Shuiend blows motor #5; Naturally Aspirated Glory Incoming
05-29-2011, 02:26 PM
#801
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I have a 1-2psi drop in the intercooler, but zero inconsistency with heat-soak when the car is moving. I'd take the WG signal as close to the turbo as possible, maybe from the intercooler tank.
I agree with you guys that the ports on just about every boost controller are too small. TiAL guy told me to bore-out the ports and hope for the best. The expensive, fancy, Greddy and Apexi supposedly have larger ports but I don't have that kind of cash nor do I give a ****.
I agree with you guys that the ports on just about every boost controller are too small. TiAL guy told me to bore-out the ports and hope for the best. The expensive, fancy, Greddy and Apexi supposedly have larger ports but I don't have that kind of cash nor do I give a ****.
I am going to pick up a much bigger IC in the very near future. I currently have the small Begi one and it is not up to the task. I am debating between sending my current one into Begi and having them make it larger, or getting the Precision 600hp one that Savington raves about. When I get one of those I will definitely get and air port added on.
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05-29-2011, 02:30 PM
#802
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This solenoid has 1/4inch inlets and outlets. It is a bigger version of what DIYAutoTune sells now. I just did not have time to pick it before coming up for the dyno day.
I am going to pick up a much bigger IC in the very near future. I currently have the small Begi one and it is not up to the task. I am debating between sending my current one into Begi and having them make it larger, or getting the Precision 600hp one that Savington raves about. When I get one of those I will definitely get and air port added on.
I am going to pick up a much bigger IC in the very near future. I currently have the small Begi one and it is not up to the task. I am debating between sending my current one into Begi and having them make it larger, or getting the Precision 600hp one that Savington raves about. When I get one of those I will definitely get and air port added on.
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05-29-2011, 02:46 PM
#803
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Now that I have tin snips, rivet gun, and tin I will be doing some better ducting this next week.
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05-29-2011, 04:19 PM
#804
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Current ducting is just the stock under tray. On my last run on the dyno my intake temps went up approximately 20degrees and even higher then that when we did several back to back runs at the start.
Now that I have tin snips, rivet gun, and tin I will be doing some better ducting this next week.
Now that I have tin snips, rivet gun, and tin I will be doing some better ducting this next week.
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05-29-2011, 07:54 PM
#805
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here's his before and after.
most improvement was from adjusting his VVT and cleaning up his fueling.
he had a little less, but I didn't get a print out of the run we did that was 3° retarded compared to this.
most improvement was from adjusting his VVT and cleaning up his fueling.
he had a little less, but I didn't get a print out of the run we did that was 3° retarded compared to this.
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05-30-2011, 08:58 AM
#808
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just hookup what you have inline with the lower port. i had the same issue with the top port of my MS-v and as soon as i hooked it up to the lower i had boost control.
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05-30-2011, 09:12 AM
#809
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we tried that once everything else failed.
I had him setup the solenoid so if the valve failed it would fail to wastegate. So only boost would go to the lower port.
Then the software was setup in a manner that it would allow full boost to reach the upper port. This should raise boost.
and it did. Felt awesome spooling fast up to 215kPa...but no matter if I put the solenoid to 100% or 0% there was no difference. That made me think it couldn't bleed enough boost from the upper port.
So we altered the routing a bit just to try to get any reaction from a fully closed solenoid and fully open to no avail.
My last ditch effect was running it inline to the lower only like an internal wastegate setup, but even then I could only get wastegate, I could raise it above. The solenoid was operational but we were failing.
At least he got a good baseline run. I cleaned the hell out of his fuel map, bumped the timing up a bit, and got his VVT to bump up his low end just a bit and fix it dropping off at 5K. He still has more to make with timing, that was only 18-20* at 10psi. But being 500 miles away he didn't want to push it without being meticulously tuned.
I think his BEGi intake manifold might be robbing him some mid-range TQ, but that top end is great. As soon as he runs 15psi, hell match that of his T25 at 4K and then hit ~300hp...not too shabby on a dyno dynamics, that would be around 336rwhp on a dynojet.
here's my prediction at 15psi:
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05-31-2011, 12:28 PM
#810
we tried that once everything else failed.
I had him setup the solenoid so if the valve failed it would fail to wastegate. So only boost would go to the lower port.
Then the software was setup in a manner that it would allow full boost to reach the upper port. This should raise boost.
and it did. Felt awesome spooling fast up to 215kPa...but no matter if I put the solenoid to 100% or 0% there was no difference. That made me think it couldn't bleed enough boost from the upper port.
So we altered the routing a bit just to try to get any reaction from a fully closed solenoid and fully open to no avail.
My last ditch effect was running it inline to the lower only like an internal wastegate setup, but even then I could only get wastegate, I could raise it above. The solenoid was operational but we were failing.
At least he got a good baseline run. I cleaned the hell out of his fuel map, bumped the timing up a bit, and got his VVT to bump up his low end just a bit and fix it dropping off at 5K. He still has more to make with timing, that was only 18-20* at 10psi. But being 500 miles away he didn't want to push it without being meticulously tuned.
I think his BEGi intake manifold might be robbing him some mid-range TQ, but that top end is great. As soon as he runs 15psi, hell match that of his T25 at 4K and then hit ~300hp...not too shabby on a dyno dynamics, that would be around 336rwhp on a dynojet.
here's my prediction at 15psi:
I had him setup the solenoid so if the valve failed it would fail to wastegate. So only boost would go to the lower port.
Then the software was setup in a manner that it would allow full boost to reach the upper port. This should raise boost.
and it did. Felt awesome spooling fast up to 215kPa...but no matter if I put the solenoid to 100% or 0% there was no difference. That made me think it couldn't bleed enough boost from the upper port.
So we altered the routing a bit just to try to get any reaction from a fully closed solenoid and fully open to no avail.
My last ditch effect was running it inline to the lower only like an internal wastegate setup, but even then I could only get wastegate, I could raise it above. The solenoid was operational but we were failing.
At least he got a good baseline run. I cleaned the hell out of his fuel map, bumped the timing up a bit, and got his VVT to bump up his low end just a bit and fix it dropping off at 5K. He still has more to make with timing, that was only 18-20* at 10psi. But being 500 miles away he didn't want to push it without being meticulously tuned.
I think his BEGi intake manifold might be robbing him some mid-range TQ, but that top end is great. As soon as he runs 15psi, hell match that of his T25 at 4K and then hit ~300hp...not too shabby on a dyno dynamics, that would be around 336rwhp on a dynojet.
here's my prediction at 15psi:
OP, you gonna be drag racing? is that why you want the staged boost control? you know the fix for that right? better tires! besides a little of this
is always fun.
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05-31-2011, 01:18 PM
#811
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yes has has overboost. what made you suggest it doesnt?
MS3 has closed loop boost control, it will always be the same level of boost no matter the elevation, once tuned.
He wants to run gear/speed based boost control so he doesn't break traction in 1st and 2nd gears.
MS3 has closed loop boost control, it will always be the same level of boost no matter the elevation, once tuned.
He wants to run gear/speed based boost control so he doesn't break traction in 1st and 2nd gears.
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05-31-2011, 01:27 PM
#813
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I have overboost set at 225kpa right now and I have hit that at around 3800rpms trying to get my EBC working.
I want gear based boost control just because it should be easy to setup once my EBC works.
15x9 6UL and 225 RS3's will hopefully be bought this fall.
I want gear based boost control just because it should be easy to setup once my EBC works.
15x9 6UL and 225 RS3's will hopefully be bought this fall.
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05-31-2011, 02:12 PM
#814
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Another way to get boost control setup would be to T the line to the bottom port and put the solinoid in there to bleed the boost off.
this system wouldnt be as nice though.
this system wouldnt be as nice though.
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05-31-2011, 02:14 PM
#815
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bleeding off boost to the lower port doesn't make any sense.
the exhaust pressure would have to overcome the spring pressure AND the boost pressure on the top to open the wastegate.
the exhaust pressure would have to overcome the spring pressure AND the boost pressure on the top to open the wastegate.
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05-31-2011, 02:44 PM
#817
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we tried that, we couldn't bleed enough out of the solenoid to increase boost over wastegate. and I posted such in post #809. The GM solenoid he's using has port the size of my pee hole.
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05-31-2011, 02:47 PM
#818
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Is MS like the AEM system, do you have to setup the valve frequency to get the proper PW and stuff?
i.e. is the solinoid compatable with the computer?
that is the most basic way to control boost and it 100% should work.
i.e. is the solinoid compatable with the computer?
that is the most basic way to control boost and it 100% should work.
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05-31-2011, 02:52 PM
#819
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You make me want to punch you with a ban hammer.
the valve was set to 19.5Hz.
In all configurations I tried: 0% duty cycle and 100% duty cycle.
This is fully opening and fully closing the valve. in all the configurations we tried, we would only have full boost or wastegate. there was no change to the boost output if the valve was opened or closed.
I tested the valve operation and it worked, but I was unable to control the boost.
the valve was set to 19.5Hz.
In all configurations I tried: 0% duty cycle and 100% duty cycle.
This is fully opening and fully closing the valve. in all the configurations we tried, we would only have full boost or wastegate. there was no change to the boost output if the valve was opened or closed.
I tested the valve operation and it worked, but I was unable to control the boost.
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