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Old 02-18-2019, 03:50 PM   #2751
brecks
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Quote:
Originally Posted by PDXREALTOR View Post
I have material here that you can use to make a custom 2.5 - 3" intake adapter for your 7163. It slips right on the inlet cover. I'll send you one for the price of shipping. All they are is skateboard wheels, and you'll hog out the center with a forstner bit.

They have a durometer reading high enough to handle the heat. I can take a pic of the one that's sitting on my 7163 right now, after a lot of use.

Another key, IMO, is the intake filter. Make sure you get a filter with a 6" opening and put it on a velocity stack style intake fitting that then connects to a 3" pipe.

You can also see some of my best graphs a few pages back. I got better spool and redline RPM by ditching the BW wastegate can, and going with a high spring turbosmart one port.
I have the turbosmart with high spring pressure, but itís a dual port. Iíd definitely be interested in seeing the custom 3Ē setup. Iíll send you a PM.
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Old 02-18-2019, 04:09 PM   #2752
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If I copy your VE and put in for my altitude, I am way out of range of the compressor at 7000 RPMs at 27 psi

The only one that comes close to being in the efficiency ratio is an 8374, but it says it will surge at low throttle.
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Old 02-18-2019, 04:13 PM   #2753
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Originally Posted by Waddlz View Post
Yes. I did not realize that with the V-band there is no way to upgrade to a 7670 or 8374. I'd need an entire new kit.
Even without vband the 7163 is a t-25 and the b2 frames are t3.... I just went through this as I really wanted to keep the 7163, but rotated.
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Old 02-18-2019, 04:50 PM   #2754
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I downloaded a spreadsheet to calculate VE, and I "think" its correct.

based on these numbers, I'm well in the efficiency range of this turbo at 24 psi.

I need to find a log that i hit 27, as this one was on E68 and held ~25 to redline
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Old 02-18-2019, 04:52 PM   #2755
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My same matchbot show on the map at redline on a 7670. I'm far from knowing much of anything re: compressor maps so, I may be someplace I shouldn't be earlier on the map.
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Old 02-18-2019, 04:53 PM   #2756
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Last edited by Waddlz; 02-18-2019 at 05:28 PM. Reason: wrong one
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Old 02-18-2019, 05:27 PM   #2757
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Old 02-18-2019, 06:16 PM   #2758
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You have to move the dots to your housing.
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Old 02-18-2019, 08:21 PM   #2759
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Any suggestions for a mild cam with a stock location 7163? Built bottom end, stock B25 heads, FMIC, E85. Thinking along the lines of a GSC S1

Last edited by brecks; 02-18-2019 at 11:32 PM.
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Old 02-19-2019, 04:15 PM   #2760
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Originally Posted by PDXREALTOR View Post
Here's my attempt at matchbot. The only thing I'm sure about is the data I entered came straight from a log. Other info may be off, most of it I left as is unless I had the data.

I'm also hybrid MBC so note the WGDC data may be wacky. I forget the details on what I did with those in matchbot. I just remember having to play with them.

Matchbot
I find the VE increasing at redline to be odd. Also, did you actually log exhaust back pressure, intercooler pressure drop, and air filter drop? Or were they just guesses? they all affect your mass flow rate.

And honestly, your pt 6 isn't that far off the map.

Have you plotted the power output from Matchbot versus actual dyno data you have, to check the shape of the projected curve?

I'd also ditch the 2500 RPM in lieu of a 3500 RPM where your psi and torque values are climbing hard.
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Old 02-19-2019, 04:27 PM   #2761
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Originally Posted by Homemade WRX View Post
I find the VE increasing at redline to be odd. Also, did you actually log exhaust back pressure, intercooler pressure drop, and air filter drop? Or were they just guesses? they all affect your mass flow rate.

And honestly, your pt 6 isn't that far off the map.

Have you plotted the power output from Matchbot versus actual dyno data you have, to check the shape of the projected curve?

I'd also ditch the 2500 RPM in lieu of a 3500 RPM where your psi and torque values are climbing hard.
Thx. I didn't change anything but the boxes I could input actual log data into. I'll play with this when I'm not mobile. My ve map is *dialed* and, I'm at or above 100 in alot of high map/rpm cells. *shrug*

I have compared numbers to the virtual Dyno log I used, torque is pretty close except the last matchbot cell, power.... Not so close. I'll throw them both up tonight.
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Old Yesterday, 09:00 AM   #2762
Onyanineza
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Just looking at all those engines makes my heart warm
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Old Yesterday, 12:55 PM   #2763
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Quote:
Originally Posted by brecks View Post
Any suggestions for a mild cam with a stock location 7163? Built bottom end, stock B25 heads, FMIC, E85. Thinking along the lines of a GSC S1
Kelford Rally cams.
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Old Yesterday, 01:39 PM   #2764
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Kelford Rally cams.
Thanks! Those the 264/260? Any particular reason?
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Old Yesterday, 05:34 PM   #2765
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If you compare the profile in depth it's got more lift with less duration than the S1's which will match that turbo and stock port heads better.
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Old Yesterday, 06:59 PM   #2766
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If you compare the profile in depth it's got more lift with less duration than the S1's which will match that turbo and stock port heads better.
The only kelford rally cams that I found are dual AVCS. For single AVCS the R-199-B are the closest match, 264/260 I: 10.9mm E: 10.45mm Compared to the old S1s (not the new billets which are 268) 266/266 I: 10.8mm E: 10.4mm

Don't want to stray too far from Borg Warner talk, drop me a PM

Last edited by brecks; Yesterday at 07:06 PM.
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Old Yesterday, 09:15 PM   #2767
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Meh, there are like 12 of us on here anyway and I'm pretty sure we all like engine talk.
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Old Yesterday, 09:27 PM   #2768
kellygnsd
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You shouldn't have to enter anything in Match-Bot about your wastegate situation. If you enter all other data fairly accurately it will calculate the expected WG % at each of your 6 data points. My Match-Bot for the 7670 was pretty accurate on my 2.35L. I was way off the map past 7200 rpm @ 25 psi. Coincidentally even on my race-gas tune I didn't gain much trying to run 30 psi to redline so we tapered boost from 35 psi to 25 psi at redline (8200rpm). The 8374 shows to be a better match and since I would like to see what 30 psi does on E85, I'm upgrading to the 8374 soon.

Quote:
Originally Posted by PDXREALTOR View Post
Here's my attempt at matchbot. The only thing I'm sure about is the data I entered came straight from a log. Other info may be off, most of it I left as is unless I had the data.

I'm also hybrid MBC so note the WGDC data may be wacky. I forget the details on what I did with those in matchbot. I just remember having to play with them.

Matchbot
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Old Yesterday, 10:16 PM   #2769
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I'm upgrading to the 8374 soon.
That'll be the jam! Already own it or can you still look at the 8474?


Last edited by Homemade WRX; Yesterday at 10:28 PM.
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Old Today, 12:49 AM   #2770
kellygnsd
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Sold. Thats a nice wide map. Are they on the market already?

Quote:
Originally Posted by Homemade WRX View Post
That'll be the jam! Already own it or can you still look at the 8474?

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Old Today, 02:47 AM   #2771
brecks
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Originally Posted by Homemade WRX View Post
Meh, there are like 12 of us on here anyway and I'm pretty sure we all like engine talk.
In that case, what do you think? Slightly more lift or slightly more intake duration and a good bit more exhaust duration? Iíve always been under the impression that for turbo cars, more lift equals quicker spool and more duration means more horsepower up top
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