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Old 03-25-2016, 12:52 AM   #141
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Do you mean VICS (NB1) Bob? Very similar to the VTCS (NB2) but without the butterflies.
After playing with multiple VICS solenoid switching points, I found more torque below 5000 with a VICS than with a squaretop on our PTE engines. I don't recall the exact rpm switch points but it was something like close at idle, open around 2200, close at 6800 or something like that. Simple enough to tune on a dyno.
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Old 03-25-2016, 01:48 AM   #142
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I'd love to see a VICS comparison added to the chart.

I counseled someone on how to tune the VICS -- basically a dyno pull open and a dyno pull closed -- look for the crossover points. My switchover points ended up similar to OEM, but a friend of mine that did it ended up with a much lower switchover (in the 3K range IIRC). He got a super-flat and fat torque curve that fills me with jealousy. Neither of us saw the 2nd switchover point, but we may not have revved high enough.
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Old 03-25-2016, 02:51 AM   #143
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Quote:
Originally Posted by emilio700 View Post
Do you mean VICS (NB1) Bob? Very similar to the VTCS (NB2) but without the butterflies.
After playing with multiple VICS solenoid switching points, I found more torque below 5000 with a VICS than with a squaretop on our PTE engines. I don't recall the exact rpm switch points but it was something like close at idle, open around 2200, close at 6800 or something like that. Simple enough to tune on a dyno.
yea. I actually think the way the runners on the VICS NB1 manifold sort of go up into the upper half they are longer runners by an inch or so than the other two. The square top is more like a ported out VTCS with larger diameter runners and no butterflies. The flat top needs cams or something to take much advantage of it. The NB1 manifold is closer to what went on the protege/escort GT but it had even longer runners, also made about 18ft-lbs through the mid range more than a NA 1.8 miata with the same head/cams and pistons factory spec.
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Old 03-27-2016, 01:05 PM   #144
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bbundy I think you mean VICS?

Edit: whoops, missed a page.
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Old 04-04-2016, 07:02 PM   #145
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Originally Posted by curly View Post
I'd argue this.

Morse: VTCS with butterflys removed, junk yard VVT, stock NB2 header, MSpro, exhaust shop special from header back, ~10" intake to headlight area.

Sauer: VICS, rebuilt VVT with shaved head, Ebay RB copy, Rev MS3, enthuza test pipe, RB mid pipe and muffler, K&N intake.

The junk yard motor sadly made more power, I really need to get back to the dyno with the Sauer engine and see if some VVT tuning will result in similar gains down low. But Morse has 4 extra hp/ftlbs from 4k to 6250, then by 7000rpm, Sauer suddenly has 9 extra hp and 6 more ft/lbs.

I've always attributed this to his VICS manifold, no?
Sorry I am so late to the party, but I found 14hp and 10ft @ 7,000 switching from a VTCS to VICS manifold on my VVT track car. Here is my dyno when I switched manifolds. Be aware that the TQ and HP are scaled differently.

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VTCS manifold unpleasantness-80-asnklrn_39c71d159a272ad985da6cb6d379341c7d7eb6a3.png  

Last edited by MX5RACER; 04-05-2016 at 10:50 AM.
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Old 04-04-2016, 07:18 PM   #146
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Originally Posted by emilio700 View Post
If you can wait about 5 months, we will have a better option.
Have you got a manifold in mind for our BP05 brethren in addition to 4W/VVTs?
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Old 04-04-2016, 07:46 PM   #147
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doubt he'll be wasting time on those
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Old 04-04-2016, 07:47 PM   #148
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When will the 1.6 manifold be released?






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Old 04-04-2016, 07:50 PM   #149
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he wants to save the big power stuff for later and test on the inferior bp6d first to keep all the torque down
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Old 04-04-2016, 07:50 PM   #150
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Makes sense. We need a transmission solution before we can do these tests on a B6
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Old 04-04-2016, 07:51 PM   #151
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was just bout to post that. darn it
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Old 05-09-2016, 01:37 PM   #152
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If i want to switch to VICS, do i need to just buy the top part of the manifold?
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Old 05-09-2016, 01:39 PM   #153
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Quote:
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If i want to switch to VICS, do i need to just buy the top part of the manifold?
You need the whole thing
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Old 05-09-2016, 04:57 PM   #154
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Originally Posted by MX5RACER View Post
Sorry I am so late to the party, but I found 14hp and 10ft @ 7,000 switching from a VTCS to VICS manifold on my VVT track car. Here is my dyno when I switched manifolds. Be aware that the TQ and HP are scaled differently.
Was that with the VICS switching modes at some RPM (e.g. 5600 RPM)?
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Old 05-12-2016, 10:31 AM   #155
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Originally Posted by JasonC SBB View Post
Was that with the VICS switching modes at some RPM (e.g. 5600 RPM)?
I would have to dig through my old MSQ files to be 100% sure, but I remember it being 5400 rpms.
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Old 05-19-2016, 02:00 AM   #156
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Damn, read all 8 pages in hopes to finally see the VICS results.

Curly, let's get my car back on the dyno, I have a feeling you might be able to squeeze a bit more out of my VICS/VVT.
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Old 08-29-2016, 09:44 PM   #157
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8/24/16 came and went . . . .

Emilio, stop slacking please.
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Old 08-29-2016, 10:00 PM   #158
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Alas no progress on the manifold. I have John backed up with other stuff so the printer is sitting idle for a while. When Dan Howard starts in about two weeks (sales mgr), it should free me up to spend more time on R&D projects.

slacking = riding my bike
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Old 10-08-2016, 11:06 AM   #159
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Weather is cooling off, garage is becoming usable and I'm looking at gathering some parts to polish off the drivetrain. Intake manifold is one of them, but I'm guessing that this won't be available in the next 3-4 months.... right?
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Old 10-08-2016, 07:22 PM   #160
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Quote:
Originally Posted by Ziggo View Post


Weather is cooling off, garage is becoming usable and I'm looking at gathering some parts to polish off the drivetrain. Intake manifold is one of them, but I'm guessing that this won't be available in the next 3-4 months.... right?
Probably more like a year. It is an undefined, lower priority R&D project with no ETA. That said it is the primary reason we purchased our very large 3D printer so it will happen, I just do not know when.
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