Injector scaling id1000's / e38

[jpb1972]

Is there any need to scale id1000's with the e38 pcm? I'm running the old HPT VE OS with big map.

Thanks

[5FDP]

If your injector flow table maxxes out at 63.5lb/hr then yes you need to scale it. Double the stoich, half the flow rate and IVT.

[itsdaveonline]

If your injector flow table maxxes out at 63.5lb/hr then yes you need to scale it. Double the stoich, half the flow rate and IVT.

So when you say half the flow rate, you mean all the tables in there right? IE: multipliers such as flow rate vs volts, iat, flow etc...

What do you mean IVT? Can you call out specifically the tables in full name?

[5FDP]

It's just the Injector flow rate vs pressure table itself, you don't have to touch the volts , iat stuff.

IVT Terms = IVT, it should be labeled in there.

[itsdaveonline]

gotya - thanks this helps alot

[SultanHassanMasTuning]

depends on year of E38 08+ should be fine

[jpb1972]

Thanks for the replies. I'm 2011, so I'm guessing I don't have to worry about the scaling.

[SultanHassanMasTuning]

yea your good ^

[jpb1972]

yea your good ^

[bigwillys58]

If your injector flow table maxxes out at 63.5lb/hr then yes you need to scale it. Double the stoich, half the flow rate and IVT.

What does cutting the IVT in half do? Im asking because i have cut IFR in half and doubled stoich on my 08 GMC with ID1ks and havent noticed any thing odd happening.

Thanks
Jesse

EDIT: I guess i should have mentioned that i have not cut IVT in half

[itsdaveonline]

What does cutting the IVT in half do? Im asking because i have cut IFR in half and doubled stoich on my 08 GMC with ID1ks and havent noticed any thing odd happening.

Thanks
Jesse

EDIT: I guess i should have mentioned that i have not cut IVT in half

in for this info.




Also this works at like a 25% reduction scale right?

So for example flow rate vs KPA is multiplied by .75, same for IVT and then multiply stoich by 1.25?

[bigwillys58]

Also this works at like a 25% reduction scale right?

So for example flow rate vs KPA is multiplied by .75, same for IVT and then multiply stoich by 1.25?

It would but i think the value for your stoich table would actually be 1.33333 ( 1/.75 ) better let an expert chime in first before taking that to heart though.

jesse

[07GTS]

IVT is base on AFR as well as other calculations so if u double stoich then the IVT thinks it super lean so its temp reading increases so if u scale it to the same as u do your stoich then it keeps it in check, if u multiply stoich by 1.25 then multiply IVT by .75 ect

[Alfdhalah]

There is an easy way to get around this.
change the values in table (Flow rate Mult vs. Volts) the whole table is set at 1 change to the difference value between 100LB to 63LB
so 100/63=1.587 set the whole table to 1.587

[07GTS]

There is an easy way to get around this.
change the values in table (Flow rate Mult vs. Volts) the whole table is set at 1 change to the difference value between 100LB to 63LB
so 100/63=1.587 set the whole table to 1.587

the hard coded limit is 63.5lb and even if u use the multipliers it still limits to 63.5lb thats why u have to scale the stoich/IFR/IVT