What’s the best sized stall for my cam?

[RevNev]

I'm happy and that's all that matters.

Great that you're happy but avoiding the cost of a converter to band-aid a crap tune probably matters a bit more to most.

 

[Phillbo]

A crap tune?? All done by JP Garage here in Brendale...would not call it a crap tune at all. Anyway I'm done!

 

[PeteSS]

Better at what than stock? I agree that a high stall is better at mimicking a manual with a slipping clutch, but I don't see much point in that for a general road car. A lot the stall thing is from the carby days where a big cammed engine idled at 1500rpm almost on the stall speed of a stock converter. With EFI technology and good ignition systems today, big cammed engines can idle at much lower RPM. V8 Supercar engines for example with camshafts around 270 @ 0.050", 0.730" lift on a 102 lobe centres idle around 900rpm!

Agree. Mine is running a VCM5sc which VCM recommends having a 2500rrpm stall. Mine has standard stall converter
was originally a bit of a dog, but after having the tune tweaked it's now fine. Idles around 700 and doesn't feel like it's pushing.

 

[The91kwbeast]

It's worrying in 2023 that some tuners still seem to struggle with the VE/VF Commodore, for anything more complex than bolt on parts.

Blows my mind that more customised gearbox and engine tuning for cams, stalls etc is this hard.

 

[07GTS]

It's worrying in 2023 that some tuners still seem to struggle with the VE/VF Commodore, for anything more complex than bolt on parts.

Blows my mind that more customised gearbox and engine tuning for cams, stalls etc is this hard.

lucky we didnt get the gen5 engines, but it would weed out all the duds

 

[RevNev]

It's worrying in 2023 that some tuners still seem to struggle with the VE/VF Commodore, for anything more complex than bolt on parts.

Blows my mind that more customised gearbox and engine tuning for cams, stalls etc is this hard.

There's a bloke in SA who's seriously bad at low speed drivability with camshafts in auto's, has been tuning LS engines since 2006 and he's still no good at it!

 

[Immortality]

From the threads on this forum there seem to be quite a few who only seem to care about the dyno sheet and overlook the everyday drive ability part of the tune.

 

[07GTS]

There's a bloke in SA who's seriously bad at low speed drivability with camshafts in auto's, has been tuning LS engines since 2006 and he's still no good at it!

and autos are the easy ones, wonder what he is like with an angry camshaft with a manual and super light clutch/flywheel

 

[vr304]

and autos are the easy ones, wonder what he is like with an angry camshaft with a manual and super light clutch/flywheel

Probably band aid it with diff gears

 

[RevNev]

and autos are the easy ones, wonder what he is like with an angry camshaft with a manual and super light clutch/flywheel

His manual camshaft tunes aren't great down low but a little better than auto's. Stalling in gear and backfiring through the intake accelerating from low RPM and surging at light throttle and of course pushing on the brakes with high idle speeds are the general issues. Typically tells the customer they've fitted the wrong camshaft as the excuse for tuning deficiency.