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Re: Mid to low 11s on pump gas? [Re: 67mprfan] #2895499
03/04/21 07:17 AM
03/04/21 07:17 AM
Joined: Nov 2020
Posts: 348
Isle of Sheeps
Gtxxjon Offline
enthusiast
Gtxxjon  Offline
enthusiast

Joined: Nov 2020
Posts: 348
Isle of Sheeps
Loving this thread!

A genuine effort to 'keep in real' in this mad, mad world lol.
You can run an 11.50 all day long with a 440ci and drive it home, that has never changed...

So now we have the 'problem' of unlimited choice!
I like the 'less is more' kinda deal myself.

I have a 71 GTX that hopefully one-day-soon I can run in UK Superstock.
I will be 'keeping it real' unlike some of the current Superstocks with 572 KB hemi's... catfight

11.50 is my aim with a 451ci motor with iron heads probably 452's and an iron sixpack.
Yep thats 'keeping it real' in my 'booky wook' lol... drive

ps I have a 512ci with Indy heads as a back-up, just in case... whistling

Last edited by Gtxxjon; 03/04/21 07:21 AM.

Carpe diem, quam minimum credula postero, thanx Horace!

There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...
Re: Mid to low 11s on pump gas? [Re: 67mprfan] #2895612
03/04/21 12:37 PM
03/04/21 12:37 PM
Joined: Jan 2003
Posts: 17,801
S.E. Michigan
ZIPPY Offline
I Live Here
ZIPPY  Offline
I Live Here

Joined: Jan 2003
Posts: 17,801
S.E. Michigan
Originally Posted by 67mprfan






Hello zippy how did those 2in super comp headers fit using your low deck block.... Thanks [/quote]

The right side was ok, the left side had one tube making contact with the torsion bar, not super hard to resolve....that's the only deficiency I can remember.
I changed a few things besides that on them, worked on the flanges a little bit and had them coated. They've been installed on the car for nearly 20 years.

The car is up on the hoist with about 1/3 of the sheetmetal cut off of it right now, but I might be able to get a picture or two if it will help you. Let me know.
------------------

Edit, ok bad memory, both sides had torsion bar contact on one tube. separate post with pics to help 67. Not super difficult to correct, not super easy either, but at 1/3 the price of tti no problem.

Last edited by ZIPPY; 03/10/21 10:59 AM.

Rich H.

Esse Quam Videri




Re: Mid to low 11s on pump gas? [Re: ZIPPY] #2895977
03/05/21 10:45 AM
03/05/21 10:45 AM
Joined: Jan 2003
Posts: 4,296
Chicago, IL
TonyS451 Offline
master
TonyS451  Offline
master

Joined: Jan 2003
Posts: 4,296
Chicago, IL
Originally Posted by ZIPPY
Your plan will work out just fine, and what you're shooting for is a very solid 11 second kind of a street/strip deal.

My '69 GTX is a getting little bit dated but still runs well and is along the same lines.

451ci (400 B engine based, but really close enough to a .055 or .060 over 440 for comparison sake)
10.75:1
RPM heads, minor prep (backcut valves, blended port openings slightly)
PRH/Comp .630/262-266 solid roller
Victor 383 intake prepped at home, 1000/4150 race demon
2" supercomps/mufflers/X pipe exhaust I fabbed in my Dad's driveway

The converter I have is somewhat "wrong" for the combination, it was originally made for a 572 Wedge
A body race application, and is too tight for mine for racing but it drives really nice on the street so I've left it alone.

4.10 Dana with a Power Lock.

Most of the time it went 11.20s and 11.30s around 120.
11.0 @ 123 best ever (three times same day) and for whatever reason I haven't been able to do it again.

Peak power rpm is about 6200/chassis dyno, pretty close to what you were looking for.

Later I tried a 950 Quick Fuel Brawler and it ran about the same ET as before
but feels quite a bit snappier on the street. Only had it to the track once with that carb
and it went 7.15, 7.16, 7.17, 7.17 that day (so basically 11-teens to 20s).

TBH the only outdated item you're thinking about is the M1, and it's still a pretty darn good piece.
I'm sure a TFS or prepped Victor would pick up a little bit but nothing earth shattering.



Below is an old picture...Old time Moparts people will recognize it from many years ago.....
It wasn't long after this shot we had to intall a roll bar. You will too! Good luck


This is one of my favorite Moparts cars of all time! Classic Mopar muscle/street brawler. Zippy, you nailed this combo


2 kids and a dog
Re: Mid to low 11s on pump gas? [Re: TonyS451] #2895988
03/05/21 11:12 AM
03/05/21 11:12 AM
Joined: Dec 2013
Posts: 4,651
Wichita
G
GY3 Offline
master
GY3  Offline
master
G

Joined: Dec 2013
Posts: 4,651
Wichita
Originally Posted by TonyS451
Originally Posted by ZIPPY
Your plan will work out just fine, and what you're shooting for is a very solid 11 second kind of a street/strip deal.

My '69 GTX is a getting little bit dated but still runs well and is along the same lines.

451ci (400 B engine based, but really close enough to a .055 or .060 over 440 for comparison sake)
10.75:1
RPM heads, minor prep (backcut valves, blended port openings slightly)
PRH/Comp .630/262-266 solid roller
Victor 383 intake prepped at home, 1000/4150 race demon
2" supercomps/mufflers/X pipe exhaust I fabbed in my Dad's driveway

The converter I have is somewhat "wrong" for the combination, it was originally made for a 572 Wedge
A body race application, and is too tight for mine for racing but it drives really nice on the street so I've left it alone.

4.10 Dana with a Power Lock.

Most of the time it went 11.20s and 11.30s around 120.
11.0 @ 123 best ever (three times same day) and for whatever reason I haven't been able to do it again.

Peak power rpm is about 6200/chassis dyno, pretty close to what you were looking for.

Later I tried a 950 Quick Fuel Brawler and it ran about the same ET as before
but feels quite a bit snappier on the street. Only had it to the track once with that carb
and it went 7.15, 7.16, 7.17, 7.17 that day (so basically 11-teens to 20s).

TBH the only outdated item you're thinking about is the M1, and it's still a pretty darn good piece.
I'm sure a TFS or prepped Victor would pick up a little bit but nothing earth shattering.



Below is an old picture...Old time Moparts people will recognize it from many years ago.....
It wasn't long after this shot we had to intall a roll bar. You will too! Good luck


This is one of my favorite Moparts cars of all time! Classic Mopar muscle/street brawler. Zippy, you nailed this combo


X2!


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Mid to low 11s on pump gas? [Re: GY3] #2896075
03/05/21 02:12 PM
03/05/21 02:12 PM
Joined: Jan 2003
Posts: 17,801
S.E. Michigan
ZIPPY Offline
I Live Here
ZIPPY  Offline
I Live Here

Joined: Jan 2003
Posts: 17,801
S.E. Michigan
Originally Posted by GY3
Originally Posted by TonyS451
Originally Posted by ZIPPY
Your plan will work out just fine, and what you're shooting for is a very solid 11 second kind of a street/strip deal.

My '69 GTX is a getting little bit dated but still runs well and is along the same lines.

451ci (400 B engine based, but really close enough to a .055 or .060 over 440 for comparison sake)
10.75:1
RPM heads, minor prep (backcut valves, blended port openings slightly)
PRH/Comp .630/262-266 solid roller
Victor 383 intake prepped at home, 1000/4150 race demon
2" supercomps/mufflers/X pipe exhaust I fabbed in my Dad's driveway

The converter I have is somewhat "wrong" for the combination, it was originally made for a 572 Wedge
A body race application, and is too tight for mine for racing but it drives really nice on the street so I've left it alone.

4.10 Dana with a Power Lock.

Most of the time it went 11.20s and 11.30s around 120.
11.0 @ 123 best ever (three times same day) and for whatever reason I haven't been able to do it again.

Peak power rpm is about 6200/chassis dyno, pretty close to what you were looking for.

Later I tried a 950 Quick Fuel Brawler and it ran about the same ET as before
but feels quite a bit snappier on the street. Only had it to the track once with that carb
and it went 7.15, 7.16, 7.17, 7.17 that day (so basically 11-teens to 20s).

TBH the only outdated item you're thinking about is the M1, and it's still a pretty darn good piece.
I'm sure a TFS or prepped Victor would pick up a little bit but nothing earth shattering.



Below is an old picture...Old time Moparts people will recognize it from many years ago.....
It wasn't long after this shot we had to intall a roll bar. You will too! Good luck


This is one of my favorite Moparts cars of all time! Classic Mopar muscle/street brawler. Zippy, you nailed this combo


X2!




I'm feeling the love!

Thank you Gentlemen.

I always felt it had a 10 in it, but over time I began to believe "maybe not in this car, with me attempting/failing to tune the chassis".
Once I got to that point I just decided to enjoy it.






Rich H.

Esse Quam Videri




Re: Mid to low 11s on pump gas? [Re: ZIPPY] #2897618
03/10/21 05:26 AM
03/10/21 05:26 AM
Joined: Nov 2008
Posts: 20
est
H
huimerind Offline
member
huimerind  Offline
member
H

Joined: Nov 2008
Posts: 20
est
You don't need anything fancy for 11 sec

446ci
stock block
stock cast crank
stock LY rods
cast .030" pistons
452 heads, decks milled, no valve job
comp 252/260 flat tappet cam
1.6 speedmaster rocker arms
edelbrock rpm intake
1050 dominator
1.75" to 3.5"headers, bullet mufflers
727
4.56
3700-3750lbs truck

1.58 60'
11.72 @ 111mph

I think it will go 11.4-11.5

Re: Mid to low 11s on pump gas? [Re: huimerind] #2897629
03/10/21 08:46 AM
03/10/21 08:46 AM
Joined: Oct 2015
Posts: 570
UK
rb446 Offline
mopar
rb446  Offline
mopar

Joined: Oct 2015
Posts: 570
UK
Well you will have exactly what we are running in our street driven to the track and home on full exhausts '69RR, caltracs/mono's, Dana 4.10, 29"tyres, we run a street 3600-4200 converter and we run an old 950HP carb, 2.1/8" TTI's but thats cos we run a mild street 10:1cr 589ci wedge motor we picked up all built/dyno'd to a best of 10.3@3800lbs. Your obviously not going to do that for 10k, to go 11.45'@117 ish you need an honest 500hp, so 550 on a dyno, that can be done with a 440 with 240's and an sft cam or even eddys but as you are going for rods/pistons you could build a stroker for not a lhuge amount more cost but its not necessary as a lot have eluded to in this post, but as racers we all want to go faster. Have a look at the TF 446ci build they did and supposedly got 620hp@10.5:1 with a hyd. roller, 247@.050 .600", 950 carb, 240's etc.

Really depends on what your aim is after you've blitzed the mid to low 11 sec brkt. The bigger the motor you build the more torque it will have of course and won't be so much fun on the street as you won't be able to get into it without annihilating the tyres all the time unless you run DOT race tyres. That TF240 build could get you in the 10.7's@124 at around the 6300 trap rpm with 4.10/29" tyre if that dyno no. was anywhere correct, something to think about on those lines perhaps, a lot of options with lots of different opinions, you just gotta realize what your real goal is and then build it to achieve that. twocents

Last edited by rb446; 03/10/21 12:20 PM.

1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
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