Buschur Racing dyno thread.....new developments.
Originally Posted by davidbuschur
Update.
Just put the Super AFC on the car. Last HP, as I wrote above was 270. I went ahead and pulled up the torque graphs today too, I hadn't looked at them until now.
Stock the car put down 237 whp and 250 ft lbs of torque.
After the boost controller, 2.5" downpipe, axleback and the filter kit it put down 270 whp and 271 ft lbs of torque.
I added the AFC today and the HP jumped to 295 whp with 272 ft lbs of torque.
The charts and such will be getting added to our site as I said, maybe this weekend.
This completes the Economy Stage. Package sells for $995. It added almost exactly 60 whp to the car. Went from 237 to 295. That is a pretty substantial gain. That's $16.58 per horsepower.
The car is running on straight 94 octane, that is all that has ever been in the tank. The car is also still running the stock untouched catalytic converter and catback pipe. It is extremely quiet. This package would still be able to pass emmisions in anywhere.
I'm pleased as this shows how far off our original Stg 1 numbers are that are on our site now.
I will be testing a BOV change and the offroad pipe on this same kit this afternoon, I would really like to see the car break 300 whp and be able to keep the price down.
Al will be coming here in a couple weeks to do some flashes for all of the staged upgrades again. I really believe we can break the 300 whp barrier with this package and flash, even with the stock cat in place.
David Buschur
www.buschurracing.com
Just put the Super AFC on the car. Last HP, as I wrote above was 270. I went ahead and pulled up the torque graphs today too, I hadn't looked at them until now.
Stock the car put down 237 whp and 250 ft lbs of torque.
After the boost controller, 2.5" downpipe, axleback and the filter kit it put down 270 whp and 271 ft lbs of torque.
I added the AFC today and the HP jumped to 295 whp with 272 ft lbs of torque.
The charts and such will be getting added to our site as I said, maybe this weekend.
This completes the Economy Stage. Package sells for $995. It added almost exactly 60 whp to the car. Went from 237 to 295. That is a pretty substantial gain. That's $16.58 per horsepower.
The car is running on straight 94 octane, that is all that has ever been in the tank. The car is also still running the stock untouched catalytic converter and catback pipe. It is extremely quiet. This package would still be able to pass emmisions in anywhere.
I'm pleased as this shows how far off our original Stg 1 numbers are that are on our site now.
I will be testing a BOV change and the offroad pipe on this same kit this afternoon, I would really like to see the car break 300 whp and be able to keep the price down.
Al will be coming here in a couple weeks to do some flashes for all of the staged upgrades again. I really believe we can break the 300 whp barrier with this package and flash, even with the stock cat in place.
David Buschur
www.buschurracing.com
I'm at home now. Finished up all the testing I could think of that would do any of us any good. Now I have a hell of a mess to try and sort out and explain.
Many of the runs that I did were with NO regard to what happened to the boost with the mods. The only thing I attempted to modulate was having as close to 20 psi at the end of a pull that I could. Funny thing I found was the more restricted the exhaust was the crappier boost modulation was. With the full 3" exhaust and no cat and the open exhaust with just the 2.5" downpipe/offroad pipe the boost was quite stable and didn't spike much at all. Some of the runs had up to 24 psi of a spike in them and then fell off to exceptable levels as the RPM climbed. Problem was it is cold as a witches tit here today and so is our dyno room, so this had the car hitting fuel cut in the 4500 rpm range. After 4 pulls back to back it would usually go away but then power would suffer. I ended up pulling some fuel out with the AFC to get rid of the cut in that area.
I did do a test on the Magnaflow muffler VS. the Buschur Racing lightweight muffler. I honestly thought in the back of my head that the Magnaflow would outflow our muffler, that's not what happened. Two runs back-to-back, one was 6 whp less the other was 10 whp less. The full 3" offroad system with our lightweight muffler made the same HP as an open exhaust on the car and did it with less boost, THAT was a shocker. I was right on the money with my estimates for the 3" highflow cat, if I remember right it was almost exactly 10 whp lost at the 315 whp level.
I am going to put together a full run down of all the parts and all the test performed so far in the morning and post them here. The parts will also be listed on our website from now on with the WHP increase that we gained during this testing.
I would have loved to had Al here while I was doing all this, as the flash would have eliminated the fuel cut without having to run the car lean with the AFC at 4500.
I am not going much further with testing until I can get together with Al and do some flashes. I don't want to make too much work for myself.
The MAS pipe and Upper i/c pipe with the BOV is going to go on the car next and that will be the end of the testing until we get some more new custom flashes.
Depending on the time frame I still intend to start tuning with the AEM EMS with all the factory sensors intact.
Something else, as I say, I am at home and am doing some of this from memory. Don't hold me to this. The 2.5" vs. 3" downpipe test was a wash. The HP from the 3" was higher but torque and spool up were so identical I wouldn't call either one a winner or looser. I think the torque was within a few TENTHS of a ft. lb. and the spool up was virtually identical.
As I have said always, run the 3" downpipe, no downside to running a larger exhaust on a turbo car, NONE.
It is going to be interesting to put all this in some type of order and look at it all now that it is done. It has been a very interesting couple of days. I have confirmed what I preach and it has shocked me how right it all proved to be.
David Buschur
www.buschurracing.com
Many of the runs that I did were with NO regard to what happened to the boost with the mods. The only thing I attempted to modulate was having as close to 20 psi at the end of a pull that I could. Funny thing I found was the more restricted the exhaust was the crappier boost modulation was. With the full 3" exhaust and no cat and the open exhaust with just the 2.5" downpipe/offroad pipe the boost was quite stable and didn't spike much at all. Some of the runs had up to 24 psi of a spike in them and then fell off to exceptable levels as the RPM climbed. Problem was it is cold as a witches tit here today and so is our dyno room, so this had the car hitting fuel cut in the 4500 rpm range. After 4 pulls back to back it would usually go away but then power would suffer. I ended up pulling some fuel out with the AFC to get rid of the cut in that area.
I did do a test on the Magnaflow muffler VS. the Buschur Racing lightweight muffler. I honestly thought in the back of my head that the Magnaflow would outflow our muffler, that's not what happened. Two runs back-to-back, one was 6 whp less the other was 10 whp less. The full 3" offroad system with our lightweight muffler made the same HP as an open exhaust on the car and did it with less boost, THAT was a shocker. I was right on the money with my estimates for the 3" highflow cat, if I remember right it was almost exactly 10 whp lost at the 315 whp level.
I am going to put together a full run down of all the parts and all the test performed so far in the morning and post them here. The parts will also be listed on our website from now on with the WHP increase that we gained during this testing.
I would have loved to had Al here while I was doing all this, as the flash would have eliminated the fuel cut without having to run the car lean with the AFC at 4500.
I am not going much further with testing until I can get together with Al and do some flashes. I don't want to make too much work for myself.
The MAS pipe and Upper i/c pipe with the BOV is going to go on the car next and that will be the end of the testing until we get some more new custom flashes.
Depending on the time frame I still intend to start tuning with the AEM EMS with all the factory sensors intact.
Something else, as I say, I am at home and am doing some of this from memory. Don't hold me to this. The 2.5" vs. 3" downpipe test was a wash. The HP from the 3" was higher but torque and spool up were so identical I wouldn't call either one a winner or looser. I think the torque was within a few TENTHS of a ft. lb. and the spool up was virtually identical.
As I have said always, run the 3" downpipe, no downside to running a larger exhaust on a turbo car, NONE.
It is going to be interesting to put all this in some type of order and look at it all now that it is done. It has been a very interesting couple of days. I have confirmed what I preach and it has shocked me how right it all proved to be.
David Buschur
www.buschurracing.com
Originally Posted by davidbuschur
Never getting an AWD dyno. As a matter of fact had this one been easier to pull out of the ground I would have sold it a couple months ago.
David Buschur
www.buschurracing.com
David Buschur
www.buschurracing.com
Keith
AFC settings for all the EVO's are the same, including the MR. We just finished up our first MR here, runs really good.
The old style MAS pipe ran good without stalling issues as long as the AFC or flash were adjusted for it. The new MAS pipe, which is all we have now, has no issues regardless of the tune. This is the pipe that will be tested on the car.
David Buschur
www.buschurracing.com
The old style MAS pipe ran good without stalling issues as long as the AFC or flash were adjusted for it. The new MAS pipe, which is all we have now, has no issues regardless of the tune. This is the pipe that will be tested on the car.
David Buschur
www.buschurracing.com
thank you
Originally Posted by davidbuschur
AFC settings for all the EVO's are the same, including the MR. We just finished up our first MR here, runs really good.
The old style MAS pipe ran good without stalling issues as long as the AFC or flash were adjusted for it. The new MAS pipe, which is all we have now, has no issues regardless of the tune. This is the pipe that will be tested on the car.
David Buschur
www.buschurracing.com
The old style MAS pipe ran good without stalling issues as long as the AFC or flash were adjusted for it. The new MAS pipe, which is all we have now, has no issues regardless of the tune. This is the pipe that will be tested on the car.
David Buschur
www.buschurracing.com
New style mas pipe has only one bend in it and we moved how the BOV re-routes into it.
David Buschur
www.buschurracing.com
David Buschur
www.buschurracing.com
It may take us awhile to actually get dyno charts up. Jarrod and I can't figure out how to get the files opened up.
Here are the results that I feel are important. Please read carefully because it gets confusing. I will do my best though.
2004 Evolution RS. Bone stock, 2wd Dynojet. 237.1 whp/250.6 ft lbs
Parts were added in the order listed below with each part building on the previous:
1. BR air filter kit, 240.5 hp. Added 3.4 whp at the peak and over 7 whp in the midrange.
2. BR manual boost controller set at 20 psi at redline. 252.3 whp. Added 12 whp. This is the absolute minimum increase I would expect to see. Raising the boost later in the buildup would yield even more of an increase.
3. BR 2.5" axleback muffler. 267.1 whp, increase of 15 whp!
4. BR 2.5" downpipe. 270.4 whp, increase of 3.3 whp.
5. Super AFC with BR settings, 289.3 whp, increase of 19 whp.
This with the addition of a boost gauge and the mount for the boost gauge completes our Stage 0 and costs $995. Overall gains with this kit while remaining emmision legal with the stock cat and with a very quiet car was 52.2 whp and 29 ft. lbs of torque. HP per dollar spent is $19.06.
This package really puts the car into a great spot to do further upgrades from. Actually I was surprised by the next test:
We left the 2.5" downpipe on, added a 2.5" offroad pipe and the 3" catback with the Magnaflow muffler. The horsepower jumped to 313 whp and 292.9 ft lbs. For further comparison we ran an open exhaust system from the back of the offroad pipe, in other words no catback at all, the car only made 1 more whp. The open exhaust numbers were 314.4 whp.
We then went to the full 3" turbo back exhaust using the Magnaflow muffler and an offroad pipe. The car layed down 314.9 whp.
*Stage 1 kit is the Stage 0 with a full 3" exhaust and the Buschur Racing lightweight muffler. This means our Stage 1 with 94 octane, the AFC tuned in the 11.7 range on AFR's and 20 psi of boost at redline made 316 whp. This is an increase of 78.9 whp. Stage 1 is $1310. HP per dollar spent is $16.60.
Here are some other interesting numbers we found as we went along:
*On a full Stage 1 car making 314.9 whp (w/Magnaflow muffler) we switched it to our lightweight muffler, gains were minimal with HP going up to 316 whp.
*On a full Stage 1 car making 316 whp with our lighweight muffler we added our 3" highflow cat. The HP dropped to 307.9. Making the whp gain from an offroad pipe worth about 8.1 whp. I would say this isn't enough to justify polluting the air and risking running on public roads without one. The car also keeps the car MUCH quieter.
*Evo with AFC, Boost controller, air filter, boost gauge and mount with the bone stock exhaust on it makes 271 whp. This is a gain of 34 whp. Adding our full 3" exaust with an offroad pipe and the BR muffler to this added 45 whp to the car. In my wildest dreams I would not have expected to see that kind of power increase.
*The boost on these tests were for the most part unstable. I tried different boost controllers and ended up putting 50 dyno runs on the car to do this testing so far. The boost would spike as high as 24 psi on many of the runs and then I would work at getting it to try and hold 20 psi at redline. The least restrictive exhaust proved to be by far the best for getting the boost steady. Our full 3" system on the car left me with a fairly small spike that would go to 22 psi for a short instant and then settle and hold 20 psi. The point and nice thing about this was our highest number so far is 316 whp and it was done with the overall lowest boost numbers.
I think this just about covers all that has been done so far. Very good results and it also makes sense of our Stage 1 numbers on our site being so low. That will get changed as soon as we can get to it.
Thanks for reading. More yet to come.
David Buschur
www.buschurracing.com
Here are the results that I feel are important. Please read carefully because it gets confusing. I will do my best though.
2004 Evolution RS. Bone stock, 2wd Dynojet. 237.1 whp/250.6 ft lbs
Parts were added in the order listed below with each part building on the previous:
1. BR air filter kit, 240.5 hp. Added 3.4 whp at the peak and over 7 whp in the midrange.
2. BR manual boost controller set at 20 psi at redline. 252.3 whp. Added 12 whp. This is the absolute minimum increase I would expect to see. Raising the boost later in the buildup would yield even more of an increase.
3. BR 2.5" axleback muffler. 267.1 whp, increase of 15 whp!
4. BR 2.5" downpipe. 270.4 whp, increase of 3.3 whp.
5. Super AFC with BR settings, 289.3 whp, increase of 19 whp.
This with the addition of a boost gauge and the mount for the boost gauge completes our Stage 0 and costs $995. Overall gains with this kit while remaining emmision legal with the stock cat and with a very quiet car was 52.2 whp and 29 ft. lbs of torque. HP per dollar spent is $19.06.
This package really puts the car into a great spot to do further upgrades from. Actually I was surprised by the next test:
We left the 2.5" downpipe on, added a 2.5" offroad pipe and the 3" catback with the Magnaflow muffler. The horsepower jumped to 313 whp and 292.9 ft lbs. For further comparison we ran an open exhaust system from the back of the offroad pipe, in other words no catback at all, the car only made 1 more whp. The open exhaust numbers were 314.4 whp.
We then went to the full 3" turbo back exhaust using the Magnaflow muffler and an offroad pipe. The car layed down 314.9 whp.
*Stage 1 kit is the Stage 0 with a full 3" exhaust and the Buschur Racing lightweight muffler. This means our Stage 1 with 94 octane, the AFC tuned in the 11.7 range on AFR's and 20 psi of boost at redline made 316 whp. This is an increase of 78.9 whp. Stage 1 is $1310. HP per dollar spent is $16.60.
Here are some other interesting numbers we found as we went along:
*On a full Stage 1 car making 314.9 whp (w/Magnaflow muffler) we switched it to our lightweight muffler, gains were minimal with HP going up to 316 whp.
*On a full Stage 1 car making 316 whp with our lighweight muffler we added our 3" highflow cat. The HP dropped to 307.9. Making the whp gain from an offroad pipe worth about 8.1 whp. I would say this isn't enough to justify polluting the air and risking running on public roads without one. The car also keeps the car MUCH quieter.
*Evo with AFC, Boost controller, air filter, boost gauge and mount with the bone stock exhaust on it makes 271 whp. This is a gain of 34 whp. Adding our full 3" exaust with an offroad pipe and the BR muffler to this added 45 whp to the car. In my wildest dreams I would not have expected to see that kind of power increase.
*The boost on these tests were for the most part unstable. I tried different boost controllers and ended up putting 50 dyno runs on the car to do this testing so far. The boost would spike as high as 24 psi on many of the runs and then I would work at getting it to try and hold 20 psi at redline. The least restrictive exhaust proved to be by far the best for getting the boost steady. Our full 3" system on the car left me with a fairly small spike that would go to 22 psi for a short instant and then settle and hold 20 psi. The point and nice thing about this was our highest number so far is 316 whp and it was done with the overall lowest boost numbers.
I think this just about covers all that has been done so far. Very good results and it also makes sense of our Stage 1 numbers on our site being so low. That will get changed as soon as we can get to it.
Thanks for reading. More yet to come.
David Buschur
www.buschurracing.com
Originally Posted by davidbuschur
We left the 2.5" downpipe on, added a 2.5" offroad pipe and the 3" catback with the Magnaflow muffler. The horsepower jumped to 313 whp and 292.9 ft lbs. For further comparison we ran an open exhaust system from the back of the offroad pipe, in other words no catback at all, the car only made 1 more whp. The open exhaust numbers were 314.4 whp.
We then went to the full 3" turbo back exhaust using the Magnaflow muffler and an offroad pipe. The car layed down 314.9 whp.
We then went to the full 3" turbo back exhaust using the Magnaflow muffler and an offroad pipe. The car layed down 314.9 whp.
BTW, nice writeup David! This is very good information!
