Official STS Rear Mount Turbo Discussion Thread
08-30-2007, 07:24 PM
#221
Registered User
iTrader: (8)
Join Date: Oct 2005
Location: New York City
Posts: 265
Likes: 0
Received 0 Likes
on
0 Posts
I didn't have the MPS software up and running when i datalogged the old setup. But after browsing through the old UTEC logs, it seems like the earliest I ever hit 6PSI was somewhere in the 4000RPM to 4500RPM range. From the MPS logs of the new setup, it seems I may be hitting 6PSI up to 500RPM earlier.
Old Setup - UTEC Log 2007.08.14 High Boost Map 75F
Old Setup - UTEC Log 2007.08.15 High Boost Map 80F
Old Setup - UTEC Log 2007.08.14 High Boost Map 75F
Old Setup - UTEC Log 2007.08.15 High Boost Map 80F
08-30-2007, 07:26 PM
#222
Registered User
iTrader: (8)
Join Date: Oct 2005
Location: New York City
Posts: 265
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by athenG
did you try to use the other maps? maybe Julian accidentally copied the low boost map over there
08-30-2007, 07:36 PM
#223
Registered User
iTrader: (2)
Join Date: Nov 2005
Location: NYC
Posts: 2,252
Likes: 0
Received 0 Likes
on
0 Posts
Ok, I don't know what to say anymore since I don't want to speculate
But I'm happy were we are all going. Daniel said that TP seem to help the spool and based on your test that the Heat Wrap did help a little too.... I guess combining both and what ever result I find with the IC, hhmmm future is a little brighter
I Hope
But I'm happy were we are all going. Daniel said that TP seem to help the spool and based on your test that the Heat Wrap did help a little too.... I guess combining both and what ever result I find with the IC, hhmmm future is a little brighter I Hope
08-30-2007, 08:01 PM
#225
Banned
iTrader: (28)
Join Date: Dec 2005
Location: Spotswood NJ
Posts: 5,510
Likes: 0
Received 0 Likes
on
0 Posts
Lewis,
Were the knock counts at off throttle? Also, I did lower the boost map by 5% when /I got back to the shop, cause it was hitting almost 9psi.I didnt think that 5% would make such a differenct.
One thing I have observed is the spool up of the turbo, especially on the Automatic tranny is very inconsistant. At times it will spool up lower RPMs then take off, at other times it seems to spool up..I never experienced such a hard time tuning a particular set up for power and consistancy.
The more I see, the less I like this turbo kit.
Were the knock counts at off throttle? Also, I did lower the boost map by 5% when /I got back to the shop, cause it was hitting almost 9psi.I didnt think that 5% would make such a differenct.
One thing I have observed is the spool up of the turbo, especially on the Automatic tranny is very inconsistant. At times it will spool up lower RPMs then take off, at other times it seems to spool up..I never experienced such a hard time tuning a particular set up for power and consistancy.
The more I see, the less I like this turbo kit.
08-31-2007, 04:06 AM
#227
Registered User
iTrader: (8)
Join Date: Oct 2005
Location: New York City
Posts: 265
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MRC Motorsports
Lewis,
Were the knock counts at off throttle? Also, I did lower the boost map by 5% when /I got back to the shop, cause it was hitting almost 9psi.I didnt think that 5% would make such a differenct.
One thing I have observed is the spool up of the turbo, especially on the Automatic tranny is very inconsistant. At times it will spool up lower RPMs then take off, at other times it seems to spool up..I never experienced such a hard time tuning a particular set up for power and consistancy.
The more I see, the less I like this turbo kit.
Were the knock counts at off throttle? Also, I did lower the boost map by 5% when /I got back to the shop, cause it was hitting almost 9psi.I didnt think that 5% would make such a differenct.
One thing I have observed is the spool up of the turbo, especially on the Automatic tranny is very inconsistant. At times it will spool up lower RPMs then take off, at other times it seems to spool up..I never experienced such a hard time tuning a particular set up for power and consistancy.
The more I see, the less I like this turbo kit.
I will try to correct the boost map as you suggested in your PM, and do more data logging tonight.
I believe the knock counts were off throttle.
Between the turbo setup and the auto tranny, I have a feeling the auto tranny is the slushy component behind all these inconsistencies. The next element I upgrade is definitely the SGP VB and Pro-Torque TC.
08-31-2007, 04:52 AM
#228
Banned
Thread Starter
iTrader: (27)
Join Date: Sep 2006
Location: Concord, North Carolina
Posts: 3,485
Likes: 0
Received 0 Likes
on
0 Posts
I should be doing the SGP vb upgrade here in the next two weeks. I'm hoping the increased shift speed will lower the amount of boost spike I am getting between shifts. Goose, you said you weren't getting any boost spike between shifts right?
08-31-2007, 05:15 AM
#229
Registered User
iTrader: (8)
Join Date: Oct 2005
Location: New York City
Posts: 265
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by danielwebb
I should be doing the SGP vb upgrade here in the next two weeks. I'm hoping the increased shift speed will lower the amount of boost spike I am getting between shifts. Goose, you said you weren't getting any boost spike between shifts right?
Out of curiosity, what is the current turn-around time on the SGP VB upgrade? Last I checked, there was no core program, so any car looking to be upgraded had downtime of at least several days.
08-31-2007, 05:40 AM
#230
Registered User
iTrader: (2)
Join Date: Nov 2005
Location: NYC
Posts: 2,252
Likes: 0
Received 0 Likes
on
0 Posts
FYI, the Upgrade FMIC is Core is 20" x 12" x 3.5" and has 19 tubes and 20 fins, should be direct bolt-on but might have to cut one tube a little short. I'm still waiting if there is a core exchange and how much will it be for us testers....
Decision... decision....
Decision... decision....
08-31-2007, 06:10 AM
#231
Banned
iTrader: (28)
Join Date: Dec 2005
Location: Spotswood NJ
Posts: 5,510
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by athenG
FYI, the Upgrade FMIC is Core is 20" x 12" x 3.5" and has 19 tubes and 20 fins, should be direct bolt-on but might have to cut one tube a little short. I'm still waiting if there is a core exchange and how much will it be for us testers....
Decision... decision....
Decision... decision....
08-31-2007, 06:25 AM
#232
Registered User
iTrader: (2)
Join Date: Nov 2005
Location: NYC
Posts: 2,252
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MRC Motorsports
I personally dont see long term high HP numbers from one of these kits in its current form. I woud focus on upgrading/outgrowing the system.
. I have fallen in love with the sound if I can fix this little problem (spool time, boost drop..etc) then I can go do a motor build and Rick has lots of option for turbo upgrade. I guess what I'm trying to say is that we haven't really tested the kit to its full potential, I guess once we have tried everything (Exhaust Mod, IC.. etc) and nothing work then I would just drop everything and move on I'm just waiting for Rick about the Upgrade IC price and if it wont cost that much for us tester then I might consider that, else I'll just make a schedule for you to upgrade my IC. Julian, please don't give up on us yet
08-31-2007, 06:32 AM
#233
Banned
iTrader: (28)
Join Date: Dec 2005
Location: Spotswood NJ
Posts: 5,510
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by athenG
I'm really searching my soul about this setup ever since you post your mad Turn Key Package . I have fallen in love with the sound if I can fix this little problem (spool time, boost drop..etc) then I can go do a motor build and Rick has lots of option for turbo upgrade. I guess what I'm trying to say is that we haven't really tested the kit to its full potential, I guess once we have tried everything (Exhaust Mod, IC.. etc) and nothing work then I would just drop everything and move on
I'm just waiting for Rick about the Upgrade IC price and if it wont cost that much for us tester then I might consider that, else I'll just make a schedule for you to upgrade my IC. Julian, please don't give up on us yet
. I have fallen in love with the sound if I can fix this little problem (spool time, boost drop..etc) then I can go do a motor build and Rick has lots of option for turbo upgrade. I guess what I'm trying to say is that we haven't really tested the kit to its full potential, I guess once we have tried everything (Exhaust Mod, IC.. etc) and nothing work then I would just drop everything and move on I'm just waiting for Rick about the Upgrade IC price and if it wont cost that much for us tester then I might consider that, else I'll just make a schedule for you to upgrade my IC. Julian, please don't give up on us yet
08-31-2007, 06:35 AM
#234
Registered User
iTrader: (8)
Join Date: Oct 2005
Location: New York City
Posts: 265
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MRC Motorsports
The problem we see with it is the length of the piping to get to the intake. Keep in mind the larger turbo you go, the longer the spook up characteristics of it. So if you go from a GT25 sized turbo, to a GT37 or GT40, the top end HP will be tremendous, however the spool up time will suffer greatly. If your building a motor to rev to 9000rpms, then great. However, realisticly, I dont see a functional rear mount kit making above the 400 mark and being fun and practical to drive at the same time.
08-31-2007, 06:40 AM
#235
Banned
iTrader: (28)
Join Date: Dec 2005
Location: Spotswood NJ
Posts: 5,510
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by goosegoose
400 or just under 400 is fine for me, so long as everything else about the kit is efficient, quick, and not prone to failure. Hopefully this is not an impossible goal.
It works great for what it is, just dont place your current expectations to high.
08-31-2007, 06:57 AM
#236
Registered User
iTrader: (2)
Join Date: Nov 2005
Location: NYC
Posts: 2,252
Likes: 0
Received 0 Likes
on
0 Posts
/\ point taken, all we want is decent spool and a reliable power around 400 and base on other Single Turbo spool time out there, we are not that far behind.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
08-31-2007, 07:01 AM
#237
Banned
iTrader: (28)
Join Date: Dec 2005
Location: Spotswood NJ
Posts: 5,510
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by athenG
/\ point taken, all we want is decent spool and a reliable power around 400 and base on other Single Turbo spool time out there, we are not that far behind.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
Perhaps he had the smaller GT25 which would spool pretty fast.
08-31-2007, 07:04 AM
#238
Registered User
iTrader: (8)
Join Date: Oct 2005
Location: New York City
Posts: 265
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by athenG
/\ point taken, all we want is decent spool and a reliable power around 400 and base on other Single Turbo spool time out there, we are not that far behind.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
who did this?
SubZero?
...
I need to see some definitive proof of this one, if it is for real.
08-31-2007, 07:06 AM
#239
Banned
Thread Starter
iTrader: (27)
Join Date: Sep 2006
Location: Concord, North Carolina
Posts: 3,485
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by athenG
/\ point taken, all we want is decent spool and a reliable power around 400 and base on other Single Turbo spool time out there, we are not that far behind.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
One of the first tester I bleived tried the GT35R and was hitting full boost at 3000rpm or even below that so there is potential out there.
yeah I would be totally fine with anything close to 400 at the wheels. Are you referring to sub zero with the gt35r? I thought he said his spool time suffered with the new turbo?
08-31-2007, 07:12 AM
#240
Registered User
iTrader: (8)
Join Date: Oct 2005
Location: New York City
Posts: 265
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by danielwebb
yeah I would be totally fine with anything close to 400 at the wheels. Are you referring to sub zero with the gt35r? I thought he said his spool time suffered with the new turbo?
Athens, are you talking about a different person?
I hope there really was someone who changed their turbo out to improve spool times and efficiency.