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Seems you can race dyno's, it nice to see our performance simulations seem pretty accurate.
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LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftKe246XI_SA11000.00.034--4.520----9.53611.607---10988.393
RightBrenda G2p20AA/SA--.0511.4253.901--109.368.0868.086122.28--
Left-- WIN--A/S--.0131.7015.1398.12081.6110.73612.976100.12--
Right--3----.014--4.0645.356--8.47910.271----
Left--1036------1.4604.4687.07993.389.36611.331113.90--
Right--------.097--4.3356.856--9.0599.059117.78--
Without seeing the time slip, hard to tell. [email protected] is ideal.
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
Left--------------------------
RightMichael BrandWIN505BD/SA10.68.0141.4224.2686.73299.228.88210.836109.360.156
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftAl WilsonW201Q/SA13.05-.0311.6995.1488.14781.1410.77813.03099.57-0.02
RightKenneth MieleWIN1656FS/AA8.62-.0191.2773.5865.516126.877.1868.615158.80-0.005
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftKenny AndersonWIN2461G/SA11.15.0181.4574.4096.96995.129.21711.169112.390.019
RightThomas Baker1272D/SA10.73.0771.3854.2396.70998.478.88810.762119.490.032
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftTimothy Stickles1911L/SA11.80.0361.5514.6867.41788.999.81511.893106.770.093
RightJeff StricklandWIN23FS/B9.17.0541.2543.7095.804116.637.6289.208135.020.038
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftJeff Adkinson286FS/C9.28-.0011.3273.8866.020114.697.8739.637118.830.357
RightBrenda GrubbsWIN2020AA/SA9.82.0171.3263.9256.174108.468.1429.824133.220.004
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftRaymond Skipper1364B/SA10.57-.0071.3564.2046.64699.868.77810.592124.000.022
RightBrett SaurbaughWIN3082A/S9.95.0141.4004.0486.316107.758.2919.976133.070.026
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftRachelle Thibert5033K/SA11.84.0811.5024.6427.37089.219.76311.840103.620
RightRonald UrquhartWIN1151F/SA11.02.0291.4204.3486.88296.339.09711.021113.200.001
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftTom Russell34A/S10.02.0121.4404.1106.393106.928.38610.089131.600.069
RightSteve FoleyWIN26FS/A9.31.0271.2773.7625.892114.827.7459.354137.260.044
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftTim BarrettWIN1925G/SA10.98.0931.4154.3436.88395.969.10511.013115.800.033
RightLarry Deforrest52FS/C9.47.0251.2683.8225.999114.177.8869.587124.340.117
LANEDRIVERCAR NO.CLASSDIAL INRT60 FT330 FT660 FT660 FT MPH1000 FTETMPHOV/UN
LeftTimothy FletcherWIN1792H/SA11.30.0161.4314.4397.04393.479.32711.349107.210.049
RightGeorge WarrenW255E/SA10.86.0661.4074.3046.81097.299.00710.898118.210.038


How many 24-25 MPH back half here?
 

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Now you got me curious. I looked up some time sheets... My mild combo SBC gains 23 MPH back half. My old V6 Grand National gained 27 MPH. Gotta love boost.
 

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Discussion Starter · #166 ·
Should make it so the incremental's are easier to read.
They are lifting or on the brakes or both.
Never was a fan of that stuff or throttle stops.:sleep:
They're gearing and stalling appropriately, and using all of the available power where it counts the most for ET...the front half of the track.
 
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They're gearing and stalling appropriately, and using all of the available power where it counts the most for ET...the front half of the track.
Yup but I feel they are still lifting or on the brakes. 1.4 60 is a 10 all day. Plus only 13mph from 1/8 to 1/4.
IMO they are quicker then the dial in.
I’d guess it’s easier on parts and to be more consistent to slow the car down vs flat out every pass.
 

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Yup but I feel they are still lifting or on the brakes. 1.4 60 is a 10 all day. Plus only 13mph from 1/8 to 1/4.
IMO they are quicker then the dial in.
I’d guess it’s easier on parts and to be more consistent to slow the car down vs flat out every pass.
Had a friend that ran an stock eliminator Olds station wagon with a 307 Olds it set numerous records and it was setup to leave hard but it was done by about 800’ would literally float the valves the rest of the way down the track. It ran 12’s and would run 1.40 60’s with the tires a foot in the air, he ran something like a 5.38 gear in the car with a 30” tire.

Brian
 

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Had a friend that ran an stock eliminator Olds station wagon with a 307 Olds it set numerous records and it was setup to leave hard but it was done by about 800’ would literally float the valves the rest of the way down the track. It ran 12’s and would run 1.40 60’s with the tires a foot in the air, he ran something like a 5.38 gear in the car with a 30” tire.

Brian
Wow.
I guess that one way to do it!
 

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Yup but I feel they are still lifting or on the brakes. 1.4 60 is a 10 all day. Plus only 13mph from 1/8 to 1/4.
IMO they are quicker then the dial in.
I’d guess it’s easier on parts and to be more consistent to slow the car down vs flat out every pass.
I've seen 12.0 cars run 1.47 60 @ 3800 pounds.
 

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Ok that’s great but please explain why one would do that?
To get around rules ie no electronics or something?
Seems kinda pointless to gear/converter car for 1/8 and run 1/4 only to float valves for the last 400’.
I’ve seen 10.0 cars run high 11’s too.
 

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Discussion Starter · #172 · (Edited)
Ok that’s great but please explain why one would do that?
To get around rules ie no electronics or something?
Seems kinda pointless to gear/converter car for 1/8 and run 1/4 only to float valves for the last 400’.
I’ve seen 10.0 cars run high 11’s too.
Easy answer, to apply all the power the engine makes as early in the run as possible. This also allows you to run as deep of gear as possible, which multiplies your torque to accelerate the car as quickly as possible. It also maximize the number of power strokes in the run.

Pretty much the exact opposite of what I’m doing.
 

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I get all that.
I ran my current 88 5.7 IROC engine with the 4.30's and was out of breath in 3rd by the 1/8.
I had to shift to 4th to finish the pass.
I give you much more credit for doing it the way you are.
That's why we didn't change the gears in my sons malibu. We left the 3.42's in it.
I knew it had plenty of torque to get it out of the hole and HP on the top end.
 

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Ok that’s great but please explain why one would do that?
To get around rules ie no electronics or something?
Seems kinda pointless to gear/converter car for 1/8 and run 1/4 only to float valves for the last 400’.
I’ve seen 10.0 cars run high 11’s too.
Thats not the case, in this example to set records
Ok that’s great but please explain why one would do that?
To get around rules ie no electronics or something?
Seems kinda pointless to gear/converter car for 1/8 and run 1/4 only to float valves for the last 400’.
I’ve seen 10.0 cars run high 11’s too.




"Ok that’s great but please explain why one would do that?"


At least for the example I will give is to utilize all the available HP, and valve float has nothing to do with my example. Think about this: How much power could a 1985 P/SA truck 350 make for power? Dished beveled pistons, .398 lift cam, unported
624 1.94 valve heads, factory cast iron intake, with a Q-Jet @ 3880 pounds? The 1.47 60 came when I saw the truck run 1.47 60s, the owner say it can run run 11.90s I haven't seen it myself. The truck has run 107 MPH which to me means the numbers add up.
Tire Wheel Vehicle Land vehicle Automotive tire
 

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Thats not the case, in this example to set records






"Ok that’s great but please explain why one would do that?"


At least for the example I will give is to utilize all the available HP, and valve float has nothing to do with my example. Think about this: How much power could a 1985 P/SA truck 350 make for power? Dished beveled pistons, .398 lift cam, unported
624 1.94 valve heads, factory cast iron intake, with a Q-Jet @ 3880 pounds? The 1.47 60 came when I saw the truck run 1.47 60s, the owner say it can run run 11.90s I haven't seen it myself. The truck has run 107 MPH which to me means the numbers add up. View attachment 740131
I meant to say the the 1.47 came on a 12.1 pass.
In my opinion a good leaving car runs:

11.90 high 1.40 60s
10.90 high 1.30 60s which the mph is usually around 118 MPH in the 1320
 

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So which is it, 10 gph or 20 gph per 100hp?

Rule of thumb 10 gph per 100 hp. = 10 gph per 100 hp

To fuel 650 hp aim for 130 gph pump. = 20 gph per 100 hp

Contradicting your self here.
to clear that up:

both at the same time: "Fuel pump rating are free flow and rule of thumb are half of that at working pressure of 6-7 psi."

Means that a pump actually puts out half of its free flow advertised rating when at typical carb pressue.

you need actual 10 gph per 100 hp.

So when fueling 650 horses you need actualy 65 gph.

Provided by a 130 gph (free flow rated ) / 65 gph (actual flow) pump.

Thats why to fuel 650 hp aim for 130 gph pump.
 

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I meant to say the the 1.47 came on a 12.1 pass.
In my opinion a good leaving car runs:

11.90 high 1.40 60s
10.90 high 1.30 60s which the mph is usually around 118 MPH in the 1320
Ok they can use good valve springs and can/do run it to the stripe.
Are they allowed to use trans brakes?
I couldn't find P/SA rules OR P/SA class in general in the NHRA rule book.
A wheelie like the truck you posted off idle or footbrake is pretty impressive. (y)

Your examples of a good leaving cars are they track cars or certain class cars in general?
Our junk never 60' a 1.30 but have went quicker/faster then the examples listed with a slower 60'.
We don't have trans brakes.
Not yet at least.
I really need to learn the NHRA rule book like I know the NEC!
It's just as confusing !
 

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Ok they can use good valve springs and can/do run it to the stripe.
Are they allowed to use trans brakes?
I couldn't find P/SA rules OR P/SA class in general in the NHRA rule book.
A wheelie like the truck you posted off idle or footbrake is pretty impressive. (y)

Your examples of a good leaving cars are they track cars or certain class cars in general?
Our junk never 60' a 1.30 but have went quicker/faster then the examples listed with a slower 60'.
We don't have trans brakes.
Not yet at least.
I really need to learn the NHRA rule book like I know the NEC!
It's just as confusing !
Trans brakes are not used in NHRA stock classes. My NA 327 shop truck leaves wheels up, I never use a trans brake. You need the NHRA classification guide, if you have questions feel free to ask.
 
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The important thing to remember is 107 MPH @ 3880 is 366 crank HP, but a truck is down around 2 MPH from a typical Chevelle, so you could say 385 HP in a 29.3 barometer (Indy) .
 

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Ok they can use good valve springs and can/do run it to the stripe.
Are they allowed to use trans brakes?
I couldn't find P/SA rules OR P/SA class in general in the NHRA rule book.
A wheelie like the truck you posted off idle or footbrake is pretty impressive. (y)

Your examples of a good leaving cars are they track cars or certain class cars in general?
Our junk never 60' a 1.30 but have went quicker/faster then the examples listed with a slower 60'.
We don't have trans brakes.
Not yet at least.
I really need to learn the NHRA rule book like I know the NEC!
It's just as confusing !

10.80s @ 118 MPH. 1.38 60s
 
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