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Re: 420 going on the dyno next couple days [Re: Dragula] #2668007
06/20/19 01:44 PM
06/20/19 01:44 PM
Joined: Feb 2008
Posts: 397
Monrovia, So-Cal, USA
racerhog Offline
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racerhog  Offline
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Monrovia, So-Cal, USA
Nice shot in the air.... Winner Winner Chicken Dinner !!! Well AlMost... smile


Bob(Cowboy)Hogan
Monrovia So-Cal
Re: 420 going on the dyno next couple days [Re: racerhog] #2668062
06/20/19 05:37 PM
06/20/19 05:37 PM
Joined: Jan 2003
Posts: 5,408
SoCal
ou812 Offline
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Yep, at least 20HP down with those tubes....maybe more! What was the TQ?


Brian Hafliger
Re: 420 going on the dyno next couple days [Re: ou812] #2668186
06/20/19 11:20 PM
06/20/19 11:20 PM
Joined: Jun 2003
Posts: 9,192
Charleston
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sixpackgut Offline
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Charleston
Nice. Wondering how high you spun it and did the power linger or drop and at what rpm


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: 420 going on the dyno next couple days [Re: ou812] #2668236
06/21/19 07:33 AM
06/21/19 07:33 AM
Joined: Mar 2018
Posts: 52
Texas
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03heavy Offline
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Texas
What block are you using ?

Re: 420 going on the dyno next couple days [Re: 03heavy] #2668279
06/21/19 10:19 AM
06/21/19 10:19 AM
Joined: Apr 2005
Posts: 809
Delaware
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biff426 Offline OP
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Its a 6.1 block

The power kinda flattened out from 7300 up...…….The reason being its floating the valves. I have to rethink the valve train it will self destruct like this. I have .060 piston to valve on the intake side .100 on the exhaust. Exhaust is fine intake not so much. I have run solid roller stuff at .055 and never had an issue but with .040 preload I think the lifters are pumping up and hanging the valves. The rocker tips look a little funky and the valve tip on the edge looks a little weird. I am thinking I need to shim the lifters solid and run it like a solid roller. The springs are also suspect it has a 2.18 solid stem intake valve (kinda heavy) in my opinion for a beehive spring. Pulling it down to address these issues I used a standard lifter and would rather not go crazy at this point with T&D rockers would rather use the stock rockers (budget) but if I need to prolong the project and buy the T&D stuff I will. What is the general consensus on lifters at this level ? I am pretty sure lifters and springs need to be addressed.

Re: 420 going on the dyno next couple days [Re: pittsburghracer] #2668280
06/21/19 10:21 AM
06/21/19 10:21 AM
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Posts: 809
Delaware
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biff426 Offline OP
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Originally Posted by pittsburghracer
What kind of car is this going in? I can't wait to see track times especially from an East coast track.


It is going in a 65 Coronet

Re: 420 going on the dyno next couple days [Re: biff426] #2668398
06/21/19 03:07 PM
06/21/19 03:07 PM
Joined: Feb 2005
Posts: 14,782
PA.
pittsburghracer Offline
"Little"John
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PA.
Originally Posted by biff426
Originally Posted by pittsburghracer
What kind of car is this going in? I can't wait to see track times especially from an East coast track.


It is going in a 65 Coronet




Very nice. I hope all goes well.


1970 Duster
Edelbrock headed 408
6.143@110.85 mph
9.73@135.05 mph shifting at 6700 RPM
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: 420 going on the dyno next couple days [Re: biff426] #2668441
06/21/19 05:13 PM
06/21/19 05:13 PM
Joined: Jan 2003
Posts: 5,408
SoCal
ou812 Offline
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SoCal
What we do is use a cam with smooth lobes, stay around .615 lift, hollow stem intake valves, Ferrea beehive or LS double spring and Ti retainer. We also use the Johnson lifter and either 20 or 30wt. oil...no more than 30wt.
Also use Manton shafts to keep the rocker motion more stable.


Brian Hafliger
Re: 420 going on the dyno next couple days [Re: ou812] #2668468
06/21/19 06:03 PM
06/21/19 06:03 PM
Joined: Jun 2003
Posts: 9,192
Charleston
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sixpackgut Offline
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What spring are you running? Me and Craig had a long conversation about this a couple weeks ago


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: 420 going on the dyno next couple days [Re: sixpackgut] #2668508
06/21/19 08:37 PM
06/21/19 08:37 PM
Joined: Apr 2005
Posts: 809
Delaware
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biff426 Offline OP
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Originally Posted by sixpackgut
What spring are you running? Me and Craig had a long conversation about this a couple weeks ago


Using the manley 221439 springs. I will say the cam has a fast lobe. I wanted to use the hollow stem valves from the beginning but was convinced to keep the solid stems in the heads, still might put them in. My big concern is the lifter pump up with .060 P/V on the intake side. The exhaust is good over .100. How tight have you guys run these things? It did have 15w40 in it and it did have 100+psi of oil pressure, another concern I was planning to switch to 10w30 or lighter. Has anyone used the crower or isky lifters yet? Are the johnsons worth $750? Just steep for a hyd lifter I think.

Re: 420 going on the dyno next couple days [Re: pittsburghracer] #2668515
06/21/19 08:50 PM
06/21/19 08:50 PM
Joined: Apr 2005
Posts: 809
Delaware
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biff426 Offline OP
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Delaware
Originally Posted by pittsburghracer
Originally Posted by biff426
Originally Posted by pittsburghracer
What kind of car is this going in? I can't wait to see track times especially from an East coast track.


It is going in a 65 Coronet




Very nice. I hope all goes well.

coronet.JPG
Re: 420 going on the dyno next couple days [Re: pittsburghracer] #2668519
06/21/19 08:55 PM
06/21/19 08:55 PM
Joined: Apr 2005
Posts: 809
Delaware
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biff426 Offline OP
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Delaware
Originally Posted by pittsburghracer
Originally Posted by biff426
Originally Posted by pittsburghracer
What kind of car is this going in? I can't wait to see track times especially from an East coast track.


It is going in a 65 Coronet




Very nice. I hope all goes well.


Here is a picture of my 65 and 66 the 66 has a 426 gen 3 6.1 base motor

IMG_3386.jpg
Re: 420 going on the dyno next couple days [Re: biff426] #2668520
06/21/19 08:59 PM
06/21/19 08:59 PM
Joined: Apr 2005
Posts: 809
Delaware
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biff426 Offline OP
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The 66 has 2 carter carbs and a Indy modman with a chrome dome air cleaner and hidden coils. Runs 11.0s on radials through full 3 inch exhaust.

66 engine compartment.JPG
Re: 420 going on the dyno next couple days [Re: biff426] #2668533
06/21/19 09:42 PM
06/21/19 09:42 PM
Joined: Jun 2003
Posts: 9,192
Charleston
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sixpackgut Offline
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Nice car. Crowers are Johnson lifters. I dont know of $750 Johnsons. I plan to run the axle oiled Johnsons in my next motor. They cost about 350.

That spring specs are weaker than PSI1515 that I use. Also, the best part about running Thiteks is using a dual spring.

Last edited by sixpackgut; 06/21/19 09:49 PM.

Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: 420 going on the dyno next couple days [Re: sixpackgut] #2668546
06/21/19 10:49 PM
06/21/19 10:49 PM
Joined: Jan 2003
Posts: 5,408
SoCal
ou812 Offline
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Yep, dual springs, johnson lifter, and either go with a slower lobe, or lighter int. valve...you could even go Ti but you'll need to watch your P/V clearance as the margin on the Ti valves is much thicker.


Brian Hafliger
Re: 420 going on the dyno next couple days [Re: sixpackgut] #2668549
06/21/19 10:54 PM
06/21/19 10:54 PM
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Posts: 809
Delaware
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biff426 Offline OP
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The short travel Johnson's were quoted at $740. maybe I should look around. I would like to talk to Craig about what spring setup works best but I can't find any contact information anywhere.

Re: 420 going on the dyno next couple days [Re: ou812] #2668550
06/21/19 10:56 PM
06/21/19 10:56 PM
Joined: Jan 2012
Posts: 1,256
North America
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hudsonhornet7x Offline
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Originally Posted by ou812
Yep, dual springs, johnson lifter, and either go with a slower lobe, or lighter int. valve...you could even go Ti but you'll need to watch your P/V clearance as the margin on the Ti valves is much thicker.


Sending a PM your way. Thanks

Re: 420 going on the dyno next couple days [Re: biff426] #2668553
06/21/19 11:04 PM
06/21/19 11:04 PM
Joined: Jun 2003
Posts: 9,192
Charleston
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sixpackgut Offline
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Charleston
Originally Posted by biff426
The short travel Johnson's were quoted at $740. maybe I should look around. I would like to talk to Craig about what spring setup works best but I can't find any contact information anywhere.


I really don't get the short travel lifter thing. Just measure for pushrod lenght and get a pushrod .020-.030 longer. Or less. Not sure of the growth amount on these g3 but i assume its around .005

If you have fb you can get Craig on messenger. I have his phone number but it might be his personal number I really don't want to give out

Last edited by sixpackgut; 06/21/19 11:07 PM.

Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: 420 going on the dyno next couple days [Re: sixpackgut] #2668558
06/21/19 11:22 PM
06/21/19 11:22 PM
Joined: Apr 2005
Posts: 809
Delaware
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biff426 Offline OP
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Delaware
I'll try to contact him through Facebook, I can appreciate not giving his number out. My theory is the regular lifter has a bunch of travel, I have .040 preload IF the lifter pumps up my P/V goes to .020. It tagged an intake valve on cyl 5 during one of the pulls. When we pulled it apart the rockers already had some funky scuff marks and so did the valve tip.I was thinking the short travel lifter would reduce the chance of pump up if I had .010 of preload the most I could lose is the .010.

Re: 420 going on the dyno next couple days [Re: sixpackgut] #2668559
06/21/19 11:22 PM
06/21/19 11:22 PM
Joined: Jan 2003
Posts: 5,408
SoCal
ou812 Offline
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I don't use the short travel lifters....


Brian Hafliger
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