SBC on Alcohol
#1
Senior Member
DYNO TECH
Thread Starter
Join Date: Feb 2004
Location: Leonard, Texas
Posts: 414
SBC on Alcohol
Been running on gas for years, thinking about changeing my SB over to Alcohol. It's a 409 ci. with 14:1 comp. Where would you guys start with baseline settings for fuel pressure, jet size, spark plugs and gap, timing etc...
Also do you know if there's a kit available to change the Holley HP 1000 to alcohol from gas or should I just by a different carb all together?
Thanks, Bill
Also do you know if there's a kit available to change the Holley HP 1000 to alcohol from gas or should I just by a different carb all together?
Thanks, Bill
#3
Senior Member
DYNO TECH
Thread Starter
Join Date: Feb 2004
Location: Leonard, Texas
Posts: 414
Originally Posted by davis419b
Buy a Rupert Fuel system and be done with it. Bolt in on ,set the fuel pressure and it will be right. Dont know your complete combo but i would say 35 degrees timing.
Current combo:
SB 409
4.165 bore
5.7 rod
3.75 stroke
14:1 comp
630 roller
AFR 227 heads flow 327 / 243 @ .700
2.100 int / 1.60 ex
Super Victor
Huges 5000 RPM 8" converter
400 trans w/brake soon to be powerglide
5.13 gear
33 x 16's
4 link
3500 w driver
Timing 38 deg.
#6
Senior Member
DYNO TECH
Thread Starter
Join Date: Feb 2004
Location: Leonard, Texas
Posts: 414
Originally Posted by us7race
What is this motor in and what does it run now?..
1980 Z-28 (bought new)
409 SBC / AFR 227 heads
Holley HP-1000
Super Victor
400 trans w/hughes 8" and trans brake
9" w/ 4.33 gears
3500 lb (with my fat a$$ driven)
29 x 10.5 hoosiers
1.35 60"
1/4 - 9.86 / 138 mph with really good air
#7
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
www.apdracing.com
call and ask for Randy tell him David Lanning sent ya
I've ran APD's carbs for 3 years now, alky and gas. I switched from rupert to a apd on my 383 and it picked up a tenth :lol:
APD has no lean out valve it warms up in a few mins, starts with no issues even at 35 degrees and is the most consistent carb I've ever owned !
call and ask for Randy tell him David Lanning sent ya
I've ran APD's carbs for 3 years now, alky and gas. I switched from rupert to a apd on my 383 and it picked up a tenth :lol:
APD has no lean out valve it warms up in a few mins, starts with no issues even at 35 degrees and is the most consistent carb I've ever owned !
#8
Senior Member
EXPERT BUILDER
Join Date: Jul 2005
Location: Wylie,Texas
Posts: 276
Go to a big money race and ask around, Rupert will be 2 to 1 over ant other alcohol carb there. VERY, VERY CONSISTENT! A lean out valve is not part of the carb it is an add on you do not need it! I use it if i need to warm the engine up quickly or if it is cold outside. I have not seen one brand over the other that is good for a tenth if both carbs are jetted the same and tuned correctly. Just my opinion!
#9
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
The rupert was purchased new from rupert bolted on and ran no faster then my gas setup, 3 months later after no good results I got the APD set up for the same motor did nothing bolted it on saturday won on sunday. I got no calls back from rupert either is why I wont run his stuff or wont suggest it to anyone poor cust. service stands out to me.
we will have to agree to disagree APD is all over here 10 state region atleast, there is ruperts but nothing like APD, @ bowling green this year in ruperts back yard it was apd country.
I have 3 rupert users here locally that switched last year to APD stuff and wont ever run anything else they bolt on and just work. Billet metering block and base plates it was amazing to see how many ruperts and other brand carbs were are in line to be worked on when I go to APD's shop ..
I love my carb just not my motor from them :wink:
we will have to agree to disagree APD is all over here 10 state region atleast, there is ruperts but nothing like APD, @ bowling green this year in ruperts back yard it was apd country.
I have 3 rupert users here locally that switched last year to APD stuff and wont ever run anything else they bolt on and just work. Billet metering block and base plates it was amazing to see how many ruperts and other brand carbs were are in line to be worked on when I go to APD's shop ..
I love my carb just not my motor from them :wink:
#10
Senior Member
DYNO TECH
Thread Starter
Join Date: Feb 2004
Location: Leonard, Texas
Posts: 414
What are your thoughts on Rons flying toilet or terminator injection systems. I was thinking about the small terminator system. May even consider an electronic injection setup for tunability.