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SVTPerformance's Chain of Restaurants
Tuning À la carte
Interesting fuel issue- any thoughts?
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<blockquote data-quote="encasedmetal" data-source="post: 14719225" data-attributes="member: 80137"><p>So I recently swapped out my procharged f1a setup for a kenne bell 2.6h setup. nothing in the fuel system changed except for the fuel rails. I also changed the maf to a SCTBA2600 (not fuel system related). When I confirmed all vacuum leaks were addressed (first start idled at 1700rpm), the car would not fire anymore. soaked plugs and strong fuel fumes led me to pull fuel out of the maf table. </p><p>When I started the tuning for the new setup I used two different tunes to weed out solutions- one tune was from that of a car using this exact setup and went 9.xx's so it should've been really close to what I needed. The other tune was a startup tune I put together. both tunes required me to pull 35% fuel out of the maf table for the car to fire- and it still idles at 11.4-11.7 afr. Something is going on and I don't know what it is. I shouldn't have to pull that much fuel out. adaptive is turned off, and I set fuel pressure at 39psi without a vacuum source, and it reads 30 psi with the vacuum reattached. any thoughts? I have a datalog of it idling but it's not attaching in it's csv file format.</p></blockquote><p></p>
[QUOTE="encasedmetal, post: 14719225, member: 80137"] So I recently swapped out my procharged f1a setup for a kenne bell 2.6h setup. nothing in the fuel system changed except for the fuel rails. I also changed the maf to a SCTBA2600 (not fuel system related). When I confirmed all vacuum leaks were addressed (first start idled at 1700rpm), the car would not fire anymore. soaked plugs and strong fuel fumes led me to pull fuel out of the maf table. When I started the tuning for the new setup I used two different tunes to weed out solutions- one tune was from that of a car using this exact setup and went 9.xx's so it should've been really close to what I needed. The other tune was a startup tune I put together. both tunes required me to pull 35% fuel out of the maf table for the car to fire- and it still idles at 11.4-11.7 afr. Something is going on and I don't know what it is. I shouldn't have to pull that much fuel out. adaptive is turned off, and I set fuel pressure at 39psi without a vacuum source, and it reads 30 psi with the vacuum reattached. any thoughts? I have a datalog of it idling but it's not attaching in it's csv file format. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Interesting fuel issue- any thoughts?
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