Need help on BBC alcohol tune.ROOKIES
#11
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Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Originally Posted by OneBadGMC
You realize that the leak down is just a base, and that you'll have to change it 2-3 times every day, right?
Start the motor, loosen the screws, fatten it up until it surges, then lean it back out just until the surging stops.
As for plumbing.... See below.
Start the motor, loosen the screws, fatten it up until it surges, then lean it back out just until the surging stops.
As for plumbing.... See below.
Once you get it set the only change you should make all year is a pill change from hot to cold or cold to hot weather ??
I run return straight to top of fuel cell, crank trigger MSD.
#12
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Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by hammertime
I've got to ask why change it 2-3 times a day ??
Once you get it set the only change you should make all year is a pill change from hot to cold or cold to hot weather ??
I run return straight to top of fuel cell, crank trigger MSD.
Once you get it set the only change you should make all year is a pill change from hot to cold or cold to hot weather ??
I run return straight to top of fuel cell, crank trigger MSD.
I take it you don't own a weather station.
#13
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RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Originally Posted by OneBadGMC
Originally Posted by hammertime
I've got to ask why change it 2-3 times a day ??
Once you get it set the only change you should make all year is a pill change from hot to cold or cold to hot weather ??
I run return straight to top of fuel cell, crank trigger MSD.
Once you get it set the only change you should make all year is a pill change from hot to cold or cold to hot weather ??
I run return straight to top of fuel cell, crank trigger MSD.
I take it you don't own a weather station.
#16
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EXPERT BUILDER
Join Date: Aug 2005
Location: Tell City, IN
Posts: 356
Originally Posted by OneBadGMC
You realize that the leak down is just a base, and that you'll have to change it 2-3 times every day, right?
Start the motor, loosen the screws, fatten it up until it surges, then lean it back out just until the surging stops.
As for plumbing.... See below.
Start the motor, loosen the screws, fatten it up until it surges, then lean it back out just until the surging stops.
As for plumbing.... See below.
#17
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by us7race
What do you know on a High Speed Lean-out? :wink:
Do you have a more specific question?
#18
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Join Date: Aug 2005
Location: Tell City, IN
Posts: 356
My buddy has just added one and I figured I'd ask. He is going to start out with the smallest pill and go from there. His EGT's on a couple of cylinders were down to around 300 still ran 6.52 @209 in the 1/4.
I think it was a 4.19 in the 1/8 on a not the greatest track..his 60' was off from .980's to 1.0's. so Hopefully with more seat-time in the car and the high speed lean-out can go 6.40's or better..
I think it was a 4.19 in the 1/8 on a not the greatest track..his 60' was off from .980's to 1.0's. so Hopefully with more seat-time in the car and the high speed lean-out can go 6.40's or better..
#19
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Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by us7race
My buddy has just added one and I figured I'd ask. He is going to start out with the smallest pill and go from there. His EGT's on a couple of cylinders were down to around 300 still ran 6.52 @209 in the 1/4.
I think it was a 4.19 in the 1/8 on a not the greatest track..his 60' was off from .980's to 1.0's. so Hopefully with more seat-time in the car and the high speed lean-out can go 6.40's or better..
I think it was a 4.19 in the 1/8 on a not the greatest track..his 60' was off from .980's to 1.0's. so Hopefully with more seat-time in the car and the high speed lean-out can go 6.40's or better..
Should help him setup the high speed if he knows what he's looking at.
#20
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Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by hammertime
Originally Posted by OneBadGMC
Originally Posted by hammertime
I've got to ask why change it 2-3 times a day ??
Once you get it set the only change you should make all year is a pill change from hot to cold or cold to hot weather ??
I run return straight to top of fuel cell, crank trigger MSD.
Once you get it set the only change you should make all year is a pill change from hot to cold or cold to hot weather ??
I run return straight to top of fuel cell, crank trigger MSD.
I take it you don't own a weather station.