Moparts Main Index | READ - Info & Help Page | Moparts Sponsors | Tech Archive

Forums Calendar Active Threads Search Forum Help
Previous Thread
Next Thread
Print Thread
Page 1 of 6 1 2 3 4 5 6
Build me 850 HP in most economical package #1069941
09/05/11 09:34 PM 09/05/11 09:34 PM
Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
wheelsup68dart Offline OP
master
wheelsup68dart  Offline OP
master

Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
Looking to step up to the 8.50's in 1/4 next season, not gonna do it with the small block. I believe 850 flywheel HP will get me there at 2650 lbs. Starting from scratch, how would you get there? Car will be BB, RB, with power glide and Dana 60 4.88 gear.

Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069942
09/05/11 09:37 PM 09/05/11 09:37 PM
Joined: Jan 2003
Posts: 17,918
Akron, Ohio
ProSport Offline
I Live Here
ProSport  Offline
I Live Here

Joined: Jan 2003
Posts: 17,918
Akron, Ohio
Megablock, 540 cubes, B1 Originals with a mild roller and a valve train good enough to bracket race alot. And preferably pump gas or E85 since you do race alot.

1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069943
09/05/11 09:40 PM 09/05/11 09:40 PM
Joined: Feb 2008
Posts: 181
Long Island, New York
W
W7 Duster Offline
member
W7 Duster  Offline
member
W

Joined: Feb 2008
Posts: 181
Long Island, New York
Although I run a small block, Big block is the way to go. I think the head selection is better and at 850 hp your pushing the reliability on a small block. See you at Norwalk!
Re: Build me 850 HP in most economical package [Re: W7 Duster] #1069944
09/05/11 09:43 PM 09/05/11 09:43 PM
Joined: Jan 2003
Posts: 20,815
A collage of whims
topside Offline
Too Many Posts
topside  Offline
Too Many Posts

Joined: Jan 2003
Posts: 20,815
A collage of whims
You might want to pick up AndyF's BB Mopar book. Lots of good info in there.
Re: Build me 850 HP in most economical package [Re: topside] #1069945
09/05/11 09:47 PM 09/05/11 09:47 PM
Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
wheelsup68dart Offline OP
master
wheelsup68dart  Offline OP
master

Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
BGR will be building this animal, since I am minimally versed in BB's I would like to know what I am talking about when I discuss with Bob.

Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069946
09/05/11 09:54 PM 09/05/11 09:54 PM
Joined: Jan 2003
Posts: 6,354
Aurora, Oh.
M
max_maniac Offline
master
max_maniac  Offline
master
M

Joined: Jan 2003
Posts: 6,354
Aurora, Oh.
Quote:

BGR will be building this animal, since I am minimally versed in BB's I would like to know what I am talking about when I discuss with Bob.




What kind of times does your dad run and what is the weight of his car Kind of got your answer right there I would think


Russ
Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069947
09/05/11 09:55 PM 09/05/11 09:55 PM
Joined: Jul 2004
Posts: 1,770
Pa
W
Wv68charger Offline
top fuel
Wv68charger  Offline
top fuel
W

Joined: Jul 2004
Posts: 1,770
Pa
Our combo isn't quite 850 but I think if you added a few cubes you'd be right there where you wanna be. Ours is low comp and it pushes the Charger pretty good even with a garbage chassis....
Re: Build me 850 HP in most economical package [Re: Wv68charger] #1069948
09/05/11 10:03 PM 09/05/11 10:03 PM
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar Offline
master
tubtar  Offline
master

Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
I'd seriously consider some kind of forced induction.........a tame turbo motor could do that and not break a sweat.
At that level , I don't think the costs are astronomical either.
Re: Build me 850 HP in most economical package [Re: ProSport] #1069949
09/05/11 10:03 PM 09/05/11 10:03 PM
Joined: Apr 2005
Posts: 2,128
Salt Lake City
C
camastomcat Offline
top fuel
camastomcat  Offline
top fuel
C

Joined: Apr 2005
Posts: 2,128
Salt Lake City
Quote:

Megablock, 540 cubes, B1 Originals with a mild roller and a valve train good enough to bracket race alot. And preferably pump gas or E85 since you do race alot.



What he said only 572 B1's, 13-1, race gas or E85, 900HP easy. PS Do not dyno on E85, you won't need to and it's too hard on the motor, gas is OK.
Re: Build me 850 HP in most economical package [Re: max_maniac] #1069950
09/05/11 10:26 PM 09/05/11 10:26 PM
Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
wheelsup68dart Offline OP
master
wheelsup68dart  Offline OP
master

Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
Quote:

Quote:

BGR will be building this animal, since I am minimally versed in BB's I would like to know what I am talking about when I discuss with Bob.




What kind of times does your dad run and what is the weight of his car Kind of got your answer right there I would think


Russ


I hear ya Russ, but Dads car will go in the 30's and my chassis is only good to 8.50. I do not want a halo because I like the visibility. plus I do not wanna go with an aluminum block cause of the money.

Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069951
09/05/11 10:34 PM 09/05/11 10:34 PM
Joined: Jan 2008
Posts: 795
Glendale Az
D
Darryls-Demon Offline
super stock
Darryls-Demon  Offline
super stock
D

Joined: Jan 2008
Posts: 795
Glendale Az
I have a pair of Original B1s I will sell for a good price.
Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069952
09/05/11 11:40 PM 09/05/11 11:40 PM
Joined: Nov 2003
Posts: 3,438
Dandridge TN
D
Dabee Offline
master
Dabee  Offline
master
D

Joined: Nov 2003
Posts: 3,438
Dandridge TN
Send me a back channel. I have a BMRE built 816 HP Mega block with moderen CNC ported 440-1 heads, Scott Brown roller cam, jessel rockers and belt drive with 80 passes that may get you where you want to go. A shorty PG with straight cut 180 gears and 5500 stall coan converter comes with it.

6812809-Beasteng8.jpg (249 downloads)
Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069953
09/06/11 12:04 AM 09/06/11 12:04 AM
Joined: Jan 2003
Posts: 31,050
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

Joined: Jan 2003
Posts: 31,050
Oregon
850 HP isn't hard these days given all the good parts that are available. My 514 is making about 825 on the dyno with EZ heads and an out of the box cast intake manifold. It has flat top pistons and a small roller cam. More compression, more cubes, bigger cam, etc and it would be past 850.

If it was me I'd decide what fuel I was going to run first and then go from there. Once you know what fuel you are going to use then you can design the engine around that. If C-12 is available at your local track and you can afford to use it then that makes the engine design fairly simple.
Re: Build me 850 HP in most economical package [Re: camastomcat] #1069954
09/06/11 12:16 AM 09/06/11 12:16 AM
Joined: Mar 2007
Posts: 501
ONTARIO,CANADA
6
604 Hemi GTX Offline
mopar
604 Hemi GTX  Offline
mopar
6

Joined: Mar 2007
Posts: 501
ONTARIO,CANADA
Quote:

Quote:

Megablock, 540 cubes, B1 Originals with a mild roller and a valve train good enough to bracket race alot. And preferably pump gas or E85 since you do race alot.



What he said only 572 B1's, 13-1, race gas or E85, 900HP easy. PS Do not dyno on E85, you won't need to and it's too hard on the motor, gas is OK.


Just curious why you wouldn't dyno the motor with E85.
Re: Build me 850 HP in most economical package [Re: AndyF] #1069955
09/06/11 12:16 AM 09/06/11 12:16 AM
Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
wheelsup68dart Offline OP
master
wheelsup68dart  Offline OP
master

Joined: Sep 2006
Posts: 4,628
Columbus, Ohio
I would like to maintain low compression if possible, pump gas mix/ E85.

Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069956
09/06/11 12:35 AM 09/06/11 12:35 AM
Joined: Jul 2010
Posts: 3,502
SOUTH JERSEY
HEMIFRED Offline
master
HEMIFRED  Offline
master

Joined: Jul 2010
Posts: 3,502
SOUTH JERSEY
Quote:

BGR will be building this animal, since I am minimally versed in BB's I would like to know what I am talking about when I discuss with Bob.



If he is the buider I would let BG give you all your various options. Once that's established and you are aware of the choices you can get more specific with you questions.What others have or would use will not have much bearing on BG's build.
I must have asked too many questions because eventually he told me to shut up and let him work.

my 588" BG built is nearing 250 hard driven passes and still ticking like a Rolex.

home of the
Sox and Martin Hemi Duster
Re: Build me 850 HP in most economical package [Re: wheelsup68dart] #1069957
09/06/11 01:05 AM 09/06/11 01:05 AM
Joined: Jan 2003
Posts: 31,050
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

Joined: Jan 2003
Posts: 31,050
Oregon
Quote:

I would like to maintain low compression if possible, pump gas mix/ E85.



Pump gas makes the 850 goal more difficult. E85 also adds cost unless you already have a fuel system that is designed for it. I'd really think hard about the fuel choice before you get to far into the engine design.
Re: Build me 850 HP in most economical package [Re: AndyF] #1069958
09/06/11 01:15 AM 09/06/11 01:15 AM
Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
WILD BILL Offline
Senior Member of the Junior Dragster Club
WILD BILL  Offline
Senior Member of the Junior Dragster Club

Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
Why not alcohol?

Re: Build me 850 HP in most economical package [Re: camastomcat] #1069959
09/06/11 01:17 AM 09/06/11 01:17 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
What he said only 572 B1's, 13-1, race gas or E85, 900HP easy. PS Do not dyno on E85, you won't need to and it's too hard on the motor, gas is OK.



I would go this route... but I would test with E85
on the dyno... you can get away with 13:1 easy with
E-85 and not have to twist it hard... PLUS it'll have
more for later if you do step up the chassis
Re: Build me 850 HP in most economical package [Re: 604 Hemi GTX] #1069960
09/06/11 02:28 AM 09/06/11 02:28 AM
Joined: May 2007
Posts: 174
Oklahoma
H
hemiiroc Offline
member
hemiiroc  Offline
member
H

Joined: May 2007
Posts: 174
Oklahoma
Quote:

Quote:

Quote:

Megablock, 540 cubes, B1 Originals with a mild roller and a valve train good enough to bracket race alot. And preferably pump gas or E85 since you do race alot.



What he said only 572 B1's, 13-1, race gas or E85, 900HP easy. PS Do not dyno on E85, you won't need to and it's too hard on the motor, gas is OK.


Just curious why you wouldn't dyno the motor with E85.



x2....i've dynoed dozens of engines with E85
Page 1 of 6 1 2 3 4 5 6

Moderated by  Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer 
Privacy Policy · Forum Rules · Mark All Read Contact Us · Moparts




Moparts Main Index | READ - Info & Help Page | Moparts Sponsors | Tech Archive


Powered by UBB.threads™ PHP Forum Software 7.7.1