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Old 09-18-2012, 11:19 PM   #251
Paul
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Old 09-18-2012, 11:24 PM   #252
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Ranges from 450-515hp

I am just using base weights from the program of 3351 or whatever. I am guessing that the OCC box is for occupant weights? I never added anything there.

I will try and do some pulls in the exact same place and see if that makes a difference in what I am seeing.
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Old 09-19-2012, 12:04 AM   #253
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You need to open the logs and remove any non wot data from the pulls then save the log. Then put them in vd. Yes occ is occupant weight
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Old 09-19-2012, 06:07 AM   #254
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Quote:
Originally Posted by Phatron View Post
You need to open the logs and remove any non wot data from the pulls then save the log. Then put them in vd. Yes occ is occupant weight
He doesn't have to that, virtual dyno will filter any non WOT data. But if he has a log with WOT data of two or more different gears he will have to clean the log.

Just do a pull from 2000rpm to redline in 4th gear, in your case. Only log one pull at the time.

Last edited by juanmedina; 09-19-2012 at 07:26 AM.
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Old 09-19-2012, 08:15 AM   #255
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Yeah I knew that much lol. I wasn't cleaning up the non wot data tho
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Old 09-19-2012, 11:39 PM   #256
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Might be reading alittle high IMO but here is a virtual dyno plot of a 4th gear pull around 26.5psi

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Old 09-19-2012, 11:41 PM   #257
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hopefully the graph of an actual dyno looks the same, it's just so awesome, the power keeps going up and up while torque stays!
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Old 09-19-2012, 11:44 PM   #258
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Yeah whether a real dyno does or not I don't care much for dyno numbers. A trip to the track will tell me everything I want to know. I would love to trap high 120s or possibly touch 130mph.

Planning on turning the boost up still but going slow letting Junior take a look at each round of logs.
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Old 09-20-2012, 09:51 AM   #259
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I ****ing love this tune! Great job Jr!!!!!!

Carmi
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Old 09-20-2012, 10:35 AM   #260
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What's boost taper?! That's impressive
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Old 09-20-2012, 10:52 AM   #261
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No taper at this boost level. Hopefully it will continue to hold well as we turn it up. I am new to big turbo subarus but it seems to hit 25 psi instantly and then slowly creeps up to 26.5-27psi is that normal?

Another thing I have never had a problem making quick shifts which can be seen in any of my old vf videos but now on the big turbo it really falls out of boost and shifts are jerky no matter how fast I make a gear change. Last night messing around on the 2-3 shift I revved it out higher to around 7500rpm and noticed a much smoother/quicker change. Is that something you guys do who are running bigger turbos to help speed transitions between gears?
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Old 09-20-2012, 11:56 AM   #262
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Quote:
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No taper at this boost level. Hopefully it will continue to hold well as we turn it up. I am new to big turbo subarus but it seems to hit 25 psi instantly and then slowly creeps up to 26.5-27psi is that normal?

Another thing I have never had a problem making quick shifts which can be seen in any of my old vf videos but now on the big turbo it really falls out of boost and shifts are jerky no matter how fast I make a gear change. Last night messing around on the 2-3 shift I revved it out higher to around 7500rpm and noticed a much smoother/quicker change. Is that something you guys do who are running bigger turbos to help speed transitions between gears?
FFS or rev higher
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Old 09-20-2012, 12:33 PM   #263
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I have read that FFS is pretty hard on stock engines?
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Old 09-20-2012, 12:35 PM   #264
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I was making funnies. The lack of boost taper is phenomenal
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Old 09-20-2012, 12:39 PM   #265
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Quote:
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I was making funnies. The lack of boost taper is phenomenal
Ah now re reading it I gotcha ha
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Old 09-20-2012, 12:42 PM   #266
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Quote:
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I have read that FFS is pretty hard on stock engines?
It is...
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Old 09-21-2012, 07:08 PM   #267
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Might try and avoid that then...definitely will want launch control for the track however.
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Old 09-21-2012, 09:30 PM   #268
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Awesome!!! The way that thing gains boost is amazing. Me wants one!!!
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Old 09-22-2012, 12:13 AM   #269
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Turn it up! Same turbo, stock sleeves, E85.

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Old 09-22-2012, 01:22 AM   #270
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Needs more RPMS ^^, then maybe, just maybe we will get some taper
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Old 09-22-2012, 11:25 AM   #271
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So now that I am running speed density I have a dumb question...so with a MAF I know that when you have a surging idle or idle issues a lot of times has to do with a vacuum/boost leak somewhere.

Is that the same with SD?
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Old 09-22-2012, 12:34 PM   #272
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Not really at idle since the manifold pressure is so low.
If one of the cells in the VE table is off and the car creeps into it, it can cause a really high af correction, which will change the idle and the af correction, and the car can get stuck in a loop where it keeps going through those same cells over and over. Like idle drop, lean, idle rise, rich, idle drop.....

It can also be from too much timing in the idle tables or too much of a difference in timing between the the idle tables and primary ignition table.
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Old 09-22-2012, 01:07 PM   #273
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Ok sounds good, wasn't sure if I should spend time looking for a leak or if it something else. Thanks.
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Old 09-26-2012, 11:07 AM   #274
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Little update. Just ordered a Walbro 450lph pump so I should be good in the fuel department for what I want to do for a while.
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Old 09-28-2012, 09:01 PM   #275
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Walbro 450lph pump is installed. Went out and made a few pulls..AFRs were at 12.0-12.2 and now in the mid 10s...any thoughts? Was the old pump just maxxed out or am I over running the FPR? What do you think?
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