Something's wrong.
Apr 2, 2004, 06:21 AM
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Something's wrong.
I'm not sure why my car doesn't want to make boost. I took out the Profec B and SAFC to install the UTEC. I was running 21psi with the profec and the car was making decent power. I installed my UTEC and now it's slow as hell. It is not the UTEC's fault though. For some reason, I am only able to make 13psi. I don't get it.
Here is a little background. I previously used the Profec for a boost guage. It worked pretty well since it has some nice peak functions. I went and bought an autometer boost guage to keep in the glove box for tuning since I want to have no guages visible in the car at all. I want it to look 100% stock. I also wanted to try to avoid the ABC for a cleaner install. I figured that 19-20psi to redline is plenty with that other additional features on the UTEC.
I removed the Profec and SAFC. The Profec was tapped for the guage at the fuel pressure line. I'd rather tap somewhere else, but it was working fine for the last 6 months. I tapped the autometer boost guage in the same spot and it only showed 12psi. No wonder the car is so slow. I went home and added the ABC out of curiousity since the map shows 100% BCS duty cycle at 100% TPS. I installed the ABC and I ended up cranking it wide open. Eight full turns and i am still only running 13psi. I don't get it. I have the cacuum lines exactly how they are diagramed on the underside of the hood and in the UTEC manual. It makes no sense to me. It was fine with the Profec, so I know nothing is mechanically wrong with the turbo. I haven't taken anything apart, so there should be no additional boost leaks now. I just don't get it.
Here is a log of a modified map. Look at my MAF signal. I see other people are seeing around 1700hz or more. That's what I was running before. Now I am lucky to see 1400hz.
Any suggestions?
Here is a little background. I previously used the Profec for a boost guage. It worked pretty well since it has some nice peak functions. I went and bought an autometer boost guage to keep in the glove box for tuning since I want to have no guages visible in the car at all. I want it to look 100% stock. I also wanted to try to avoid the ABC for a cleaner install. I figured that 19-20psi to redline is plenty with that other additional features on the UTEC.
I removed the Profec and SAFC. The Profec was tapped for the guage at the fuel pressure line. I'd rather tap somewhere else, but it was working fine for the last 6 months. I tapped the autometer boost guage in the same spot and it only showed 12psi. No wonder the car is so slow. I went home and added the ABC out of curiousity since the map shows 100% BCS duty cycle at 100% TPS. I installed the ABC and I ended up cranking it wide open. Eight full turns and i am still only running 13psi. I don't get it. I have the cacuum lines exactly how they are diagramed on the underside of the hood and in the UTEC manual. It makes no sense to me. It was fine with the Profec, so I know nothing is mechanically wrong with the turbo. I haven't taken anything apart, so there should be no additional boost leaks now. I just don't get it.
Here is a log of a modified map. Look at my MAF signal. I see other people are seeing around 1700hz or more. That's what I was running before. Now I am lucky to see 1400hz.
Code:
, , , ,Load,Knock, , , Mod, Mod, , Mod
RPM, MAP, MAF,TPS,Site,Count, Ign#1, Inj#1, Ign, Fuel,Boost, MAF
, psia, Hz, % , , , deg , duty , deg, % ,(OL) , Hz
3267,+27.4, 62, 1, 00, 00, +22.7, 5.0,ECU. , +0.0,ECU. , 61
3264,+27.4, 62, 1, 00, 00, +22.5, 5.0,ECU. , +0.0,ECU. , 62
3236,+27.4, 59, 1, 00, 00, +22.5, 5.0,ECU. , +0.0,ECU. , 61
3242,+27.4, 61, 1, 00, 00, +22.6, 5.0,ECU. , +0.0,ECU. , 58
3287,+27.4, 336, 28, 10, 00, +31.6, 10.0,ECU. , +0.0,ECU. , 324
3770,+27.4, 46, 1, 00, 00, +34.1, 4.0,ECU. , +0.0,ECU. , 45
3557,+27.2, 285, 17, 00, 00, +38.8, 6.0,ECU. , +0.0,ECU. , 363
3944,+27.2, 80, 1, 00, 00, +28.7, 7.0,ECU. , +0.0,ECU. , 35
3691,+27.2, 358, 18, 00, 00, +28.0, 10.0,ECU. , +0.0,ECU. , 435
4246,+27.2, 48, 1, 00, 00, +38.0, 10.0,ECU. , +0.0,ECU. , 81
4585,+27.0, 389, 27, 10, 00, +29.9, 14.0,ECU. , +0.0,ECU. , 377
4403,+27.0, 437, 30, 10, 00, +28.1, 18.0,ECU. , +0.0,ECU. , 452
4559,+27.2, 549, 33, 10, 00, +26.1, 23.0,ECU. , +0.0,ECU. , 576
4694,+27.0, 874, 50, 10, 00, +15.7, 35.0,ECU. , +0.0,ECU. , 827
4866,+27.2,1106, 87, 10, 00, +8.8, 52.0,ECU. , +0.0,100.00, 988
5058,+27.2,1068,100, 30, 00, +8.8, 54.0,ECU. , -1.6,100.00,1162
5307,+27.4,1101,100, 40, 00, +12.3, 56.0,ECU. , -3.9,100.00,1024
5537,+27.2,1184,100, 50, 00, +13.4, 55.0,ECU. , -7.1,100.00,1136
5777,+27.2,1222,100, 50, 00, +15.4, 58.0,ECU. , -7.5,100.00,1041
5973,+27.2,1170,100, 50, 00, +16.2, 61.0,ECU. , -5.5,100.00,1146
6195,+27.2,1340,100, 70, 00, +18.2, 61.0,ECU. ,-11.9,100.00,1152
6410,+27.2,1201,100, 60, 00, +19.5, 63.0,ECU. , -8.5,100.00,1157
6640,+27.2,1253,100, 60, 00, +22.4, 64.0,ECU. , -9.1,100.00,1219
6816,+27.2,1385,100, 60, 00, +23.4, 64.0,ECU. , -9.5,100.00,1237
7002,+27.2,1272,100, 60, 00, +25.3, 65.0,ECU. , -9.5,100.00,1168
7199,+27.2,1355,100, 70, 00, +27.7, 63.0,ECU. ,-13.5,100.00,1201
6600,+27.2, 156, 2, 00, 00, +38.6, 7.0,ECU. , +0.0,ECU. , 393
6242,+27.2, 851, 63, 30, 00, +31.4, 34.0,ECU. , -1.0, 83.00, 992
5120,+27.2,1256,100, 30, 00, +11.1, 55.0,ECU. , -1.2,100.00,1141
5402,+27.2,1187,100, 20, 00, +9.9, 63.0,ECU. , -0.5,100.00,1207
5583,+27.2,1089,100, 40, 00, +12.3, 60.0,ECU. , -4.9,100.00,1116
5668,+27.2,1243,100, 50, 00, +14.2, 57.0,ECU. , -7.7,100.00,1213
5797,+27.0,1262,100, 60, 00, +15.2, 59.0,ECU. , -9.7,100.00,1054
5889,+27.0,1298,100, 50, 00, +15.6, 61.0,ECU. , -6.5,100.00,1173
6016,+27.2,1237,100, 60, 00, +16.2, 62.0,ECU. , -8.5,100.00,1250
6127,+27.2,1305,100, 60, 00, +17.3, 62.0,ECU. , -8.5,100.00,1054
6242,+27.4,1416,100, 60, 00, +18.3, 63.0,ECU. , -8.5,100.00,1162
6349,+27.4,1308,100, 80, 00, +20.4, 60.0,ECU. ,-12.0,100.00,1072
6459,+27.2,1326,100, 70, 00, +21.5, 61.0,ECU. ,-12.4,100.00,1136
6561,+27.2,1237,100, 60, 00, +21.5, 63.0,ECU. , -8.6,100.00,1201
6680,+27.2,1204,100, 70, 00, +23.3, 60.0,ECU. ,-13.1,100.00,1184
6775,+27.2,1373,100, 70, 00, +24.6, 61.0,ECU. ,-13.5,100.00,1106
6872,+27.2,1312,100, 70, 00, +24.5, 61.0,ECU. ,-13.5,100.00,1190
6973,+27.2,1269,100, 80, 00, +25.4, 62.0,ECU. ,-13.4,100.00,1269
7047,+27.2,1298,100, 70, 00, +25.9, 63.0,ECU. ,-13.5,100.00,1116
7168,+27.0,1416,100, 60, 00, +25.9, 65.0,ECU. , -9.5,100.00,1275
7246,+27.2,1432,100, 70, 00, +27.0, 63.0,ECU. ,-13.5,100.00,1262
7342,+27.2,1362,100, 70, 00, +27.2, 63.0,ECU. ,-13.5,100.00,1157
7423,+27.2,1432,100, 70, 00, +27.6, 63.0,ECU. ,-13.5,100.00,1243
7407,+27.2, 92, 27, 60, 00, +36.9, 7.0,ECU. , -9.5,ECU. , 64
6830,+27.2, 174, 1, 00, 00, +38.6, 24.0,ECU. , +0.0,ECU. , 169
6138,+27.2,1077,100, 20, 00, +26.8, 43.0,ECU. , -0.5,100.00,1020
5402,+27.2,1275,100, 10, 00, +10.1, 63.0,ECU. , +0.0,100.00,1336
5611,+27.2,1173,100, 20, 00, +12.2, 63.0,ECU. , -0.5,100.00,1225
5640,+27.2,1179,100, 40, 00, +13.3, 60.0,ECU. , -5.1,100.00,1033
5717,+27.2,1269,100, 50, 00, +14.2, 58.0,ECU. , -7.7,100.00,1121
5747,+27.2,1216,100, 50, 00, +13.5, 60.0,ECU. , -7.8,100.00, 988
5797,+27.2,1149,100, 60, 00, +15.4, 58.0,ECU. , -9.7,100.00,1302
5858,+27.2,1259,100, 60, 00, +15.4, 59.0,ECU. , -9.6,100.00,1213
5910,+27.2,1262,100, 60, 00, +15.5, 60.0,ECU. , -9.1,100.00,1179
5973,+27.2,1219,100, 60, 00, +16.3, 61.0,ECU. , -8.8,100.00,1179
6038,+27.0,1259,100, 60, 00, +16.3, 61.0,ECU. , -8.5,100.00,1116
6116,+27.0,1288,100, 60, 00, +17.4, 63.0,ECU. , -8.5,100.00,1201
6127,+27.0,1190,100, 60, 00, +17.3, 63.0,ECU. , -8.5,100.00,1269
6172,+27.0,1219,100, 60, 00, +18.4, 64.0,ECU. , -8.5,100.00,1231
6253,+27.2,1259,100, 60, 00, +18.4, 64.0,ECU. , -8.5,100.00,1152
6277,+27.2,1176,100, 60, 00, +18.4, 63.0,ECU. , -8.5,100.00,1269
6325,+27.2,1210,100, 60, 00, +19.5, 64.0,ECU. , -8.5,100.00,1141
6410,+27.2,1373,100, 60, 00, +19.4, 65.0,ECU. , -8.5,100.00,1162
6435,+27.0,1216,100, 60, 00, +20.5, 64.0,ECU. , -8.5,100.00,1146
6510,+27.2,1207,100, 60, 00, +21.7, 64.0,ECU. , -9.4,100.00,1152
6535,+27.2,1432,100, 70, 00, +22.6, 61.0,ECU. ,-12.7,100.00,1162
6613,+27.2,1282,100, 60, 00, +22.1, 63.0,ECU. , -8.9,100.00,1225
6666,+27.2,1381,100, 60, 00, +22.3, 65.0,ECU. , -9.1,100.00,1184
6680,+27.4,1381,100, 60, 00, +22.3, 66.0,ECU. , -9.2,100.00,1141
6747,+27.2,1333,100, 60, 00, +23.2, 65.0,ECU. , -9.5,100.00,1250
6788,+27.2,1291,100, 70, 00, +24.5, 62.0,ECU. ,-13.5,100.00,1256
6816,+27.2,1474,100, 70, 00, +23.8, 62.0,ECU. ,-13.5,100.00,1207
Apr 2, 2004, 07:07 AM
#2
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did you happen to remove the factory vaccum lines to install your profec boost controller?
Jermaine@turboxs.com
www.turboxs.com
Jermaine@turboxs.com
www.turboxs.com
Apr 2, 2004, 07:17 AM
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Originally posted by Imprezd
did you happen to remove the factory vaccum lines to install your profec boost controller?
Jermaine@turboxs.com
www.turboxs.com
did you happen to remove the factory vaccum lines to install your profec boost controller?
Jermaine@turboxs.com
www.turboxs.com
In the EVO there are two restrictor pills. The line off the compressor cover MUST have one of them and the second one is in the line running to the factory boost control solenoid. The second one can be removed to allow for higher boost pressure, but the removal of the first one will result in boost pressure being limited to right around your waste-gate spring pressure.
-Nathan
www.turboxs.com
Apr 2, 2004, 07:35 AM
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Originally posted by instigator
I had them removed, but they are back to a stock configuration now.
I had them removed, but they are back to a stock configuration now.
Take a look and double check that you got the restrictor in the line coming from the compressor cover.
If it is there, then go into your UTEC boost map and at the low throttle positions type in a duty cycle of 75% from 500rpm to 2000rpms save the map and exit to the UTEC home screen.
Then pop the hood and stick your ear by the factory boost control solenoid. If it is not clicking, it's dead and that will be the source of your problem.
-Nathan
www.turboxs.com
Apr 2, 2004, 07:36 AM
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That makes sense. I *think* I am using the factory lines except for the 4mm line you supplied. The restrictor is between the compressor and the "T"?
Originally posted by nmyeti
That was my guess. There is a restrictor that has to be in the right place or the boost control system isn't going to work well.
In the EVO there are two restrictor pills. The line off the compressor cover MUST have one of them and the second one is in the line running to the factory boost control solenoid. The second one can be removed to allow for higher boost pressure, but the removal of the first one will result in boost pressure being limited to right around your waste-gate spring pressure.
-Nathan
www.turboxs.com
That was my guess. There is a restrictor that has to be in the right place or the boost control system isn't going to work well.
In the EVO there are two restrictor pills. The line off the compressor cover MUST have one of them and the second one is in the line running to the factory boost control solenoid. The second one can be removed to allow for higher boost pressure, but the removal of the first one will result in boost pressure being limited to right around your waste-gate spring pressure.
-Nathan
www.turboxs.com
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Apr 4, 2004, 09:52 AM
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It looks like the restrictor was the issue. Thanks again guys! I couldn't find the restrictor from the shorter compressor hose, so I used the one fro the longer hose. I am not able to make 19pis without the ABC, but it can at least be turned up to get back there. I am guessing that the original restrictor might be smaller than the one I am using. I'll have to go order the vacuum hose kit from Mitsu to see if that makes it any better.
Apr 5, 2004, 02:33 PM
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I am a little slow on the Utec lingo, but can or cant we use a MBC with the Utec. I am currently using dynoflash as my method of tuning, but my upgrade path in the next 2 months is becoming rapid and I def dont want to add a afr/afc. I am pretty knowledgeable with these but i am now looking to upgrade to the Utec. From reading around I have heard nothing but good things from this unit. I am getting pretty excited with this unit I am just afraid that I am going to need someone to help me with the system at first to become comfortable with the Utec.
Apr 5, 2004, 02:40 PM
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I don't see why you couldn't use a EBC/MBC. I would just set the boost map on the UTEC to 0 all across the load ranges.
I was alittle frustrated on Saturday morning because it wasn't running as well as before, but I had only had it in the car for a few hours when I took it to autocross. After some time with it, I am already getting it running pretty well. After some dyno time, it should be set up pretty well with a few maps for different situations.
I was alittle frustrated on Saturday morning because it wasn't running as well as before, but I had only had it in the car for a few hours when I took it to autocross. After some time with it, I am already getting it running pretty well. After some dyno time, it should be set up pretty well with a few maps for different situations.
Apr 5, 2004, 04:49 PM
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You can use an EBC/MBC with the UTEC. You don't have to do anything different with the UTEC's boost map.
-Nathan
www.turboxs.com
-Nathan
www.turboxs.com
Apr 5, 2004, 05:56 PM
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Originally posted by nmyeti
You can use an EBC/MBC with the UTEC. You don't have to do anything different with the UTEC's boost map.
-Nathan
www.turboxs.com
You can use an EBC/MBC with the UTEC. You don't have to do anything different with the UTEC's boost map.
-Nathan
www.turboxs.com
i am really getting excited now
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