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Old 05-24-2017, 11:06 AM   #1
superd54
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Thumbs up PDRA to allow 50% Nitro, Injected Nitro PM's

And Roots with 1471, rumor has it, @ PDRA.
Final rules by June 6th.

Dave.
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Old 05-24-2017, 11:49 AM   #2
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

ADRL allowed the same on roots combos in PX back in the day.
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Old 05-24-2017, 01:05 PM   #3
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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Originally Posted by VegaEddie View Post
ADRL allowed the same on roots combos in PX back in the day.

Back in the day I ran ADRL P/X 20% Nitro with a roots, it was fun.
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Old 05-24-2017, 01:08 PM   #4
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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ADRL allowed the same on roots combos in PX back in the day.
Realistically, how many cars are they going to add with this? Maybe two?
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Old 05-24-2017, 01:17 PM   #5
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

I don't think it'll add many. Might be cool to hear a little cackle in PX though. Adding even one or two is a good thing considering how few cars there seems to be in PX these days.
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Old 05-24-2017, 01:19 PM   #6
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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Back in the day I ran ADRL P/X 20% Nitro with a roots, it was fun.
Mike, how quick was the combo back then and how quick do you think a well sorted out nitro/roots combo would go now?
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Old 05-24-2017, 01:31 PM   #7
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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Mike, how quick was the combo back then and how quick do you think a well sorted out nitro/roots combo would go now?
I think it was 3.84 and the bump was 3.82 so we never made into the show with it. I think low 50s eventually.
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Old 05-24-2017, 01:50 PM   #8
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Smile Re: PDRA to allow 50% Nitro, Injected Nitro PM's

That would be cool!

Dave...

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Originally Posted by mike recchia View Post
I think it was 3.84 and the bump was 3.82 so we never made into the show with it. I think low 50s eventually.
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Old 05-24-2017, 02:19 PM   #9
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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I think it was 3.84 and the bump was 3.82 so we never made into the show with it. I think low 50s eventually.
Thanks, Mike. Low 50s would put that combo right in the mix!
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Old 05-24-2017, 04:02 PM   #10
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

I have no experience to back this up but those who played with Nitro coupes, outlaw fuel altereds, etc., have told me the first 10% nitro makes a big difference and really helps up to 30%.

While it doesn't make a lot of sense, I have been told by more than one person that there isn't much gain from 30%-80%.

Old wives tale or fact? I don't know.
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Old 05-24-2017, 04:02 PM   #11
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

I got to drive Wayne torkelsons's nitro coupe 2007 or so we ran 20 to 25% car was set up for 1/4 mile it ran 4.00 to the 1/8 only 178 this was a super chevy deal so it was not on kill to hurt parts.It had tons left in it ,and the car was 2700 lbs normal for back in the day lol blown nitro worked good to 30% then again at 80% or more. Between 30 and 80 the window for not hurting parts is shut .
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Old 05-24-2017, 04:09 PM   #12
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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Originally Posted by TAFC425 View Post
I have no experience to back this up but those who played with Nitro coupes, outlaw fuel altereds, etc., have told me the first 10% nitro makes a big difference and really helps up to 30%.

While it doesn't make a lot of sense, I have been told by more than one person that there isn't much gain from 30%-80%.

Old wives tale or fact? I don't know.
The 25 % deal we could run a bad 5 shift 8700 about 9000 thru the lights and not hurt a thing on the motor think we pinched one top ring. Bearings always looked good. Had no timing management 33 degrees locked on the mag. Did all wheel speed management with the clutch sometimes taking off .025 a run lol


30 to 80% lots of broken parts !!!!!!!
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Last edited by Jim Wiens; 05-24-2017 at 04:11 PM.
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Old 05-24-2017, 04:10 PM   #13
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

To add to this, I think an A/Fuel or Nostalgia style combo would be much easier to implement. Someone could at least buy a proven engine combo and tuner and feel like they have a reasonable chance of not scattering parts.

When Nitro throws a fit, it throws a big one. Sometimes could be described as "spectacular."

Alot of things have changed since the old nitro coupe combos 20 years ago. I'm sure that would be the starting point.

I would think a nostalgia FC engine with a Pro Mag (and maybe more pump) could be a quicker and more viable path to being competitive in PB or PX. The full on "Big Show" nitro motor like Palmer done is definitely cool but well outside the realm of what most people could do.
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Old 05-24-2017, 04:20 PM   #14
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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Originally Posted by TAFC425 View Post
To add to this, I think an A/Fuel or Nostalgia style combo would be much easier to implement. Someone could at least buy a proven engine combo and tuner and feel like they have a reasonable chance of not scattering parts.

When Nitro throws a fit, it throws a big one. Sometimes could be described as "spectacular."

Alot of things have changed since the old nitro coupe combos 20 years ago. I'm sure that would be the starting point.

I would think a nostalgia FC engine with a Pro Mag (and maybe more pump) could be a quicker and more viable path to being competitive in PB or PX. The full on "Big Show" nitro motor like Palmer done is definitely cool but well outside the realm of what most people could do.
A/F( injected) needs 90 minimum to work and like a blown Nostalgia style set up is going to need clutch serviced pan dropped maybe heads pulled every run not a fun deal for an adrl race
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Old 05-24-2017, 04:48 PM   #15
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Default Re: PDRA to allow 50% Nitro, Injected Nitro PM's

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Originally Posted by TAFC425 View Post
The full on "Big Show" nitro motor like Palmer done is definitely cool but well outside the realm of what most people could do.
Just out of curiosity, what do you guys think a full on nitro combo would do in a PX style door car? Realistically speaking. 1/8 or 1/4.
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