 Out with the old...in with the new...Britain's Racecar Development, Subaru Engine, Lotus Suspension! Time to go racing! |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| Britain Smith |
 Mar 5 2011, 09:49 PM
Post
#201
|
|
Nano Member  Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364  |
QUOTE(DanT @ Mar 5 2011, 07:29 PM)  JP didn't even need to light up.....just inhale (IMG:style_emoticons/default/biggrin.gif) nice job Brit....no mosquitoes in your neighborhood today. (IMG:style_emoticons/default/driving.gif) Ha! Yea, gotta get the smoke plume down. -Britain |
   |
 
|
| Zaney |
Mar 5 2011, 09:59 PM
Post
#202
|
|
Deuchland en der Haus Group: Members Posts: 461 Joined: 1-March 04 From: Engine 11 Redmond, WA Member No.: 1,738 Region Association: Pacific Northwest |
Awesome (IMG:style_emoticons/default/first.gif)
This engine combo is leading the pack in the Teener conversions! Now we need Amenson to get his Sti 914 going (IMG:style_emoticons/default/aktion035.gif) Cheers (IMG:style_emoticons/default/beer.gif) Nate |
|
|
|
| Britain Smith |
Mar 7 2011, 01:05 AM
Post
#203
|
|
Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
The car is officially ready to go. All the body panels on, fluids in, and everything checked. Just gotta load her up and take her to Dr. Bailey at Cobb Tuning Surgeline in the morning.
All the body panels on. (IMG:http://www.914world.com/bbs2/uploads_offsite/a2.sphotos.ak.fbcdn.net-364-1299481523.1.jpg) Engine lid fits with no issues. (IMG:http://www.914world.com/bbs2/uploads_offsite/a5.sphotos.ak.fbcdn.net-364-1299481523.2.jpg) Passenger seat in and waiting for Dr. Tim Bailey at Cobb Tuning Surgeline to work his magic. (IMG:http://www.914world.com/bbs2/uploads_offsite/a8.sphotos.ak.fbcdn.net-364-1299481524.3.jpg) We shall see how it goes. -Britain |
|
|
|
| sawtooth |
Mar 7 2011, 02:05 AM
Post
#204
|
|
Member Group: Members Posts: 297 Joined: 25-June 08 From: Boise, ID Member No.: 9,211 Region Association: Intermountain Region |
Congrats! (IMG:style_emoticons/default/beer.gif) First drive is the best ever. Man you have tolerant neighbors, I'd be strung up for that kind of behavior in my neighborhood. (IMG:style_emoticons/default/smilie_pokal.gif)
|
|
|
|
| BMXerror |
Mar 7 2011, 10:53 AM
Post
#205
|
|
Senior Member Group: Members Posts: 1,705 Joined: 8-April 06 From: Hesperia Ca Member No.: 5,842 |
(IMG:style_emoticons/default/popcorn[1].gif)
Mark D. |
|
|
|
| Andyrew |
Mar 7 2011, 11:35 AM
Post
#206
|
|
Spooling.... Please wait Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California 
|
That is QUICK!
Congrats! Looks like great spool on that turbo! JUST what you want. |
|
|
|
| Randal |
Mar 7 2011, 12:03 PM
Post
#207
|
|
Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
Congratulations Britain. That was only partial throttle.... Wow. Bigger slicks on order? Hell if you get that thing to hook up, you'll have to get a Hans device. |
|
|
|
| Britain Smith |
Mar 8 2011, 12:18 AM
Post
#208
|
|
Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
Spent the entire day today at Cobb Tuning Surgeline getting my car sorted out by Tim Bailey and the crew. Those guys are great and are very knowledgeable even though I tried to bring them the most off the wall project that I could come up with. They went above and beyond to understand the issues that we encountered and did not once complain or make comments about any of the work that I had done. Very professional shop that I would highly recommend to anyone.
Now...to describe the day. I arrived early and got my car strapped in to the dyno and immediately had some issues to address. First off was a bad MAF causing an surging idle. Got that replaced and then spent quite a long time trying to understand why my AIM dash would communicate with the ECU but the EcuTek cable would not seem to connect. Ended up being a ground wire that I for some reason forgot to actually hook up. After that, we spent some time getting the air in the coolant system burped out after I replaced the coolant lines running to and from the turbo. Then, we got to actually run the thing on the dyno and determined that the boost controller wasn't functioning properly and went thru replacing boost lines and replumbing the controller. Things were looking good until at the very end the AVCS (variable cam timing) stopped functioning because the neutral position switch and the vehicle speed sensors both stopped working. Even though we had issues, Tim was able to work his magic on a first pass tune and the car made 330hp and 285ft-lbs at 14psi without AVCS. I will spend the week understanding the faults and get back up there for another pass. I also bought some larger injectors so that we can convert over to E85 and I won't have to buy anymore 110octane leaded race fuel. Here is a video of one of many dyno pulls that were completed. http://www.youtube.com/watch?v=r2zq8AcZHcA https://www.youtube.com/watch?v=r2zq8AcZHcA -Britain |
|
|
|
| Andyrew |
Mar 8 2011, 12:37 AM
Post
#209
|
|
Spooling.... Please wait Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
|
Dyno sheet? Those are some respectable numbers!! Congrats!!
|
|
|
|
| Britain Smith |
Mar 8 2011, 12:39 AM
Post
#210
|
|
Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
Didn't get them tonight...should get a copy tomorrow. They aren't the final numbers, just a start. The coolest thing is that this is 2.0L motor....and it doesn't leak any oil (IMG:style_emoticons/default/smile.gif)
-Britain |
|
|
|
| pktzygt |
Mar 8 2011, 07:48 AM
Post
#211
|
|
Member Group: Members Posts: 328 Joined: 20-March 07 From: Chesapeake, VA Member No.: 7,611 Region Association: MidAtlantic Region |
Impressive! I'm doing a JDM ej20g with a ball bearing turbo and the good heads that the shop I'm working with predicted upper 200 hp range with low boost. I'm anxious to see what yours will do with pump gas.
|
|
|
|
| Randal |
Mar 8 2011, 11:37 AM
Post
#212
|
|
Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
QUOTE(Britain Smith @ Mar 7 2011, 10:18 PM) Spent the entire day today at Cobb Tuning Surgeline getting my car sorted out by Tim Bailey and the crew. Those guys are great and are very knowledgeable even though I tried to bring them the most off the wall project that I could come up with. They went above and beyond to understand the issues that we encountered and did not once complain or make comments about any of the work that I had done. Very professional shop that I would highly recommend to anyone. Now...to describe the day. I arrived early and got my car strapped in to the dyno and immediately had some issues to address. First off was a bad MAF causing an surging idle. Got that replaced and then spent quite a long time trying to understand why my AIM dash would communicate with the ECU but the EcuTek cable would not seem to connect. Ended up being a ground wire that I for some reason forgot to actually hook up. After that, we spent some time getting the air in the coolant system burped out after I replaced the coolant lines running to and from the turbo. Then, we got to actually run the thing on the dyno and determined that the boost controller wasn't functioning properly and went thru replacing boost lines and replumbing the controller. Things were looking good until at the very end the AVCS (variable cam timing) stopped functioning because the neutral position switch and the vehicle speed sensors both stopped working. Even though we had issues, Tim was able to work his magic on a first pass tune and the car made 330hp and 285ft-lbs at 14psi without AVCS. I will spend the week understanding the faults and get back up there for another pass. I also bought some larger injectors so that we can convert over to E85 and I won't have to buy anymore 110octane leaded race fuel. Here is a video of one of many dyno pulls that were completed. http://www.youtube.com/watch?v=r2zq8AcZHcA -Britain Sounds like you had the right team working on the project. How many of the "issues" you encountered could be figured out electronically or was it primarily just the combined experience in the room that help to figure out what was not working? I mean the idle issue is pretty easy to recognize, but how do you know you have air in your coolant lines? And how can a coolant line be bad? What happens when the AVCS stops working? And you made 330 HPRW without it. Wow. That motor is gong to be a barn burner. Sorry about all the questions, but your project is fascinating. You ought to come down for the Ashland Hill Climb. With that motor you'll be King of the Hill. |
|
|
|
| Britain Smith |
Mar 8 2011, 03:44 PM
Post
#213
|
|
Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
Hey Randal.
To answer your questions. 1. The electrical issue was 1 ground wire that I forgot to hook up back at the ECU, that was my fault and was fairly simple to find once we determined that the pin required ground. 2. The bad coolant line was found because there was a large coolant leak under the car after the engine was warmed up. This was due to the ID of the hose being slightly larger than required and poor quality hose clamps. I replaced the line with slightly smaller ID (think standard vs metric hose) and better hose clamps. 3. For air in the coolant system, the engine temp went from 140 to 240 within about 10secs. At this point the sensor was actually reading steam and giving bad values. It also took a while to purge the air in the entire system to the front of the car and back. 4. The AVCS requires a neutral position switch and a vehicle speed sensor to function properly. When the hall effect sensors that I had installed stopped working then the AVCS stopped working. The AVCS is variable cam timing which allows the engine to achieve full boost earlier in the rpm range. With the AVCS, full boost was achieved around 3200rpm or so. Without AVCS, full boost did not come in till about 4000-4500 rpm and the is a drop in the torque. With the AVCS, the torque value will be very similar to the HP value (IMG:style_emoticons/default/smile.gif) -Britain |
|
|
|
| Andyrew |
Mar 8 2011, 03:54 PM
Post
#214
|
|
Spooling.... Please wait Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
|
That sounds a lot like the issue I had on my setup on my Audi. When I first installed a big turbo I was getting full boost at 4700rpms. When I finally installed a electric boost controller and some other do dads I got full boost at 3200. Gave the car a whole different feel, just way more usable power.
|
|
|
|
| BMXerror |
Mar 9 2011, 09:42 PM
Post
#215
|
|
Senior Member Group: Members Posts: 1,705 Joined: 8-April 06 From: Hesperia Ca Member No.: 5,842 |
Great opening numbers, Brit! (IMG:style_emoticons/default/aktion035.gif) Are you looking to push any more boost with E85? BTW, where are those dyno sheets. Let's see that torque curve. (IMG:style_emoticons/default/poke.gif) Great progress. I'm looking forward to watching her run at Lincoln this year. Keep up the good work.
Mark D. |
|
|
|
| Britain Smith |
Mar 9 2011, 11:08 PM
Post
#216
|
|
Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
Hey Mark. I don't have the torque curves on hand and they would not be that beneficial because in the final pulls the AVCS was not functioning properly. I think I have fixed it this evening and I will test it tomorrow. Hopefully I will make it back on the dyno soon.
-Britain |
|
|
|
| PlaysWithCars |
Mar 9 2011, 11:58 PM
Post
#217
|
|
Senior Member Group: Members Posts: 529 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest
|
Hmmmm.... 1700lb car + 330whp motor = (IMG:style_emoticons/default/w00t.gif) (IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/santa_smiley.gif) (IMG:style_emoticons/default/piratenanner.gif) and a whole bunch of other fun smilies.
(IMG:style_emoticons/default/pray.gif) That is going to be one fun ride! |
|
|
|
| DukeTrout |
Mar 11 2011, 03:26 PM
Post
#218
|
|
Newbie Group: Members Posts: 10 Joined: 18-January 11 From: Oregon Member No.: 12,609 Region Association: Pacific Northwest |
QUOTE(Britain Smith @ Mar 8 2011, 01:44 PM) 4. The AVCS requires a neutral position switch and a vehicle speed sensor to function properly. When the hall effect sensors that I had installed stopped working then the AVCS stopped working. The AVCS is variable cam timing which allows the engine to achieve full boost earlier in the rpm range. With the AVCS, full boost was achieved around 3200rpm or so. Without AVCS, full boost did not come in till about 4000-4500 rpm and the is a drop in the torque. With the AVCS, the torque value will be very similar to the HP value (IMG:style_emoticons/default/smile.gif) -Britain Or more, especially with E85. The 2.5 motor is a little torquier than the 2.0, but it's pretty common to have tuned suby engines with 10-15% higher peak torque than peak hp. With AVCS active you may not get much more hp, but expect torque to peak in that 3500 rpm range where full boost hits. |
|
|
|
| Chris Pincetich |
Mar 11 2011, 04:08 PM
Post
#219
|
|
B-) Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California |
What's up with the Subby conversion guys posting burn-out videos?
IT"S NOT FAIR! (IMG:style_emoticons/default/biggrin.gif) I am looking forward to seeing the round 2 dyno info w more of the bugs worked out (IMG:style_emoticons/default/beerchug.gif) |
|
|
|
| Britain Smith |
Mar 11 2011, 05:09 PM
Post
#220
|
|
Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
Round 2 on Monday afternoon. The speed sensor is fixed, the neutral position sensor is "tricked" and the larger injectors will go in on Sunday in preparation for E85.
Not looking to make much more power, just want to complete the tuning and ensure that all systems are a go. -Britain |
|
|
|
|
3 User(s) are reading this topic (3 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 23rd November 2024 - 11:53 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.