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MoTeC RS Build
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damn that sounds really good! Keep up the good work sir!
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Post #4
MoTeC RS Build
Hi guys I don't post on here often, but I know at least a few of you would find what I'm doing with my RS interesting. The car is currently built with a 4 port head using a precision 6466. When I last had it on the dyno I laid down 687whp on the dyno before my tires wouldn't hold anymore. I'm...
www.focusrs.org
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So I really use v dyno or recommend it, but I was talking a customer about it tonight, and it had me curious as to what v dyno would say about a log I took earlier in the day.
This is really the first full pull I've done in the car and my fueling is still on the rich side. it's why you see that tq dip once the car get's into power, but still it's not bad. I need more mid range the car actually feels on the slower side to me right now haha. Even with my 60-100 acceleration right now being around 3 seconds.
![Rectangle Slope Plot Font Line]()
This is really the first full pull I've done in the car and my fueling is still on the rich side. it's why you see that tq dip once the car get's into power, but still it's not bad. I need more mid range the car actually feels on the slower side to me right now haha. Even with my 60-100 acceleration right now being around 3 seconds.
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Those are some pretty respectable numbers and for a guy who likes to go straight. The torque down low will be nice for launching. Your making power all the way through your rev range which is really nice! 2-step at the ~4200 mark should put you at ~20psi and well into your tq/power curve on launch
. Guessing this would net a sub 10sec run, just my .02$That may even break into the low 9s. as long as the drivetrain can handle it.
(don't quote me, it's been a while since i've been on the strip.. your 60ft is what I would like to see
).
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I'm likely going to need to launch much higher than 4200rpm, but I will cross that bridge after my gearset is built, and the motec is installed. I need to bring the power up in the mid range to make the car more fun. I also need to up my wot box. I have it set to cut at 8k right now but it's putting the limiter in at 7500 rpm right now.Those are some pretty respectable numbers and for a guy who likes to go straight. The torque down low will be nice for launching. Your making power all the way through your rev range which is really nice! 2-step at the ~4200 mark should put you at ~20psi and well into your tq/power curve on launch
That may even break into the low 9s. as long as the drivetrain can handle it.
(don't quote me, it's been a while since i've been on the strip.. your 60ftis what I would like to see
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Yeah your prob. right and i agree the mid range could use some love, but I'm confident you'll get it there! I'm along for the ride, you're blazing a path many don't/won't go down.
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I actually don't have any traction problems. what you are seeing is a big rich dip in my fueling that drops the car into the low 10's and causes a momentary bog. I'll smooth that out as I go along.Hah... fighting for traction at 100mph
Thanks for that teaser vid!
Ah, I was just noticing the "RS" traction control lighting up. That should mean that the ECU was detecting slip and was trying to compensate. You should try that run again with traction control fully disabled. When I was autocrossing, I didn't realize how much that was happening to me until I got a Gopro, and the RS would flicker at a lot of the corners. Now I fully disable it.
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The RS flashing in the tacho is what your referring too?
Thats not traction, that's a shift light, telling you to change gears now for optimum performance or something similar. And flashes when getting near the limiter. The closer you get the faster it flashes.
*edit for spelling🤪
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Awesome build Ryan! I recently purchased the same auxiliary fuel kit and BOV from Jessie Ringling of EMS (engineering motorsports solutions). My Focus build is on hold till I get into my new shop, so I will be installing it on my Ecoboost Mustang, and hope to have it ready to tune in the next 45 days!
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nice bud you are in good hands with Jessie.
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Jamo is 100% right. You will see the RS shift light will come on every time at 6k rpm, and it will start flashing at 6500rpm. Ford has actually been doing shift lights similar to that for years. like here in my old Ecoboost mustang. I had the premium package so when the lights are on and I get to 6500 rpm the tach will turn red to act as a shift light.
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NMRA has replaced their Atlanta Race with Rockingham, NC. Just down the road from you and over the hill for Jessie and me. We have had a couple of Ford front wheel drive cars run the 1/4 mile over the past couple of years... I think they were entered in the Ford Muscle class... I run my Ecoboost Mustang in the Super Stang class. But what I'm looking forward to is seeing the Ford Ranger and the all new Maverick compete in our Truck class!!
Doh! Don't mind me, it's been more than a day since I've seen it.... so of course I have to misremember it. I just re-watched some of my older autocross vids and see that there's an icon above the sport mode traction control light that flickers when traction control is happening. Carry on....
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So I went out and did another test hit today with it being a little colder out. I started actually spinning at 100mph....... I blame you.Hah... fighting for traction at 100mph
Thanks for that teaser vid!
you can see my rpm jump here while I'm spinning lol
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