Well one thing I have noticed about the T that is real unsettling is that well I have more power at say 4000-4500 rpm than the engine makes at 5000-6000rpm. Like do a hard change at the lower end of the rev scale and the wheels will spin, do it at the higher end and yeh be lucky to make it chirp.

First thing that comes to mind, valve springs, well I got a BF, not sayin the car doesnt pull but its breathless up top compared to the rest of the rev range. Ive looked at other dyno graphs of BFs and they all look to fall over in that part of the rev range.

Any hints and ideas on why the hell ford made the cars like this, and wat can I do to fix this problem as its really giving me the

Cheers Adam

EDIT

lol yes an edit is on the cards but is that wat the issue is?

It might have something to do with the difference in torque outputs at those different rpm levels.

Every engine has a rev range where it works best. I doubt it's a problem with your car.

All stock Ts are like that. Its just Fords way of protecting the engine from going pop at high RPM. As said before, get a tuned edit and your car will pull all the way to the limiter.

ok that sounds like an easy fix

Cams.

Dingah

They will never be high rev screamers but yes the factory tune acconts for a lot of the drop off in the higher rpm range mate and the edit cures most of it.

Do you notice it breaking down at all or just a drop in the shove of the back from the bumometer?

well to coin yoru words dean a drop in the back from the bumometer

I checked my original dyno graph. A standard Ford T manual has peak torque at around 3300rpm, drops a bit but is relatively flat to around 5000 rpm, then fall away.

Peak power is at around 5200 rpm.

Even go to your usual stage 2 & 3 upgrades and you'll keep those rpm characteristics, but with much higher power and torque.

To change these rpm characteristics you need to change either cams & or turbo.

From the graphs I've seen the rpm of peak torque remains about the same with Edit, perhaps bringing it on a bit earlier, and you may shift rpm of peak power up a bit, but not by much.

These engines, being undersquare, are not designed rev high, as it puts a lot more stress on the rods, which is why they have a stock 5800 rev limit. Rather, the engines are set up as low boost, to reduce component stresses, but maintain good flat torque curve for easy driving.

Brian