Dry kit and a MAF-T

[Kheldar]

I was wondering, coming from a LS1 background with nitrous, if a blow through set up would compensate for a dry shot? I know ls1 f-body's spray a dry shot before the MAF and it makes up and adds the fuel you need. Would the MAF-T setup be able to do this also?

[Dorifto]

I would imagine, since you're using the same GM MAF [or similar GM MAF] as the LSx cars, that it would provide the same signal to the MAF-T box as it would the ECU on a GM car.

This is purely on theory, as I've never heard or seen this done before, but if it's common GM knowledge, I don't see why not.

I've always shyed away from dry nitrous kits, there's a lot of room for error and lean-burn detonation.

[Kheldar]

in the LSX world a dry shot is actually safer, I just dont know if the stock ecu will do the same, or if the translator will do all the work.

If it will, then a small 50 shot will be easy to use, and VERy easy to hide.

[thekellbeast]

Have you gotten any solid answers or results on this? I have a dry nitrous kit sitting in my room that I want to run, or convert it to a wet kit.

[LaN-]

first off i'm not the most experienced on Nitrous, but here is what i've come up with when i had a dry shot.

I was running the stock 2g mas and had a dry shot going into the UICP. When i would hit the nitrous my wideband got really lean, so now i'm converting to a wet setup. Since our cars have big fuel pumps you don't need to put another in. Just run a T off your feed line.


As far as putting the nitrous before the MAS, i wouldn't trust this, but again i don't know enough about it. Are you saying that putting it before the mas will make the ecu compensate with fuel?

Either way i think the best thing to do is a wet setup.

[twack]

They are saying that if you use a gm translator and spray before the mas, will the change in temp add more fuel without tuning

[sbiggi]

With the MAFT you can use the AUX line so that the maft adds airflow (fuel) when the nitrous solenoid turns on. I ran mine like that on a 55 dryshot for a while with no issue.

You just need to make sure your injectors are big enough to add in the right amount of fuel and that you tune properly for it.

[LaN-]

Sweet!, thanks guys.......sorry if i wasn't any help, but at least i learned something

[thekellbeast]

Great, another reason to switch to blowthrough... and another reason to spend more of my hard-earned money.

[twack]

Thats good to know and all ( i got maft and dsm link) but the question out there is will the cold shot of nitrous make the maf add more fuel.

[talontd92tsi]

Originally Posted by Kheldar

I was wondering, coming from a LS1 background with nitrous, if a blow through set up would compensate for a dry shot? I know ls1 f-body's spray a dry shot before the MAF and it makes up and adds the fuel you need. Would the MAF-T setup be able to do this also?

Not exactly the way the LS1 ecu would, but ill explain that

Originally Posted by Kheldar

in the LSX world a dry shot is actually safer, I just dont know if the stock ecu will do the same, or if the translator will do all the work.

If it will, then a small 50 shot will be easy to use, and VERy easy to hide.

yeah, safer due to the tendancy of the LSX manifolds collecting fuel and backfiring through the intake.

Originally Posted by sbiggi

With the MAFT you can use the AUX line so that the maft adds airflow (fuel) when the nitrous solenoid turns on. I ran mine like that on a 55 dryshot for a while with no issue.

You just need to make sure your injectors are big enough to add in the right amount of fuel and that you tune properly for it.

HERE is where the MAF-T and stock LSX setup differs, The MAF-T takes a signal, and adds fuel based on what you tell it to do. BUT, the MAF-T dosent actually calculate the difference in temperature, its set, at 80* Fahrenheit, due to the lack of an IAT sensor. The LSX ecu uses that IAT sensor to measure the ice cold temperature of the nitrous, and actually adds fuel because of the denser air that it thinks its ingesting (as if its really cold outside) and (if i remember correctly) it adds a small bit of timing...

so the simple answer is yes, you can, but no, not for the same reasons.

[TurboAnything]

I tryed it and it did not work well the car leaned out a full point and started to knock this was on a 110hp shot though. I also added 20% fuel on the dsmlink and not mutch of a change.