Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Lesopc on 25 March 2011, 13:17:12

Title: Dash display for a V8 conversion
Post by: Lesopc on 25 March 2011, 13:17:12

Hi guy's, as i have mentioned before, i am thinking of replacing my 2.0 4 cylinder ecotec lump for a GM LS series V8. I can see straight away that my current dash (speedo/rev count) display will probably NOT be suited to a V8 lump and was wondering, would a V6 display be ok for purpose or would i need something else?
If something else is required then does anyone have any ideas?
I also guess that the wiring looms on a LS series V8 will not plug straight into the current dash systems or would they?
Hope this one has some answers as i am at a loss. Thanks.

Title: Re: Dash display for a V8 conversion
Post by: feeutfo on 25 March 2011, 18:47:45

Why is a gls dash not suitable, out of interest?
There was a v8 mv6 with ls1 on piston heads not so long ago, looked entirely stock apart from the gear stick. Clocks and all.... ?

Title: Re: Dash display for a V8 conversion
Post by: Lesopc on 25 March 2011, 19:21:35

I was under the impression that maybe the rev counter would need to have different markings as mine is around 7000 at red line pluse the speedo tops out for 140mph???
I would have thought slightly higher markings would be needed for both dials?

Title: Re: Dash display for a V8 conversion
Post by: aaronjb on 25 March 2011, 19:35:48

The LS series engines, if I recall, red-line at about 6000rpm unless it's a very special build - generally speaking the more cylinders you have, the lower it revs (excluding exotica).

As for the speedo.. how fast are you planning on going?

Title: Re: Dash display for a V8 conversion
Post by: Lesopc on 25 March 2011, 23:38:08

Never planning on going faster than 80-90mph (mostly 70 though) but want to be sure it will be calibrated correctly?

Title: Re: Dash display for a V8 conversion
Post by: feeutfo on 26 March 2011, 03:43:08

Speed signal is taken from the abs sensors on the rear drive shafts, as I understand it. So any gear box or dif changes will have affected the gearing prior to the abs pick up. So it'll be fine mate.  :y

Title: Re: Dash display for a V8 conversion
Post by: cem_devecioglu on 26 March 2011, 10:23:01

here is some info about speedo calibration ;)

http://www.pirate4x4.com/tech/billavista/LSPrimer/Refs/LS1_Engine_Kit.pdf

Title: Re: Dash display for a V8 conversion
Post by: cem_devecioglu on 26 March 2011, 10:31:50

I hope I can find a guide on the net, how to buy fuel cheaply ;D ;D

Title: Re: Dash display for a V8 conversion
Post by: Lesopc on 26 March 2011, 11:20:18

Thanks cem, but it seems to only mention attachment to a 4L60E auto box. I guess that it would work almost the same with a Tremec T56 6 speed manual box???

Title: Re: Dash display for a V8 conversion
Post by: Lesopc on 26 March 2011, 11:23:00

Quote

Speed signal is taken from the abs sensors on the rear drive shafts, as I understand it. So any gear box or dif changes will have affected the gearing prior to the abs pick up. So it'll be fine mate.  :y

Cheers buddy.