What are these throttle bodies (pic)?

[fivebob]

i dont think the e 153 would handel the 600 hp tp well
whats the box uesd on that engine ??

From what I hear The E153 handles that sort of power quite well, the axles however do not.

The Ferrari engine uses it's own proprietary gearbox which is underneath the engine and driven by a set of drop gears off the clutch. From what I hear they're not bad, but can be a bit temperamental if you rush the shifts.

[vvega]

yeah ive herd something on the axels
the inboards cv's look very substantial but the drive cv's look spindly in coparason

herd of any inprovements ??

v

[fivebob]

fivebob, can i tell him what it is?

Please do, seems he doesn't quite understand my hints. Doubt that F105A would mean much to a Toyota owner either.

go 2nd hand, they are easy to find. if ae101 ones are ok, i can do as many as you want for about $130-150 each. blacktop ones are as i said, a bit more.
keep looking, they're out there

I'll keep looking, as I probably want blacktop ones. Anyway if I can't get some secondhand it's good to know they are available as a seperate item, though somewhat pricey I'd imagine.

[Mr Revhead]

i beleive its a ferrari 308. but im not good enough to pick the EXACT model such as gtb or gts etc

ill price em tomorow. just for shits and giggles

[fivebob]

Interestingly the stock Altezza intake is slightly smaller than 45mm at the narrowest point, but the actual ports are substantially larger than this (oval 53 x 43mm) and are not drastically tapered as they run down to the valves. Dosen't really make much sense to me.

Makes sense if you consider that the venturi is there to keep the air at maximum velocity around the throttle plates, the throat ahead of the valve does a similar job, so the air is sped up, slowed down, and sped up again. Not sure if that the most efficient way of doing things, but then you really need a Gen II head to get max flow, now don't you

Oops sorry wrong board, please ignore my last remark as I was overcome with idol worship for the Gods of the MR2OC board

[fivebob]

i beleive its a ferrari 308. but im not good enough to pick the EXACT model such as gtb or gts etc

Yep indeed it is, well mine is anyway, the first pic I posted if from the Freedom ECU site in Japan and is actually a 328 engine but you can't tell them apart easily, the second is from Bob Norwoords site and is a 308 GTB, which I'd much prefer to my GTS, but it was the right price so I can't complain

ill price em tomorow. just for shits and giggles

I'm sure they'll be some horrendous price, but hey Ferrari owners don't mind paying. Somehow I think most of them could live with new Toyota parts on their 308, but secondhand would be too much of an insult

BTW the Freedom ECU site lists their conversion kit at 830,000yen (about $11,500) without the T/Bs, I reckon I could do it cheaper and use a Motec.

Kit contents are;


They also do a horrible intake, but that's too much rice for my taste.

[RedMist]

I'll keep looking, as I probably want blacktop ones. Anyway if I can't get some secondhand it's good to know they are available as a seperate item, though somewhat pricey I'd imagine.

You do know that the Blacktop TB's have a taper to the floor of the TB? They are quite out of round by the face. I'll have to take my set of the manifold and see if there is enough meat there to grind them back into round. (unless you have a D shaped inlet port?)

[Mr Revhead]

oh yes thats ugly

freedom... dont they have a self learning ecu?
back in the day when i had an ae86 i used to frequent club4ag and the owner of that site had one, that self tuned.....

[fivebob]

yeah ive herd something on the axels
the inboards cv's look very substantial but the drive cv's look spindly in coparason

herd of any inprovements ??

Talk about a thread hijack, and multiple tangents

Yes there are upgrades to the stock CV's, ATSRacing do a kit, and there are a few specialist axle manufacturers in the US that do complete replacements, but I hear that they may be a bit on the brittle side.

[fivebob]

You do know that the Blacktop TB's have a taper to the floor of the TB? They are quite out of round by the face. I'll have to take my set of the manifold and see if there is enough meat there to grind them back into round. (unless you have a D shaped inlet port?)

Doesn't matter as I have to get some adapter plates CNC machined anyway, so I can fit the injectors to replace the old CIS fuel distributor setup.

[fivebob]

freedom... dont they have a self learning ecu?
back in the day when i had an ae86 i used to frequent club4ag and the owner of that site had one, that self tuned.....

Yes I believe that is one of the quoted benefits, but like most AutoTune systems they have their limits, and you're better off doing the job yourself, especially on a forced induction engine.

[Mr Revhead]

another tangent....

talked before about the size, any estimates as to the hp these t/bs can support
i know theres some serious (500hp+) engines out there running them

[fivebob]

another tangent....

talked before about the size, any estimates as to the hp these t/bs can support
i know theres some serious (500hp+) engines out there running them

Bit hard to say, but they have the equivalent area of a single T/B twice the diameter, less a bit for the throttle plate.

My guess is that they would probably be enough for 800hp, maybe more, on a four cylinder forced induction engine. More than any sane person could want

[anthonym]

Talk about a thread hijack, and multiple tangents

Indeed, take thy westie car from out my thread .

Interestingly the stock Altezza intake is slightly smaller than 45mm at the narrowest point, but the actual ports are substantially larger than this (oval 53 x 43mm) and are not drastically tapered as they run down to the valves. Dosen't really make much sense to me.

Makes sense if you consider that the venturi is there to keep the air at maximum velocity around the throttle plates,

But not when you consider the stock intake does not use individual throttle bodies.

the throat ahead of the valve does a similar job, so the air is sped up, slowed down, and sped up again. Not sure if that the most efficient way of doing things,

Indeed, so the flow (in stock form) is through the single throttle body (70mm IIRC), through the plenum, down the runners to an insulation plate which tapers in, then into a stub manifold bolted to the head which tapers back out, then into the head. Could it have something to do with the position of the injectors?

but then you really need a Gen II head to get max flow, now don't you

Oops sorry wrong board, please ignore my last remark as I was overcome with idol worship for the Gods of the MR2OC board

Yes it's a good job that Air NZ is broken at present or perhaps that one-eyed Americans are also fat and lazy, or you'd have had a good ol ass whooping by now boy .

And to get back on topic, I wonder what MR2OC's personal Jesus would make of an Altezza head? I suspect it would also be judged inferior because Toyota did not see fit to sell it in the US of A.

[anthonym]

Another related question,

Does anybody know what throttle bodies Bill Sherwood used on his Fraser?
There is a pic in the bottom RH corner of this page.

[Mr Revhead]

they look home made, or at least aftermarket.....
havnt seen them before. flick him a message, hes usually pretty keen to share

[Adamal]

Looks to me as if he has some kind of adaptor plate between the throttle body and the manifold

[anthonym]

Looks to me as if he has some kind of adaptor plate between the throttle body and the manifold

That's a different engine. Those are "injection" throttlebodies usually intended to replace carbs; too fat for what I want .

[RedMist]

Arent they Weber injection throttle bodies?

The gentleman I'm working for has a set of custom made individual 65mm throttle bodies on his pseudo Lexus V8. I say pseudo as I think the block is a custom casting from TRD. Its a Rod Millen engine producing 600bhp NA in desert trim (detuned). I wouldnt like to be the passenger though, your arse sits just above the right bank. In addition I wouldnt want to be the owner, the maintenance cost of the thing is horrific!

Those of you in CHCH come and see it (and the Bunderson) race on the 6th and 7th in the NZ National finals. See www.oranz.co.nz for more details.

[fivebob]

Indeed, take thy westie car from out my thread .

Poor unloved thing, even the westies don't like it, they'd prefer my CrummyDoor

Indeed, so the flow (in stock form) is through the single throttle body (70mm IIRC), through the plenum, down the runners to an insulation plate which tapers in, then into a stub manifold bolted to the head which tapers back out, then into the head. Could it have something to do with the position of the injectors?

Possible, or it could have something to do with "flow qaulity", but hey without a flow bench and some good ole' boy to operate it, I'm too ignorant to know fur shur

Yes it's a good job that Air NZ is broken at present or perhaps that one-eyed Americans are also fat and lazy, or you'd have had a good ol ass whooping by now boy .

Indeed, but they're only broken across the ditch, so i can't make my escape till next week and I was shaking in my boots at the thought of digging another hole down the back to bury the body

And to get back on topic, I wonder what MR2OC's personal Jesus would make of an Altezza head? I suspect it would also be judged inferior because Toyota did not see fit to sell it in the US of A.

On topic, hmmm just what is the (current) topic of this thread any way

I suspect you're right, but as he couldn't even answer my simple question, despite being asked three times, I think it would probably confuse the poor old deity Of course he would "proof" you wrong though, and his minions would declare Jihad on you for daring to ask such an impertinent question.

Ooops seems I've taken another tangent May as well add another. Have you by chance got a Gen III head lurking around that I could measure up, of course it needs to be turbo coz everyone knows the NA heads are different