Hi Everyone,

I'm a proud RX-7 owner for the second time!

It's great to be back.

My first was a 1990 GX with an 8000 RPM redline which I loved! I would touch 115 km/h in second gear!

I now have an '88 turbo with a 7000 RPM redline - all factory original.
It feels faster, but I do miss that extra grand on teh tach.

The Turbo's got great power, but how's the durability vs a normally aspirated 1990 GX?

Need your experience ...

Rrrrudy

 

NA engines still have power at 8k, usually your boost drops off at 7k or before. you can still go to 8k on the turbo models but its pointless unless you still got power that high

 

Even on the S5 NA you feel a definite drop off in acceleration after 7K.

 

On a stock engine, the power will start dropping off before the redline, regardless of what the redline is. The 8k redline is only on s5 manual NA cars, also, so I guess it wont really drop off on an s5 automatic, but thats a special circumstance.

 

I'm not a T-II expert. With that said--doesn't the T-II ECU have a built-in fuel cut at 7500 rpm? It seems, in my admittedly fuzzy memory, that I have read that somewhere.

 

I thought the cut off was only if it was over boosting?

 

It does have a fuel cut but that only kicks in if you end up at higher than stock boost. So i guess if your running a straight or something w/o a FCD then you could hit fuel cut before redline.

 

TII redlines at 7 stops at 8. cuts fuel when u overboost

 

i love my TII...

 

Well, since no one has mentioned it, the reason the redline is 7k VS 8k on the automatic S5 vs the 5-speed S5 is the transmission components. More specifically the torque converter. The transmission simply cant handle the higher rpms compared to the 5 speed.