Was going to sneek to the track again
07-30-2014, 04:01 PM
#41
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Thread Starter
And to add to the WTH is going on thread....
Just found this on YB when I was looking for converter re-stalling....
Just found this on YB when I was looking for converter re-stalling....
90 mustang 3030lb with driver
glide w/ 8in stall-will transbrake/flash to 5200
4.56 gear with 325/50/15 radials
6.0 LS LQ9/vic jr carb intake/850 quick fuel carb/1 7/8 longtube headers to 3in exhaust
cam is a hyd roller .24x @ .050 int/ex, 112 lsa, .61x lift
Front suspension
lakewood 90/10's, aje k member and a arms, coilover kit with 130lb springs
Rear suspension
solid upper and lower arms in stock location, QA1 single adjustables w/ 130lb springs, anti roll bar.
Thanks in advance for any input.
__________________
Cam only 6.0 LQ9 Mustang
6.71 @101, 10.6 @126 N/A
6.2 @111, 9.8 @137 150 shot
One more detail, on the last track outing I was crossing the stripe at 6500rpm instead of 7k at the same mph (101) so the slippage now calculates out to about 17%. I was able to talk to the converter builder and asked him about my slippage numbers. He told me that they sounded right and that it should be about 1/2 that at 7k rpm if I were to run the car 1/4mi. That seems like a lot of change over a 500rpm window to me but I guess I need to give it try so see for sure. Anyone ever observe anything like that on the top end??? I'm still concerned that I'm going to push right through this thing if I hit it with a 150 shot but again I'd need to test it out to be sure. Thanks again for any input.
glide w/ 8in stall-will transbrake/flash to 5200
4.56 gear with 325/50/15 radials
6.0 LS LQ9/vic jr carb intake/850 quick fuel carb/1 7/8 longtube headers to 3in exhaust
cam is a hyd roller .24x @ .050 int/ex, 112 lsa, .61x lift
Front suspension
lakewood 90/10's, aje k member and a arms, coilover kit with 130lb springs
Rear suspension
solid upper and lower arms in stock location, QA1 single adjustables w/ 130lb springs, anti roll bar.
Thanks in advance for any input.
__________________
Cam only 6.0 LQ9 Mustang
6.71 @101, 10.6 @126 N/A
6.2 @111, 9.8 @137 150 shot
One more detail, on the last track outing I was crossing the stripe at 6500rpm instead of 7k at the same mph (101) so the slippage now calculates out to about 17%. I was able to talk to the converter builder and asked him about my slippage numbers. He told me that they sounded right and that it should be about 1/2 that at 7k rpm if I were to run the car 1/4mi. That seems like a lot of change over a 500rpm window to me but I guess I need to give it try so see for sure. Anyone ever observe anything like that on the top end??? I'm still concerned that I'm going to push right through this thing if I hit it with a 150 shot but again I'd need to test it out to be sure. Thanks again for any input.
07-31-2014, 04:49 AM
#43
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Thread Starter
I'm at 17% also...but at 7K'ish.
6.0L w/ a cam and 317 heads running 10.6 and only maybe 400# lighter than me but about the same weight as you.
unsure what cam he has. 24X @ 112 LSA is all I found
4.56's and a glide w/ a brake and a lot more stall
I'm thinking we're about at our limits unless we re-cam....ie. snookered.
6.0L w/ a cam and 317 heads running 10.6 and only maybe 400# lighter than me but about the same weight as you.
unsure what cam he has. 24X @ 112 LSA is all I found
4.56's and a glide w/ a brake and a lot more stall
I'm thinking we're about at our limits unless we re-cam....ie. snookered.
07-31-2014, 04:59 AM
#44
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I'm at 17% also...but at 7K'ish.
6.0L w/ a cam and 317 heads running 10.6 and only maybe 400# lighter than me but about the same weight as you.
unsure what cam he has. 24X @ 112 LSA is all I found
4.56's and a glide w/ a brake and a lot more stall
I'm thinking we're about at our limits unless we re-cam....ie. snookered.
6.0L w/ a cam and 317 heads running 10.6 and only maybe 400# lighter than me but about the same weight as you.
unsure what cam he has. 24X @ 112 LSA is all I found
4.56's and a glide w/ a brake and a lot more stall
I'm thinking we're about at our limits unless we re-cam....ie. snookered.
07-31-2014, 08:52 AM
#45
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I'm at 17% also...but at 7K'ish. 6.0L w/ a cam and 317 heads running 10.6 and only maybe 400# lighter than me but about the same weight as you. unsure what cam he has. 24X @ 112 LSA is all I found 4.56's and a glide w/ a brake and a lot more stall I'm thinking we're about at our limits unless we re-cam....ie. snookered.
07-31-2014, 09:53 AM
#46
Last edited by speedtigger; 07-31-2014 at 10:01 AM.
07-31-2014, 04:36 PM
#47
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Thread Starter
And your combo is ? Complete details please.
Your ET/MPH is ?
400# isn't going to make a 1 second difference at this level.
A lighter car NEEDS more stall....agree ?
__________________________________________________ __
Take any combo on here NA in the 10's or 11's and do me this test.....
Run the car a few passes for a baseline
Now add 400#
Run a few more passes and tell me what the ET/MPH difference was.
I will put up $$$ it is way less than 1 second
Anyone ?
Your ET/MPH is ?
400# isn't going to make a 1 second difference at this level.
A lighter car NEEDS more stall....agree ?
__________________________________________________ __
Take any combo on here NA in the 10's or 11's and do me this test.....
Run the car a few passes for a baseline
Now add 400#
Run a few more passes and tell me what the ET/MPH difference was.
I will put up $$$ it is way less than 1 second
Anyone ?
07-31-2014, 08:00 PM
#50
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Thread Starter
I was just trying to show that IF you have 2 cars the same but 1 is heavier that they don't need 2 totally different set-ups...just the ET's would be weight dependent.
Maybe I could of picked a better example ?
Maybe I could of picked a better example ?
07-31-2014, 08:20 PM
#51
My converter is around 8% on the nitrous. I am really pleased with Circle D straight across the board.
As for your cam, I just don't see any problems with it's valve events:
IVO is 13.5 ° BTDC ( - indicates ATDC)
IVC is 45.5 ° ABDC
EVO is 57.5 ° ATDC ( - indicates BTDC)
EVC is 9.5 ° BBDC
Overlap is 23 °
Everything in those valve events is really comparable to other cams I have seen for a 6 liter in the 7200 shift RPM range. I mean, some might hold the exhaust valve open a little longer for some more overlap, that is about the only thing varies much. I really don't think the valve events are off. I don't know what lobes it has, maybe you could have valve control issues. What is the lift?
If you are sure about the 18% converter slip crossing the stripe in the quarter, that is where my focus would be.
As for your cam, I just don't see any problems with it's valve events:
IVO is 13.5 ° BTDC ( - indicates ATDC)
IVC is 45.5 ° ABDC
EVO is 57.5 ° ATDC ( - indicates BTDC)
EVC is 9.5 ° BBDC
Overlap is 23 °
Everything in those valve events is really comparable to other cams I have seen for a 6 liter in the 7200 shift RPM range. I mean, some might hold the exhaust valve open a little longer for some more overlap, that is about the only thing varies much. I really don't think the valve events are off. I don't know what lobes it has, maybe you could have valve control issues. What is the lift?
If you are sure about the 18% converter slip crossing the stripe in the quarter, that is where my focus would be.
07-31-2014, 10:39 PM
#54
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And your combo is ? Complete details please.
Your ET/MPH is ?
400# isn't going to make a 1 second difference at this level.
A lighter car NEEDS more stall....agree ?
__________________________________________________ __
Take any combo on here NA in the 10's or 11's and do me this test.....
Run the car a few passes for a baseline
Now add 400#
Run a few more passes and tell me what the ET/MPH difference was.
I will put up $$$ it is way less than 1 second
Anyone ?
Your ET/MPH is ?
400# isn't going to make a 1 second difference at this level.
A lighter car NEEDS more stall....agree ?
__________________________________________________ __
Take any combo on here NA in the 10's or 11's and do me this test.....
Run the car a few passes for a baseline
Now add 400#
Run a few more passes and tell me what the ET/MPH difference was.
I will put up $$$ it is way less than 1 second
Anyone ?
And don't worry about my combo, I'm not a noob with getting a car down the track.
07-31-2014, 11:14 PM
#55
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Wait, so you guys were scratching your heads with copying DM's combo and are miles off his results regardless of weight. Yet he had a converter that was sorted by Ultimate, and you guys are using 9 or 9.5" ?? converters wondering where you are going wrong. And don't worry about my combo, I'm not a noob with getting a car down the track.
It's not the converter. Dave was putting more power down, pure and simple. Once he got the converter sorted out and a Trans brake in, it really started hauling the mail. I will find the missing hp. One of my first stops will be trying a larger carb. Eric L
07-31-2014, 11:19 PM
#56
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And, fwiw, Doug has an 8" converter AND a 4.10 gear like Dave had. Sorry, he's not going to pick up 15 mph and a full second with a converter restall. That's why Doug keeps referring to his amount of converter slippage. He's pulling decent 60s, and doesn't have an abnormal amount of slippage. The mph just isn't there, indicating a lack of horsepower.
Lets just keep this cool. Were all friends here, right guys? LOL
Lets just keep this cool. Were all friends here, right guys? LOL
Last edited by Prorac1; 08-01-2014 at 12:30 AM.
07-31-2014, 11:45 PM
#57
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http://www.planetlsx.com/vehicles/Ch..._with_L92s/107
The cliff notes are in this article.
I think if you read this over, you'll have a better understanding of our confusion vls1.
The cliff notes are in this article.
I think if you read this over, you'll have a better understanding of our confusion vls1.
08-01-2014, 02:21 AM
#58
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Yeah so an 8" converter in Dougs car built by ??? and slipping its *** off from what I can gather. His car is never going to perform like DM's car, but what's the shift extension like regardless?