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08-20-2010, 04:37 PM | #26 |
Scooby Specialist
Member#: 179846
Join Date: May 2008
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:07 STi Limited EFR 8474 TS EWG |
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08-20-2010, 05:06 PM | #27 |
Scooby Specialist
Member#: 98000
Join Date: Oct 2005
Location: MO
Vehicle:05 sti e85@420hp |
I'm seriously considering a twinscroll 35r setup for my next build being under the impression spool is considerably quicker than it's rotated equivalent. Not to be an azz, but why so laggy?
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08-20-2010, 05:38 PM | #28 |
Scooby Specialist
Member#: 77470
Join Date: Dec 2004
Chapter/Region:
MWSOC
Location: grove city ohio
Vehicle:04 sti 10.41@141 on e85@ 30psi--spinning |
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08-20-2010, 05:49 PM | #29 |
Scooby Specialist
Member#: 87653
Join Date: May 2005
Chapter/Region:
South East
Location: Long Island NY
Vehicle:97 Supra / 17 GTR 16 Z06 / 07 STI / 05 Evo |
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08-20-2010, 06:40 PM | #30 |
Scooby Specialist
Member#: 77470
Join Date: Dec 2004
Chapter/Region:
MWSOC
Location: grove city ohio
Vehicle:04 sti 10.41@141 on e85@ 30psi--spinning |
^^^^you may be right didn't catch what gear the pull was done in usually done in 4th with a 6 spd
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08-20-2010, 06:41 PM | #31 | |
Scooby Specialist
Member#: 137168
Join Date: Jan 2007
Chapter/Region:
South East
Location: ummm..... Andrewtech ftmfw!
Vehicle:06 Built SGM WRX 35r, PPG, 280's, PSS9. |
Quote:
Maybe its just the dyno? Does it spool the same on the street Bariga? Either way 500 wheel is 500 wheel Chris |
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08-20-2010, 06:42 PM | #32 |
Scooby Specialist
Member#: 137168
Join Date: Jan 2007
Chapter/Region:
South East
Location: ummm..... Andrewtech ftmfw!
Vehicle:06 Built SGM WRX 35r, PPG, 280's, PSS9. |
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08-20-2010, 07:02 PM | #33 |
Scooby Specialist
Member#: 179846
Join Date: May 2008
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:07 STi Limited EFR 8474 TS EWG |
ill post some logs
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08-20-2010, 07:15 PM | #34 |
Scooby Specialist
Member#: 108089
Join Date: Feb 2006
Chapter/Region:
MWSOC
Location: Minnesota
Vehicle:2003 WRX NF Performance |
I like...ALOT!
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08-21-2010, 12:24 AM | #35 |
Scooby Guru
Member#: 33782
Join Date: Mar 2003
Chapter/Region:
MAIC
Location: Milton Keynes, UK
Vehicle:96 3MI Racing search FIRST, then PM!!! |
which cams are you one? what's the lift? just curious, not doubting. you are also on a .82 Ar. You are also like 16% or so smaller turbine AR than this engine...just saying.
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08-21-2010, 01:20 AM | #36 |
Scooby Specialist
Member#: 77470
Join Date: Dec 2004
Chapter/Region:
MWSOC
Location: grove city ohio
Vehicle:04 sti 10.41@141 on e85@ 30psi--spinning |
yeah I know but the hta86 does have a 4mm bigger compressor wheel also.And the cams are right about 282 int and exh with 11.3mm lift on int and 11mm on exh.I would have to look the specs up on the card for the .050 duration.And the cams were decided on by Kevin Ban himself,I gave him hwat I had and what I wanted and thats what he grnd for me.So far these cams have allowed me to pick up almost 40mph on the back half of the 1/4 on 30 psi.
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08-21-2010, 10:37 AM | #37 |
Scooby Guru
Member#: 33782
Join Date: Mar 2003
Chapter/Region:
MAIC
Location: Milton Keynes, UK
Vehicle:96 3MI Racing search FIRST, then PM!!! |
gotcha! What CR are you on? continuing the curiosity information probing
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08-21-2010, 02:05 PM | #38 |
Former Vendor
Member#: 26933
Join Date: Oct 2002
Chapter/Region:
BAIC
Location: Fairfield, CA
Vehicle:2006 STI CGM |
The spool doesn't look too bad for 3rd gear and a 1.06 a/r housing. This is about how a .82 a/r single scroll would spool in 3rd gear.
-- Ed |
08-23-2010, 01:23 AM | #39 |
Scooby Specialist
Member#: 164551
Join Date: Nov 2007
Chapter/Region:
SWIC
Location: Baumholder, Deutschland
Vehicle:2006 Brotastic STi Land of beer and laws |
Im running the Kelford 272s as well, you can get it to spool up a bit more quickly but you and Dom are going to have to sit down and play with the AVCS a little bit, when you have modded cars like ours it takes more than a day of tuning to get it running perfect.
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08-23-2010, 02:06 AM | #40 |
Scooby Specialist
Member#: 179846
Join Date: May 2008
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:07 STi Limited EFR 8474 TS EWG |
Yeah that could be true, your dyno log looks very good maybe its because you have a BorgWarner
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08-23-2010, 05:41 AM | #41 |
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Join Date: Dec 2006
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VIC
Location: Vancouver, BC
Vehicle:'07 SWP STi Instagram | arthurlam89 |
Is there a 4th gear pull graph? 20psi @ 5000rpm is quite laggy imo.
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08-23-2010, 08:03 AM | #42 |
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Join Date: Aug 2010
Chapter/Region:
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Location: CR, IOWA
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Nice numbers.
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08-24-2010, 01:00 AM | #43 |
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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I was honestly a little surprised by the lack of spool. I played with the AVCS quite a bit and it didn't yield much for gains in spool. Not sure why...
we have a few things to work on still with the tune, so I'll probably be giving the tune another shot pretty soon to see if I can lean it out a bit during spool and knock it down a few hundred rpm. I wonder if the 90 right off the turbo is affecting the performance much. Interesting thing though, my 2.3L gets full boost by 4850rpm on a standard 35R .82 hotside. Mine has a small exhaust cam that really helps get the turbo spinning, but chokes out the top end. The CNC porting in my heads helps a bit too. You can see the power curve on this has practically no choke at all. I had really anticipated that the turbo would come in a lot sooner. I do need another 35R for my other car, so maybe I could buy this turbo from the OP and convince him to switch to a BW. Regarding 3rd gear. This is an 07 so 3rd isn't as short as other sti 6mt's. I tune in 4th on the 07's as well. I use as many gears as possible to ensure the tune is ideal. I'll have to see if I have a graph from that on my dyno computer. One thing to think about though, if I published a graph of 4th gear, it wouldn't represent what the car does on the road. [disclaimer] With 07's, you have to be hauling ass to actually use 4th (>85mph) and it wouldn't/shouldn't happen on public roads. [/disclaimer] As far as RPM is concerned: we blueprint our motors at MPS and perform a few mods to the oiling system. This car held over 85psi at 8500rpm. Looking back I should have shimmed the pump a little- in addition to the porting/polishing/deburring- to bump the pressure to 95psi (85 is the relief setpoint of this pump). This engine also has longer rods which help the engine maintain reliability at higher rpm. Head work: When we put the +1mm valves in the head, we enlarged and radiused the valve seats. I did a little bit of cleaning up on the bowls as well to help the airflow. anyway, we'll be at this car some more to see what we can squeeze out of it. |
08-24-2010, 01:02 AM | #44 |
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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08-24-2010, 03:38 AM | #45 | |
Scooby Specialist
Member#: 179846
Join Date: May 2008
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:07 STi Limited EFR 8474 TS EWG |
Both turbos are about the same acording to Jeof at Fullrace, DW takes lead on the race gas though! Maybe Alcooland had better gas 94 octain?
http://forums.clubrsx.com/showthread.php?t=611432 Quote:
Or maybe hydra i holding me back some how//// Last edited by Bariga; 08-24-2010 at 04:06 AM. |
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08-24-2010, 12:00 PM | #46 |
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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frankly I don't believe that graph. I've seen both these turbos in person on many occasions in all sorts of setups. The BW spools faster every time.
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08-24-2010, 01:50 PM | #47 |
Scooby Specialist
Member#: 179846
Join Date: May 2008
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:07 STi Limited EFR 8474 TS EWG |
For the BW ill need to change downpipe a little, ill wait to see leons graph!
Last edited by Bariga; 08-24-2010 at 04:17 PM. |
08-25-2010, 05:59 AM | #48 |
Scooby Guru
Member#: 134949
Join Date: Dec 2006
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VIC
Location: Vancouver, BC
Vehicle:'07 SWP STi Instagram | arthurlam89 |
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08-25-2010, 08:01 AM | #49 |
Scooby Specialist
Member#: 126696
Join Date: Sep 2006
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SWIC
Location: las vegas
Vehicle:2002 Fatbody bugeye 03 R1 09 Raptor 700R |
Should have run the mild 2.34 block with bigger cams....that motor is the money!
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08-25-2010, 12:21 PM | #50 |
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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Leon's turbo setup is installed. We are finishing his fuel system upgrade currently and his intercooler piping.
Soon as that's all done, he'll be on the dyno. |
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