DSP... check in! - Page 11

subydude · 01-28-2009, 07:56 AM

Quote:

Originally Posted by Patrick L

Brand new STI crank. BTW, the RS and STI crank are the same part number.
http://members.cox.net/pdlip/crank.jpg

ORLY?? I never knew they were the same part. Do you mean to the USDM STi? If so that means the redline should be 7,200 instead of 6,200

(assuming of course the valve train could take it). It's good news to me since I was wondering how high I could spin the 2.5 once I swapped a set of cams in.

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Patrick L · 01-28-2009, 09:29 AM

My redline is set at 7000.

neilschelly · 01-28-2009, 11:27 AM

Quote:

Originally Posted by Patrick L

My redline is set at 7000.

As is mine (EJ22) and Storm's EJ22 too I think. Not that we have any power up there, but presumably the EJ25 breathes a bit better up that fast.
-N

wagonman · 01-28-2009, 04:20 PM

Mine is at 7200, and it doesn't do anything but make noise. I have heard rumors that the valvetrain in very similar between the RS and WRX, but the oiling issues is what holds us back from using that redline continually. I know mine never sees it but for a split second, just to avoid the shift to 3rd.

I could be ( and probably am ) wrong about the valvetrain, so don't take my word for it. It is good to know that the crank is the same though

subydude · 01-29-2009, 12:22 AM

Quote:

Originally Posted by wagonman

Mine is at 7200, and it doesn't do anything but make noise. I have heard rumors that the valvetrain in very similar between the RS and WRX, but the oiling issues is what holds us back from using that redline continually. I know mine never sees it but for a split second, just to avoid the shift to 3rd.

I could be ( and probably am ) wrong about the valvetrain, so don't take my word for it. It is good to know that the crank is the same though

Not sure about the valvetrain, but I'm glad to know the oiling is good up to 7k. Mine sits at the stock redline at rallyx events for about 30-40 seconds per run. I was thinking of raising the redline with the i-speed reflash and wanted to be sure that it wouldn't hurt anything. Looks like I'll be making more noise

neilschelly · 01-29-2009, 12:32 AM

Quote:

Originally Posted by subydude

Not sure about the valvetrain, but I'm glad to know the oiling is good up to 7k. Mine sits at the stock redline at rallyx events for about 30-40 seconds per run. I was thinking of raising the redline with the i-speed reflash and wanted to be sure that it wouldn't hurt anything. Looks like I'll be making more noise

It gains you some top-speed in gearing, which can save you from a shift. It's better than bouncing off a low rev-limiter, but it's not going to give you a ton of power up there.
-N

Storm · 01-29-2009, 06:48 AM

^^^ Exactly.... My limiter is at 7500. I know I don't make any more power up there, but the car continues to pick up speed and I avoid the need to shift and lose time in doing so. It's not much use for anything but avoiding that shift.

I found valve float at around 78-7900 on the phase II EJ22 (iirc, have same springs as the EJ25). Our DOHC EJ25 will run right up to and beyond 8k with zero valvetrain modifications.....fresh springs/retainers only. We surely don't keep it up there too long and we're usually not up there mid corner. So far, we've had no issues other than the need for a catchcan.

Jay

subydude · 01-29-2009, 11:56 AM

Quote:

Originally Posted by Storm

^^^ Exactly.... My limiter is at 7500. I know I don't make any more power up there, but the car continues to pick up speed and I avoid the need to shift and lose time in doing so. It's not much use for anything but avoiding that shift.

I found valve float at around 78-7900 on the phase II EJ22 (iirc, have same springs as the EJ25). Our DOHC EJ25 will run right up to and beyond 8k with zero valvetrain modifications.....fresh springs/retainers only. We surely don't keep it up there too long and we're usually not up there mid corner. So far, we've had no issues other than the need for a catchcan.

Jay

Interesting. I know I'm not making power up there, but I stay up there just so I don't have to shift. When you're playing in the mud (rallyx) wheel speed is sometimes more important than power. And the time it takes to shift can drop your wheel speed dramatically.

Do you know if the DOHC EJ25 has the same valvesprings as the SOHC? I doubt they do, but I'm just curious.

whiltebeitel · 01-29-2009, 12:13 PM

Wow, very impressive car. Have you tried to make it to an autocross in College Station with TAMSCC? We've got a nice big concrete site, so you can get some NATS practice in with the recent switch of venue from asphalt.

Storm · 01-29-2009, 03:33 PM

I know for a fact that they are not the same. DOHC heads have more options as far as springs go, since EJ257 springs/retainers are a direct fit. I had them in my Brighton when it had the EJ25 in it. I've talked to folks who have had their DOHC heads built with 'busa springs, though I didn't get an answer on required machining or direct fit. Alternate springs aren't legal for DSP, but I believe rallycross rules are different in that regard.

Jay

Quote:

Originally Posted by subydude

Interesting. I know I'm not making power up there, but I stay up there just so I don't have to shift. When you're playing in the mud (rallyx) wheel speed is sometimes more important than power. And the time it takes to shift can drop your wheel speed dramatically.

Do you know if the DOHC EJ25 has the same valvesprings as the SOHC? I doubt they do, but I'm just curious.

subydude · 01-29-2009, 06:38 PM

Quote:

Originally Posted by Storm

I know for a fact that they are not the same. DOHC heads have more options as far as springs go, since EJ257 springs/retainers are a direct fit. I had them in my Brighton when it had the EJ25 in it. I've talked to folks who have had their DOHC heads built with 'busa springs, though I didn't get an answer on required machining or direct fit. Alternate springs aren't legal for DSP, but I believe rallycross rules are different in that regard.

Jay

Well poop. Good info though.

Rallyx rules are very simple (at the moment). SA is like stock classes in autox. PA is like ST classes in autox, and M4 is like A Mod in autox. Pretty simple

solo-x · 01-30-2009, 12:59 PM

Quote:

Originally Posted by Patrick L

Yes that is the plan for them to clear the WRX brakes 4 ad 2 pots

Nate, yes dual pattern.
or if you want a seperate sets with a 6" BS.

I'm a definite for 2 wheels with a 6" BS and the 5x114.3 bolt pattern. Not sure where to find someone to buy the other 18 wheels though.

I could probably make the neon fitment work if that is a dual bolt pattern though. .25" won't kill me and these won't be my primary wheels anyhow.

Patrick L · 02-01-2009, 12:55 AM

well I got back this afternoon from OKC after completing the engine. Should be able to put her in next Saturday. I just need a few last minute parts like the thermostate and a new bearing for one of the timing belt sprokets. Other then that, everything else is on the old engine in the car.

http://members.cox.net/pdlip/longblock4.jpg

solo-x · 02-01-2009, 07:25 PM

Looking good man. My motor is still in pieces. I did just drop it off at the machine shop with the new pistons and crap, but it'll be at lest 2 weeks before I start final assembly.

Patrick L · 02-07-2009, 11:18 PM

Well the new motor is in and running. I got about 32 miles on it now. I am going to change the oil tomorrow and get about 300 miles before I change it again. All is good so far. Oil pressure is great and my Autometer gauge reads a bit lower then it acually is as I had a calibrated mechanical gauge from work it check it on the initial start up.

Storm · 02-09-2009, 09:46 AM

Got your message Pat. Good to hear! I dunno what to tell ya about the pressur gauge. If it's an electric type with a sending unit, you may have some amount of adjustment to dial in the signal.

Jay

solo-x · 03-09-2009, 04:19 PM

teh R lives again. Started the new motor yesterday. Wider 10.5" wheels are done, interior is 90% back in, etc. Projects that are left are fab the passenger seat brackets and install, install the belts, tune the AEM EMS, and kick some BMW and Subie @ss.

Storm · 03-09-2009, 06:38 PM

pffft..... The Link ECU is now in the FSP car and I'd put it up against our DSP car as it sits! Gotta love the ability to tune the timing curve for good gas!!!! We'll have to look at times next event we run together!

Jay

Quote:

Originally Posted by solo-x

teh R lives again. Started the new motor yesterday. Wider 10.5" wheels are done, interior is 90% back in, etc. Projects that are left are fab the passenger seat brackets and install, install the belts, tune the AEM EMS, and kick some BMW and Subie @ss.

lulu007hey · 03-10-2009, 02:25 PM

http://www.***********.com/default.aspx

Patrick L · 04-15-2009, 08:17 AM

Here are the results. The old motor and the new motor. Look at where the torque is at the start and what the rpm is on both.

http://members.cox.net/pdlip/patolddyno.jpg
http://members.cox.net/pdlip/patnewdyno.JPG

I am going to need to send off the ecu to have them clean it up a bit. Runs a bit too rich on the low end and fix that lean spike in the middle.
It's not hurting anything. The clean up should give me a tad more power

Storm · 04-15-2009, 11:41 AM

That's excellent, Pat!!!! Get that ECU tuned ASAP! There's more left on the table for you.

See in Lincoln!!!

Jay

Chiketkd · 04-15-2009, 12:23 PM

Nice gains Pat! Congrats!!!

solo-x · 04-15-2009, 07:25 PM

Nice job Pat! I'm still running a stock 'puter. The AEM didn't make any gains over stock, and the adapter harness was giving us fits, so since we didn't get any extra power, I kept it simple and went back to the stock brain.

The passenger seat brackets got done, and then I decided I really liked how it came out, so I decided to rework the drivers side brackets. End result, the drivers seat is nearly 10lbs lighter!

When I had it on the dyno I noticed it was still puffing a lot of oil out the exhaust, so I sprung for a pimpy catch can setup. Hopefully my guess is right and I'm sucking oil out through the PVC system. It was overfilled by half a quart so that might have been contributing to the issue as well. Plugs looked good though, and the dang thing rips. How much of that is me driving a 90hp 320k mile civic all winter and not being used to a car with power and how much is actually due to it making good power is hard to say. I was on a different dyno then last summer, so I can't compare the numbers between dyno's either, but I'm told it's making about what a car with that engine and set of modifications would make. :shrug:

racerjon1 · 04-19-2009, 05:13 PM

Well...

I am finally officially "checking in" for DSP.

Steven Rankins (pleiades) and I are campaigning my 1999 2.5 RS this year for Boxer4Racing and SubaruPartsPro.com - for those of you that may have been watching for a few years, this is a continuation of our 2005 DSP/STX effort in the 2.5 RS he had before he got his STI.

We had been planning the effort on paper for a while, and finally started throwing parts at the car in February. In March we went to the Dixie National Tour and finished 1-2 and we have continued to work on the car the past few weeks, and though it has a long way to go, it's getting better.

Rankins on his way to first place at the 2009 Dixie National Tour

I nearly captured the car's first FTD this weekend at a South Carolina Region event at the Michelin Laurens Proving Grounds, but got knocked off the top spot by an SSM 300ZX. Here is the on-board video from the event:

http://www.youtube.com/watch?v=nRHc4e7ug1Y

Next up - the SEDIV Event next weekend in Virginia.

Jon K

solo-x · 04-19-2009, 08:35 PM

Hey Jon! You guys planning on sticking with the tall tires, or will you be joining the 275/35/15 crowd?

BTW, oil out the exhaust = bad, mkay? Damn oil issue persists. At least I don't have PJ's oil problem. His is the kind where the oil won't stay in the block because the block got renovated with some windows, a door, and a skylight. I think he's trying a bit hard with the weight reduction....

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01-28-2009, 09:29 AM	#252
Patrick L Scooby Specialist Member#: 634 Join Date: Dec 1999 Chapter/Region: TXIC Location: Oklahoma City, OK Vehicle: 2000 Impreza 2.5RS Becasue racecar	My redline is set at 7000.

01-28-2009, 04:20 PM	#254
wagonman Scooby Specialist Member#: 971 Join Date: Feb 2000 Chapter/Region: South East Location: Simpsonville, SC	Mine is at 7200, and it doesn't do anything but make noise. I have heard rumors that the valvetrain in very similar between the RS and WRX, but the oiling issues is what holds us back from using that redline continually. I know mine never sees it but for a split second, just to avoid the shift to 3rd. I could be ( and probably am ) wrong about the valvetrain, so don't take my word for it. It is good to know that the crank is the same though

01-29-2009, 06:48 AM	#257
Storm Scooby Guru Member#: 5218 Join Date: Mar 2001 Chapter/Region: MWSOC Location: SAUL'S Motorsports Vehicle: 96L Most Over- Developed Beater	^^^ Exactly.... My limiter is at 7500. I know I don't make any more power up there, but the car continues to pick up speed and I avoid the need to shift and lose time in doing so. It's not much use for anything but avoiding that shift. I found valve float at around 78-7900 on the phase II EJ22 (iirc, have same springs as the EJ25). Our DOHC EJ25 will run right up to and beyond 8k with zero valvetrain modifications.....fresh springs/retainers only. We surely don't keep it up there too long and we're usually not up there mid corner. So far, we've had no issues other than the need for a catchcan. Jay

01-29-2009, 12:13 PM	#259
whiltebeitel Scooby Newbie Member#: 201514 Join Date: Jan 2009 Location: College Station, TX Vehicle: 1989 BMW 325i Zinno (red)	Wow, very impressive car. Have you tried to make it to an autocross in College Station with TAMSCC? We've got a nice big concrete site, so you can get some NATS practice in with the recent switch of venue from asphalt.

02-01-2009, 12:55 AM	#263
Patrick L Scooby Specialist Member#: 634 Join Date: Dec 1999 Chapter/Region: TXIC Location: Oklahoma City, OK Vehicle: 2000 Impreza 2.5RS Becasue racecar	well I got back this afternoon from OKC after completing the engine. Should be able to put her in next Saturday. I just need a few last minute parts like the thermostate and a new bearing for one of the timing belt sprokets. Other then that, everything else is on the old engine in the car. http://members.cox.net/pdlip/longblock4.jpg

02-01-2009, 07:25 PM	#264
solo-x Scooby Specialist Member#: 37624 Join Date: May 2003 Chapter/Region: NESIC Location: Doesn't drive a scooby....	Looking good man. My motor is still in pieces. I did just drop it off at the machine shop with the new pistons and crap, but it'll be at lest 2 weeks before I start final assembly.

02-07-2009, 11:18 PM	#265
Patrick L Scooby Specialist Member#: 634 Join Date: Dec 1999 Chapter/Region: TXIC Location: Oklahoma City, OK Vehicle: 2000 Impreza 2.5RS Becasue racecar	Well the new motor is in and running. I got about 32 miles on it now. I am going to change the oil tomorrow and get about 300 miles before I change it again. All is good so far. Oil pressure is great and my Autometer gauge reads a bit lower then it acually is as I had a calibrated mechanical gauge from work it check it on the initial start up.

02-09-2009, 09:46 AM	#266
Storm Scooby Guru Member#: 5218 Join Date: Mar 2001 Chapter/Region: MWSOC Location: SAUL'S Motorsports Vehicle: 96L Most Over- Developed Beater	Got your message Pat. Good to hear! I dunno what to tell ya about the pressur gauge. If it's an electric type with a sending unit, you may have some amount of adjustment to dial in the signal. Jay

03-09-2009, 04:19 PM	#267
solo-x Scooby Specialist Member#: 37624 Join Date: May 2003 Chapter/Region: NESIC Location: Doesn't drive a scooby....	teh R lives again. Started the new motor yesterday. Wider 10.5" wheels are done, interior is 90% back in, etc. Projects that are left are fab the passenger seat brackets and install, install the belts, tune the AEM EMS, and kick some BMW and Subie @ss.

03-10-2009, 02:25 PM	#269
lulu007hey * Banned * Member#: 205283 Join Date: Mar 2009	http://www.***********.com/default.aspx

04-15-2009, 08:17 AM	#270
Patrick L Scooby Specialist Member#: 634 Join Date: Dec 1999 Chapter/Region: TXIC Location: Oklahoma City, OK Vehicle: 2000 Impreza 2.5RS Becasue racecar	Here are the results. The old motor and the new motor. Look at where the torque is at the start and what the rpm is on both. http://members.cox.net/pdlip/patolddyno.jpg http://members.cox.net/pdlip/patnewdyno.JPG I am going to need to send off the ecu to have them clean it up a bit. Runs a bit too rich on the low end and fix that lean spike in the middle. It's not hurting anything. The clean up should give me a tad more power

04-15-2009, 11:41 AM	#271
Storm Scooby Guru Member#: 5218 Join Date: Mar 2001 Chapter/Region: MWSOC Location: SAUL'S Motorsports Vehicle: 96L Most Over- Developed Beater	That's excellent, Pat!!!! Get that ECU tuned ASAP! There's more left on the table for you. See in Lincoln!!! Jay

04-15-2009, 12:23 PM	#272
Chiketkd Scooby Guru Member#: 71634 Join Date: Sep 2004 Chapter/Region: MAIC Location: C-Ville, VA Vehicle: In hibernation...	Nice gains Pat! Congrats!!!

04-15-2009, 07:25 PM	#273
solo-x Scooby Specialist Member#: 37624 Join Date: May 2003 Chapter/Region: NESIC Location: Doesn't drive a scooby....	Nice job Pat! I'm still running a stock 'puter. The AEM didn't make any gains over stock, and the adapter harness was giving us fits, so since we didn't get any extra power, I kept it simple and went back to the stock brain. The passenger seat brackets got done, and then I decided I really liked how it came out, so I decided to rework the drivers side brackets. End result, the drivers seat is nearly 10lbs lighter! When I had it on the dyno I noticed it was still puffing a lot of oil out the exhaust, so I sprung for a pimpy catch can setup. Hopefully my guess is right and I'm sucking oil out through the PVC system. It was overfilled by half a quart so that might have been contributing to the issue as well. Plugs looked good though, and the dang thing rips. How much of that is me driving a 90hp 320k mile civic all winter and not being used to a car with power and how much is actually due to it making good power is hard to say. I was on a different dyno then last summer, so I can't compare the numbers between dyno's either, but I'm told it's making about what a car with that engine and set of modifications would make. :shrug:

04-19-2009, 05:13 PM	#274
racerjon1 Scooby Specialist Member#: 43612 Join Date: Sep 2003 Location: Columbia, SC	Well... I am finally officially "checking in" for DSP. Steven Rankins (pleiades) and I are campaigning my 1999 2.5 RS this year for Boxer4Racing and SubaruPartsPro.com - for those of you that may have been watching for a few years, this is a continuation of our 2005 DSP/STX effort in the 2.5 RS he had before he got his STI. We had been planning the effort on paper for a while, and finally started throwing parts at the car in February. In March we went to the Dixie National Tour and finished 1-2 and we have continued to work on the car the past few weeks, and though it has a long way to go, it's getting better. Rankins on his way to first place at the 2009 Dixie National Tour I nearly captured the car's first FTD this weekend at a South Carolina Region event at the Michelin Laurens Proving Grounds, but got knocked off the top spot by an SSM 300ZX. Here is the on-board video from the event: http://www.youtube.com/watch?v=nRHc4e7ug1Y Next up - the SEDIV Event next weekend in Virginia. Jon K

04-19-2009, 08:35 PM	#275
solo-x Scooby Specialist Member#: 37624 Join Date: May 2003 Chapter/Region: NESIC Location: Doesn't drive a scooby....	Hey Jon! You guys planning on sticking with the tall tires, or will you be joining the 275/35/15 crowd? BTW, oil out the exhaust = bad, mkay? Damn oil issue persists. At least I don't have PJ's oil problem. His is the kind where the oil won't stay in the block because the block got renovated with some windows, a door, and a skylight. I think he's trying a bit hard with the weight reduction....