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Re: Moparts official power adder thread
[Re: n20mstr]
#2024683
03/04/16 08:48 PM
03/04/16 08:48 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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NOS doublecross plate jetted 65x2 N, 53x2 F, 6 psi fuel, 23° timing, C12 fuel. Have not even begun to tune it from this baseline.
start leaning it out, drop the fuel psi and timing . then watch it pick up some mph That's really a little shy of 250Hp and is probably a good bit on the rich side of a razor sharp tune. Has some left assuming converter is right. If getting it on quicker forces the car to pick the front up, you actually need to get after it MUCH harder, as well as putting some weight on the nose As far as comparing to car I referenced, there is no comparison. We have a very heavy big inch HEMI, against a 3000lb mediocre small block Nova.
Last edited by Monte_Smith; 03/04/16 08:50 PM.
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Re: Moparts official power adder thread
[Re: FastmOp]
#2024772
03/04/16 11:16 PM
03/04/16 11:16 PM
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Joined: Feb 2012
Posts: 368
michigan
turbo toad
enthusiast
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enthusiast
Joined: Feb 2012
Posts: 368
michigan
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My top ring is total seal PN 100098
My 2nd is PN 002629
I called total seal and told the it's a street driving big block with 30 pounds of boost lol Thanks FastmOp Lets hope this sticky keeps steam and rolling along I always enjoy learning 
Last edited by turbo toad; 03/04/16 11:58 PM.
Check out my build on Facebook Ttoad Hurley its updated regularly
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Re: Moparts official power adder thread
[Re: 72sat]
#2026363
03/07/16 10:47 AM
03/07/16 10:47 AM
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Joined: Feb 2005
Posts: 20,279
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,279
PA.
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is there a way to split these up into separate groups. I love any and all power adders. but I'm not so smart. would love to keep each adder separate just to keep it a little simpler. there is definitely enough interest, can somebody help make this right???? This website can't support 1 power adder sticky and will probably go away. Ted was nice enough to give it a try but with only 1600 hits so far it will probably go away. Hits mean traffic, traffic means advertising dollars to help support the site. I think some guys would be surprised to see the cost and time it takes to keep a site like this up and running. Thanks go out to Tom and all the Mods.
Last edited by pittsburghracer; 03/07/16 10:48 AM.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.38@138.67
Livin and lovin life one day at a time
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Re: Moparts official power adder thread
[Re: tboomer]
#2026380
03/07/16 11:10 AM
03/07/16 11:10 AM
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Joined: Jan 2003
Posts: 13,535
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,535
Marion, South Carolina [><]
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Ian...my combo is a 572" pump gas hemi (800+ hp N/A), 727 trans (footbraking), 4.10 Dana w/ Cal-Tracs and drag radials. The car weighs about 3900 lbs.
The car is set up to run the 1/4. Best N/A pass is 6.05 at 112.9 mph in the 1/8 and 9.54 at 140.4 mph in the 1/4. That was in good air.
best on spray so far is the 8.95 at 149.7 and 5.71 at 121.6 in the 1/8. The air was not too great when I ran that night, but not sure it matters a whole lot when using nitrous.
The converter seems to be on the tight side. I had my converter guy build me one specifically for nitrous, 9" spragless. Seems to have around 6% slip up top. Surprisingly, the 4.10 gear seems to be OK through the 1/4 on the nitrous. Crosses the strip at about 7400.
I'm hoping the switch from the -4 feed to the bigger -6 will help somewhat. Bottle's in the trunk so there's 14 feet of feed line. That much -4 line has to be restrictive?
I have not tried less than 3 tenths delay on the hit. I had it nearly go on the bumper the first night I ran it w/ the new D/A shocks. Got them to where the car is leaving good now w/ the 3 tenth delay. I just have a digiset, no progressive.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 4 speed, Dana 60
'71 Demon 340, no drivetrain, on blocks behind the barn
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Moparts official power adder thread
[Re: 72sat]
#2026417
03/07/16 11:52 AM
03/07/16 11:52 AM
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Joined: Dec 2003
Posts: 23,532
Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,532
Here
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is there a way to split these up into separate groups. I love any and all power adders. but I'm not so smart. would love to keep each adder separate just to keep it a little simpler. there is definitely enough interest, can somebody help make this right???? I agree, and I understand that "traffic" is the main goal seldom talked about goal here, but seems to me lumping all power adders together serves little purpose to the followers, like combining auto and manual transmissions in one thread. Its enough hassle IMO sorting thru the unrelated stuff that it actually reduces the highly sought after "traffic", and that leads to the widely predicted demise. Not separating is half hearted. I fully admit there may not be enough interest in the first place, but not done well, it just leads to failure. 
"When one’s appeal is emotional, it does not matter if there is no substance."
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Re: Moparts official power adder thread
[Re: jcc]
#2026908
03/07/16 11:29 PM
03/07/16 11:29 PM
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Joined: Dec 2003
Posts: 23,532
Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,532
Here
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What size line is best for pressure measurements/gauges on both hot and cold side for a turbo? 1/8" Tubing? Does it matter or effect response time, if it can even be seen by eye?
"When one’s appeal is emotional, it does not matter if there is no substance."
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Re: Moparts official power adder thread
[Re: tboomer]
#2027090
03/08/16 09:44 AM
03/08/16 09:44 AM
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Joined: Feb 2003
Posts: 1,942
Metro Detroit
OUTLAWD
top fuel
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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for steady-state dyno work, we use 1/4" line.
For any high speed measurements we use direct mount transducers with cooled adapters that sample every 0.1-1 crank angle degrees. This is probably outside the requirements and budget, however.
Anyone using turbo speed sensors at the track? I doubt the sizing is that close to the limit of what most are doing, just be interesting to see...
Last edited by OUTLAWD; 03/08/16 09:45 AM.
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts
66 Belv. II - just a streetcar
88 Mustang - turbo LS beater
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Re: Moparts official power adder thread
[Re: tboomer]
#2027217
03/08/16 01:49 PM
03/08/16 01:49 PM
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Joined: Feb 2012
Posts: 368
michigan
turbo toad
enthusiast
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enthusiast
Joined: Feb 2012
Posts: 368
michigan
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I use 1/4 line as well with either a pushloc or compression fittings for easy removal.
Reference points may very to some degree but off the top of my head
Wastegate (below TB/CARB)
Fuel pressure regulator (carb hat preferable toward the back of the hat where a clean sweep into the inlet of the carb/tb)
Boost vacuum gauge (intake runner)
Blow off valve (below the TB/CARB)
MAP sensor for msd 6al (below the TB/CARB)
Tigger sensor for my ams500 wastegate controller (carb hat) its on a pressure switch much like a hobbs switch
This was how my slant was setup and ill follow close to that same pattern on my twin setup. When i refer to below the carb/thorttle body im refering to the plenum inlet aera
Hope this helps
Last edited by turbo toad; 03/08/16 07:32 PM.
Check out my build on Facebook Ttoad Hurley its updated regularly
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Re: Moparts official power adder thread
[Re: turbo toad]
#2027330
03/08/16 05:08 PM
03/08/16 05:08 PM
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Joined: Jan 2003
Posts: 1,365
elmira ny
hp340nos
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,365
elmira ny
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looking for some jetting for a nos cheater plate,im currently running a .055n/.045f,, 5 psi flowing through flow tool,and 30*timing total. on pump gas in a 340 stroker 9.8 comp iron head street/strip motor. gap at what would be the next step up in jets for horsepower.current plugs are champion rc9yc.at .030 gap.msd 6al box with the dialback timing box hooked to it.i always db check it on balancer when using the dialback.thanks mike
Last edited by hp340nos; 03/08/16 05:11 PM.
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Re: Moparts official power adder thread
[Re: an8sec70cuda]
#2027610
03/08/16 11:20 PM
03/08/16 11:20 PM
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Joined: Jan 2009
Posts: 1,044
Victoria, Australia
Ian
super stock
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super stock
Joined: Jan 2009
Posts: 1,044
Victoria, Australia
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Ian...my combo is a 572" pump gas hemi (800+ hp N/A), 727 trans (footbraking), 4.10 Dana w/ Cal-Tracs and drag radials. The car weighs about 3900 lbs.
The car is set up to run the 1/4. Best N/A pass is 6.05 at 112.9 mph in the 1/8 and 9.54 at 140.4 mph in the 1/4. That was in good air.
best on spray so far is the 8.95 at 149.7 and 5.71 at 121.6 in the 1/8. The air was not too great when I ran that night, but not sure it matters a whole lot when using nitrous.
The converter seems to be on the tight side. I had my converter guy build me one specifically for nitrous, 9" spragless. Seems to have around 6% slip up top. Surprisingly, the 4.10 gear seems to be OK through the 1/4 on the nitrous. Crosses the strip at about 7400.
I'm hoping the switch from the -4 feed to the bigger -6 will help somewhat. Bottle's in the trunk so there's 14 feet of feed line. That much -4 line has to be restrictive?
I have not tried less than 3 tenths delay on the hit. I had it nearly go on the bumper the first night I ran it w/ the new D/A shocks. Got them to where the car is leaving good now w/ the 3 tenth delay. I just have a digiset, no progressive.
thanks that gives me a better understanding whats going on with your combo .the next thing i would look at is front end travel and stiffness and the rate of extension on the front ,i have changed mine to keep the front down on the hit and screw the hit earlier.
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Re: Moparts official power adder thread
[Re: Ian]
#2028002
03/09/16 04:56 PM
03/09/16 04:56 PM
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Joined: Jan 2003
Posts: 13,535
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,535
Marion, South Carolina [><]
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Ian...my D/A shocks are a little shorter than my old shocks so I lost about an inch of travel. Between that and tightening up the extension I was able to get the car to leave VERY nicely last time out. Came up about a foot and carried it about 100 feet out.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 4 speed, Dana 60
'71 Demon 340, no drivetrain, on blocks behind the barn
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Moparts official power adder thread
[Re: birdtracker]
#2028003
03/09/16 04:58 PM
03/09/16 04:58 PM
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Joined: Jan 2003
Posts: 13,535
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,535
Marion, South Carolina [><]
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Do nitrous motors like compression? Birdtracker The higher the compression, the smaller your tuning window gets...easier to hurt stuff. Seems like most dedicated nitrous motor stick around 13:1.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 4 speed, Dana 60
'71 Demon 340, no drivetrain, on blocks behind the barn
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Moparts official power adder thread
[Re: jcc]
#2028101
03/09/16 07:55 PM
03/09/16 07:55 PM
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Joined: Nov 2006
Posts: 2,265
IL
furious70
top fuel
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top fuel
Joined: Nov 2006
Posts: 2,265
IL
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What size line is best for pressure measurements/gauges on both hot and cold side for a turbo? 1/8" Tubing? Does it matter or effect response time, if it can even be seen by eye? I use copper oil psi line and gauge to measure hot side back pressure. This was suggested to me by my 'build mentor' The gauge bounces a lot until you pour the coals to it but I got nice steady reading at the upper rpm range this way. I found out just how small my Ford SVO turbos were that way and moved up to some Precisions that have a much more friendly ~2:1 ratio (for my big heavy street car I'm fine with that in order to get the responsiveness I want)
70 Sport Fury
68 Charger
69 Coronet
72 RR
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Re: Moparts official power adder thread
[Re: furious70]
#2028350
03/10/16 03:38 AM
03/10/16 03:38 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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A smaller feed line will always respond quicker BUT it can also have a lot of jump in the gauge if your using a gauge... a transducer is much better and faster if your using a data logger.. some of the stuff I was using had a rate of 800 reads per second and there is faster stuff now.. if you want to get rid of the jumping gauge you can put a small orifice in the gauge to smooth out the reading.. but it will slow it down 
Last edited by MR_P_BODY; 03/10/16 03:39 AM.
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