Nice power for that measly psi
, I'm sure if you turned it up to 50* you guys would break the 4 digit barrier Awesome setup!
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| Holset HX52 DSM= 816hp/569tq@38psi http://www.4g61t.org/forum/viewtopic.php?f=42&t=36531 |
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| Author: | biglady112 [ Sat Jun 16, 2012 7:42 am ] |
| Post subject: | Holset HX52 DSM= 816hp/569tq@38psi |
After a rather disappointing trip to Ohio in April for the Ohio Mile we started getting ready for Speed Week early. I knew we were close with things, we just did not get enough runs to get the last of the kinks worked out. We got three runs total and only one run were we could get into 5th gear. We came home on a mission to get ready and get this car to where we knew it could be. It has been a rough five years, but we have had a feeling all along this year would be the year we claimed at least one if not both of the Production Supercharged records that we are chasing. The F motor class which is 2.01-3.00L and G motor class which is 1.51-2.00L. We did the math in the land speed calculators and to claim the records the calculators said we needed 720-730hp to reach our goals. So we went in with a goal of 700hp or so and would adjust from there once we got to Utah, IE-turn the boost up during a run if the GPS display did not say a certain MPH by the 3 and 4 mile markers. Well, right off the bat we exceeded our goals with the first pull being 775hp. Boost was 38psi so we decided to go from there and just work on getting the car a bit smoother. Well upwards of 15 runs later we were able to smooth it out nicely. After a plug change to BR9ES' we were able to get our EGT's to acceptable levels and start leaning on it. We had three runs after the swap but could not seem to tune around it breaking up. We took the plugs out and gapped them down to .018". The very next pull is what you see below. 816hp. And it pulled smooth as could be to 9000rpm. We came into today with a goal of running the car over 200mph after the flogging to see if the motor would hold together and to see if our new re-engineered water and oil paths through the motor were going to work and be successful. That and see if this head gasket would stay intact with all the oil and coolant ports blocked off on the deck of the motor and cylinder head. We made it to 210mph before we figured that was enough and after 15 runs it was clear the new engine program was a success. As I said, it took 5 years, but I think we are finally ready. We are gladly accepting sponsorships for cams and intake manifolds to prove their gains and see if this Holset is worth 900hp. With the way things work out at the Salt, we feel we have 30-50hp left in our configuration if this car was a drag car. We do have to dial the timing back a bit and run a ton of fuel through the motor in order to keep head gaskets in the motor for 5 miles at a time. Here we come Bonneville. 1991 Eagle Talon Off the shelf Ross 8.5:1 pistons Off the shelf Manley H beam rods Used Holset HX52 Stock intake manifold Crower 413 cams http://www.streetfire.net/video/816hp-1 ... 388006.htm |
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| Author: | RedTsi [ Sat Jun 16, 2012 9:53 pm ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
How's the lag? At what rpm is full boost? I gotta ask because were finishing my build but on a 2.3 stroker on a 1G and were gonna use an HX52 |
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| Author: | biglady112 [ Sun Jun 17, 2012 1:46 am ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
It spools like a GT42. Just like I said a few years ago when we started running it. I have the same spool on a 1.6L as well. Peak torque is 7500rpm. Full boost around 6500rpm. If you research I have shared it here and on dsmtuners before. |
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| Author: | RedTsi [ Sun Jun 17, 2012 1:58 am ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
Yeah looks good,all this is on a 2.0l right? I wonder how's mine is gonna behave on the stroker plus 9.5:1 pistons |
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| Author: | biglady112 [ Sun Jun 17, 2012 2:43 am ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
2.0L. Probably about the same. |
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| Author: | KOTScolt [ Sun Jun 17, 2012 9:22 pm ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
Nice power for that measly psi , I'm sure if you turned it up to 50* you guys would break the 4 digit barrier Awesome setup! |
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| Author: | biglady112 [ Mon Jun 18, 2012 9:18 am ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
That is an awful long way to go. And that is asking a lot of this turbo. We have a lot to do to get another 200hp out of the setup. But we do plan on going that high in the future. |
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| Author: | dr2.0 [ Sun Jul 01, 2012 10:13 pm ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
sick nasty. |
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| Author: | boostfreak [ Mon Jul 02, 2012 7:26 pm ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
Quote: Nice power for that measly psi
, I'm sure if you turned it up to 50* you guys would break the 4 digit barrier Awesome setup! Its not that easy. 
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| Author: | biglady112 [ Mon Jul 02, 2012 7:44 pm ] |
| Post subject: | Re: Holset HX52 DSM= 816hp/569tq@38psi |
We found out sunday night that we did 816hp with a blown intake manifold gasket. It was pretty much gone around the number 4 cylinder. That explains why that cylinder was about 100* hotter than the rest pull after pull. New gasket is in and things appear to be back in business now. Should kick some serious ass in August. |
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