# Fast Motorsports FRC simple combo great results

**URL:** <https://forums.speedlife.net/t/fast-motorsports-frc-simple-combo-great-results/249314>\
**Category:** Shift518 Automotive\
**Created:** [December 23, 2009, 7:55pm UTC](https://forums.speedlife.net/t/fast-motorsports-frc-simple-combo-great-results/249314 "2009-12-23T19:55:51Z")\
**Posts on this page:** 1\
**Showing post:** 21

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**Author:** ![Auto0utcast1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/auto0utcast1/32/6546_2.png) [@Auto0utcast1](https://forums.speedlife.net/u/Auto0utcast1)\
**Post date:** [December 23, 2009, 8:57pm UTC](https://forums.speedlife.net/t/fast-motorsports-frc-simple-combo-great-results/249314/21 "2009-12-23T20:57:32Z")

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> [@i can't wait to hit the dyno](https://forums.speedlife.net/t/i-cant-wait-to-hit-the-dyno/27605/33):
>
> Dynojet yes as seen in the background banner.
> 
> I experimented with slightly leaner and slightly richer AFR’s and this is what made the most power. Made over 25 pulls tonight after spending 4 hours dialing the car in from scratch. There isnt a spot in that fuel map I did not touch. Was doing some gas consumption testing as well.
> 
> AS CAST 243!!! No milling no porting just a set of patriot gold valve springs.
> 
> I have noticed our shitty “93” out here with 10-15% ethanol needs the slightly richer mix to make power now. In the past I have put literally 1 gallon of 100 in 8-9 gallons of pump gas but I did not do any tricks I wanted real results. I just use the good octane gas to counter affect the ethanol crap.

very good info here. i admire your honesty. :thumbup awesome numbers then and id love to see more real world results like this man! cant wait to learn a thing or 2 when u come to ny.

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