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turbo 4.8 is flat

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Old 06-27-2011, 05:51 PM
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Default turbo 4.8 is flat

just got my kb mp70 kit on and my five-o-motorsports injectors in and so far ive inserted some injector data ive found from other 60's but im not sure if this is even close to what i need. afr's look ok on w/b at wot. but just feels really flat
do i need to keep playing with the injector data or start tweakin the ve table which is stock at this moment.
Old 06-27-2011, 07:08 PM
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Did you get a sheet with the injectors? If you don't know for sure what they flow I would stop, and figure it out first. What are you using to tune?
Old 06-27-2011, 07:36 PM
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im using HP tuners. Ive got the flowrates (60lb) and have them in. I just dont know about the min pulse. short pulse adder, ect. i realized i only had about 1-4 * of timing in boost when the tune was set at 8*. So i bumped it up to 13-14 and im getting about 11. and runs better but i know theres much much more to do
Old 06-27-2011, 07:39 PM
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thought i posted a log but i guess it didnt work. ill try again with the increase of timing log.
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Old 06-27-2011, 07:41 PM
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Subscribed. Don't try to build a tune around improper injector data...
Old 06-27-2011, 07:50 PM
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Five-O should provide you with the data. You get the proper AFR by tuning air based on fuel, not fuel based on air... So you have to start with proper fueling information.
Old 06-27-2011, 07:56 PM
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Originally Posted by smokeshow
Five-O should provide you with the data. You get the proper AFR by tuning air based on fuel, not fuel based on air... So you have to start with proper fueling information.
Yes, they gave the flow sheet but that doesnt tell me what min pulse and those numbers i need. My afr's look pretty good with what ive used just wasnt sure if the other data ie. short pulse adder, ect would affect how sluggish it felt.
But I found that I needed to adjust my IAT spark correct as my setup is non-intercooled and my IAT's jump up into the 150's when i bulid full boost
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