Blacktop trumpet/intake question(s) (UPDATED)

[Bling]

Search done, and found lots of info regarding that 'H' word however I still have some queries.....

Took the car for a spin before without the intake plenum..(only a quick spin, and no dusty roads...) ... and I REAAALY like the sound the car made!!! So i want it permanently setup...

What problems will arise from taking off the intake plenum and just running the 4 stock trumpets with foam filters on each (or similar filters). Will there be any AF ratio problems due to the sensor in the intake line not being used?

OR

Will the engine run sweet as? I THINK from what I read that it won't perform as well as factory, but it just sounds soooooo nice

I've seen the aftermarket trumpets available to bolt on to the backtop/silvertops...... however, if the factory plastic ones will work fine with filters don't see a point in changing them.

Can anyone WITH KNOWLEDGE or EXPERIENCE on such matters please advise me as to whether or not to go down this path, and any pitfalls I'll run into.

Cheers

[Mr Revhead]

1st one i can think of is the power loss from all the hot air youll be sucking in.

[Dell'Orto]

We did it to one of the guy's here car....it didnt run too well after a while, went a bit lumpy until he put the intake back together, then it was fine.

[Adamal]

Trumpets really narrow down your power increase to a limited rev range.
They're not really ideal for a street car. In a race car, sure, because they'll be at a length to give bigger power figures at higher RPM, which is where'd you'd spend most of your time. On the road, you're going throughout the rev range all the time.

How long until RedMist spots this I wonder?

[RedMist]

Not long

If your after sound..... then go for it. I can't see a reason why it should cause engine damage, so long as you make sure the socks are up to the filtration. I only run K&N with prefilters, however you'll never go through the shit I do in a decade what I do in an hour. You might also have issue with mating the socks to the standard trumpets as they aren't round.

But hats off to you for admitting the true reason you wish to remove the airbox.

You only loose one Helmholtz resonance, although its an important one, it shouldnt put the brakes on the performance of your blacktop... too much.

[Bling]

Cheers for info,

will look into it further

[GGnz]

Just curious but are you lowering your car on TRD's? Also is your levin turboed?

[Rob]

That sensor in your intake plumbing will probably be your intake air temp and it would be a good idea too use it some how

[Bling]

Just curious but are you lowering your car on TRD's? Also is your levin turboed?

not turbo'd

going to get Cobra springs to lower the levin

That sensor in your intake plumbing will probably be your intake air temp and it would be a good idea too use it some how

Yeah i'll look at relocating it to behind the trumpets I i get serious about setting this up

[4AGE 8U]

your car will blow up! i did this to my levin and found that it had made the car slower especially on hot days

[Monster_Magnet]

Ok i own a silver top air flow metred 20v 4AGE my friend owns a BZG we took the intake off the back and left them open.

Then I brought the blacktop induction box and mounted it to my silvertop.

Cause there bigger and they don't quite fit but with a drill they do!!!8O

next comes the drag race his black top before we did this used to eat my levin we dragged and I won so he wanted his blacktop plenum box back so i sold him the silver top one and I now its a dead heat

He is still trying to get a blacktop intake box.

Duz any one know what the funny trumpets in the box are for???

Should i leave them??
or
pull them out???

[Lanius]

Duz any one know what the funny trumpets in the box are for???

Should i leave them??
or
pull them out???

Click on Search up at the top of the page, type in "trumpet" and press "enter". Oh, and between now and then, try to avoid RedMist

[tomo1985]

I took the chamber off on mine and bought some uni filter socks they work mint on the factory trumpets. The car did feel a lil slower but the sound was great. Now running a k&n filter and pipe as needed to tap the nos in.

[Bling]

yeah its a great method to piss the neighbours off without having to part with $$$ I have found!!!

yeah its not as fast, but i find its only marginal, it revs so freely thats for sure.

tomo1985: want to sell the unifilters??

its all about the noise really

[CozmoNz]

Ok i own a silver top air flow metred 20v 4AGE my friend owns a BZG we took the intake off the back and left them open.

Then I brought the blacktop induction box and mounted it to my silvertop.

Cause there bigger and they don't quite fit but with a drill they do!!!8O

next comes the drag race his black top before we did this used to eat my levin we dragged and I won so he wanted his blacktop plenum box back so i sold him the silver top one and I now its a dead heat

He is still trying to get a blacktop intake box.

Duz any one know what the funny trumpets in the box are for???

Should i leave them??
or
pull them out???

im not going to say much more

[RedMist]

Should i leave them??
or
pull them out???

Hey cool, not only someone who cant use the search button, but also can't read the other posts in the same thread.

Edited as it got really cutting from here.....

[Bling]

how it looks.....



got filters and shes all go!!!

relocated the battery and air temp sensor, removed all factory airbox ducting / resonator box and plan to have some new ducting in place when I get time.


I now have 2 'redundant' air lines, both of which were plumbed into the factory plenum (pictured below)



from what i've read, one is a vacuum hose and the other ISC hose (whatever that is)

my question is this, do I need to filter these hoses, or do they not require filtering?

chur chur

[Si]

http://members.mk3supra.co.nz/main.php? ... alNumber=2


bling bling !

[eightytrueno]

this is our home (well , mates work) made attempt at some trumpets, as i had a budget of $0 for new parts for the car

[Bling]

nice, they on the hachi in ya garage i'm guessing?