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Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Thu Jan 09, 2020 7:27 am
by hot308vb
Hey guys just after some advice.
I'm helping a mate get his vr Stateo going with a 6/71 blower on his worked 5L. Recently we've just done a 2speed powerglide conversion on it and got it going sweet but now he's got himself a full supercharger kit including boost referenced blower carbs so efi is outta the question...
I'm thinking if I adapt a tps to a carb and put a 2 or 3 bar map sensor I should be able to accurately control spark for all boost conditions??? Or is it more than just that?
Any info is much appreciated
Cheers Rob

Re: Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Fri Jan 10, 2020 11:20 am
by Holden202T
rpm map and tps are the main ones, if you add cts and even mat into the setup it would work pretty well.

even if you cant get the tps onto the carby, just plug it in and leave it in the loom and then it will work ok, you just need to mask the tps stuck DTCs.

Re: Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Fri Jan 10, 2020 4:59 pm
by hot308vb
Thanks 202T but I thought the ecu would need to see open throttle to move to normal ve and boost ve maps? Correct me if I'm wrong tho

Re: Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Tue Jan 14, 2020 2:24 pm
by antus
Those maps are MAP sensor vs RPM, so no, not TPS. TPS is used mainly for power enrichment fuelling, and electronic transmission gear kickdown.

Re: Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Tue Jan 14, 2020 10:24 pm
by hot308vb
Ok sweet, cheers for that Antus. We're making headway with the project but held up with a "bolt on kit" not fitting :rant: but waiting on 3bar map sensor and other bits atm to finish that side of it.

Re: Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Wed Jan 15, 2020 2:23 pm
by vs ss
That will certainly liven the old girl up! Should do a thread on it so we can see all the progress :thumbup:
Geeee what are those filthy things on top :lol:

Re: Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Wed Jan 15, 2020 4:42 pm
by hot308vb
lol yeah i know ive been into im over them but i think ive convinced him to do hidden injectors in a efi bird catcher scoop later on... 8-)
ill start a build thread shortly, cheers :thumbup:

Re: Spark only 11P 424 on 6/71 blown vr Stateo

Posted: Wed Jan 15, 2020 5:21 pm
by Charlescrown
The reference in the pic helps.