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Old 06-16-2014, 11:52 AM   #1
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Default Garrett vs EFR at DIYAutotune discussion

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Originally Posted by shuiend View Post
I am not sure if there will be room to fit the downpipe off an BW EFR with how the new manifold sits the turbos.
After playing with a couple EFR turbos, I'd be inclined to look at a GTX anyway...
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Old 06-16-2014, 11:58 AM   #2
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Ut oh. Why's that?

Precision 4828.
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Old 06-16-2014, 12:00 PM   #3
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BW s256?
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Old 06-16-2014, 12:02 PM   #4
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BORG WARNER S366
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Old 06-16-2014, 12:03 PM   #5
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Even an s256 would be fine, probably a better choice than a non-GTX Garrett.
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Old 06-16-2014, 12:38 PM   #6
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If you want lowend grunt and crisp resonse, the s366 is definitely the way to go.
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Old 06-16-2014, 02:31 PM   #7
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Quote:
Originally Posted by Ben View Post
After playing with a couple EFR turbos, I'd be inclined to look at a GTX anyway...
Not to derail the thread, but this is the first time I have heard anyone blaspheme the mighty EFR on MT.net.

Interested in your experiences.
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Old 06-16-2014, 02:36 PM   #8
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+1

an angry mob is already assembling
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Old 06-16-2014, 02:58 PM   #9
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Yeah I was just mentioning it out of curiosity. I have a lot more work to do on my car before I replace my hot side. I know because of soviet everyone lusts over the efr & it does look like a great turbo. I'm really curious though about the billet precision & gtx. They appear to be comparable.

Don't mean to derail but Jeff's (drift) build is about the only gtx info I've seen and it looks just as legit as the efr. Him and soviet both have real build with quality parts (and appear to know what they're doing).

Anyway... I do like the look of that manifold. Looks way more serviceable.
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Old 06-16-2014, 03:01 PM   #10
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Isn't Jeff's build based on the 2.5 MZR engine? Not at all comparable to the BP... Or am I confused?
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Old 06-16-2014, 03:22 PM   #11
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He has a bp4w w/ a square top. See the BP stamp?

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Old 06-16-2014, 03:25 PM   #12
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There are others too, soviet just happens to have pretty dyno plots vs everyone else either has clips filmed with a potato, or a plot that looks like it was drawn on a napkin by a kid having a seizure, or is limp pee pee cause the person doesn't have the ***** to run ALLOFIT

Both turbo's show great results on other platforms too, though I'd have to say the EFR still seems to dominate on other platforms as well. Everyone raves about "dat response". Building an insta-5psi on throttle tip in def sounds delicious to me.
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Old 06-16-2014, 03:28 PM   #13
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Quote:
Originally Posted by 18psi View Post
There are others too, soviet just happens to have pretty dyno plots vs everyone else either has clips filmed with a potato, or a plot that looks like it was drawn on a napkin by a kid having a seizure, or is limp pee pee cause the person doesn't have the ***** to run ALLOFIT
I fall into the last category. Comments of people who drive my car are still along the lines of, "it doesnt drive like a turbo car, you hit the pedal and it just goes, and goes and keeps going, and you think you should shift because the needle is off the tach but you havent hit redline yet and its still going."
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Old 06-16-2014, 03:31 PM   #14
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From Jeff's sig:

Quote:
Built MZR 2.4L/AEM V2/GTX3071.63 housing/26psi 597rwhp/470tq/dyno pack dyno
I think that BP you posted was his old engine. Unless he went BACK to a BP after going to the MZR. Did he have the GTX on the old BP as well?
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Old 06-16-2014, 03:50 PM   #15
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https://www.miataturbo.net/build-thr...a-72354/page2/

In January he posted pics of same motor. plus mzr has reversed exhaust and intake and i do not see such. don't know man. Also:

Final numbers: 374whp/331wtq @22psi on a gtx2860 .64
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Old 06-16-2014, 03:55 PM   #16
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that's a different Jeff

You said Jeff talking about jbguillo. I said Jeff talking about turns101, Jeff Abbott.

Indeed. Carry on.
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Old 06-16-2014, 03:55 PM   #17
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Quote:
Originally Posted by Leafy View Post
I fall into the last category. Comments of people who drive my car are still along the lines of, "it doesnt drive like a turbo car, you hit the pedal and it just goes, and goes and keeps going, and you think you should shift because the needle is off the tach but you havent hit redline yet and its still going."

This does sound awesome. I did read your comment about your car feeling better than someone else that had a gtx leafy but they have an fm log and hopefully a big enough exhaust? according to the dyno from the drift car it looks like it should similar spooling and response no?
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Old 06-16-2014, 09:40 PM   #18
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Quote:
Originally Posted by 18psi View Post
+1

an angry mob is already assembling
Something along the lines of dyno Garrett, replace with BW, make less power with more boost and less response. As in fail all over.

I have dyno plots, but not the customers' permission to share.

In the next couple weeks, we'll be tuning a car that just had a Precision turbo replaced by a BW EFR. I have fingers crossed.
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Old 06-17-2014, 12:48 AM   #19
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I'll be very interested in the results as I am currently running a precision 4828.
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Old 06-17-2014, 03:24 AM   #20
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Quote:
Originally Posted by Ben View Post
Something along the lines of dyno Garrett, replace with BW, make less power with more boost and less response. As in fail all over.
I assume said experience is on a BP or B6 and not on some other platform with limited relevance to our application? Having driven lots of small GT25 Miata and one poorly tuned Borg EFR Miata, the suggestion that the EFR has "less response" is really hard for me to stomach.
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