Carb tuning
09-04-2013 | 11:37 PM
#31
Registered
Joined: Oct 2007
Posts: 8,439
Likes: 93
From: yorkville,il
09-04-2013 | 11:46 PM
#33
Registered
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
I am highly intoxicated at the moment, and this still smells like ****t.
Dan , lets shoot for 12.5 at wot. Mike and I need a winter project. Make sure you hold it pegged good, we need to upgrade heads while we're changing pistons out
Dan , lets shoot for 12.5 at wot. Mike and I need a winter project. Make sure you hold it pegged good, we need to upgrade heads while we're changing pistons out
09-04-2013 | 11:51 PM
#35
Registered
Joined: Oct 2007
Posts: 8,439
Likes: 93
From: yorkville,il
i know where we can get the pistons,lol.
09-05-2013 | 12:11 AM
#37
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 45
From: Ft. Worth TX
Last edited by BUP; 09-05-2013 at 12:18 AM.
09-05-2013 | 12:22 AM
#38
Registered
Joined: Aug 2005
Posts: 71
Likes: 0
From: Concord, North Carolina
They where 1350 Sterling to start with. I use most of Mike's recipe. I run cams from Hollman Moddy custom ground. They are very small but will run to 7500 and idle at 700 rpm. My ignition system is fully programable it has boost retard, retard for curb idle (neutral) and i run a timing curve; 36 degree total. I run race stripped 10.71:1 Mooneyham blower at 1.1 over drive. Special surface gap sparkplugs. I tune with Innovative O2 AFR meters in the collectors. I run blower shop intercooler forward motion feed only. I have single stage waterpumps raw-water only at 150 degree water temps. Twin in line modified 1150 Holley 3 circuit carbs(power-valves front and rear) 80 Mains Squared .080 PVRC 4.5 and 5.0 above the blower with the intermediate and idle circuits this equates to a 112 main jets at full throttle acceleration 12.9:1 AFR
09-05-2013 | 12:42 AM
#39
Registered
Joined: Aug 2005
Posts: 6,306
Likes: 1
From: Between A Womans Leggs in IL
I`m sorry man but the idle air circuit has nothing to do with primary or secondary jetting or any AFR numbers above idle. Ive got it as lean as it will go without dying when shifted and its at low 12`s at idle.. 14.7 aint happening.
Was hoping someone with some actual carb tuning experience would have chimed in (not counting Mild or Tkat of course) no biggie, we`ll get this figured out. I`m going to restrict the fuel dump thru the power valve at 4K and see what happens.
The advice I got from Nickerson today was to add a secondary power valve.. umm ok cause the primary valve fuel dump just wasn`t enough??
What in the world????
Was hoping someone with some actual carb tuning experience would have chimed in (not counting Mild or Tkat of course) no biggie, we`ll get this figured out. I`m going to restrict the fuel dump thru the power valve at 4K and see what happens.
The advice I got from Nickerson today was to add a secondary power valve.. umm ok cause the primary valve fuel dump just wasn`t enough??
What in the world????
09-05-2013 | 03:31 AM
#40
Registered
Joined: Oct 2007
Posts: 8,439
Likes: 93
From: yorkville,il
even with my glasses on i cant seem to find the blower belt,hell i cant even see the blower.
