BW ET50 Trim Dyno
Feb 14, 2008, 07:55 AM
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BW ET50 Trim Dyno
Car put together by VIP Garage self-tuned:
This is the Borg Warner Extended Tip 50 trim (S256)
502 awhp / 501 tq
The tailpipe sniffer was a little lean and slow. I'm actually running 11.3 after peak boost. I had them kill the run at 7k, since I haven't confirmed my tune beyond 7100 rpms.
Mods:
Borg Warner Extended Tip 50 trim turbo (ET 256)
2.3L stroker
HKS 272/272 (+2,-1)
Manley springs/retainers
Spiking to 31.5 psi holding 30 psi tapering to 29 by 7k
Snow performance 100% methanol
Buschur Race FMIC
VIP Garage exhaust manifold
HKS RS Intake
Sun Hyperforce
PTE 880cc injectors
(..more)
I have a fairly conservative tune with low timing at the top. More to come once I feel comfortable enough to take it to 8000 rpms, turn up boost, and tune.
This is the Borg Warner Extended Tip 50 trim (S256)
502 awhp / 501 tq
The tailpipe sniffer was a little lean and slow. I'm actually running 11.3 after peak boost. I had them kill the run at 7k, since I haven't confirmed my tune beyond 7100 rpms.
Mods:
Borg Warner Extended Tip 50 trim turbo (ET 256)
2.3L stroker
HKS 272/272 (+2,-1)
Manley springs/retainers
Spiking to 31.5 psi holding 30 psi tapering to 29 by 7k
Snow performance 100% methanol
Buschur Race FMIC
VIP Garage exhaust manifold
HKS RS Intake
Sun Hyperforce
PTE 880cc injectors
(..more)
I have a fairly conservative tune with low timing at the top. More to come once I feel comfortable enough to take it to 8000 rpms, turn up boost, and tune.
Last edited by MadMsheen; Sep 16, 2009 at 09:36 PM.
Feb 14, 2008, 08:19 AM
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Thanks.
In the graph you'll notice a little dip at 6000 rpms. There were 2 counts of knock right there. I haven't seen the 6k rpm leanspot in a while, and it manifested itself on that pull. I've since tuned to correct. I'm going to attempt to have the spool hold longer. When I was on stock block, I had the boost hold 30.x all the way to 7800 rpms.
In the graph you'll notice a little dip at 6000 rpms. There were 2 counts of knock right there. I haven't seen the 6k rpm leanspot in a while, and it manifested itself on that pull. I've since tuned to correct. I'm going to attempt to have the spool hold longer. When I was on stock block, I had the boost hold 30.x all the way to 7800 rpms.
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Feb 14, 2008, 08:21 AM
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VIP Garage has all the specs on the turbo and setup. They're contact info is in Juice's post.
As for the spool, the turbo does spool slower than other BW ET50 trims on 2.3L stroker. I've seen another S256 on here with cast manifold spool a lot faster. We decided to go with a larger exhaust manifold and AR housing in hopes of maintaining the torque longer.
As for the spool, the turbo does spool slower than other BW ET50 trims on 2.3L stroker. I've seen another S256 on here with cast manifold spool a lot faster. We decided to go with a larger exhaust manifold and AR housing in hopes of maintaining the torque longer.
Feb 14, 2008, 08:27 AM
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Thanks.
In the graph you'll notice a little dip at 6000 rpms. There were 2 counts of knock right there. I haven't seen the 6k rpm leanspot in a while, and it manifested itself on that pull. I've since tuned to correct. I'm going to attempt to have the spool hold longer. When I was on stock block, I had the boost hold 30.x all the way to 7800 rpms.
In the graph you'll notice a little dip at 6000 rpms. There were 2 counts of knock right there. I haven't seen the 6k rpm leanspot in a while, and it manifested itself on that pull. I've since tuned to correct. I'm going to attempt to have the spool hold longer. When I was on stock block, I had the boost hold 30.x all the way to 7800 rpms.
Feb 14, 2008, 09:25 AM
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I have HKS 272/272 CAMs at (+2,-1) and my car has barely a hint of lope. My exhaust is fairly quiet around town. I live in Virginia, so that's a must. It's been a lot of work, but I enjoyed every minute of it. I'm still not done with tuning this setup.
Later I will be tuning for a (-4,-1) setup for the strip.
