6.0 Chev + auto

[Baz]

Originally Posted by Jethrow

Hi all.

As part of my cobra research, I am wondering if anyone has build a cobra with the 6.0L LS2 with the 6 speed semi-auto gearbox as found in a typical VE SS.

Would like thoughts or experiences on using the semi-auto. The auto side has some appeal for easy cruising and extra pedal room!, but the manualised sequential shift would appear to give best of both worlds?

Comments?

Hi Jethrow,

That's exactly what I have installed - See my 'Gallery'. I have a new crate 307 kw LS2 coupled to a six speed 6L80E tiptronic automatic transmission. The car is still waiting on RTA rego so I only have done about 800 k's on Permits.

So far, so good. My principal reason for this choice was to provide more foot room around the pedals and it's certainly achieved that. I couldn't find anyone who had attempted this setup previously.

There were a few big headaches with getting the gearbox computer talking to the engine ECU. Jimmy and Justin from Sideshow Performance Tuning eventually sorted this out by installing a miriad of micro switches etc., etc around the selector and inserting a Corvette tune. Now it's working fine.

If I ever have a major explosion in the box, I think I would change the ratios in 1st and 2nd as they seem too low, but it certainly launches off the line in its present configuratiion.

Hope this helps.


Baz