Twincharged AW11

**nick.parker** · 27-11-2006, 10:12 PM

I've been doing a bit of reading on this subject and have decided that I would rather spend the money on making the supercharger go like hell through turbocharging than feel
dissatisfied with the reults of a wrung out SC12 build.

How much HP do you want? With a terrible tune my SC14 AW11 setup did 150rwhp Now its running more boost, more cam duration, more exhaust it will be a few more hp, but you should be able to squeeze 200rwhp from an SC14 setup, especially on a high comp GZE...low end torque will be exemplary of course...

**feral4mr2** · 27-11-2006, 10:50 PM

i will be putting the feral's turbo gear on the s/c auto after i am back home. simple set-up twincharge (well to me it is). i'll post pics etc once i do it.

**Jorrs** · 27-11-2006, 11:06 PM

http://en.wikipedia.org/wiki/March_Superturbo

^ i like the Nissan Super Turbos system of twin charging, which employs the SC and Turbo through the same TB but on different piping and switches between the two at a certain point, it being about 3500k RPM or so, it has a butterfly flap which changes which induction is being used and switches it over, which is very clever and the plumbing didnt seem to complicated.
This would be the avenue i would go down if i ever attempted something along these lines.

**feral4mr2** · 28-11-2006, 02:03 AM

Originally Posted by oldcorollas

if you are chasing big power, wouldn't the standard ZE inlet be one of the first things to go?

some aw11 twincharge projects have made 300hp + useing the factory gze inlet manifold.

**jfallen** · 28-11-2006, 11:18 AM

You can also pull 20psi out of a Dihatsu mini van turbo, still doens't mean it's a good idea. I had a good look at Starfire's inlet when I was helping him fit his remote oil filter, and needless to say it's of poor design.

**boxh34d** · 28-11-2006, 07:54 PM

Just one point to consider.
Detroit Diesel (GM) ran turbos blowing through a PD blower on the 92, and X.71 T series diesels years ago.
I know that its obviously a very different issue being as they are not only diesel, but a 2 stroke diesel at that, but the fact remains that it created no detrement to the engines nor the blowers or turbo's themselves.

I'll leave the setup options with things like BOV's, Wastegates, Throttle bodies etc to the experts, as I have no idea ( trucks use non of these )

**feral4mr2** · 30-11-2006, 03:13 AM

Originally Posted by jfallen

You can also pull 20psi out of a Dihatsu mini van turbo, still doens't mean it's a good idea. I had a good look at Starfire's inlet when I was helping him fit his remote oil filter, and needless to say it's of poor design.

true the cylinder 1 dogleg bit does look at a little wierd, but i'm sure with the years of experience in research and design that toyota has they would of thought about the design of the 4agze inlet manifold just a little....
doesnt matter, i'll be useing it.

boxhead, my parents denning motorhome has one of them engines, but only the supercharger. dad and i want to put a turbo set-up on it too.

**boxh34d** · 30-11-2006, 10:01 AM

Being a denning I imagine its just a straight 6.71??

**jfallen** · 30-11-2006, 04:52 PM

A little off topic, though it's worth mentioning. 2-Stroke diesels need a super charger to run. So a Supercharged 2stroke diesel isn't really all that special, (except they tend to catch on fire, especially the suck-through carbie ones of yesteryear.)

Cheers
Jordan

**boxh34d** · 30-11-2006, 05:16 PM

Originally Posted by jfallen

A little off topic, though it's worth mentioning. 2-Stroke diesels need a super charger to run. So a Supercharged 2stroke diesel isn't really all that special, (except they tend to catch on fire, especially the suck-through carbie ones of yesteryear.)

Cheers
Jordan

Its not the fact that they need a blower to run, its more of a case of they need the blower to start.
But, my post was talking about the fact that some GM's run a turbo through the blower to no detriment to the blower nor engine.
Therefore I think it is a valid point that a.) the idea of running a turbo through a blower has been done before and quite reliably (in a different setup and situation yes)
And, b.) it has achieved the said task of producing a good increase in power.

I am by no means saying that because it has worked for GM's, its going to work in this situation, merely that it has worked before. So have a look in that direction for info and inspiration, and see what mods have to be done to get the thing to work effectively.