came w/ a limited slip dif.

you can bet a lsd will be soon to come
220fwhp holy balls

btw what all do you have to do to a supercharger to keep it running smoothly and all that jazz

I was just told by a reliable source that:

another John Kerrying?

220 whp my ___ :D I can bet you if the tC is going to be 220 bhp I would even be skeptical...

I heard from a reliable source that the tC will have a RWD mod and sport 250 whp with a twin turbo kit comming next Jan...

In order for you to keep the S/C running happy, you just have to make sure you fill it with S/C oil... Thats what my friend had to go through with his MR2 at least... There isn't much maintenace if it's factory direct... You just drive the car and make sure you change the oil... Turbo don't have this however, but turbo tend to need more care if you mess with the boost...

i think with exhaust and a intake for the supercharger it will be like 210
then crank up the psi to 9 or so and then its gonna be a fun little car

hrm... sorry i just dont see it...

look at the s/c for the xb it ads 30 - 40.. or was it 40 - 50... now lets just bring it over to the tc... 160 - 30 ur only at 190... 40 200,,, 50 210... i dunno okay maybe its possible... im skeptical when i see it i'll believe it.

at least 200hp would be nice with the factory SC.

TRD Supercharged 3.0L Engine
Maximum hp Gain @ 6000 RPM +70 hp
Maximum Torque Gain @ 6000 RPM +62 lb.ft.
Peak HP Increase +50 hp (197 stock vs. 247 S/C)
Peak Torque I +25 lb.ft. (217 stock vs. 242 S/C)

would be nice... and with the weight.. i wonder how it'd compare to the srt-4... i needa get over this bs... i got myself into enuf trouble with my 03 mazdaspeed protege 3 tickets in 3 weeks and that was enuf to sell me in im going slowstylishbox and with starting a family in a year or two.. the carseat will look nice in the box... and yanno whats sad,, if i kept the msp.. im not so sure i could keep myself from racing even with a kiddy in the car.. :( so give me some props for steping out.

coupe2 what are you talking about LOL, when did a 3.0 engine come into this?

As for the rest of you... That person said 220 WHEEL HORSE POWER... That will NEVER happen....

A stock 220 whp tC would be far fetched... it'll probably be what 250 at the crank?

coupe2 what are you talking about LOL, when did a 3.0 engine come into this?

As for the rest of you... That person said 220 WHEEL HORSE POWER... That will NEVER happen....

A stock 220 whp tC would be far fetched... it'll probably be what 250 at the crank?

well average is a 10 - 15% loss from the crank right... so

at 10% loss its hp 242 at crank i think...

at 15% loss its 253 hp at crank... i think i did that right....

Kauss....the turbo charged 4 cylinder w/ 260 hp, 4 wheel drive, is already available in the Toyota Caldina overseas.

Click on link

http://freett.com/stjcorp/teamndm/garage/caldina/

That would be nice if Toyota decided to drop that engine in the TC.

For those of you who can read Japanese

http://www.toyota.co.jp/Showroom/Al...lineup/caldina/

I'm not saying 220 whp out of a 4 cyl is impossible...

I'm saying 220 whp on the tC is impossible... Toyota is NOT going to make such a powerful S/C for their car... That is going to pump out ~100 more hp....

Whatever cars they have over in Japan benifits from better octane gas... (although the octane isn't 1:1 ratio) Their top gas I once read I think was about 95 or 96 US octane...

If I am wrong and Toyota does come out with a 220 whp FWD tC... I'll punish myself by not buying one... It'll be a horrible punishment since a car like that would be pretty bad ___ (bad fuel economy too)... But I know I won't have to take on this punishment...

I'm not saying 220 whp out of a 4 cyl is impossible...

I'm saying 220 whp on the tC is impossible... Toyota is NOT going to make such a powerful S/C for their car... That is going to pump out ~100 more hp....

Whatever cars they have over in Japan benifits from better octane gas... (although the octane isn't 1:1 ratio) Their top gas I once read I think was about 95 or 96 US octane...

If I am wrong and Toyota does come out with a 220 whp FWD tC... I'll punish myself by not buying one... It'll be a horrible punishment since a car like that would be pretty bad ___ (bad fuel economy too)... But I know I won't have to take on this punishment...

im not gonna hold u to your quote lots of people said that 15 psi in the protege on stock internals wasn't possible but i ran it everyday for almost 4 months and when it did pop i wasn't boosting 15 psi.. but rather 18. I proved them wrong. lets see whats released anythign is possible, but i do agree with you on one thing toyota will not be the one releasing the s/c or t/c for this car that will inable it to do that.. it'll be some aftermarket company.

Well, quote me if you want, but I never said 220 whp out of a 4 cyl was impossible... I just said that there is no way the tC will get that stock from Toyota....

hell, 10 years ago there weren't no 2.4L 4 cyl cars were there? Whos to say they won't make 2.8L 4 cyl cars in the future?

Well, quote me if you want, but I never said 220 whp out of a 4 cyl was impossible... I just said that there is no way the tC will get that stock from Toyota....

hell, 10 years ago there weren't no 2.4L 4 cyl cars were there? Whos to say they won't make 2.8L 4 cyl cars in the future?

your right... i was agreeing with ya in some respects... and 2.8 isn't far out of reach i read a article in i think modified mag about i think it was a honda that was bored out and final lt reading was 2.6...

I keep on wondering... With all this boring out of stuff... Why don't they just stop and get a 6 cyl... Thats just cheating...

As for the 2.8 L 4cyl... I think they don't want to do this because the pistons would be too big and heavy... Although I guess if they start making improvements the size and weight wouldn't be an issue...

Then again, they would have to change the valves to make them bigger to keep the compression happy...

Reminder: 220 hp is referring to a supercharged version, not completely stock (160 hp).

hell, 10 years ago there weren't no 2.4L 4 cyl cars were there? Whos to say they won't make 2.8L 4 cyl cars in the future?

Well, 21 years ago, there were already 2.5L 4cyl cars out. Getting 150HP. By 1987 that 2.5L was up to 188HP, N.A.( the turbo version was at 250HP 258Tq, 162mph top speed) I drive a 1990 3.0L 4cyl car that gets 208HP and 207Tq, stock, N.A. and it gets about 19/27mpg for gas. 0-60 in 6.5 sec and a top speed of 142mph. I've had it up to 140.

3.0l 4cyl? what car is this?

My Porsche. Decent price/performance ratio nowadays, about 11k for convertible, 8k for coupe. You might spend that much just on upgrades to get a civic riced out enough to get that performance, though it still wouldn't have the handling from a perfect 50/50 weight distribution, and it wouldn't be rear wheel drive, and it would still be a civic... Off-topic a little again there. 2.5L 4cyl really isn't that amazing, you have to consider that it's just half of a 5.0L V8. 3.0L 4cyl is pretty crazy though, 0.75L/cyl, each cylinder is almost as big as a ricer's muffler :D

yeah, 3.0l 4 cyl is pretty crazy

coupe2 what are you talking about LOL, when did a 3.0 engine come into this?

Suppling known toyota supercharger numbers on a 3.0 so others could get an idea what the tC's S/C 2.4 might be capable of.

Can you put a blow off valve on a supercharger...like you could on a turbo-charged car? What types of modifications can you purchase for a supercharger?


The use of a bypass valve (OR BOV)

Is really for higher boost, when using a tiny pulley and creating more boost a person will want to get rid of the excess boost when decelerating.
It reduced heat buildup and elimitates compressor surge which was what i was sorta explaining above.


Oh yea guys did you know turbonetics has a turbo out for the TC(not exactly out yet, but its made).....I have pics :)

^^^ yeah i knew turbonetics has a turbo kit for the tC. i wanna see some pics.

if you want pictures of the turbonetic's tC turbo...go look at the post on the IAS tC w/turbo. Its on here somewhere.

if you want pictures of the turbonetic's tC turbo...go look at the post on the IAS tC w/turbo. Its on here somewhere.

I have a feeling he's already been there 309384234 times :D I know I've been to that thread at least that many times showing all my friends :D

i've been there like a billion times already and i have it saved in my computer. i just wanna see his pictures of the tc

centrifugal(vortech) superchargers make much power than roots style superchargers(Blitz sc for XB). 220 whp wouldnt be far fetched. take a look at the vortech kit for the 1.6l dohc vtec civic si or 1.8l dohc vtec acura gsr. the vortech kit for these honda motors make over 260whp w/ aftercooler. since the TRD kit uses a centrifugal supercharger you can add a front mount intercooler to more powr and you can add a bov. id figure if you add an intercooler and raise the boost to 8lbs....you would have over 250whp in the TC.

A little O/T, but has anyone heard about the turbonetics turbo setup for the tc. I saw the picture when it was posted and noticed that it said it was a dealer installed setup. Was wondering if any new information on it has come up.

I don't think your going to get an additional 100-110 bhp just by bolting on an after market supercharger.

People have been talking about getting 220+ out of a 2.4L that starts at a standard 160.

I am not a rice rocket guy but I have been working on hot rods for many years and in order to get that amount of power at the wheels (whp) you need to bleed off about 7-10% from a Brake horse power number.

In addition you have issues that arise when you start forcing that much air into the intake...for one, you run the chance of running the car lean...so some type of after market fuel injector system probably has to be bolted in.

Not to mention that the Cams are dialed-in to only breath so much...so lift and duration becomes another factor limiting the potential to create power...and we haven't even begun to talk about getting the spent fuel out of the engine. Headers would be a bare minimum in order to get that amount of increase.

Now the Mazda puts out 220 on a 1.3L Rotary....but it spins at 9000 Rpm to do it. As soon as they put an automatic behind it the power dropped to 190. Rotary's are known to be much better power makers than V or In-line engines.

I'm not saying it can't be done but I think your looking at spending more money on the engine than just bolting up a supercharger to get 250 hp at the wheels.

Any way IMHO

Brass

Now the Mazda puts out 220 on a 1.3L Rotary....but it spins at 9000 Rpm to do it. As soon as they put an automatic behind it the power dropped to 190. Rotary's are known to be much better power makers than V or In-line engines.

The thing that made the A/T drop in HP is the rev limiter... Otherwise the car would make the same power... There is no difference in the torque curve in either model... As for the Rotary making more power vs. V or IL, you have to take into consideration that the efficientcy is lower... The design is nice, but you're generally doing 3 cycles for every 1 cycle in a cylinder engine... Just because the physical size / weight is smaller compared to a cylinder engine, don't mean it's more efficient... Thusly, I don't think you'll ever find rotary in an econbox...

My only issue with pushing air into the engine will be the timing and the fuel delivery... I hope I can get the max out of an aftermarket turbo before the need to bolt on extensive engine management... Where are all the Camry guys to help out our little delima here?

as a rough calculation Corky Bell points out that you can do a % volumetric required... so take what you want and divide by what you have...

250hp / 160hp = 1.56

then multiply the decimal by 14.7 to figure the boost required...

0.56 * 14.7 = about 8psi...

and then there's the issue of detonation... so intercooling can be used to lower the intake air temperature, but this will not increase your power, it will increase your ability to use that boost...

this is not exact science, it is quick math... based on volumetric efficiencies... but you can bet safely that Toyota is not gonna make 8psi boost... most of their applications are running 4psi... 8psi will absolutely require an intercooler, which none of the TRD apps are supplying...

also, this is not wheel horsepower, this is flywheel... factor in the 10-15% drivetrain losses and you'll have a good estimate...