New BW EFR Turbo Thread

Fastest 2011 Moscow streeet Evo by Zver:
Kelford 280
Cosvorth springs
Mahle pistons
Manley rods
Exhaust manifold Full Race
BW EFR 7670
Exhaust - custom
Intake - custom
Fuel - custom
Some videos:
http://www.youtube.com/watch?v=cC9aArHVj2M
http://www.youtube.com/watch?v=sJ02J...layer_embedded
That is a very nice pump gas result.
From the torque curve I'd say it is very near full boost at about 4200 - 4300 rpm. This is a 2.0 liter.
The leetEVO car, which was (and is) a 2.3 liter was making ~30 psi at about 4100 rpm.
Then leetEVO got his engine rebuilt by Buschur and got similar results on that dyno to confirm!
The AVC-R log from Raj looks like he was coming into the run from a trailing throttle, and if my guesses about the log are right, the full boost was at about 4100 rpm. This was on the road in 3rd gear. Car is a 2.0 liter.
I think we are getting the non-pre-boosted picture here, about spool of the 7670!
From the torque curve I'd say it is very near full boost at about 4200 - 4300 rpm. This is a 2.0 liter.
The leetEVO car, which was (and is) a 2.3 liter was making ~30 psi at about 4100 rpm.
Then leetEVO got his engine rebuilt by Buschur and got similar results on that dyno to confirm!
The AVC-R log from Raj looks like he was coming into the run from a trailing throttle, and if my guesses about the log are right, the full boost was at about 4100 rpm. This was on the road in 3rd gear. Car is a 2.0 liter.
I think we are getting the non-pre-boosted picture here, about spool of the 7670!

Fastest 2011 Moscow streeet Evo by Zver:
Kelford 280
Cosvorth springs
Mahle pistons
Manley rods
Exhaust manifold Full Race
BW EFR 7670
Exhaust - custom
Intake - custom
Fuel - custom
Some videos:
http://www.youtube.com/watch?v=cC9aArHVj2M
http://www.youtube.com/watch?v=sJ02J...layer_embedded
The car in the pict has a single scroll kit on it, is this the kit you used.
Mark
You are doing a “Graph Display Replay” which is capable of displaying up to 4 parameters at a time. You are displaying “Bst” and “Rev”.
I think your BOOST setting range is -760mmHg to +3.0kg/cm2.
Your RPM setting range would be 0 to 8000 rpm.
(see pic below from pg 35 in the manual).
These settings would fit with the number of tick marks shown on the vertical scale and with the capabilities of your car, and with the data logged. The rpm would be as I posted in my pic in post #1298. The boost would use the same 5 tick marks on the vertical scale like this: -1, 0, +1, +2, +3 (atmospheres roughly).
The horizontal scale, I don’t know, I’m a little stuck there on how many seconds per tick mark. The replay is much faster than real-time. The manual says you can record up to 30 seconds of data when recording 2 channels like you are. But it seems like the video cuts off before the replay is done, so I can’t time the replay. If there was a way to replay the data at real-time instead of sped up we could figure it out, or if the video went all the way to the end of the replay we could figure it if we knew the real time recorded was 30 seconds.
Anyway, some other type of log would be cool, if you can do it. Or if we can figure out the AVC-R a little better, that could be ok too. Thanks!
I do like the way that pull was done, coming into it with neutral or trailing throttle (looks like trailing) at about 2000 rpm. Starting from about 3000 rpm would be good too.
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Last edited by Talonboost; Dec 31, 2011 at 05:00 PM.
Aw I see it. The first 1.5 seconds of the video shows data going by in real-time, not sped up. This is before the replay starts. In that 1.5 seconds the data moves about 3/4 of a tick mark to the left. So that comes out to, 1 tick mark is 2.0 seconds. Your pull to red line must have taken about 6 seconds then. Mighty quick considering the first part of the pull is practically lugging the engine!
As for dyno comparisons...I'm not even going down that road beyond one quick statement. I've seen results from the same car on 3 dynos types in the same day and it solidified my thoughts that this whole "XXX dyno reads lower then YYY dyno" is nothing but shop marketing BS. Yeah they read differently, but not consistently differently.
mark - this moscow car uses our Big Runner Non-AC twinscroll evolution turbo manifold definitely a twinscroll EFR setup




