AFI 24v VR6 Intake Manifold

[Dyldo]

Can I take a guess that finding an R32 head would be very difficult?

[JVLR32]

YES Dyldo it would.....States is the way togo

[Lonewolf1983]

better off buying the whole motor

[Dyldo]

i'm just talking here, but if we asume that FI increases the engine output at a certain % over its starting point its logical to assume a turbo'd R32 engine would be quicker than a turbo'd VR6 24V engine (holding aside the obvious displacement issue).

If the R32 head really is so much better though, is there a logical answer as to why a fabrication company hasn't made one for consumption?

[Lonewolf1983]

of course a turbo r32 will make more power than a turbo 2.8, theres no replacement for displacement.

No-one is going to tool up a factory to make aftermarket heads for any car, let alone as small a niche market as the R32.

[Dyldo]

sorry, should have been more specific. i meant that if displacement were the same, then we assume that the big difference in the engine will be the head design correct? thats what i was trying to determine. my apologies.

With some hard work over the next 12 mths I genuinely believe i will come into some money, and one of the outcomes is to throw around $20K at my Bora and the lion's sare of that would be FI - most likely a Kinetic Motorsports turbo. Hence I am trying to be very clear on my build list and then find a guy to put it all together for me. At this stage I am considering City Performance in Artarmon.

But back to my OP, and can we agree now that as fine as this intake looks, the R32 head would be a better alternative?

If thats the case, then it *may* make the most sense to install a R32 engine in the Bora.

[Lonewolf1983]

sorry if I misinterpreted what you said
yeah, even taking into account the displacement difference, the r32 makes more power per liter
3.2L 177kw = 55kw/L
2.8L 150kw = 53kw/L

If you have the cash i'd do the 3.2L swap, there is more support for the motor parts wise too, so you can build the motor etc.
But if on a budget a F/I 2.8L > n/a 3.2L

I'd love to do the 3.2L (or even better a 3.6L!), but pretty sure finding a suitable motor would be a long and expensive exercise

[schoona]

Stom Developments in the UK have crate motors, but I shudder to think how much they are asking...

[JVLR32]

stick to ur 2.8.....
034motorsport in the states developed a 2.8 24v with a R32 head with turbo with a tunes for circuit and drag of 600 to 800hps+
This motor is now forsale......
Buyin a R32 motor will cost ur arm and leg..
R32 head is the way togo....like i said earlier,to develop the 2.8 head to get gains even bigger than the R head will cost a **** load..
This is not sayin the 2.8 head is **** but cheaper is R32 head

[Dyldo]

i don't want to hijack my own thread and turn this into a drooling mess of "my dream build" thread, but i feel i have a pretty good reason for my thinking so far for the 2.8L turbo idea. See, i got my Bora for $12K (yes, i know its a bargain for a 4Mo) but the paint is terrible, and she was a bit tired. Thankfully, the engine and drivetrain were good but the suspension is shot.

Anyway, seeing as how I got it for 12K my thinking was that i could drop a few grand on detailing and paint resto and leather resto, a few more grand on rims, rubber, suspension and shocks (call it $6K now) and then around $15K on a turbo kit brings the Bora to a total spend of $35K approx give or take the odd exense here and there.

If a mint R32 is $35K then tbh i want my customised Bora.

I could go extra mental and do forged internals and balanced crank and oversized valves and basic headwork for a few more grand.

And of course the biggest (and best hp) expense would be an R32 engine ($5K USD) and do all the forged goodies and off she goes. But that $5K engine would have to cost $10K AUD landed, yes? However, that does make it a Bora R32 turbo with all new goodies for the additional cost of a R32. Plus there are more goodies and parts for a R32 as mentioned, as well as more tuners and ECU maps.

very inteersting. the thinking continues......