New drive-shaft based Dyno. Need your help!
12-26-2010 | 06:07 AM
#15
Thread Starter
Staging Lane
Joined: Mar 2005
Posts: 61
Likes: 0
From: So Cal.
I only pulled up to ~4000rpm. The torque was still increasing. If it held steady to 5252RPM, then the flywheel HP would have been 478HP. But I think 400hp is probably closer to reality. I will try to get a full pull to 5500rpm in this week to verify. I need to toss in an LC-1, while I am at it.
With a stock/baseline of 300hp at the flywheel, I think much more than about a 30% increase in power is a bit much to ask for from ~ 6psi.
361RWHP would work out to something like 480hp at the flywheel in my setup. I don't think you can get much more than ~ +180hp from a 6psi blower. Even one with a cold output like a Wynjammer. In fact. I think the theoretical increase is only about 40% or about +122hp.
Other than the blower, and the injectors/tuning; this is a stock 6.0L. No cam, no headers, no pre-cat, no porting, etc.
If I get numbers like 360rwhp out of this setup, Al, over at Wynjammer, deserves a Nobel prize
With a stock/baseline of 300hp at the flywheel, I think much more than about a 30% increase in power is a bit much to ask for from ~ 6psi.
361RWHP would work out to something like 480hp at the flywheel in my setup. I don't think you can get much more than ~ +180hp from a 6psi blower. Even one with a cold output like a Wynjammer. In fact. I think the theoretical increase is only about 40% or about +122hp.
Other than the blower, and the injectors/tuning; this is a stock 6.0L. No cam, no headers, no pre-cat, no porting, etc.
If I get numbers like 360rwhp out of this setup, Al, over at Wynjammer, deserves a Nobel prize
12-26-2010 | 07:48 AM
#16
GFYS and STFU
iTrader: (8)
Joined: Jan 2007
Posts: 13,870
Likes: 4
From: Here and sometimes there too.
I only pulled up to ~4000rpm. The torque was still increasing. If it held steady to 5252RPM, then the flywheel HP would have been 478HP. But I think 400hp is probably closer to reality. I will try to get a full pull to 5500rpm in this week to verify. I need to toss in an LC-1, while I am at it.
With a stock/baseline of 300hp at the flywheel, I think much more than about a 30% increase in power is a bit much to ask for from ~ 6psi.
361RWHP would work out to something like 480hp at the flywheel in my setup. I don't think you can get much more than ~ +180hp from a 6psi blower. Even one with a cold output like a Wynjammer. In fact. I think the theoretical increase is only about 40% or about +122hp.
Other than the blower, and the injectors/tuning; this is a stock 6.0L. No cam, no headers, no pre-cat, no porting, etc.
If I get numbers like 360rwhp out of this setup, Al, over at Wynjammer, deserves a Nobel prize
With a stock/baseline of 300hp at the flywheel, I think much more than about a 30% increase in power is a bit much to ask for from ~ 6psi.
361RWHP would work out to something like 480hp at the flywheel in my setup. I don't think you can get much more than ~ +180hp from a 6psi blower. Even one with a cold output like a Wynjammer. In fact. I think the theoretical increase is only about 40% or about +122hp.
Other than the blower, and the injectors/tuning; this is a stock 6.0L. No cam, no headers, no pre-cat, no porting, etc.
If I get numbers like 360rwhp out of this setup, Al, over at Wynjammer, deserves a Nobel prize
Even so, I would think with a full WOT pull to your shift points, a mid 3xx rwhp number is not out of the question.
Subscribing for updates on your next test!!
12-26-2010 | 07:47 PM
#17
Thread Starter
Staging Lane
Joined: Mar 2005
Posts: 61
Likes: 0
From: So Cal.
I hope you are right But, I really think I need to make some exhaust system upgrades to get there. Or, maybe the stock HD exhaust is better than I think ?
My best guess is 400hp at the flywheel and 300hp at the wheels.
Next test will be Wednesday, when I get back home. I need to wire up the manifold pressure sensor and throttle position sensor inputs to get a better idea of what I am looking at.
All that said, I will probably never actually run this truck up to full power, other than for testing this toy. This is my tow.
This.... is my racer
But, I really think I need to make some exhaust system upgrades to get there. Or, maybe the stock HD exhaust is better than I think ?My best guess is 400hp at the flywheel and 300hp at the wheels.
Next test will be Wednesday, when I get back home. I need to wire up the manifold pressure sensor and throttle position sensor inputs to get a better idea of what I am looking at.
All that said, I will probably never actually run this truck up to full power, other than for testing this toy. This is my tow.
This.... is my racer
12-29-2010 | 05:10 PM
#20
Thread Starter
Staging Lane
Joined: Mar 2005
Posts: 61
Likes: 0
From: So Cal.
Well, this sucks.
After making a best pull of 405hp & 505ft-lbs @ 4210rpm, The truck developed a rod knock. Had to send the truck over to the mechanic. Probable overhaul
Are the stock rod-bolts good for 500ft-lbs+ ?
either way, I'll upgrade to the ARP wave-lock type.
After making a best pull of 405hp & 505ft-lbs @ 4210rpm, The truck developed a rod knock. Had to send the truck over to the mechanic. Probable overhaul
Are the stock rod-bolts good for 500ft-lbs+ ?
either way, I'll upgrade to the ARP wave-lock type.