Hello from cold Russia! I have a silverado 2000 2500 LQ4. My friend gave me a magnusson 1700. I installed it on the car, now I need to tune. Engine stock. 44lb injectors. help friends.
Hello from cold Russia! I have a silverado 2000 2500 LQ4. My friend gave me a magnusson 1700. I installed it on the car, now I need to tune. Engine stock. 44lb injectors. help friends.
Last edited by promobass; 03-12-2023 at 04:46 PM.
You'll need to start by inputting the correct injector data and pull about 5 degrees of timing from .6 airmass and up. Dial in fueling then timing.
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
Do I need to upgrade to a 2bar os for 7-8psi boost?
I recommend that you upgrade to a 2 bar MAP sensor and a 2 bar OS. It's certainly an advantage to allow the computer to change target AF ratio based on boost level.Originally Posted by promobass
do i need to use the original maf sensor or the increased performance? Or even turn it off?
???
???
Your previous question isn’t really clear.
Do I need to use maf lq4 or, for example, l92 maf?
Most boosted vehicles are tuned In speed density without a MAF. In some occasions i believe there is some that have MAF but they are running very little boost.
Whether to tune with or without the MAF is a larger question I'm not qualified to answer. But I don't think it matters which MAF you use, it just needs to be scaled correctly. I would stick with the one that is stock with your ECM.
how to correctly complete this table with 42lb injectors 17113739? Do I need a fuel pressure vacuum control line?Безымянный.jpg
The g/s symbol - click on it and change it to lb/hr. Also you REALLY REALLY need all of the injector data for it to be right. Otherwise you'll chase your tail a lot. 42lb doesn't sound right if that's what came with the blower. Would think they would be bigger?
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
I remember the early days of the mp112 blowers for the trucks they only come with the 8.1 marine injectors.
I checked them by number and tested them on the injector test stand. they are 42lb.
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