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07-10-2005, 08:49 PM | #1 |
Scooby Specialist
Member#: 85337
Join Date: Apr 2005
Chapter/Region:
NWIC
Location: 98052
Vehicle:96 LX Coupe Not sure right now. |
know of a 2.5rsT that lasts a long time?
has anybody had really good luck with a turbo on a 2.5rs? i know it has been done before, but longevity seems to be a problem. i know what i need to build it right, and i know about the seperate engine management. im looking to see if someone has done it running more than 3 years at more that 5 psi. im looking for maybe 5 years at 7-12 psi depending on my mood for that day...
if anyone knows anything or even heard of someone whos had it longer, please let me know.
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07-10-2005, 09:05 PM | #2 |
RIP 10/12/83 to 02/10/08
Scooby Specialist Member#: 83254
Join Date: Mar 2005
Chapter/Region:
NWIC
Location: Roy, Washington
Vehicle:98 2.5 RS 04 WRX |
There are people on here who have run nearly 100k miles turbocharged. You won't last long running 7-12 psi for very long. The compression is way too high. The 5 psi would put you faster than a WRX anyway. If you want to keep the 2.5 liters of displacement, and running that kinda boost your 2 options are STi Shortblock, or new pistons and rods to lower the compression.
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07-10-2005, 09:56 PM | #3 |
Scooby Specialist
Member#: 85337
Join Date: Apr 2005
Chapter/Region:
NWIC
Location: 98052
Vehicle:96 LX Coupe Not sure right now. |
ok i know about the pistons and rods. im also looking at a new cam, sti injectors, and some other small stuff. high quality head gasket and such. i can deal with 5 psi. thanks for the input dude.!
trevor |
07-10-2005, 10:55 PM | #4 |
Scooby Guru
Member#: 13617
Join Date: Dec 2001
Chapter/Region:
MWSOC
Location: MN
Vehicle:2001 Legacy GT back to stock is a project too |
wont last long running 7-12psi? how long is long? i know a few people that have lasted quite a while, one person i know has probably 30k miles on his setup all above 7psi, probably the last 10k at 11psi and track days are at 14psi all on stock block.
Ben |
07-11-2005, 12:05 AM | #5 |
Scooby Specialist
Member#: 40413
Join Date: Jul 2003
Vehicle:2001 BRP RS-T EJ257 Link'd - 252WHP 274WTQ |
8 psi so far and over 10k boosting.
I have a buddy with an 99 RST and he had his car running at 12 psi for 3 years and one full year at 16 psi.... 99s can run 12 psi all day long... no problem.... I wouldn't recommend over that if you want longevity.... it all goes down to how much power you want... You can do 7 psi no problem... |
07-11-2005, 12:47 AM | #6 |
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Join Date: Mar 2001
Location: Central New York
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Ran '99RS 10psi supercharged year round for 30k from 60k to 90k miles. I took it off car ran to 120k before I lost a rod bearing NA.
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07-11-2005, 01:18 AM | #7 |
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I ran my car with the large t3/t4 at 12psi for quite a long time on the stock block before it let go, and it let go just while revving
I did track days and 1/4 miles during this time as well. My friend has a similar setup and his car is still running (ps, he's parting his car and selling the kit btw, custom setup with STi topmount and Tec II ecu/550s etc) |
07-11-2005, 01:56 AM | #8 |
RIP 10/12/83 to 02/10/08
Scooby Specialist Member#: 83254
Join Date: Mar 2005
Chapter/Region:
NWIC
Location: Roy, Washington
Vehicle:98 2.5 RS 04 WRX |
I didn't say it was impossible to run more than 5 PSI, there are very few who run that high and actually get results that last longer than one pull. Theres a reason the FAT and AVO kits only run 6 PSI, and that is for constant reliability. Any higher than that and your gambling the life of your engine. PHATsuby, 30k isn't that long either, thats alittle more than a year with the amount i drive. Not very long at all (unless you can afford a new engine every 30k+ miles)
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07-11-2005, 03:07 AM | #9 |
Scooby Guru
Member#: 13617
Join Date: Dec 2001
Chapter/Region:
MWSOC
Location: MN
Vehicle:2001 Legacy GT back to stock is a project too |
well, you can still go longer than that, 30k per year is going to be a lot of highway miles I am assuming correct? just because you are going 30k miles in a year doesnt mean you are boosting more than any other average person unless you accelerate as fast as you can every single time to get up to speed.
done CORRECTLY, it will last. also, the reason AVO and FAT kits only run 6psi is not just for constant reliability, its because they do not want to be held liable for people putting their kits on and blowing their motors because those kits do not come with fuel upgrades that make more than 6psi possible because that would cost more. if those kits came with upgraded pumps and injectors, they could offer a map for easily 9psi that is just as "reliable" as the 6psi one. just a few thoughts from someone who has turbo'd their own car. Ben Last edited by PHATsuby; 07-11-2005 at 03:14 AM. |
07-11-2005, 10:16 AM | #10 |
Scooby Newbie
Member#: 81107
Join Date: Feb 2005
Location: Southern Oregon
Vehicle:2000 2.5rs silverthorn/Carbon Fiber |
I just bought the JC sports kit that runs off the VF11 turbo. 92 legacy turbo i believe... anyway, it is way tiny and apparently hits full boost at 2200, but it only runs at like 4.5-5 psi. With proper engine management do you think my engine will last 70k on that setup?? The previous owner had lasted 3 years on the kit without any problems... I guess I am just looking for some encouragement as I was a bit nervous in taking the forced induction plunge...
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07-11-2005, 12:20 PM | #11 |
Scooby Specialist
Member#: 40413
Join Date: Jul 2003
Vehicle:2001 BRP RS-T EJ257 Link'd - 252WHP 274WTQ |
you can run 6 psi no problem... just get engine management... and get it tuned right.
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07-11-2005, 12:25 PM | #12 |
Scooby Newbie
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Join Date: Feb 2005
Location: Southern Oregon
Vehicle:2000 2.5rs silverthorn/Carbon Fiber |
awesome! Thank you! I feel much better! lol
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07-12-2005, 06:21 AM | #13 |
Scooby Specialist
Member#: 56
Join Date: Jun 1999
Chapter/Region:
South East
Location: Doral, Florida
Vehicle:1999 RS-T (Stage V) 2021 Audi A4 SLine 45TFSI |
1999 RS-T:
3 Boosted Years... 45,000 Boosted Miles @ 8-10 psis... 2 Broken Transmissions... 1 Happy Camper |
07-12-2005, 11:13 AM | #14 |
Scooby Guru
Member#: 13617
Join Date: Dec 2001
Chapter/Region:
MWSOC
Location: MN
Vehicle:2001 Legacy GT back to stock is a project too |
also, my setup is for sale if someone would like a nice kit that can last a long time
http://forums.nasioc.com/forums/showthread.php?t=805127 Ben |
07-12-2005, 12:49 PM | #15 |
Scooby Specialist
Member#: 85337
Join Date: Apr 2005
Chapter/Region:
NWIC
Location: 98052
Vehicle:96 LX Coupe Not sure right now. |
interesting to see that a few of you have done or heard of this on the stock block...ok. so im marking engine management up there with the list of needs. great...
sweet. thanks for everyones input. i have my answer, and ill be back in a month or two to let everyone know how its working. trevor |
07-12-2005, 12:56 PM | #16 |
Scooby Specialist
Member#: 1366
Join Date: Apr 2000
Chapter/Region:
VIC
Location: Delta, BC, Canada
Vehicle:2000 RS-T -> RSTi-8 Blue Ridge Pearl |
I believe the 99 motor has a low enough compression to last even up to 9-10 psi when you have enough fuel. I haven't read much about 00+ motor, and certainly I have heard that 03+ motors are weaker. I don't think with enough fuel I would try anything more than 8 on my 00 motor unless someone has done it and still has the original shortblock. Granted, mine wasn't turbo'd for the first 114K KM and I drove quite hard even on the streets
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07-12-2005, 01:04 PM | #17 |
Scooby Guru
Member#: 13617
Join Date: Dec 2001
Chapter/Region:
MWSOC
Location: MN
Vehicle:2001 Legacy GT back to stock is a project too |
i am boosting 11psi on my 01 stock NA ej25 with no problems, like i said earlier, my friend with the same motor does 11psi also and 14psi on track days and auto-x. it will handle power if you tune it well.
Ben |
07-12-2005, 01:42 PM | #18 |
Scooby Specialist
Member#: 85337
Join Date: Apr 2005
Chapter/Region:
NWIC
Location: 98052
Vehicle:96 LX Coupe Not sure right now. |
yeah, im preparing for a 1.8 to a 2000 2.5rs with 60K original miles swap, and im getting everything i need together before hand for the turbo. those numbers of 12 psi are looking really hot on a 2.5...especially mostly stock.
thanks again for all info! trevor |
07-12-2005, 05:18 PM | #19 | |
Scooby Specialist
Member#: 1366
Join Date: Apr 2000
Chapter/Region:
VIC
Location: Delta, BC, Canada
Vehicle:2000 RS-T -> RSTi-8 Blue Ridge Pearl |
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07-13-2005, 12:29 AM | #20 | |
Scooby Guru
Member#: 13617
Join Date: Dec 2001
Chapter/Region:
MWSOC
Location: MN
Vehicle:2001 Legacy GT back to stock is a project too |
Quote:
Ben |
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07-15-2005, 08:33 AM | #21 |
Scooby Specialist
Member#: 6
Join Date: Jun 1999
Location: South Jersey
Vehicle:2013 BMW M3 Coupe Interlagos Blue |
I no longer own the car, but my old '98 RS is still running strong. It was turbocharged in June of 1999 with 6K miles on it and it probably has close to 100K on it now.
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07-15-2005, 02:41 PM | #22 | |
Scooby Specialist
Member#: 1366
Join Date: Apr 2000
Chapter/Region:
VIC
Location: Delta, BC, Canada
Vehicle:2000 RS-T -> RSTi-8 Blue Ridge Pearl |
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