Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
have ? about best combo #186178
01/06/09 09:54 PM
01/06/09 09:54 PM
Joined: Aug 2006
Posts: 416
Eagleville Tn.
rtstreet Offline OP
mopar
rtstreet  Offline OP
mopar

Joined: Aug 2006
Posts: 416
Eagleville Tn.
ok guys need to know what your opinion is, we are building a new car for my son and i cant decide which way to go (small or big block)
car = 73 cuda, 25.5 cage, S-60 cal tracs and split mono, bob's frt end, mini tubed, 15x12 with 29.5 x 10.5 S, 727 or glide, all max effort stuff.
Power adder = F-1R procharger (the biggest allowed)
1st combo = up to 365 cid small block, indy 360's big bore small stroke, only 3125 lbs.
2nd combo = up to 400 cid same but 3225 lbs.
3rd combo = up to 477 cid big block, cnc 440-1 (345 cc runner) 3225 lbs.
4th combo = up to 524 cid same but 3275 lbs.
what i am wondering is will the increase in boost and the lighter weight of the 365 cid be the best choice, maybe a super small big block???, I dont have alot of experience with blowers or small blocks at this level, please ask me anything and help us sort this out.
thanks moparts guru's

Re: have ? about best combo [Re: rtstreet] #186179
01/06/09 10:00 PM
01/06/09 10:00 PM
Joined: Jan 2003
Posts: 6,266
Renton Washington
T
Triple Threat Offline
master
Triple Threat  Offline
master
T

Joined: Jan 2003
Posts: 6,266
Renton Washington
So no matter what its going to have an F1 procharger hanging off the front of it, you just need help figuring out how big of a motor you want to run?

I'm thinking a big block with -1's with some forced induction would be well worth the 100-150# weight penalty over the 365.

Last edited by Triple Threat; 01/06/09 10:04 PM.

-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
Re: have ? about best combo [Re: Triple Threat] #186180
01/06/09 10:02 PM
01/06/09 10:02 PM
Joined: Aug 2006
Posts: 416
Eagleville Tn.
rtstreet Offline OP
mopar
rtstreet  Offline OP
mopar

Joined: Aug 2006
Posts: 416
Eagleville Tn.
yes for sure f-1r already have and it is the biggest we can run

Re: have ? about best combo [Re: Triple Threat] #186181
01/06/09 10:10 PM
01/06/09 10:10 PM
Joined: Jan 2007
Posts: 437
south central pa
bdaz smblk Offline
mopar
bdaz smblk  Offline
mopar

Joined: Jan 2007
Posts: 437
south central pa
I would go with 365 on leafs and rely on lots of rpm's.Won't have lots of torque to blow tires off early with a glide.That thing would hall the mail.Good luck with it and keep us posted.Hope Cam kicks butt with it.


3120lb, small block, 10.5" tire, NA, through exhaust, full int, WITH 83/4 REAR, 9.0 at 150mph
Re: have ? about best combo [Re: bdaz smblk] #186182
01/06/09 11:03 PM
01/06/09 11:03 PM
Joined: Jun 2003
Posts: 9,225
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,225
Charleston
Andy, this is a question we would be asking you

do they make a good sb block like they do for big blocks?







me and Quicktree wanted say hello to you but you had a crowd around you at the PRI show.


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: have ? about best combo [Re: sixpackgut] #186183
01/06/09 11:17 PM
01/06/09 11:17 PM
Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ Offline
moparts member
RyanJ  Offline
moparts member

Joined: Jan 2003
Posts: 8,547
State College, PA
Quote:



do they make a good sb block like they do for big blocks?












Two letters....

4928890-W9013.jpg (136 downloads)
Re: have ? about best combo [Re: RyanJ] #186184
01/06/09 11:26 PM
01/06/09 11:26 PM
Joined: Oct 2004
Posts: 3,097
back in Georgia
dthemi Offline
master
dthemi  Offline
master

Joined: Oct 2004
Posts: 3,097
back in Georgia
I'm not a guru, but since all a blower does is make cubic inches, and you only have one choice, it'll only blow so many inches. I'd take the 524 with less boost for a total of more inches all together. If you can put that extra weight where you want it, I think you'd be faster with the inches and weight than any of the other choices.

Re: have ? about best combo [Re: RyanJ] #186185
01/06/09 11:27 PM
01/06/09 11:27 PM
Joined: Oct 2005
Posts: 2,611
Elbridge, NY
D
Dart1031 Offline
master
Dart1031  Offline
master
D

Joined: Oct 2005
Posts: 2,611
Elbridge, NY
Quote:

Quote:



do they make a good sb block like they do for big blocks?












Two letters....




That's one letter

I would think with a 'glide the BB isn't gonna blow the tires off.

Re: have ? about best combo [Re: Dart1031] #186186
01/07/09 12:09 AM
01/07/09 12:09 AM
Joined: Jun 2003
Posts: 9,225
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,225
Charleston
can you get an aluminum R3? how many head bolts on them? i feel dumb


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: have ? about best combo [Re: sixpackgut] #186187
01/07/09 12:27 AM
01/07/09 12:27 AM
Joined: Jul 2003
Posts: 12,129
Cleveland
sunroofgtx Offline
I Live Here
sunroofgtx  Offline
I Live Here

Joined: Jul 2003
Posts: 12,129
Cleveland
Andy, I'd go with what DT said.. He's got a pretty good grip on combo's.. New drawing board , Andy ??


Join the quickest team in motorsports. Team FireCore. CustomWiresets.com
Re: have ? about best combo [Re: rtstreet] #186188
01/07/09 12:28 AM
01/07/09 12:28 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
I think I would go 400ci small block. With the 25.5
chassis I'm sure its going to be light enough that
you can put weight anywhere you need it
R3 block, you can get a large bore in it, and some
good heads W-8 or W-9

Re: have ? about best combo [Re: MR_P_BODY] #186189
01/07/09 12:31 AM
01/07/09 12:31 AM
Joined: Jan 2003
Posts: 19,358
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,358
Las Vegas
What would it need to run to be competitive. I ask because I am sure you want to be at the least competitive, also might give some of the guys here insight as to what kind of power you are talking about.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: have ? about best combo [Re: Al_Alguire] #186190
01/07/09 12:42 AM
01/07/09 12:42 AM
Joined: Jan 2003
Posts: 6,266
Renton Washington
T
Triple Threat Offline
master
Triple Threat  Offline
master
T

Joined: Jan 2003
Posts: 6,266
Renton Washington
Just guessing here but looking at the rules looks like Xtreme Street is what they want to run with it.

Records for Xtreme Street are
177.32 mph
7.851 ET


-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
Re: have ? about best combo [Re: Triple Threat] #186191
01/07/09 01:16 AM
01/07/09 01:16 AM
Joined: Aug 2006
Posts: 416
Eagleville Tn.
rtstreet Offline OP
mopar
rtstreet  Offline OP
mopar

Joined: Aug 2006
Posts: 416
Eagleville Tn.
524 most cid DT
have built lots of small blocks just none with blower
no w-8 only 360-1 or2, w-5, b-1ba mc
record my friend cameron 7.80's
and the fastest combo out of the ones you think Al
would like to run 7.90's but want to go as fast as we can with what the rules allow, my challenger has been 8.20 @ 3450 477 cid and nos
rules page http://www.nmcadigital.com/forums/showthread.php?t=10735

Re: have ? about best combo [Re: rtstreet] #186192
01/07/09 01:39 AM
01/07/09 01:39 AM
Joined: Jan 2003
Posts: 19,358
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,358
Las Vegas
A 477"ish BB with an aluminum block and a set of max effort B1's might be fun. Dont know a lot about the SB heads but seems to me the allowable pieces may not be the optimum choice to make the needed power. I see a weight break for Mopar up to 477 cubes would be a 3375, that is a bit of weight though.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: have ? about best combo [Re: Al_Alguire] #186193
01/07/09 01:49 AM
01/07/09 01:49 AM
Joined: Aug 2006
Posts: 416
Eagleville Tn.
rtstreet Offline OP
mopar
rtstreet  Offline OP
mopar

Joined: Aug 2006
Posts: 416
Eagleville Tn.
that is the way i would have went if i hadn't bought so much for the 524 b-1

Re: have ? about best combo [Re: Al_Alguire] #186194
01/07/09 01:50 AM
01/07/09 01:50 AM
Joined: Jan 2003
Posts: 6,266
Renton Washington
T
Triple Threat Offline
master
Triple Threat  Offline
master
T

Joined: Jan 2003
Posts: 6,266
Renton Washington
I read it as being
3400# base weight for a 477cid supercharged big block. B1's are your best bet for a head.
-50# for being pre 1974
-75# for Mopar
-50# for stock suspension

Puts you at 3225# Unless i am reading something wrong.


-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
Re: have ? about best combo [Re: rtstreet] #186195
01/07/09 01:56 AM
01/07/09 01:56 AM
Joined: Oct 2004
Posts: 3,097
back in Georgia
dthemi Offline
master
dthemi  Offline
master

Joined: Oct 2004
Posts: 3,097
back in Georgia
I really think given how good a head you can put on a big block, bore size, and durability at that power level it would be the best option to go big. An aluminum big block would be heavier than an aluminum small block, so there's some of the weight anyway. There's no doubt in my mind the big block with the same blower would way out power the small block. If it were a run whatever blower, or turbo you want then I for sure be looking in the smaller inch combos since it's so hard to harness a big inch unlimited forced induction package. Plus I think it's easier to tune and control a motor on lower boost where you don't need to think about boost level, you can just spin the blower as hard as it'll go tune everything else with boost being a constant. The weight for those et's and speed would be a fair trade for that kind of power difference. (just my opinion)

Re: have ? about best combo [Re: dthemi] #186196
01/07/09 02:27 AM
01/07/09 02:27 AM
Joined: Jan 2003
Posts: 6,266
Renton Washington
T
Triple Threat Offline
master
Triple Threat  Offline
master
T

Joined: Jan 2003
Posts: 6,266
Renton Washington
Quote:

I really think given how good a head you can put on a big block, bore size, and durability at that power level it would be the best option to go big. An aluminum big block would be heavier than an aluminum small block, so there's some of the weight anyway. There's no doubt in my mind the big block with the same blower would way out power the small block. If it were a run whatever blower, or turbo you want then I for sure be looking in the smaller inch combos since it's so hard to harness a big inch unlimited forced induction package. Plus I think it's easier to tune and control a motor on lower boost where you don't need to think about boost level, you can just spin the blower as hard as it'll go tune everything else with boost being a constant. The weight for those et's and speed would be a fair trade for that kind of power difference. (just my opinion)




~50 extra cubes(477-524) at only a 50# weight penalty is a pretty good deal.


-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
Re: have ? about best combo [Re: Triple Threat] #186197
01/07/09 10:49 AM
01/07/09 10:49 AM
Joined: Aug 2006
Posts: 416
Eagleville Tn.
rtstreet Offline OP
mopar
rtstreet  Offline OP
mopar

Joined: Aug 2006
Posts: 416
Eagleville Tn.
thanks guys keep um coming, 50 for 50, maybe new race team lol.

Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1