Turbo tbi

**buddrow** · 09-10-2016

The fuel and spark tables dont offer the best resolution for 2,3 bar applications, they are merely sufficient for 1 bar lol. Not saying it won't work, but you may have to fiddle with AE and the like to get driveability somewhat livable.
the 7427 has much better resolution, can support multiport injection with few mods and also can control an E trans.

**White Stripe** · 09-10-2016

Originally Posted by buddrow

The fuel and spark tables dont offer the best resolution for 2,3 bar applications, they are merely sufficient for 1 bar lol. Not saying it won't work, but you may have to fiddle with AE and the like to get driveability somewhat livable.
the 7427 has much better resolution, can support multiport injection with few mods and also can control an E trans.

Well I think I will throw in a 2bar and see how well I can get it to run naturally aspirated. If it works then move forward. If it doesn't then maybe run a piggyback with auxiliary injector instead.

**White Stripe** · 09-21-2016

Quick question. I'm cleaning up my na tuning. When I stab the throttle hard I get about 19:1 afr for about 1 second, then it comes back down to 14.7 or a little richer if in person mode. How can I fix the little lean spot? Or is that normal?

billygraves · 09-22-2016

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**Six_Shooter** · 09-22-2016

Originally Posted by billygraves

Consider poor fuel distribution if you use a TBI blow through set up. Blowing a stream of air onto the fuel will tend to steer fuel into unwanted ports. As Buddrow suggested, use the 7427 and a port fuel set up.

Or better yet, use a '7730 or '7749 with either $58 (stock 2 BAR code), or $59 (modified code to use 3 BAR and a whole slew of other improvements over $58).