NA builds. How far to go?

[jondee86]

This is the torque curve from the engine I mentioned above...



As you can see the ITB's did not kill the bottom end, but this
is a smallport engine which is more "torquey" than a bigport in
stock form. On the road it would lug down to 2000rpm without
protest, so no problem driving in traffic.

Torque peaked at just under 6000rpm and power at 7200rpm.
Stock untouched bottom end and stock head. TRD valve springs,
lightened flywheel, second hand cams, custom DIY intake manifold
and velocity stacks, self tuned ... a budget build But it does
show the potential of the AE92 smallport engine. Mine had around
85,000km on it when I bought it from a wrecking yard.

If you are determined to use the bigport engine, then you need
to track down an experienced engine builder who knows the 4AGE
engine and what it takes to make it fast. If in doubt, ask around
the rally community as they have built and broken more 4AGE's
than anyone

Cheers... jondee86