Vortech YS-trim LS-1 dyno'd (at last)
05-25-2003, 10:25 AM
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Vortech YS-trim LS-1 dyno'd (at last) Vortech YS-trim dyno'd
After a long, cold winter in the shop, we have completed our first dyno pulls on the YS-trim and made 790rwhp, only on the blower. We're using the 3.12 pulley and have ordered a 3.25 pulley to slow the blower down and reduce intake air temps.
When we added a 200 shot, tire (MT Drags) spin on the Mustang dyno was so bad that all we know is that hp was above 800. With a NX 500 shot available, 1000rwhp should be achievable, as long as the head gaskets hold.
Will post pics in a few weeks. stealth.
After a long, cold winter in the shop, we have completed our first dyno pulls on the YS-trim and made 790rwhp, only on the blower. We're using the 3.12 pulley and have ordered a 3.25 pulley to slow the blower down and reduce intake air temps.
When we added a 200 shot, tire (MT Drags) spin on the Mustang dyno was so bad that all we know is that hp was above 800. With a NX 500 shot available, 1000rwhp should be achievable, as long as the head gaskets hold.
Will post pics in a few weeks. stealth.
06-04-2003, 09:37 PM
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Re: Vortech YS-trim LS-1 dyno'd (at last) Well, we made our last two competition licensing runs today at 9.99 and 9.90, with a track DA of 6,800 ft. I think everyone will agree that these times correct to sea level times around 9.2. Will advise on the car's progress.
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06-05-2003, 10:47 AM
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06-05-2003, 05:13 PM
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Re: Vortech YS-trim LS-1 dyno'd (at last) T400. Yea, I'm now licensed in this 2001 Camaro SS for the 7.50 to 9.99 ET class.
BTW, we dyno'd at 860 rwhp on a Mustang dyno on Tuesday night, unadjusted for elevation, so you need add about 60 hp to adjust to sea level = 920 rwhp.
We are racing in Wichita in a few weeks which has a track elevation of 1,400 ft. so we will findout where we are.
PSJ - Big injectors, high octane u/l, conservative air/fuel ratios and timing. There's a LOT more left in it!
BTW, we dyno'd at 860 rwhp on a Mustang dyno on Tuesday night, unadjusted for elevation, so you need add about 60 hp to adjust to sea level = 920 rwhp.
We are racing in Wichita in a few weeks which has a track elevation of 1,400 ft. so we will findout where we are.
PSJ - Big injectors, high octane u/l, conservative air/fuel ratios and timing. There's a LOT more left in it!
06-05-2003, 05:35 PM
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Re: Vortech YS-trim LS-1 dyno'd (at last) 860rwhp is very very stout. We're talking well into the 8's with a 3300 lb car. What was the torque on the blower only pulls? What are you using for a belt tensioner?
06-05-2003, 05:41 PM
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Re: Vortech YS-trim LS-1 dyno'd (at last) PSJ - The car weighs 3600 lbs with me in it. Blower-only torque is around ~790, with 10 lbs. of boost at the manifold. We are using the big 3.12 inch pulley and a G-trim tensioner. We've ordered a 3.23 pulley to slow it down at sea level.
06-05-2003, 05:54 PM
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Re: Vortech YS-trim LS-1 dyno'd (at last) BTW, for those on this thread that use a weather station to predict ETs, please plug-in a 7000 ft. DA into your database and let me know how much the predicted ET is affected. Thanks, stealth.
06-05-2003, 06:12 PM
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Re: Vortech YS-trim LS-1 dyno'd (at last) I have the Vortech 8" crank pulley and 3.12 blower pulley and we were even kicking around the idea of going to a smaller blower pulley but we'll see.
So you did the RMCR blower bracket, so is the blower belt pretty long?
So you did the RMCR blower bracket, so is the blower belt pretty long?