Profiler 375’s or Brodix BB3-xtra

www.apdracing.com
www.diamondracecars.com
www.callies.com

Back in the day the 1802 Duke heads where worth some et. You could probably get them pretty cheap now. I ran 7.18@187 with a 1940lbs dragster. That was high 4.50s to low 4.60 with a single terminator.

--------------------
Bob Payton
S/P, T/D, S/C, TOP
309Z, 393, 3093, 8X93

Posts: 1996 | Location: Michigan | Registered: November 14, 2001

Ignored post by Bob Payton posted

racerdude2054

DRR Sportsman

posted

quote:
Originally posted by TOP38:
quote:
Originally posted by SCDIV1:

I have seen some real strong SR-20 headed engines lately. Makes me want one.....

I have one now, Dart's version - Pro20's. 632 single race gas carb has run 6.76 and 197 plus at 1840 lbs. Great combo. This motor is a good 25 pounds lighter than my old 12 degree 632 and runs the same!

What was the difference in MPH between the 12 degree and SR20 combos?

Posts: 866 | Location: Georgia | Registered: May 09, 2008

Ignored post by racerdude2054 posted

Bigdrive88

DRR Trophy
Picture of Bigdrive88

posted

I guess because I havent seen or heard of anyone doing it. I know people who have tried to run alcohol carbs with them without much success. I have also entioned it several times on different forums & no one has told me otherwise.

quote:
Originally posted by Dave Koehler:
quote:
Originally posted by MorgretNation:
Problem with the Sr20 is I want to keep running the alcohol injection. I know alot of people running those heads but none of them is running alcohol

Not that the head change will be a life changer but I'm just curious as to what makes you think you can't run the terminator with the SRs?

Posts: 186 | Location: Hagerstown | Registered: September 01, 2014

Ignored post by Bigdrive88 posted

TOP38

DRR S/Pro

posted

quote:
Originally posted by TOP38:
Running alky in a high HP/CID application is much easier with injection vs a carb due to the fact you MFI can supply both quality and quantity at the same time. Carbs have a tougher time doing both. Since we are not talking Comp/PS here there are no magical parts that alky needs vs gas but when running some heads such as 12 degree BC and the SR/Pro 20 heads also fall into this area, some chamber mods are required. I number of years back James Monroe built a motor, not sure what size, in the 598 range, with 12 degree Profiler BC heads using a Ron's terminator and it ran great!!!!

So there is no reason you can't use a set of SR20 or Pro 20 heads and use alky!

About 6 or so years ago I ran a 565 with Brodix HH's (383's) with a Terminator setup. Ran it in a 1925 lbs RED and it ran 4.50's in good air but mostly 60's using a soft hit 8" converter! No magical alky cam was used in this combo.

Posts: 2163 | Location: Tewksbury, MA,USA | Registered: November 03, 2000

Ignored post by TOP38 posted

TOP38

DRR S/Pro

posted

quote:
Originally posted by racerdude2054:
quote:
Originally posted by TOP38:
quote:
Originally posted by SCDIV1:

I have seen some real strong SR-20 headed engines lately. Makes me want one.....

I have one now, Dart's version - Pro20's. 632 single race gas carb has run 6.76 and 197 plus at 1840 lbs. Great combo. This motor is a good 25 pounds lighter than my old 12 degree 632 and runs the same!

What was the difference in MPH between the 12 degree and SR20 combos?

If anything the Pro 20 is slightly faster! The Pro 20 combo has a little more lift cam wise but less compression than the 12 degree.
The graphs on my racepak are identical using the same carb and converter comparing one to the other!

Posts: 2163 | Location: Tewksbury, MA,USA | Registered: November 03, 2000

Ignored post by TOP38 posted

DRR Sportsman
Picture of Mike Frizie

posted

may wanna look into the Race Flow Development RFD 24 - B ( non-MC ). supposed to make good power on the alky!

Race Flow development 24-B

Just completed a 584 with these heads. just waiting for a sunny day to see results.

Michael Frizie
ET 2471

Posts: 637 | Location: Winston, GA | Registered: April 10, 2002

Ignored post by Mike Frizie posted

DRR Sportsman
Picture of Mike Frizie

posted

SCDiv1, pm sent

Michael Frizie
ET 2471

Posts: 637 | Location: Winston, GA | Registered: April 10, 2002

Ignored post by Mike Frizie posted

SCDIV1

DRR S/Pro

posted

Got it and pm sent back to you.

Posts: 2735 | Location: Where ever I am, I'm here and it's me | Registered: March 15, 2007

Ignored post by SCDIV1 posted

DRR Sportsman
Picture of Mike Frizie

posted

PM SENT BACK

Michael Frizie
ET 2471

Posts: 637 | Location: Winston, GA | Registered: April 10, 2002

Ignored post by Mike Frizie posted

gxp7903

DRR Trophy

posted

[QUOTE]Originally posted by DRB Motorsports:
may wanna look into the Race Flow Development RFD 24 - B ( non-MC ). supposed to make good power on the alky!

Race Flow development 24-B

I had these on my 582, went high 60s low 70s mostly. Best of 4.61 down in Richmond.

I built a 632 last winter and put these heads on it. Have been running 4.50s all year. Mostly ive tested converters this year, Think ive had 7 converters in and out of it. 4.52-4.54 151 currently. Have found maybe .06 between em.
Even sprayed a little shot for a Q32, went 4.44 155.
Oh yeah, single alky carb.

Posts: 102 | Location: Ohio | Registered: December 19, 2014

Ignored post by gxp7903 posted

DRR Sportsman
Picture of Mike Frizie

posted

quote:
I had these on my 582, went high 60s low 70s mostly

Wonder what I'm doing wrong then!?!

Michael Frizie
ET 2471

Posts: 637 | Location: Winston, GA | Registered: April 10, 2002

Ignored post by Mike Frizie posted

JRAMER

DRR Trophy

posted

What are camshaft specs?

Posts: 24 | Location: Peterman, AL | Registered: November 16, 2010

Ignored post by JRAMER posted

DRR Sportsman
Picture of Mike Frizie

posted

900, 855. 282,292 with a 113 centerline

Michael Frizie
ET 2471

Posts: 637 | Location: Winston, GA | Registered: April 10, 2002

Ignored post by Mike Frizie posted

gxp7903

DRR Trophy

posted

A friend made a time run in my car when I had to work last year with 582, he was 80lbs heavier. it was .08 slower. I was 1860 lbs with the 582. 1880 with 632 without the bottle.

Posts: 102 | Location: Ohio | Registered: December 19, 2014

Ignored post by gxp7903 posted

DRR Sportsman
Picture of Mike Frizie

posted

Lady’s probably just fat and the 4.10 big bubba combo ain’t helping

Michael Frizie
ET 2471

Posts: 637 | Location: Winston, GA | Registered: April 10, 2002

Ignored post by Mike Frizie posted