STI450

Any tips/tricks to getting smoother shifts on a 6 speed '08 STI hatch gearbox?

I've noticed that 2nd to 3rd under full acceleration in 3rd isn't the smoothest and you have to shove it which quite a decisive action! I'm still getting used to the car having only just bought it and notice I sometimes miss third as I move across the gate too far!

Car is running 450bhp/450TQ so am just wondering if perhaps I need to look at some gearbox upgrades/supports. eg. STI Group N 6spd Gearbox Mount etc

stealthbomber

iTrader: (3)

You could try a nylon gear linkage bush kit from as performance
, a different gear **** might help, I've got a rallytec one on mine which is longer and heavier and shifting is really nice now. Don't take it the wrong way, but also think about your gear changes, try and smooth it out.

STI450

Thanks, will keep in mind to be smoother with the changes and will have a look at AS Performance.

stealthbomber

iTrader: (3)

The bush kit has been one of the best mods on my car, and it's cheap. Makes for a very snicky (made up word I know) gear change.

edsel

iTrader: (2)

I'm suffering the same issues on a recently rebuilt WR1 box fitted to a classic. At a recent RWYB meet I kept hitting fifth instead of third. I have the AS bush kit fitted, sure its improved the feel but not solved the third gear issue when changing under load or in race conditions.
Next on my list is a short shift kit but I'm undecided what one to use.

The Pink Ninja

iTrader: (23)

2nd to 3rd and 4th to 5th have always been the same on all the 6 speeds, the synchros dont like to be rushed

bustaMOVEs

iTrader: (31)

Think that's more of your technique tbh, and IMO 6 speeds don't need a short shift kit, they are short enough as is and will potentially give you more gear changing issues like popping out of gear etc, the 5 speeds benifit short shift better as they are a longer throw.
4th-5th is common for crunch issues when in race mode, I've combatted a gear change that solves it
All my other gears are fine btw.

ZANY

Replacing the rear diff cradle bushes makes a lot of difference to the gear change feel much more solid

edsel

iTrader: (2)

I've been telling myself its my technique for months, never had issues with any other gearbox.
I'm still using the five speed clutch and fly, would that have any bearing on the poor changes? Heavy duty mounts have just been purchased and a six speed clutch is imminent, we'll see if that improves my technique No crunches in the recently rebuilt box.

bustaMOVEs

iTrader: (31)

Brace everything up, drivetrain wise, will keep the box less leany when on full power etc, box might be tilting too much because of soft bushes.
Diff brace, box mount, cradle mounts, dog bone etc will keep box stable and aid in easier changes and less rock type motion

Gambit

iTrader: (6)

I also struggle with the 2nd -> 3rd technique and been reliably informed that instead of trying to push it up & across into 3rd just go straight up with no force across and itll go straight into 3rd. Still trying to master it but still find myself going up & across

JGlanzaV

iTrader: (3)

The gearbox naturally returns to centre so you shouldn't need to move the stick across at all. You need literally no pressure on the stick to shift 2-3 it will find its own way home....

scotty boy 80

iTrader: (5)

3rd to 4th I some times get problems when booting it

edsel

iTrader: (2)

After investigating further I've found a split engine mount, purchased uprated engine and gearbox mounts. I'll report back when fitted.

The Pink Ninja

iTrader: (23)

2 fingers on the rear of the gearknob and just push it forward works for me, gentley does it but quickly

bustaMOVEs

iTrader: (31)

I can't believe we're actually discussing how to change gear Loool.

Gambit

iTrader: (6)

aye i know, but what i was getting at is that when rattling up through the gears asap i have a tendency to try and ram it into 3rd by going up and across, same way in going from 4th to 5th you'll go up & across for it - its just a bad habit

JDM_Stig

iTrader: (3)

Also what RPM are you shifting ?

RE Short shifts on a 6 speed, no idea why it wouldnt make life easier, I love the GGR one on mine, just less effort required when changing gear, it did come with both bushes so that will help with precision changes, if it is loose and worn it will make the changes harder.