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Discussion Starter #1
What are the real benefits of fitting a Ferrari 360 throttle body to my GTA?
I'd need the throttle which I have found a source for from a specialist breaker at £150 each.
Then an adaptor to convert the bolt pattern, or ideally a custom plenum.

What are the pros and cons?
 

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more power sharper throttle response although TBH I'd be looking at 330's first :p
 
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Discussion Starter #3
If I could find a set for a reasonable price I'd have them!
 

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What else do we need to convert the throttle body? Other than the throttle body itself, what else do we need?
 

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All it will do is let more air into the engine, thus making the car run a little less rich.... Maybe combined with a remap you can make use of it.... but you are still ultimately restricted by the plenum size...
 
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I asked as the thread on the ACT carbon plenums along with a 360 throttle could make a nice modification. Would like to see the actual before and afters for a guinea pig car first though. £220 for a carbon plenum, plus £150 for a 360 tb + £? For a decent remap. Still not bad as I have been pondering a remap of late anyway!
 

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Definitely makes the throttle response sharper and a bit more 'raw', not sure it's done a great deal for performance, but it fits in nicely with other mods and pretty easy. Just had to move the holes and widen the plenum neck to match the new TB and make the most of it. Just had a generic angel remap, so prob not really helped at all, but it was dirt cheap.. maybe a custom map would improve it further. Noticably rawer acceleration anyway as the main change..not in power, but the way it does it.. (my opinion; although I've put in 'a number of hours' on the dualcarriageway 'testing it out')
 

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Yea, and it keeps pulling like a train to the red line. It's hard to explain, but easy to feel.. just makes the whole acceleration process a bit more.. angry?
 

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There should only be one rule to tuning. Handling and braking first followed by power ;)
 

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Damn straight.

Brakes

Suspension

Power!
The insurance man prefers it this way round too. My wagon is now cheaper even though its quicker :lol:
 

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So here's my experience with fitting a 360 throttle body this week (cross-posted from AusAlfa).

I picked up the car from the mechanics this afternoon with the new (used) 360 throttle body fitted, and thought I'd let everyone know the effect of the modification.

First, a bit of context. The car is a 2002 156 GTA with no engine mods at all - OEM standard induction and exhaust, although the usual brakes/suspension/Q2 work has been done. It's well maintained and has about 75,000 km on the clock, and in effect is a controlled experiment to find out what happens when you change the throttle body but nothing else.

The answer is that it definitely makes a difference and I'd recommend it as a simple and straightforward modification. Throttle response is significantly improved, there is much more eagerness in the pickup at the lower end of the rev range, and it definitely goes harder at the top end. It's an evolutionary change rather than a revolutionary one, but it has the same effect as suddenly removing 100 kgs of weight - it's much more responsive throughout the rev range, and the car feels hilariously up for a good thrashing.

As I don't have access to a rolling road or any other useful gear, this is a purely subjective assessment. I can't really tell if the changes are due to increased torque (some people have talked about +22Nm) or whether it's simply better throttle response, but I think the torque must have improved as the car will now happily amble up hills in a higher gear than previously. And overall it just feels more nimble and responsive.

I need to stress that this isn't a massive difference, although in my view it's definitely worth the price of entry. The throttle body came from a dismantler in the US via eBay, so cost me about NZ$550, to which customs added about NZ$120 in GST and fees. My local specialist mechanics removed the plenum and milled it out by about 2mm to match the diameter of the throttle body, made the bolt adjustments necessary to line everything up, then reassembled everything and tested. The work cost me about NZ$700 including the engineer milling the plenum, and I conducted the Italian tune-up at the end. :lol:

So very happy overall, and a recommended mod.
 

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Are there alternatives to using a 360 throttle body? I've noticed that Audi V8 and Aston V8 use Bosch throttle bodies that look exactly the same as the GTA throttle body but with what looks like larger ID.

The Ferrari 360 throttle bodies must be hard to get hold of and just wondered if there was an alternative option?
 

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Are there alternatives to using a 360 throttle body? I've noticed that Audi V8 and Aston V8 use Bosch throttle bodies that look exactly the same as the GTA throttle body but with what looks like larger ID.
Check the pins on the plugs, they need to be in the same arrangement.
 

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Are there alternatives to using a 360 throttle body? I've noticed that Audi V8 and Aston V8 use Bosch throttle bodies that look exactly the same as the GTA throttle body but with what looks like larger ID.

The Ferrari 360 throttle bodies must be hard to get hold of and just wondered if there was an alternative option?
One German company was offering on the website TB upgrade using F360 or Porsche 911 GT3 as the next step. But I dont remember what 911 generation and what was the diameter.... but I guess the other 911 will at least have the same plug.
 
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