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Old 04-16-2015, 10:28 PM   #3721
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Fun was had today.

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Old 04-17-2015, 07:28 AM   #3722
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are you doing pulls in 2nd gear on the dyno?
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Old 04-17-2015, 08:21 AM   #3723
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Quote:
Originally Posted by Braineack View Post
are you doing pulls in 2nd gear on the dyno?
4th gear.
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Old 04-17-2015, 08:47 AM   #3724
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That might explain the difference.
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Old 04-17-2015, 10:00 AM   #3725
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Quote:
Originally Posted by concealer404 View Post
That might explain the difference.
In....what exactly. The unexpectedly high figures or the delay in power?

(Remember I'm knew to all this)
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Old 04-17-2015, 10:01 AM   #3726
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6 speed?

If so lower gear ratio so maybe less spool.
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Old 04-17-2015, 10:03 AM   #3727
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Originally Posted by aidandj View Post
6 speed?

If so lower gear ratio so maybe less spool.
6 speed with 3.63 R&P
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Old 04-17-2015, 10:35 AM   #3728
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You weren't in the 1:1 gear, Ed was.

I'm fuzzy on how the final drive affects things on the dyno, but i do know that every time i've been on the dyno, the operator ignores the final drive and sticks it in the 1:1 gear.
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Old 04-17-2015, 11:26 AM   #3729
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AFAIK 1:1 gear means the input shaft is directly connected to the output shaft, therefore no losses from the countershaft.

Also from BBundy and others we know that 4th gear is one of if not the weakest in the 6 speed (or at least the most likely to break out on track).
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Old 04-17-2015, 11:31 AM   #3730
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Yeah, I wouldn't suggest a bunch of 4th gear 6-speed dyno pulls with a high powered car. But afaik, 5th would only make the graph look better.
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Old 04-17-2015, 12:12 PM   #3731
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that second pull in the video is 4th gear? gets to redline in like 3 seconds.
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Old 04-17-2015, 12:28 PM   #3732
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Quote:
Originally Posted by Braineack View Post
that second pull in the video is 4th gear? gets to redline in like 3 seconds.

I could see it if the dyno wasn't loading up like... at all. But that pull is exactly why his graph looks the way it does.
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Old 04-17-2015, 12:50 PM   #3733
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Brain's talking about Jeff's video, not his dyno graph.
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Old 04-17-2015, 12:54 PM   #3734
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needs more drama!
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Old 04-17-2015, 12:55 PM   #3735
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Quote:
Originally Posted by hornetball View Post
Brain's talking about Jeff's video, not his dyno graph.
Yep i know. Jeff made it sound like the "second pull," which was the 3 second wonder, is what generated his 20psi graph.

If that's the case, the graph doesn't surprise me in the slightest.
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Old 04-17-2015, 06:26 PM   #3736
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I'll go over the videos later, but I am 100% sure all pulls done on the graph were in 4th gear.

Maybe I just picked an AFR tuning clip and mistook it for the 4th gear pull in my tired state.
I can understand your confusion but I have no reason to lie as I have nothing to prove/nor care to prove beyond my own enjoyment driving the car. Anything I post in the thread is just my enthusiasm for having fun with this thing.
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Old 04-17-2015, 06:46 PM   #3737
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Edit: Dur I should have read ALL the responses. So the answer to my ninja-edited question is maybe.

Although would it make a difference that mine was 5th gear with 4.10 rear end and his was 4th gear but with 3.63 rear end?
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Old 04-17-2015, 07:08 PM   #3738
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^^ good point. There is about a 12mph difference at 6800rpm between 4th (3.6 gears) and 5th (4.1 gears) though. That IS something.
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Old 04-20-2015, 01:37 AM   #3739
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Quote:
Originally Posted by Chiburbian View Post
One thing that I always look for is what RPM does it hit target torque... And I am surprised that it took all the way until 4,200rpm to hit 200lb/ft. I know it could be any number of things, but I am just surprised being that so many people consider the turbo to feel so strong so early.
+1. I seriously doubt that dyno chart is accurate, because if it is, that's the worst performing EFR I've ever seen. There's no way dynoing in 4th vs 5th will fix it, either. I wish you were closer to a Dynojet or a Dynapack.
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Old 04-20-2015, 01:47 AM   #3740
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Hmmm I'm interested in what a different Dyno would report then. It certainly doesn't feel like it spools that late/delivers power that slowly.

What are the right questions to ask the tuner to find the answers we are obviously lacking?

Could my EBC to EWG routing have affected the spool?

If it was truly that slow on power you'd think I'd be able to feel it compared to my 2860rs turbo.
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