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YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! #704880
05/22/10 11:23 AM
05/22/10 11:23 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Taking the ole' GTX into Jake's Automotive next Tuesday for a front-end alignment,and long-awaited dyno-tune session! What are your guesstimates on HP and Tq.? X weighs 3740,race weight,and runs 11.19-11.30 @ 120mph. Motor's a '70' +.040 440 block,10:25:1 Diamond Forged pistons,OTB Eddy Performers,Comp SQ solid flat tappet with .610 lift and 260/266 @ .050 duration,105 installed centerline. M-1 intake,and 850 Holley DP. Headers are 2" TTI's, 3.5 collectors. Any estimates??? Thanks in advance! RandyB

5996877-GTX@MILAN.jpg (65 downloads)
Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Labratt] #704881
05/22/10 11:42 AM
05/22/10 11:42 AM
Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
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blownzoom440 Offline
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ELYRIA,OH
from wallace calc.
Your HP computed from your vehicle ET is 473.53 rear wheel HP and 526.14 flywheel HP.
Your HP computed from your vehicle MPH is 465.79 rear wheel HP and 517.55 flywheel HP.

have fun at the tuner.i hope it goes well.

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: blownzoom440] #704882
05/22/10 12:33 PM
05/22/10 12:33 PM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Thanks,Mike! Sounds like those heads need to come off this winter and taken to Modern for a CNC port job! Or..I could send them up to Dwayne, in Vermont!

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Labratt] #704883
05/22/10 12:46 PM
05/22/10 12:46 PM
Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
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blownzoom440 Offline
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ELYRIA,OH
if you are happy with how fast you are going it is just a #.

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: blownzoom440] #704884
05/22/10 01:06 PM
05/22/10 01:06 PM
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440 Offline
I Live Here
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Posts: 10,766
Central Valley, CA.
Quote:

from wallace calc.
Your HP computed from your vehicle ET is 473.53 rear wheel HP and 526.14 flywheel HP.
Your HP computed from your vehicle MPH is 465.79 rear wheel HP and 517.55 flywheel HP.

have fun at the tuner.i hope it goes well.




comparing what I've seen on the dyno....those numbers are right on what I would expect on realistic dyno.

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Labratt] #704885
05/22/10 01:17 PM
05/22/10 01:17 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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Posts: 52,972
Romeo MI
Randy you need to work on the chassis... a 120 pass
should be 11.0... so your making enough power for 11.0

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: MR_P_BODY] #704886
05/22/10 01:23 PM
05/22/10 01:23 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
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Thumperdart Offline
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State of confusion
Quote:

Randy you need to work on the chassis... a 120 pass
should be 11.0... so your making enough power for 11.0



Unless he`s spinning....


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Thumperdart] #704887
05/22/10 01:42 PM
05/22/10 01:42 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

Quote:

Randy you need to work on the chassis... a 120 pass
should be 11.0... so your making enough power for 11.0



Unless he`s spinning....




Would still be in the chassis... if the chassis is
right he wouldnt spin... if he is... unless the tires
are shot
EDIT
But I forget what gear Randy is running... which
will make a difference also

Last edited by MR_P_BODY; 05/22/10 01:51 PM.
Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: MR_P_BODY] #704888
05/22/10 02:56 PM
05/22/10 02:56 PM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Raff,I'm running a 4:56 gear,which I was thinking of swapping with my 4:10!?? Tires & Slicks are 30" tall. Trap rpm(quarter mile)is 6500-6600. Trap rpm with 4:10 was 5900-6000.

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Labratt] #704889
05/22/10 08:34 PM
05/22/10 08:34 PM
Joined: Sep 2006
Posts: 1,440
central ohio
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nss guy Offline
pro stock
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pro stock
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Joined: Sep 2006
Posts: 1,440
central ohio
I'm betting right at 500hp rear wheel

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Labratt] #704890
05/22/10 08:48 PM
05/22/10 08:48 PM
Joined: Feb 2005
Posts: 4,309
Prospect, PA
BSB67 Offline
master
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Posts: 4,309
Prospect, PA
What kind of dyno, and corrected or actual hp?

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: BSB67] #704891
05/22/10 09:37 PM
05/22/10 09:37 PM
Joined: Jun 2009
Posts: 705
Michigan
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Hemiroid Offline
super stock
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super stock
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Posts: 705
Michigan
Randy, please post your experience there. I'm considering taking mine over there, heard some good things about Jakes

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Hemiroid] #704892
05/22/10 10:18 PM
05/22/10 10:18 PM
Joined: Nov 2004
Posts: 7,274
s.w.fl
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bonefish Offline
master
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s.w.fl
did ya get the new seats in it?that should be worth 15-20 hp

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: bonefish] #704893
05/22/10 10:36 PM
05/22/10 10:36 PM
Joined: Jul 2005
Posts: 1,472
Overland Park, KS.
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Joshs68 Offline
pro stock
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Posts: 1,472
Overland Park, KS.
Is that weight with or without the driver?

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Joshs68] #704894
05/22/10 10:44 PM
05/22/10 10:44 PM
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Sport440 Offline
master
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Posts: 6,591
Canton, Ohio
Id say 560 to 575 at the crank. 120 MPH is good for about a 11.10

Your going to need at leat a 122 MPH for a 10.99, Unless you can pull off a 1.47 60 ft. or so. mike

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Sport440] #704895
05/23/10 01:01 AM
05/23/10 01:01 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Anybody know where I can pick up 2 mph? Carb spacers? Bigger carb? Sealing off the carb to hood scoop? Josh, the weight is WITH driver and gas! RACE READY. Bonefish,still waiting on those 15hp seats to arrive! Maybe,I can pick up enough power on the dyno to put me in the 10's!? We'll see! Marc,I plan on posting the dyno results tuesday night! Mike,thanks for your guess! Where did you get your 560-575hp figure? I used the Mopar Performance Engine Manual HP Calculator a while back,and I believe I got REAL close to your 560-575 number!!! Thanks Guys! RandyB

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Labratt] #704896
05/23/10 02:17 AM
05/23/10 02:17 AM
Joined: Jul 2005
Posts: 384
Australia
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Mcode69 Offline
enthusiast
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Joined: Jul 2005
Posts: 384
Australia
Getting some cold air into it sounds like your best bet, that's got to be worth a couple of MPH.
Good luck.

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Mcode69] #704897
05/23/10 04:14 AM
05/23/10 04:14 AM
Joined: May 2004
Posts: 3,210
robin hood country
deaks Offline
master
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Posts: 3,210
robin hood country
Head port and mill a little off them to get your comp up to around 11.1.
Mick

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: Labratt] #704898
05/23/10 07:48 AM
05/23/10 07:48 AM
Joined: Jun 2005
Posts: 793
Utah
topbrent Offline
super stock
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super stock

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Posts: 793
Utah
Quote:

Anybody know where I can pick up 2 mph?




CNC porting by Jeff @ Modern Cylinder Head.
- Send him your intake, also.

Re: YET ANOTHER HOW MUCH DOES IT MAKE QUESTION!!! [Re: topbrent] #704899
05/23/10 08:24 AM
05/23/10 08:24 AM
Joined: Jan 2010
Posts: 184
Bad Axe,MI
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EDDIEB Offline
member
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Joined: Jan 2010
Posts: 184
Bad Axe,MI
HI Randy,I had my 69 roadrunner there last year great guys,I have a 471 with a six pac cnc eddy's by Jeff and 590ish bullet cam with 260 ish dur@50 and I made 460 at rear wheels.
My best run last year was 11.09 @123 with a 1.58 60 ft.
I switched to a 4 barrl this year hoping to use the head work with a single plane intake and 1000 pro systems carb,but haven't made it to the track yet.
Let us know how it goes
EDDIE B

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