Back on 93 tune after a year on ethanol...

[4sfed4]

LSD is wonderful for applying power in turns. However it does not solve the problem of straight line acceleration. I’ve been in a big turbo Fiesta with LSD. When you hammer the throttle, it is just like my car, except with my car one tire Is spinning, with the LSD car both tires are spinning.

It’s a great mod but it doesn’t solve the traction issue.

As noted in your video, this is where those undercarriage braces come in, I am looking into some of those soon......[emoji3581]


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[jeff]

Merry Christmas everyone. I'm about to make a vid on this topic for my YT channel. After months on the 93 tune I think I've resolved to stay there for pretty much ever. I've done a ton of thinking on this. Would love any final thoughts you might have as I prep my notes for a discussion vid.

This is repeating a bit but it comes down to this - it's about where the power increase appears and is useable when going from 93 to e30. The bottom line is that I can only use the +26hp that my e30 tune offers beyond about 45mph due to traction issues. How often am I legally doing that? For the occasional pull against a new Mustang or GTI it's fun, but even then in traffic that's not legal or safe to do. So the only option is (a) track or (b) interstate. How often am in in either of those contexts to use the extra power? Pretty much never since I don't track and I'm not interested in going to 100mph on I-20.

So after years of enjoying my 304whp only about 1% of the time I drove the car, I've become quite content with 278whp instead. The car gets to 60 in 2nd gear which is the same on 93 or e30 due to loss of traction. Sure maybe I'll lose a roll race in Mexico that I could have won...on occasion...but I just can't justify putting ethanol in the car anymore. I even gave all my e85 away.

Guess I'm getting old, I just had a birthday. Or maybe 278whp is enough for a Fiesta. Or maybe since my other car has 73hp the Fiesta feels super fast even on pump tune.

It's crazy that after building the car to all this power level I can't hardly ever use it. But I'm not regretting. I can still grab some Race Gas or e85 for moments I want to get that extra oomph.

 

[firestang70]

Jeff great conversation as usual. I'm 50 and have had my 19 for a year, I use my Fiesta as a dd for 9 months out of the year. 90% is highway plus I live in a rural area with a lot of nice curvy country roads. I followed your YT channel and got the Rmm, motor mount inserts, Pierce 6 pt brace and rear bar per your recommendations and enjoyed them making the car more "fun". Im stock turbo currently, upgraded IC, drop in filter, dizzy tune e30 and 93. I drive 93 95% of the time and will only use the e30 on the track. I will pay the car off in a year. I'm debating upgrading the turbo or getting an additional car to play with at the 1/4 mile dragstrip. I'm between Whoosh hybrid and s280. Haven't driven a car with either upgrade yet but, mind set is s280. Reasons since the turbo will spool a little slower maybe 1st gear traction maybe a little more tractable? Also since will hold power further up the rev range to make each gear a little more useable? Since a hybrid spools as quick as stock 1st and 2nd gear spirited launches are a challenging dance? Once warmer weather approaches want to find local folks with each upgrade and drive them and compare.

 

[jeff]

...since will hold power further up the rev range to make each gear a little more useable? Since a hybrid spools as quick as stock 1st and 2nd gear spirited launches are a challenging dance? Once warmer weather approaches want to find local folks with each upgrade and drive them and compare.

Thanks man glad my car/channel has been helpful. All your reasoning here seems correct to me. Good luck finding folks with each upgrade. I've studied all the hybrids and big turbo options on our cars and TBH the two you're comparing are so similar (we're talking maybe a 5% difference in power level) I'd go with the company you trust rather than larger power level. I'd probably get a Whoosh if I were doing it again because Ron is the GOAT and install is a bit easier.

Here's the vid, I made one quick today...don't get me wrong I love my car and the power is great...just being logical here. If we're honest (power hungry car nuts tend not to be) we'd admit that anything other than stock hardware stock software has traction challenges and limits the driver from enjoying the full potential of what the Fiesta ST has to offer. As much as I sound like a curmudgeon in this video I absolutely love my car especially on dry days when the tires are warmed up.

View: https://youtu.be/4xEaTZpqKUw


Fiesta ST: Best power level for street driving? - YouTube

 

[M-Sport fan]

Yeah, spinning rear wheels could possibly help rotate the car, and it enables the drifters to 'do their thing', but spinning the FRONT wheels does NOTHING good, or useful (except for a smoke show).

 

[Dpro]

Yeah, spinning rear wheels could possibly help rotate the car, and it enables the drifters to 'do their thing', but spinning the FRONT wheels does NOTHING good, or useful (except for a smoke show).

This is why the S280 is definitely a better option than the Whoosh Hybrid IMO.
I went with the S280 because it does not give you the donkey kick down low the Whoosh hybrid does. I have driven both setups and can tell you IMO its easier to drive my s280 down low than it is a Hybrid.
Jeff can say he has studied stuff and no offense to his experience but he has only owned and driven an older hybrid x47r.
The S280 is the perfect comprimise for someone wants something that has room to grow but delivers great power even on a 91 tune . I logged 270HP yesterday on my s280 on 91.

 

[M-Sport fan]

^^^Granted, but even so, IF I ever went to an S280, the whole 'boost in gear' tuning thing (along with a good limited slip diff) would be a MUST for me, in order to even consider installing one.

 

[jeff]

Jeff can say he has studied stuff and no offense to his experience but he has only owned and driven an older hybrid x47r.

I respect your opinion of the S280. I don't own an x47r. I've been in a car with that turbo, it is significantly different than the x47 that I have. And I'm making 277whp on pump gas.

The S280 would be one of my top choices if I ever needed another turbo, but with x47s racking up close to 100,000 miles in some cases now and still making good power, I anticipate mine holding up.

 

[Dpro]

I respect your opinion of the S280. I don't own an x47r. I've been in a car with that turbo, it is significantly different than the x47 that I have. And I'm making 277whp on pump gas.

The S280 would be one of my top choices if I ever needed another turbo, but with x47s racking up close to 100,000 miles in some cases now and still making good power, I anticipate mine holding up.

my bad on the x47r I knew it was a x47 variant. I also agree that if works i.e. is not broken or is not unsatisfying why fix.
I also know that when you got the x47 the S280 did not even exist yet. Or was just barely coming into existence.
Who knows I could have wound up with one.

 

[jeff]

my bad on the x47r I knew it was a x47 variant. I also agree that if works i.e. is not broken or is not unsatisfying why fix.
I also know that when you got the x47 the S280 did not even exist yet. Or was just barely coming into existence.
Who knows I could have wound up with one.

I think you picked a good one. FWIW Adam Brunson of Tune+ (my tuner) preferred the X47 for years over pretty much any hybrid out there, even the newer "better" ones that Pumaspeed and competitors made, due to flow limits and balance. However it's no longer available and he installed an s280 on his Fiesta which says to me that's his new turbo of choice, and I respect his build choices as he's done such a great job on this platform for many of us over the years.

 

[EnthusiaST]

^^^Granted, but even so, IF I ever went to an S280, the whole 'boost in gear' tuning thing (along with a good limited slip diff) would be a MUST for me, in order to even consider installing one.

I dead hook 2nd in the warmth with good tires and no LSD. You may not need boost by gear with the right setup.


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[Dpro]

I dead hook 2nd in the warmth with good tires and no LSD. You may not need boost by gear with the right setup.


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heh I thought at first I might have boost by gear but I can spin it up in 1st if I feather the pedal. If I nail I will just spin the tires and when I dump to 2nd it spins and catches and goes lol. I know for only running crap 91 I am getting a hefty amount of power.

 

[jeff]

Yeah this gets into the options of either

a) run full power tune and feather throttle with right foot
b) run boost by gear tune and not think about it but always wonder how awesome it would feel to give the car the beans
c) run full power tune and have it controlled by traction control added to the tune

I have tunes for A and C above.

 

[gtx3076]

Yeah this gets into the options of either

a) run full power tune and feather throttle with right foot
b) run boost by gear tune and not think about it but always wonder how awesome it would feel to give the car the beans
c) run full power tune and have it controlled by traction control added to the tune

I have tunes for A and C above.

I wouldn't want boost by gear unless I knew how to tune and could dial it in on a whim. Changing tires or suspension could change the traction threshold.

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[jeff]

I wouldn't want boost by gear unless I knew how to tune and could dial it in on a whim. Changing tires or suspension could change the traction threshold.

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Yeah exactly. I considered boost by gear then because of what you said I'd rather control the power with my right foot than only get maybe 80% of what's possible because it's limited based on changing variables.

I hate to say this but the last year of owning my car has "opened my eyes" in that I have all this power but really never use it. Still love the car to death. Wouldn't change what I've done to it. But I am admitting that I can only use and enjoy 100% of my horsepower 5% of the time. I was blinded by reaching the 300whp number in the early days. Sounds great and the dyno charts look wonderful but reality is that power only happened on a dynamometer and is only reproduced a few seconds each time I drive the car. My last big build was a Forester XT which I owned for 4 years and modified to about the same power level on 93 octane. Difference was four tires spinning instead of one, the car NEVER lost traction and could keep up with new M3s. However the Fiesta is still more fun.

TBH this problem exists with most cars. But with a modified car it's definitely exacerbated.

AWD is needed.

 

[EnthusiaST]

But I am admitting that I can only use and enjoy 100% of my horsepower 5% of the time.
AWD is needed.

This winter I’m feeling this statement especially. I had my tuner throw a lower boost tune in map slot 2 to help. During the summer though spinning a little in 1st is fun. 2nd gear is my favorite one. Unless I can ride in a car that has 350+whp and puts it down in 2nd gear, I don’t really see myself going over the 300whp range. 93 is where it’s at [emoji23].


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[Tom_FordFiestaST]

This is totally off subject and I hope you can answer this question. Why is Cobb the only access port that I see for the Fiesta ST are there any other different companies besides Cobb that have access ports for tuning the Fiesta ST? The reason why I'm asking this is because there's nobody in my city that tunes the fiestas with Cobb access port.

 

[Erick_V]

This is totally off subject and I hope you can answer this question. Why is Cobb the only access port that I see for the Fiesta ST are there any other different companies besides Cobb that have access ports for tuning the Fiesta ST? The reason why I'm asking this is because there's nobody in my city that tunes the fiestas with Cobb access port.

That's odd. I know of at least one guy here in SATX that does custom tuning (Fiesta specifically) but there's some mixed opinions on him and I'll leave it at that. What most of us do is e-tuning. It's super easy and gives great results. Some of the main tuners are Tune+, Dizzy, Stratified Auto, JST. Give them a search and you'll see they're super easy to work with. I'm currently tuned with Jason @ Dizzy Tuning but have worked with Stratified on other platforms.

 

[Dpro]

That's odd. I know of at least one guy here in SATX that does custom tuning (Fiesta specifically) but there's some mixed opinions on him and I'll leave it at that. What most of us do is e-tuning. It's super easy and gives great results. Some of the main tuners are Tune+, Dizzy, Stratified Auto, JST. Give them a search and you'll see they're super easy to work with. I'm currently tuned with Jason @ Dizzy Tuning but have worked with Stratified on other platforms.

Hot Tub Tuning!

 

[Erick_V]

Hot Tub Tuning!

I was trying to be vague but apparently I wasn't vague enough @Dpro lmao.

Too add to the original post I have found that traction on the stock snail has suffered (albeit on 4/32nds RS-Pros on E30 at 50F). I have my inspection in the morning and if I fail I'll buy another set of RS-Pro's but if I pass I'll wait a little longer and get RT-660's and see what all the hype is about. The thought of dead hooking in second on the RT660 makes me feel all tingly inside and wanting to install my 14psi Turbosmart WGA for the Dizzy E40a tune lol. Luckily I'm in Texas and I can run 200tw tires all year and be fine other than the somewhat rainy season. I don't know how you BT guys do it.