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Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: JERICOGTX] #2700085
09/23/19 10:53 AM
09/23/19 10:53 AM
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Portage,michigan
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Originally Posted by JERICOGTX
Originally Posted by BradH
Nice!

I was wondering where the roll cage was, too.


Since he is running IHRA, he doesn't need a cage until 9.00 or faster. Does need a IHRA license though to go under 6.40, or 10.00.


You do need the halo bars ro run quicker than 9.99 in IHRA.
A 6 or 8 point rollbar is only good to 10 flat


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: quickd100] #2700086
09/23/19 10:57 AM
09/23/19 10:57 AM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline OP
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Originally Posted by quickd100
At what rpm are you shifting? Didn't look like it was going much past 6000.


I was shifting around 6500. The Rev limiter you can't here it. But I had to go change it to spin it higher. Plus it was a little lean I think yet as it was not climbing rpm real quick yet. Ran out of jet sizes at #106....

And it needs a full cage and window net anything below 6.50.....

After reviewing a copy of the vids it appears I shifted closer to 6200....

Last edited by Dragula; 09/23/19 12:31 PM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700121
09/23/19 12:36 PM
09/23/19 12:36 PM
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Posts: 11,701
Portage,michigan
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Seems wierd the car would want so much jet. Seems like a ton
I had a motor that made similar power to this one that ran 88/90 jets.
Actually 135 mph at 3350

Last edited by B3422W5; 09/23/19 01:07 PM.

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: B3422W5] #2700123
09/23/19 12:43 PM
09/23/19 12:43 PM
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Posts: 964
Odessa, Fl
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blowndart Offline
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Originally Posted by B3422W5
Seems wierd the car would want so much jet. Seems like a ton
I had a motor that made similar power to this one that ran 88/90 jets.

I was thinking the same thing. Is this a Thumper-modified carb?

Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: blowndart] #2700145
09/23/19 01:48 PM
09/23/19 01:48 PM
Joined: Jul 2005
Posts: 1,300
Penna
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"Seems wierd the car would want so much jet. Seems like a ton
I had a motor that made similar power to this one that ran 88/90 jets. "

Yeah! My 572 Wedge with Quickfuel 1450 is jetted 96 square! Mid 9s at 138.
Wondering what carb or combo would need even MORE than 106.

Mike

Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700148
09/23/19 02:17 PM
09/23/19 02:17 PM
Joined: Sep 2003
Posts: 421
montana
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montana
How old/ how many passes on your current tires?


64 Dodge Coronet 440. In progress
1998. Dodge Avenger. 8.35@165. 4400 DA
250” Neil and Parks Slip Joint. 7.36@183.
4600 DA
242" Mullis Dragster. 6.90@ 200mph
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: 70satelliteguy] #2700165
09/23/19 03:22 PM
09/23/19 03:22 PM
Joined: Jan 2016
Posts: 216
America
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America
Originally Posted by 70satelliteguy
"Seems wierd the car would want so much jet. Seems like a ton
I had a motor that made similar power to this one that ran 88/90 jets. "

Yeah! My 572 Wedge with Quickfuel 1450 is jetted 96 square! Mid 9s at 138.
Wondering what carb or combo would need even MORE than 106.

Mike


Saw a little small block car with jets in the 170 range a few weeks ago and yes on race gas...

Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: WedgeFED] #2700176
09/23/19 04:22 PM
09/23/19 04:22 PM
Joined: Jan 2003
Posts: 6,389
nielsville, minn.
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quickd100 Offline
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If you are still running the Indy Hi-Po heads shifting at 6200 you haven't even hit the Hp peak in the powerband. They are real lazy down low. I pulled mine to just passed 6700, the Hp was still climbing.

Last edited by quickd100; 09/23/19 05:46 PM.
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: blowndart] #2700214
09/23/19 06:38 PM
09/23/19 06:38 PM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline OP
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Originally Posted by blowndart
Originally Posted by B3422W5
Seems wierd the car would want so much jet. Seems like a ton
I had a motor that made similar power to this one that ran 88/90 jets.

I was thinking the same thing. Is this a Thumper-modified carb?


Its a Thumper 1250 carb and its on pump gas 93 with E10, so that requires an AFR of around 12.2....Friday nights pass showed it was close to 13.8 in high gear. Saturday I went up from #104 to #106, and it looks like its around 12.5-12.8 now. I still had jets in my hand when they called us to the lanes....But it was much better, and I gained almost 2mph in the 1/8th.....So it probably just needs to go 1-2 more. I will order them, but I doubt I will run this car again this year. My belts are out and I was lucky they let me run actually let alone, I made it down to the last four cars....Not too bad for a street car. Going to have to figure out what kind of tire to put on it for next year. Thinking of trying a 315DR in R2 compound....Its shorter and will kick the rpm a little.

And yes Hi-Po big valve heads still....I could tell it wasn't pulling real good yet, so the jetting needed to be better before pulling it that high, and my 20 year old 7k rev limiter chip was hitting at 6600....

Last edited by Dragula; 09/23/19 06:43 PM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700323
09/24/19 03:56 AM
09/24/19 03:56 AM
Joined: Dec 2009
Posts: 20,600
in a cattle trailer down by th...
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in a cattle trailer down by th...
I'm thinking if you need that much jet you need more than one carb. Sounds sweet though and yeah, your RT's are insane for a foot brake car.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700355
09/24/19 08:16 AM
09/24/19 08:16 AM
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
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Put a 315 pro on it. I'd definitely spin it higher w/ those big heads and manifold.
I'm also very surprised it needs that much jet. My 1200 dominator (mod'd 1150) is 88/96 w/ a PV up front.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700380
09/24/19 09:34 AM
09/24/19 09:34 AM
Joined: Jan 2003
Posts: 964
Odessa, Fl
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blowndart Offline
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Odessa, Fl
Originally Posted by Dragula
[
Its a Thumper 1250 carb and its on pump gas 93 with E10, so that requires an AFR of around 12.2....Friday nights pass showed it was close to 13.8 in high gear. Saturday I went up from #104 to #106, and it looks like its around 12.5-12.8 now. I still had jets in my hand when they called us to the lanes....But it was much better, and I gained almost 2mph in the 1/8th.....So it probably just needs to go 1-2 more
Assuming that you AFR meter is accurate, it looks like you're close that what that carb wants. Thanks for posting the videos. Must feel great to get it out and race it after all that you've been through with that engine.

Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: blowndart] #2700391
09/24/19 09:59 AM
09/24/19 09:59 AM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline OP
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Dragula  Offline OP
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Taxes & Virus's R-US, NY
Outside the car vids.




Last edited by Dragula; 09/24/19 12:39 PM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700432
09/24/19 11:57 AM
09/24/19 11:57 AM
Joined: Jan 2003
Posts: 20,149
Park Forest, IL
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Park Forest, IL
Straight down Broadway, nice! boogie


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Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: blowndart] #2700542
09/24/19 05:59 PM
09/24/19 05:59 PM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline OP
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Dragula  Offline OP
I Live Here

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Taxes & Virus's R-US, NY
Originally Posted by 70satelliteguy
"Seems wierd the car would want so much jet. Seems like a ton
I had a motor that made similar power to this one that ran 88/90 jets. "

Yeah! My 572 Wedge with Quickfuel 1450 is jetted 96 square! Mid 9s at 138.
Wondering what carb or combo would need even MORE than 106.

Mike


Well, the plenum on that intake is huge as well as the runners and I took the clover leaf out.....So the MPH is telling me its lean, and so is the AFR guage, so I am going up....My 1000cfm 4150 on my 512 had 96's in it, my 1050 Thumper on my 512 has 104's in it.....Seems about right....

Originally Posted by BANDIT
How old/ how many passes on your current tires?


Tires are old and shot, the side wall is just getting obliterated even at 14psi......What is the best hooking tire for a leaf spring car in a 31x16.5 or 315 radial?



Originally Posted by blowndart
Originally Posted by Dragula
[
Its a Thumper 1250 carb and its on pump gas 93 with E10, so that requires an AFR of around 12.2....Friday nights pass showed it was close to 13.8 in high gear. Saturday I went up from #104 to #106, and it looks like its around 12.5-12.8 now. I still had jets in my hand when they called us to the lanes....But it was much better, and I gained almost 2mph in the 1/8th.....So it probably just needs to go 1-2 more
Assuming that you AFR meter is accurate, it looks like you're close that what that carb wants. Thanks for posting the videos. Must feel great to get it out and race it after all that you've been through with that engine.


It does finally feel good. After what I went thru with the Indy block, I can tell you, this engine, with all the same parts as before, holds way better oil pressure, and makes more power. Its already .05 quicker and it weighs more than 200lbs more.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700679
09/25/19 08:01 AM
09/25/19 08:01 AM
Joined: Oct 2004
Posts: 3,097
back in Georgia
dthemi Offline
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Posts: 3,097
back in Georgia
Anytime you can load up with new stuff, roll it out, blast off and get to the other end in one piece is a real success.

Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700681
09/25/19 08:18 AM
09/25/19 08:18 AM
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
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Posts: 13,319
Marion, South Carolina [><]
PUT A 315 ET STREET PRO ON IT.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: an8sec70cuda] #2700702
09/25/19 09:21 AM
09/25/19 09:21 AM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline OP
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Taxes & Virus's R-US, NY
Should I use a bead lock rim? Last ones we ran spun on the rims....


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: Dragula] #2700707
09/25/19 09:33 AM
09/25/19 09:33 AM
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
an8sec70cuda  Offline
I Live Here

Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
Beadlocks are nice and preferred if you can afford them. I can't, so I use permatex to glue the beads.
I also ran screws in radials for 10+ years and had no problems, but now they say not to do that b/c it can hurt the tire. shruggy


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Hemi Cuda.....1st Pass Off the trailer tonight [Re: an8sec70cuda] #2700962
09/25/19 10:27 PM
09/25/19 10:27 PM
Joined: Jul 2004
Posts: 1,145
Arizona, USA
gsmopar Offline
super stock
gsmopar  Offline
super stock

Joined: Jul 2004
Posts: 1,145
Arizona, USA
Originally Posted by an8sec70cuda
Beadlocks are nice and preferred if you can afford them. I can't, so I use permatex to glue the beads.
I also ran screws in radials for 10+ years and had no problems, but now they say not to do that b/c it can hurt the tire. shruggy


Champion wheels bridged the price gap for beadlocks. Too bad they're out of the game!

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