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**REAL rwhp** 2.7L vs 2.3L

BuddysB6g

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We know it's all speculation at this point, but manual trans has less power scavenge as auto, so does anyone have any analysis of 2.7L/auto vs 2.3/man RWHP?
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BuddysB6g

BuddysB6g

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Welp, should've Googled first : If you go with 15% for manual and 20% for auto, divide the rwhp by .85 for manual and .80 for auto.

So- 2.7 = 310 x 20% = 62 310-62 = 248 rwhp and 2.3 = 270 x 15% = 40.5 270-40.5= 229 rwhp

add: 2.3/auto = 216 rwhp
 
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Used2jeep

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But is the curve "peaky"? I'm a granny I admit. Most of my driving is sub-2k rpm which is where the graphs typically start.
 

Zinn

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But is the curve "peaky"? I'm a granny I admit. Most of my driving is sub-2k rpm which is where the graphs typically start.
I have the 2.3L in my Ranger, there are a few issues here:

1. HP / Torque curves always have peaks in any gas engine (naturally aspirated or turbocharged/supercharged). The peaks are not ever near the bottom of the RPM curve.

2. This is especially true for a turbocharged 4 cylinder (and even 6 cylinder). Torque at low RPMs is low because the turbochargers are not spooled up. Modern engine calibrations and auto transmissions try to disguise this “turbo lag.” Once the turbo is spinning you do get a rush of torque but a good calibration will keep it relatively flat through the rest of the rev range

3. If you’re driving below 2k RPM in any car you won’t have to worry about this because you’ll be going slow and sipping gas. My 5.0L Mustang is very sleepy and smooth at these RPMs. The 2.3L is no different. Unless you buy a Tesla you’re not going to hit a wall of torque when you first touch the gas pedal.

People say the Ecoboost is either “Eco” or “Boost” and my experience is this is true. For grannying around town it’s a very quiet and fuel efficient ride, but it has plenty of power when you need it.

I was tailing my husband (him in the Ranger, me in the Mustang) this morning as we were dropping the truck at a shop and he whipped it past a semi that cut us off, he boosted it _very quickly,_ it took me a lot longer to react with my manual transmission and by the time I did that Ranger was flying. It’s a surprisingly powerful engine.
 

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People say the Ecoboost is either “Eco” or “Boost” and my experience is this is true. For grannying around town it’s a very quiet and fuel efficient ride, but it has plenty of power when you need it.
I can confirm. This statement cannot be anymore true.
 

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I can confirm. This statement cannot be anymore true.
Yep, same for our 3.5 EB Flex. It doesn't help that the Flex is HEAVY and shaped like a brick, but it gets horrendous gas mileage and has a tiny-ass tank.
 

SoccerDude

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Yep, same for our 3.5 EB Flex. It doesn't help that the Flex is HEAVY and shaped like a brick, but it gets horrendous gas mileage and has a tiny-ass tank.
Ford Edge Sport 2.7L in the garage, same issue with the tiny fuel tank. I have no idea why Ford loves tiny fuel tanks. MPG ranges from 18 to 29 depending on your driving. ?
 

Andrew_EOD

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My current ride is the 2.0L ecoboost Focus ST. I still manage over 29 mpg... for what it's worth.
 

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Ford Edge Sport 2.7L in the garage, same issue with the tiny fuel tank. I have no idea why Ford loves tiny fuel tanks. MPG ranges from 18 to 29 depending on your driving. ?
It seems Ford only cares about the range in the F-150 (which to their point, is the #1 vehicle in sales in the US). I don't really care about gas mileage myself (as long as it's not in the teens and doesn't spit out an unreasonable amount of emissions), but I DO care about not having to fill up 3 times on my way to the beach. I'd love to be able to option an auxiliary gas tank for the Bronco.
 

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Welp, should've Googled first : If you go with 15% for manual and 20% for auto, divide the rwhp by .85 for manual and .80 for auto.

So- 2.7 = 310 x 20% = 62 310-62 = 248 rwhp and 2.3 = 270 x 15% = 40.5 270-40.5= 229 rwhp

add: 2.3/auto = 216 rwhp
Sweet, my manual 2.3L is looking better and better all the time. Never thought Id be so excited about a 4 banger.
 

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MHand52

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Welp, should've Googled first : If you go with 15% for manual and 20% for auto, divide the rwhp by .85 for manual and .80 for auto.

So- 2.7 = 310 x 20% = 62 310-62 = 248 rwhp and 2.3 = 270 x 15% = 40.5 270-40.5= 229 rwhp

add: 2.3/auto = 216 rwhp
I wouldn't base your calculation on the "dated" 20% loss for auto and 15% loss for a manual. Manuals do have less DT loss than an auto, but the 10R80 has been noted to have historically low loss compared to other auto transmissions of the past, and certainly is closer to the 15% number than it is 20%. I was deep in nerd mode when the 18 Mustang came out and I spent months comparing auto Dyno numbers to Manual dyno numbers.

https://www.autoevolution.com/news/...veals-coyote-v8-produces-415-rwhp-121385.html

Many tests like these show the 10R80 cars making between 405 and 415 stock, estimating DT loss between 12-15%! Even if the 2018s are underrated (which I dont think so from experience in Mexico), 480HP puts DT loss on the Auto at 14%. MT82s Are bringing only slightly lower than that, 10-14% DT Loss.
 

Studawg

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Welp, should've Googled first : If you go with 15% for manual and 20% for auto, divide the rwhp by .85 for manual and .80 for auto.

So- 2.7 = 310 x 20% = 62 310-62 = 248 rwhp and 2.3 = 270 x 15% = 40.5 270-40.5= 229 rwhp
Major mistake in your math here. The 2.3L manual will have 229.5 HP at the wheels! :ROFLMAO: :ROFLMAO:

But seriously, only a difference of 18.5 RWHP between the 2.3L manual and the V6 Automatic?

Thats only a gain of 8%!

Wait, what's this?.........

Ford Bronco **REAL rwhp** 2.7L vs 2.3L Screen Shot 2020-09-17 at 11.59.05 AM



https://www.knfilters.com/blog/gain...ower-for-your-2018-2019-ford-mustang-2-3l-l4/

Boom. Done. :cool:

Come on, where am I going wrong here? Somebody burst my bubble.
 

Gr8Hortoni

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by 5 stars chassis dyno, real power is about 255/280 tq, not sure where I saw it but the 2.7 was around 265-270 I believe. Both numbers were from chassis dynos. Seems like the turbo engines (in these cases anyways) didn’t have as drastic of a drop off as is the usual case.
 

Studawg

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I wouldn't base your calculation on the "dated" 20% loss for auto and 15% loss for a manual. Manuals do have less DT loss than an auto, but the 10R80 has been noted to have historically low loss compared to other auto transmissions of the past, and certainly is closer to the 15% number than it is 20%. I was deep in nerd mode when the 18 Mustang came out and I spent months comparing auto Dyno numbers to Manual dyno numbers.

https://www.autoevolution.com/news/...veals-coyote-v8-produces-415-rwhp-121385.html

Many tests like these show the 10R80 cars making between 405 and 415 stock, estimating DT loss between 12-15%! Even if the 2018s are underrated (which I dont think so from experience in Mexico), 480HP puts DT loss on the Auto at 14%. MT82s Are bringing only slightly lower than that, 10-14% DT Loss.
DOH! I knew it. Too good to be true.

Ok so lets say 14% loss in the auto and average of 10-14 puts it at a 12% loss in the manual.

So, math comes out to.......

266.6 RWHP in V6 Auto
237.6 RWHP in 2.3L Manual

So 29 HP difference between the 4 banger and the V6.

29/237.6 = 12.2%

So the V6 auto gives you a 12% increase in real HP over the 2.3L Manual.
 
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BuddysB6g

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