The Unicorn: Round Duex

[joelster]

Have you seen the "sloppy trans brake" mod? Sounds hideous but basically tells the shift solenoids to be in 3rd gear so you can build boost on the footbrake, then when you release the button it releases the 3rd gear command and off you go. I'm going to give it a shot on my junkyard 80

My friend had that mod in his 4L80. We raced the True Street event at Norwalk last year. He made it one run and the brand new tranny let go. Not saying it was the culprit, but the tranny shop builds a lot of solid stuff.

[firebird_1995]

My friend had that mod in his 4L80. We raced the True Street event at Norwalk last year. He made it one run and the brand new tranny let go. Not saying it was the culprit, but the tranny shop builds a lot of solid stuff.

I've heard it both ways. There's a thread on ls1tech of a guy that made numerous passes on the mod, and I've read others like your experience where it's roasted the trans. I'm sure there are many variables, converter, trans temp, how high you're building and how long. My trans doesn't owe me anything so I'd figured I'd let her eat, or roast.

[RealQuick]

Congrats Matt!

[harner]

I love that this setup doesn't rev high but still makes great power. Well done and nice combo! A true street setup for sure.

[shownomercy]

Congrats Matt!

Thanks Jon, gotta update your site

I love that this setup doesn't rev high but still makes great power. Well done and nice combo! A true street setup for sure.

Thanks! The small turbo and small cam do limit me from playing the HP battles of larger stuff but, its a blast to drive round the street.

[RealQuick]

Matt, you gonna throw meth on this year? Should add quite a bit of power after a retune.

[shownomercy]

Negative, really not needed when your AFR is pig rich at WOT.

We left it so rich to protect the trans