ras62

[QUOTE=robt964
Personally, for a road car, non plenum based ITBs such as these would not really be on my list due to low end behavior.

Agree with this 100%. Even using a ITB setup on standard gearing seems pointless as the power is rarely available, certainly in road driving, perhaps less so on a track. I've just rebuilt my engine and torque across the whole range is up several notches on a standard engine. It simply drives away from a standard car on any given stretch of road.

HDA

That would be me
Still waiting...

HDA

It's safe to assume from the badges that the previous owner is Italian?

And probably a huge national team fan as he even painted the car in "azzurri blue". Assuming that is not the original color. Also - from the looks, he may be from south of Italy

BenClifton

Hey Guys,

I work for AT Power and have been involved with the development of these kits, sorry i haven't gotten on here, i've just found this thread (please bear with me getting back to you as i don't often check on here)

To give you a bit of the story, we had a customer who wanted to use our ITBs on a road car (We've typically been involved mostly with the race scene) and wanted to look at putting together an ECU for it also, so we thought while we're at it, we should put it together as a plug and play kit, with a complete ECU and fuel system.

So, we got the car delivered to us, then took it to our friends at Specialist Components (who manufacture the ECU) to look at the electronics side of things. During this development we did a lot of playing around with inlet length tuning and getting the throttle response correct for a road driven car, so developed a cam based linkage in the centre of the engine bay.

The car we did the development on was a completely standard 1993 3.6L Carerra 2, which we base line dyno'ed before doing any of the work, then fitted up the kit, played around to get inlet lengths right and make sure it would package in the engine bay, below the electronic spoiler which ended up being quite the task to get the length we wanted to achieve, which led us to the curved runners.

We then went back to the same dyno once the kit was installed and re-ran the car, which resulted in a peak of 289.3 Fly HP.

We also replaced the fuel system from the standard filter feed in the car to the feed back to the tank, using the OEM Connections.

The goal with this project has always been to make it easy to install, give good power and make sure we didn't have to cut the car to bits to make it work.

Admittedly, with a set of cams this probably would have gotten more power, but then you're getting into a bit more involved engine work which we wanted to stay away from as we wanted this 'bolt-on'.

We drove the car after all of the testing, and we were really impressed firstly with the noise, but also the power and torque gain and engine pull through the gears.

I will do my best to keep an eye on here but i may be slow so please bear with!

Thanks,

Ben

cobalt

Just curious do you sell the ITB's alone? I am building a turbo 993 engine and am playing with ideas.

jeff33702

BenClifton

We do indeed sell the throttles on their own

We can also provide them with inlet stub tubes to mount a GT3 intake plenum to if needed, we've done this for a few customers.

To seal for turbo is slightly more expensive, unless you do something like the GT3 plenum, as we would need to make custom tubes to hold o-rings to seal the inlets, but certainly doable.

We have a huge variety of options we can do to the throttles as far as inlet lengths and styles.

If you need any information or pictures about this feel free to email me directly (ben@atpowerthrottles.com)

Thanks,

Ben