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Welcome to American Drag Racing Home of American Drag Racing Forums
American Drag Racing Forums has 1205 topics / 7719 posts / 412 members |
Hot Topics At The Moment Are:
Gears
issues |
The Newest Post Is: issues
Our Member of The Day For Today is: ToddPerry
Please Welcome Our Newest Member: David_Brown |
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The instructions are posted in the General Nitrous Discussions forum. Please DO NOT post pictures in the forum.
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| » issues |
Went out to the outlaw track last night to try a few things. Wired in a digiset to control the second stage and was gonna tune on the first stage as
well.
First pass...spun the tires, ran a 6:37 @ 109 with a 1.43 60'.
Hot lapped it and tryed another one on the other lane, 6.27 @109 with a 1.40 60'.
Last time out it went 6.17 @110 with the same tune but with 7 psi in the first stage, lowered it down to 6.75 and it seemed lazy out of the hole,
barely picking the tires up. Last time out 60' was 1.34-35.
Was gonna pull it back up to 7 and make another run on the first stage but brackets were coming up and I wanted to get a second stage hit with the
timer. .8 out on the second kit it went a 5.96 @118. not quite as well as the last time out.
I will say it might have had to do with the air, it was hot, humid, and the air felt really heavy...just seems that with the tune up that I have I
should be running around 6 psi on the first shot, 67/63f but when I pull fuel pressure I seem to slow down....
Am I that lean on the motor or is that just he way it is?
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| » LSM camshafts |
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Has anyone ever had any dealings with LSM camshafts? I'm thinking of changing cams and they were highly recommended, but they do have a big price tag
to go with them. I'm not to fimiliar with them except for what some guys have told me. Also does putting bigger lifters(.904 dia.) and bushing the
block really make that much of a difference as far as longevity in the valvetrain?
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| » 4-link |
I can't find it now but what is the site that has the instant center calculator for four links. thanks David
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| » plug pictures |
well its been awhile but i'm back at the track .tested the car with the new motor and was quite happy .using my LM1 data logger it showed 10.0/1
across the whole run .
these plugs where run 2 times and followed the correct plug reading procedures each run.timing looks good but lean ,looking for your insite as
interested in all comments.
as like many i'm trying to sharpen my plug reading skills.
fuel C14 , 120 hp shot , 2 deg timing out ,28 total.
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| » Hooking up two bottle? |
I have two bottles in a Jerry Bickel mount on the passenger side of the car where a seat would be. To go from the two bottles up to the back of
the tunnel ram, how would a person BEST run the line(s)?
"Y" them together as soon as possible and run one -6 on up to the second "Y" to each solenoid OR,
run two separate lines up to the solenoid's split "Y" OR what?
Both bottles have -6 fittings. They are about 5' to the back of the engine where the other "Y" fitting is.
The attached photo is the second "Y" at the back of the engine that splits to each solenoid. ( -4 ) The "Y" is actually about 6 inches or more
above the distributor but the photo...
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| » N2O AFR on wideband |
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I have a Innovate wideband AFR meter. I was having really rich readings around 9.1 10.3 @ wot, with 61 fuel and 55 N2O. I brought the fuel down to 55
to a square setting. It moved very little, to maybe 10.5 to 10.9. I have a preset mechanical pump, that holds 6psi @wot. NA my AFR is 12.8 13.2. I
know there is alot of controversy on the optimum afr for N2O... WHY? I would like to know a ideal AFR to shoot for. Can I run AFRs with N20 like I do
NA?
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| » Digi-Set Question |
I just got my digi-set timer in for my second stage. Most wiring diagrams show that terminal 1 and 2 are tied together from the first stage and pin 7
is grounded. If pin 1 is separated from pin 2 and switched power (to arm stage 2 ) is sent to pin one, will the digi set release when the first stage
shuts off (or power to pin 2 goes away?
According to the diagram it should, but does it?
Thanks
TP
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| » Checking coils |
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Does anyone have any info about how to check and see if the coils are bad or good. I have a couple of NOS pro race solenoids that wouldn't open
during a race this weekend and when I checked them on a dry test( no nitrous to them) they would work fine, But when the nitrous was put to them they
would not open. Bottle pressure was 950 at the time but I was battleing high heat this weekend and at one time I had 1300 psi in the bottle before a
race. I did purge of pressure to get to 950 but they still didn't work. I think the coils may be on there way out but I'm looking for a way to test
them. Any ideas?
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