New best tonight, 9.62 @ 141
#1
New best tonight, 9.62 @ 141 and video
As said in post, pretty good night and all passes but last better than previous best.
First 1.45 60 rear tires, 6.14 @ 112, 9.626 @ 140.98
Second pass almost exact, other than 1.35 60 due to slight slip causing front to drop early, 6.13 @ 112, 9.628 @ 140.54
Track went away as night went on, all being lost in the 60ft.
3rd pass 9.64 @ 140.3, 1.37 60 ft
4th pass 9.66 @ 140.1, 1.38 60ft
5th pass 9.69 @ 140.4, 1.42 60 ft - that pass probably could have bested them all, but traction just was not there for me, most people were running under by then, that took me out in third round.
Did not beat previous best by much, previous was 9.68 @ 141, which I have match a few times, but never beat. The car still has 50s hidden in it, and want to hit that prior to spraying, still trying to get to MIR before end of year, only time and weather will tell.
Track photograper got a good photo I think, will have to wait few weeks to find out probably.
Second pass
http://www.youtube.com/watch?v=5VamUz01L40
First 1.45 60 rear tires, 6.14 @ 112, 9.626 @ 140.98
Second pass almost exact, other than 1.35 60 due to slight slip causing front to drop early, 6.13 @ 112, 9.628 @ 140.54
Track went away as night went on, all being lost in the 60ft.
3rd pass 9.64 @ 140.3, 1.37 60 ft
4th pass 9.66 @ 140.1, 1.38 60ft
5th pass 9.69 @ 140.4, 1.42 60 ft - that pass probably could have bested them all, but traction just was not there for me, most people were running under by then, that took me out in third round.
Did not beat previous best by much, previous was 9.68 @ 141, which I have match a few times, but never beat. The car still has 50s hidden in it, and want to hit that prior to spraying, still trying to get to MIR before end of year, only time and weather will tell.
Track photograper got a good photo I think, will have to wait few weeks to find out probably.
Second pass
http://www.youtube.com/watch?v=5VamUz01L40
Last edited by 87_TA; 10-12-2008 at 09:06 AM.
#3
Supreme Member
iTrader: (14)
Joined: Jan 2004
Posts: 1,761
Likes: 3
From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
Re: New best tonight, 9.62 @ 141
nice going!! I found I had to spread the RPM limiter and shift light by at least 400 rpms to catch them in time, stay off the limiter and the 50`s may be there already, cool vid though..love how your car wheelies. I`m right on your heels 87...one and a half tenths off still on motor...new best on the 150 shot though
#4
Re: New best tonight, 9.62 @ 141
nice going!! I found I had to spread the RPM limiter and shift light by at least 400 rpms to catch them in time, stay off the limiter and the 50`s may be there already, cool vid though..love how your car wheelies. I`m right on your heels 87...one and a half tenths off still on motor...new best on the 150 shot though
I do have some more power left under the hood literally, My hood is only about 1.5" off top of carb, 2 years ago removed it for one pass and picked up a 1/10... New hood is on the list for some year.. Really happy though, that car made it all season with no mechanical issues since transmission.
And man!!! 144 MPH!! Sweet!!
9.15!!!!!!!! That is sick bud, one hel of a ride man!
Where did all that come from? Man I want to spray, need to start searching ebay from a dominator plate.
Last edited by 87_TA; 10-13-2008 at 10:19 AM.
#5
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iTrader: (2)
Joined: Dec 2006
Posts: 5,538
Likes: 0
From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: New best tonight, 9.62 @ 141
What are the specs of your big block? I would like to do a 496 onm the street and see if i can do 9s on motor but it is not so easy with 11 to 1 compression. But damn, you are turning 7500 RPM in a big block? You muct be running a mechanical roller with high compression.
#6
Re: New best tonight, 9.62 @ 141
Compression is only 13:1, if you dropped to 11:1 you should not lose more than probably 60-70HP tops.. CarCraft did a test on a mopar dropping from
12:1 down to like 8.5:1 and only lost a little over 100HP.
Mine is 496 eagle rotating, of course mech roller, AFR 325 cast heads, 1250 dominator, Victor 454r.. I may try extending limiter and shifting closer to 8000 to see if it picks up, it really seems to start pulling at 7000, which may hold true, i was just tapping limiter on that pass at 7900 and run best time to date...
12:1 down to like 8.5:1 and only lost a little over 100HP.
Mine is 496 eagle rotating, of course mech roller, AFR 325 cast heads, 1250 dominator, Victor 454r.. I may try extending limiter and shifting closer to 8000 to see if it picks up, it really seems to start pulling at 7000, which may hold true, i was just tapping limiter on that pass at 7900 and run best time to date...
#7
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Joined: Jul 1999
Posts: 17,170
Likes: 138
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: New best tonight, 9.62 @ 141
I spin my 540 to 7400. It starts to nose over above that. Needs a different cam grind to go higher. I'm running tiny 310 heads. The engine needs at least 345's. Only $3000 for a set of big assembled heads built to handle my current camshaft.
I can't remember my exact compression ratio. Somewhere around 13:1. Would like to bump it up to 15:1 but would need smaller combustion chambers to do it. The engine already has the largest lightweight dome piston available. Small combustion chambers however shroud the large valves so it's a trade off.
I can't remember my exact compression ratio. Somewhere around 13:1. Would like to bump it up to 15:1 but would need smaller combustion chambers to do it. The engine already has the largest lightweight dome piston available. Small combustion chambers however shroud the large valves so it's a trade off.
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#8
Supreme Member
iTrader: (2)
Joined: Dec 2006
Posts: 5,538
Likes: 0
From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: New best tonight, 9.62 @ 141
Not bad, i might go with 12.5 to 1 if i can get the E85 readily available. Then there is the 100 octane low lead nav gas at the air strip right next to my house. But i think i might not be able to go 12.5 to 1 with that, i am not sure. What are your cam grind specs?
Compression is only 13:1, if you dropped to 11:1 you should not lose more than probably 60-70HP tops.. CarCraft did a test on a mopar dropping from
12:1 down to like 8.5:1 and only lost a little over 100HP.
Mine is 496 eagle rotating, of course mech roller, AFR 325 cast heads, 1250 dominator, Victor 454r.. I may try extending limiter and shifting closer to 8000 to see if it picks up, it really seems to start pulling at 7000, which may hold true, i was just tapping limiter on that pass at 7900 and run best time to date...
12:1 down to like 8.5:1 and only lost a little over 100HP.
Mine is 496 eagle rotating, of course mech roller, AFR 325 cast heads, 1250 dominator, Victor 454r.. I may try extending limiter and shifting closer to 8000 to see if it picks up, it really seems to start pulling at 7000, which may hold true, i was just tapping limiter on that pass at 7900 and run best time to date...
#9
Senior Member
Joined: Nov 2004
Posts: 864
Likes: 0
From: stuart fl
Car: 82 camaro
Engine: 434 ci
Transmission: t400
Axle/Gears: 9'' 4.10 gear
Re: New best tonight, 9.62 @ 141
Good to see it going faster. Are you going to limit your front end travel or have you already tried to? And I have a new 5'' jonblod hood and a new dominator plate.
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