LS TB on L67/ecotec

For non EFI mechanical discussion
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: LS TB on L67/ecotec

Post by vp304 »

Was getting 2 eager hoping to turn key and fire up in excitement. Kinda like when you fit a new exhaust and wanna hear it lol.
But yeah i should connect tp and see whats going on when time comes
Thanks vlad
immortality
Posts: 3416
Joined: Thu Apr 09, 2009 12:31 pm
cars: VH, VN, VS, VX

Re: LS TB on L67/ecotec

Post by immortality »

I'll ask my mate and see if we made any changes to his tune when fitting the LS TB.

I've had a look through the tunes and although Holden did change the pintle size and passage diameters on the TB from early to late ecotec the tune parameters didn't really seem to change when comparing VS to VX.
Last edited by immortality on Tue Feb 14, 2023 1:00 pm, edited 1 time in total.
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: LS TB on L67/ecotec

Post by vp304 »

Thanks heaps immortality.
I looked at ls1 tb blade has a small hole in it.
L67 tb dosnt hopefully can get idle low enough also
Dylan
Posts: 3355
Joined: Mon Aug 02, 2010 6:35 pm
cars: VR Commodore V8

Re: LS TB on L67/ecotec

Post by Dylan »

I heard a rumour once that the LS1 IAC is wired reverse to our old ones and also that the end of the solenoid is a more aggressive angle and air flow comes on quicker.

Be good to hear how you finish up with this one.
immortality
Posts: 3416
Joined: Thu Apr 09, 2009 12:31 pm
cars: VH, VN, VS, VX

Re: LS TB on L67/ecotec

Post by immortality »

Mate answered, he doesn't think we made any more changes to the tune other than what we did for the 69mm TB.

I do seem to remember he struggled a bit to get the idle speed right along with TPS and IAC steps but then I don't think he had TP connected to check IAC steps and TPS voltage.
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: LS TB on L67/ecotec

Post by vp304 »

I should have it all done in a week or so will let yous know how i go.
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: LS TB on L67/ecotec

Post by vp304 »

So follow up this weekend done some street tuning.
Did not change anything wiring wise pluged all straight in to my vr factory loom.

All i had to do was plug the hole in the ls1 Tb and ajust idle screw to get iac steps were they should be.
Post Reply