Advertisement |
|
|
|
If this is your first visit, be sure to check out the FAQ by clicking the link above.
You may have to register before you can post: click the register link above to proceed.
To start viewing messages, select the forum that you want to visit from the selection below.
|
Dyno Forum Discuss Dyno Tuning, and Post those Graphs Here! |
08-31-2014, 08:00 PM
|
#1
|
Name: RED_SLED
Title: Diesel Enthusiast
Status: Not Here
Join Date: Sep 2013
Member`s Gallery
Posts: 210
|
444HP???
I strapped my truck to the rollers yesterday and I only made 444 HP. i made 20psi less boost and could not get the egts above 1200*. The dyno was an inertia dyno. It had zero load and i still managed to smoke my tires on the rollers. A Pulling truck there with a 13mm pump, 5x20s and a s472 only made 480hp. He also hit 160 mph in the truck. So what's the deal? Was the numbers so low because of the dyno being a no-load type??
__________________
1995 Dodge 3500 12 valve 4x4. Balanced rotating assembly, Dragon fly pump, Bullseye s467, DFI 5x16s, Haisley DVs, 4k gsk, Hamilton 188/208 cam, pushrods, 165lb springs, locks and retainers, S&B intake, ARPs, snow w/m, DPS manifold, FASS 220, South Bend DD
Last edited by RED_SLED; 08-31-2014 at 08:02 PM.
|
|
|
08-31-2014, 08:11 PM
|
#2
|
Name: JL Builders
Title: On a quest for more power
Status: Not Here
Join Date: Apr 2011
Location: Moseley Virginia
Member`s Gallery
Posts: 1,267
|
Inertia dynos are a waste of time IMO.
__________________
6.7 sled puller, cracked motor in half.... Nothing to show for it. But ready to try again.
|
|
|
08-31-2014, 08:30 PM
|
#3
|
Name: madmikeismad
Title: So mad
Status: Not Here
Join Date: Dec 2009
Location: Newalla, OK
Member`s Gallery
Posts: 14,347
|
Quote:
Originally Posted by jl builders
inertia dynos are a waste of time imo.
|
x20000
__________________
Mike Hill
|
|
|
08-31-2014, 08:52 PM
|
#4
|
Name: RED_SLED
Title: Diesel Enthusiast
Status: Not Here
Join Date: Sep 2013
Member`s Gallery
Posts: 210
|
Dang thats $60 wasted.
__________________
1995 Dodge 3500 12 valve 4x4. Balanced rotating assembly, Dragon fly pump, Bullseye s467, DFI 5x16s, Haisley DVs, 4k gsk, Hamilton 188/208 cam, pushrods, 165lb springs, locks and retainers, S&B intake, ARPs, snow w/m, DPS manifold, FASS 220, South Bend DD
|
|
|
08-31-2014, 10:47 PM
|
#5
|
Name: madmikeismad
Title: So mad
Status: Not Here
Join Date: Dec 2009
Location: Newalla, OK
Member`s Gallery
Posts: 14,347
|
Nah its a good starting point. And you know you're over 444 now lol. And 60 is cheap for a dyno session.
__________________
Mike Hill
|
|
|
09-01-2014, 12:09 AM
|
#6
|
Name: JQmile
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2006
Member`s Gallery
Posts: 6,976
|
I wouldn't be so quick to blame the dyno, I've seen 1,000+ rwhp trucks do just fine, with a dyno operator who's good, and a driver who knows how to drive it.
__________________
89 Dodge 972rwhp on the hose, still a VE!
|
|
|
09-01-2014, 12:12 AM
|
#7
|
Name: madmikeismad
Title: So mad
Status: Not Here
Join Date: Dec 2009
Location: Newalla, OK
Member`s Gallery
Posts: 14,347
|
True, but if he noticeably didn't load it as hard, you know it has more potential. I'm not a fan of riding the brakes and all that jazz.
__________________
Mike Hill
|
|
|
09-01-2014, 09:42 AM
|
#8
|
Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
|
Quote:
Originally Posted by RED_SLED
I still managed to smoke my tires on the rollers.
|
Tires slipping on the rollers could be a factor also.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
|
|
|
09-01-2014, 12:55 PM
|
#9
|
Name: Leiffi
Title: Too Much Time
Status: Not Here
Join Date: Jan 2013
Member`s Gallery
Posts: 1,381
|
Inertia dynos are the only way to go. If your turbo doesn't spool on the inertia dyno it never spools on the 1/4 mile before traps. Sledpulling is different, couldn't care less.
|
|
|
09-01-2014, 02:15 PM
|
#10
|
Name: madmikeismad
Title: So mad
Status: Not Here
Join Date: Dec 2009
Location: Newalla, OK
Member`s Gallery
Posts: 14,347
|
Quote:
Originally Posted by Leiffi
Inertia dynos are the only way to go. If your turbo doesn't spool on the inertia dyno it never spools on the 1/4 mile before traps. Sledpulling is different, couldn't care less.
|
What? I made 15psi less on inertia than i did on track/street. Inertia dyno just doesn't load it enough unless you "cheat"
__________________
Mike Hill
|
|
|
09-01-2014, 02:23 PM
|
#11
|
Name: JL Builders
Title: On a quest for more power
Status: Not Here
Join Date: Apr 2011
Location: Moseley Virginia
Member`s Gallery
Posts: 1,267
|
Quote:
Originally Posted by Leiffi
Inertia dynos are the only way to go. If your turbo doesn't spool on the inertia dyno it never spools on the 1/4 mile before traps. Sledpulling is different, couldn't care less.
|
Couldn't disagree more.
__________________
6.7 sled puller, cracked motor in half.... Nothing to show for it. But ready to try again.
|
|
|
09-01-2014, 03:03 PM
|
#12
|
Name: chevota84
Title: Too Much Time
Status: Not Here
Join Date: Jul 2009
Location: Prineville, OR
Member`s Gallery
Posts: 4,926
|
Quote:
Originally Posted by Leiffi
Inertia dynos are the only way to go. If your turbo doesn't spool on the inertia dyno it never spools on the 1/4 mile before traps. Sledpulling is different, couldn't care less.
|
No. I lost 20 psi over what I see on the street with a very small set of compounds that light just fine. The only way I could get full boost was by dragging the brakes which will take accuracy and repeatability completely out of the test.
Sent from my SCH-I545 using Tapatalk
__________________
99 Dodge 2500 with stuff
|
|
|
09-01-2014, 06:26 PM
|
#13
|
Name: RED_SLED
Title: Diesel Enthusiast
Status: Not Here
Join Date: Sep 2013
Member`s Gallery
Posts: 210
|
I tried loading the turbo with the brakes and still couldn't get on top of it and I usually am at full boost by 2400 rpm and i pushed my truck to 3900 and still could not achieve full boost. A dyno sheet proven 820 hp duramax only made 516 hp.
__________________
1995 Dodge 3500 12 valve 4x4. Balanced rotating assembly, Dragon fly pump, Bullseye s467, DFI 5x16s, Haisley DVs, 4k gsk, Hamilton 188/208 cam, pushrods, 165lb springs, locks and retainers, S&B intake, ARPs, snow w/m, DPS manifold, FASS 220, South Bend DD
|
|
|
09-04-2014, 04:00 PM
|
#14
|
Name: dirtydiesel
Title: Diesel Enthusiast
Status: Not Here
Join Date: Apr 2009
Location: Sarver, PA
Member`s Gallery
Posts: 151
|
What kind of dyno was it? I know the drums on my brothers dyno jet weigh like 7000 pounds if I recall... I think some mustang dynos the drums are half the size... We have had a few 900 hp trucks on and neither one spun on the rollers.... And I agree 100 percent on the person in the truck... There was a certain truck that the owner running his own truck made almost 100 hp more on our dyno then dun bars and I believe they are the same dyno
__________________
2006 chevy 2500HD LBZ, MBRP, FASS, EFI live, PPE, RDL egr delete,DE downpipe, alligator performance pvc reroute, cognito braces, rareparts tierods, SC 1054 Big Dipper trans, Danville stg 2 3794, 45 over injectors, fleece 10mm cp3. Lowered 2 inches 11.82@114
|
|
|
09-06-2014, 05:42 PM
|
#15
|
Name: Extended Power
Title: Too Much Time
Status: Not Here
Join Date: May 2006
Member`s Gallery
Posts: 2,978
|
My truck only did 677hp with 35psi boost this year in Edmonton at JB's diesel event.
They couldn't load it either.
The other 6.0L that finally did 820hp used a small shot of nitrous, and the full life of the rear brakes and rotors to get it. (Was not the dyno operator running the truck)
The dyno operator said that he was at full load...but I don't see how he could have been.
The external wastegate never even started to open on mine, so I knew there was something wrong. It's set at 65 psi. On the street, I see over 60psi of boost, and over 100psi drive pressure even with the gate fully open.
I would have loved to of seen what it would have made fully loaded, and working to its full potential.
Even when I left the show, I tried it on the road, and was able to easily make over 60psi of boost, and the gate functioned properly...
__________________
2003 Ford KingRanch F-350 4x4
793HP fuel only
12.2 @ 113.06mph
If It Ain't Broke...Fix It Until It Is!!!
Last edited by Extended Power; 09-06-2014 at 05:43 PM.
|
|
|
03-05-2015, 11:22 AM
|
#16
|
Name: Tdoorn28
Title: SuperRookie
Status: Not Here
Join Date: Mar 2013
Location: Western Wisconsin
Member`s Gallery
Posts: 26
|
If you're spinning on the rollers its most likely a setup issue. Straps no loading the suspension?
__________________
2001 QCLB, Billet converter, Injectors, HE431VE, Quad Pv2, on Meth
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -5. The time now is 04:12 PM.
|