trubo inlet size????

[sassan]

I have an 87 turbo supra and im thinking about making my own hard pipe that goes from the maf to the turbo intake cause buying one is way to costly. So i wanted to know what size is the inlet of the turbo and what is the size of the opening of the maf? I would check myself but im out of town n nowhere near my car at the moment and im posting this from my phone so yeah

[87hilux7mge]

if it is the stock turbo and KVAFM (karman vortex air flow meter, your car didnt come with a MAF) then the kvafm outlet is 3" and the turbo inlet is 2.75", by my caliper measurements.

keep in mind youll have to put the hose bungs on as well, so very good rubber grommets or welded bungs. id go welded if it were me, or at least braized.

[sassan]

ok thanks for the info. i dnt wanna keep the KVAFM if i dont have to so i was thinking of getting an afm adapter insted i found a few online. but my ? is would that be a good idea seeing as im going to be switching to the lexus maf as soon as i get 550cc injectors. would this setup work or am i wasting my time?
the set up would look something along the lines of this: http://www.amazon.com/gp/product/ima...tomotive&img=6

[Green7mgte]

In order to do away with the kvafm you have one of 2 options..
install a 1jz or install a maftpro.
the only part your going to hardpipe is the accordion hose. which while looking cool offers no real benefits and possibly resulting in heat soak.

your talking about doing a upgrade using the kvafm honeycomb housing off of a v8 lexus. which allows 15% more air to enter the turbo.
were you will have to either 1-get a safc and tune it using a wideband (total about 4 hundred bucks) for whats called a piggyback or 2, acquire a set of 550cc low impedance injectors, going standalone. Again about 400 bucks (i think, been awhile since I priced them.)

either way the only feasible reason to hardpipe is going maftpro, were you no longer care to make use of the different hoses coming off of the accordion hose.

those pictures of the product you wish to purchase won't work in your 7mgte.

the housing your black box (kvafm) sits in, is specially designed to swirl the air while its being metered. hence the name karman vortex air flow meter. Doing away with the honeycomb housing will make your car run like crap, if run at all.. your only real option is going MAFT. you will alway need a way to meter your air coming into the vehicle. You do have options on how you choose to meter it.

[cre]

To clarify what I think may be a point of confusion Sassan; The 7M-GTE uses a KVAFM (Karmann Vortex Air Flow Meter). This is a VERY different type of air meter and in no way is it related to a MAF.

[87hilux7mge]

that was what i was trying to communicate haha. man i suck.

idk if hes doing the hard pipe just for looks, sounds like he needs a replacement and the rubber flex pipe is farely spendy. so if its a fix to get the car running that doesnt involve duct tape, id say itd be ok for the time being. but i dont have a gte so... eh.

[sassan]

thanks for all the info now i see where i was wrong at lol

[cre]

By the way... A couple members have posted links for replacement turbo inlet hoses (OEM style) for around $45 to $50.