Shakedown continues at the dyno
06-24-2004, 09:29 AM
#1
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Shakedown continues at the dyno
The shakedown continues for the Tomato. 
Last night I went to New England Dyno and Tuning ( www.nedyno.com ) and threw the old girl on the rollers.
On the first pull it made 577 / 526. This was the same tune that I had when the car went 10.58 @ 128.
After some tuning and tweaking (and a few phone calls to Lonnie Pavtis for wisdom) the car made 654 RWHP and 580 RWTQ.
This was through FLP dual cats.
I’m taking the car off the road for a few weeks as I’m yanking out the torque converter and sending it back to Precision Industries to get tightened up. Currently it stalls at 4600
Thanks go out to Dyno Dean Hoffman and Rob from New England Dyno and Tuning for taking good care of me.
Speaking of that I’ll be going back to NEDT to dyno the LS-1 soon.
Thanks again to Lonnie for hooking me up with some great deals on my D-1 and also helping me select the parts I'm using and lastly for working with me to sort out the associated issues I've had and get me to this point. I'm pretty physched as the car is exceeding my expectations.
When I built it, my goals were 10.5's, 130 mph and 600 RWHP, two out of three aint bad at this early stage.
I’ll be looking forward to getting the converter back and seeing what it will do with some extra power and a converter that doesn’t slip all the way down the track.
130 mph should be no problem
Here are the dyno graphs
http://www.tta89.net/marc/654hp.jpg
http://www.tta89.net/marc/dynopulls.jpg
Marc
Last night I went to New England Dyno and Tuning ( www.nedyno.com ) and threw the old girl on the rollers.
On the first pull it made 577 / 526. This was the same tune that I had when the car went 10.58 @ 128.
After some tuning and tweaking (and a few phone calls to Lonnie Pavtis for wisdom) the car made 654 RWHP and 580 RWTQ.
This was through FLP dual cats.
I’m taking the car off the road for a few weeks as I’m yanking out the torque converter and sending it back to Precision Industries to get tightened up. Currently it stalls at 4600
Thanks go out to Dyno Dean Hoffman and Rob from New England Dyno and Tuning for taking good care of me.
Speaking of that I’ll be going back to NEDT to dyno the LS-1 soon.
Thanks again to Lonnie for hooking me up with some great deals on my D-1 and also helping me select the parts I'm using and lastly for working with me to sort out the associated issues I've had and get me to this point. I'm pretty physched as the car is exceeding my expectations.
When I built it, my goals were 10.5's, 130 mph and 600 RWHP, two out of three aint bad at this early stage.
I’ll be looking forward to getting the converter back and seeing what it will do with some extra power and a converter that doesn’t slip all the way down the track.
130 mph should be no problem
Here are the dyno graphs
http://www.tta89.net/marc/654hp.jpg
http://www.tta89.net/marc/dynopulls.jpg
Marc
06-24-2004, 02:15 PM
#3
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Join Date: Aug 1998
Location: Perryopolis, Pa
Posts: 520
The stock springs & shocks with those big 275/40/17 tires on the front end arent doing you any favors either. A set of skinnies are probably worth a tenth alone
10.50's at 127mph + your new found 80hp & another .1sec for the front tires.... I think you will be happy.
10.50's at 127mph + your new found 80hp & another .1sec for the front tires.... I think you will be happy.
06-24-2004, 08:38 PM
#4
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Join Date: Mar 2002
Location: Baton Rouge, LA, USA
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"10's at only 575 rwhp"???!!!???
This is all very confusing to me.
I put together my combination (8.3/1 383, AFR 210's, 224/236 cam, Hooker LT's, T-trim at 13 psi, Aftercooler, etc. . .) expecting 650 rwhp. Instead I got 550 rwhp and have been trying to figure out where all my power went. People with much less are making more power.
I went to the track at full weight (all seats, A/C, roll bar, 17's on the front, sway bars, etc. . .) probably around 3700 car only and 27X10 ET Streets, and ran 10.40 at 133 mph on the only clean pass. With only 550 rwhp. At 3700+ lb.
Is my car weak or strong?
Mike
This is all very confusing to me.
I put together my combination (8.3/1 383, AFR 210's, 224/236 cam, Hooker LT's, T-trim at 13 psi, Aftercooler, etc. . .) expecting 650 rwhp. Instead I got 550 rwhp and have been trying to figure out where all my power went. People with much less are making more power.
I went to the track at full weight (all seats, A/C, roll bar, 17's on the front, sway bars, etc. . .) probably around 3700 car only and 27X10 ET Streets, and ran 10.40 at 133 mph on the only clean pass. With only 550 rwhp. At 3700+ lb.
Is my car weak or strong?
Mike
06-24-2004, 09:03 PM
#5
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Thanks guys
Mike,
Not sure what to tell ya
I weighed my Z on the day it went 10.5 and it weighed 3820 with me in it
Your mph is pretty good.
What was your 60 ft on that run?
Seems like you need some more boost
Marc
Mike,
Not sure what to tell ya
I weighed my Z on the day it went 10.5 and it weighed 3820 with me in it
Your mph is pretty good.
What was your 60 ft on that run?
Seems like you need some more boost
Marc
06-24-2004, 09:21 PM
#6
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Location: Baton Rouge, LA, USA
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The run was:
60': 1.52
1/8: 6.69 @ 105.3
1/4: 10.40 @ 132.6
The car has a nasty tip-in lean bog and had been running 10.60's until the very last pass, where I learned to leave at idle instead of stalling it up.
I imagine my race weight was around 3900 with my 200 lb added.
I'm already spinning my T-trim max recommended speed with 6.66/2.75 pullies.
Mike
60': 1.52
1/8: 6.69 @ 105.3
1/4: 10.40 @ 132.6
The car has a nasty tip-in lean bog and had been running 10.60's until the very last pass, where I learned to leave at idle instead of stalling it up.
I imagine my race weight was around 3900 with my 200 lb added.
I'm already spinning my T-trim max recommended speed with 6.66/2.75 pullies.
Mike
06-24-2004, 09:31 PM
#7
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Join Date: Aug 1998
Location: Perryopolis, Pa
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Mike,
Your times are decent & in line with Marc's at that power level. His converter is too loose & slipping considerably killing the MPH & some ET as well with over 1000rpm slippage in the lights. This will be changing soon.
You have a rather big cam, low compression & only moderate boost. You could add another 5# boost on pump fuel with 8.3:1 comp & find another 100hp.
Your times are decent & in line with Marc's at that power level. His converter is too loose & slipping considerably killing the MPH & some ET as well with over 1000rpm slippage in the lights. This will be changing soon.
You have a rather big cam, low compression & only moderate boost. You could add another 5# boost on pump fuel with 8.3:1 comp & find another 100hp.
06-24-2004, 09:46 PM
#8
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Join Date: Mar 2002
Location: Baton Rouge, LA, USA
Posts: 2,743
Lonnie, my cam is set up at 0 deg adv, which delays IVC further versus the common 4 deg adv, thus compounding the problem you point out.
How do you propose I raise my boost?
I believe I can get 7" crank and 2.5" blower pullies from ASP, which would get me from 13 to around 17 psi assuming no slippage, but the impeller speed would be 65,700 when the max Vortech recommends is 55,000.
1st and goal, sorry to highjack the thread.
Mike
How do you propose I raise my boost?
I believe I can get 7" crank and 2.5" blower pullies from ASP, which would get me from 13 to around 17 psi assuming no slippage, but the impeller speed would be 65,700 when the max Vortech recommends is 55,000.
1st and goal, sorry to highjack the thread.
Mike
06-24-2004, 10:21 PM
#9
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Location: San Juan PR
Posts: 3,083
Mike.. i already told you i didn't like your bin file you sent me once...
The other thing.. why dont you step up to a YS-trim? that is what i did...
the other thing.. if you are maxing out your T-trim you are pushing down way more than 550rwhp... so there are some issues with the dyno or the converter too loose, or as I told you... you could have a problem in your tune.
I did 607 with a manual though, through an s-trim with a damaged impeller... and 190lt1 afr heads... Maybe your cam is not what it should be? care to share more about your setup?
The other thing.. why dont you step up to a YS-trim? that is what i did...
the other thing.. if you are maxing out your T-trim you are pushing down way more than 550rwhp... so there are some issues with the dyno or the converter too loose, or as I told you... you could have a problem in your tune.
I did 607 with a manual though, through an s-trim with a damaged impeller... and 190lt1 afr heads... Maybe your cam is not what it should be? care to share more about your setup?
06-25-2004, 06:02 AM
#10
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Location: Rochester Hills, MI
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Can you post a copy of your dynosheet? Also you car seems to run extremely good for only 550rwhp. I agree that you car should be making way more than 550 rwhp. Is your cam on a 114ls? What are your lift numbers? Also I would think with the compression you are running it would be perfect to shoot a nice 50-75 shot of nitrous.
Originally posted by engineermike
"10's at only 575 rwhp"???!!!???
This is all very confusing to me.
I put together my combination (8.3/1 383, AFR 210's, 224/236 cam, Hooker LT's, T-trim at 13 psi, Aftercooler, etc. . .) expecting 650 rwhp. Instead I got 550 rwhp and have been trying to figure out where all my power went. People with much less are making more power.
I went to the track at full weight (all seats, A/C, roll bar, 17's on the front, sway bars, etc. . .) probably around 3700 car only and 27X10 ET Streets, and ran 10.40 at 133 mph on the only clean pass. With only 550 rwhp. At 3700+ lb.
Is my car weak or strong?
Mike
"10's at only 575 rwhp"???!!!???
This is all very confusing to me.
I put together my combination (8.3/1 383, AFR 210's, 224/236 cam, Hooker LT's, T-trim at 13 psi, Aftercooler, etc. . .) expecting 650 rwhp. Instead I got 550 rwhp and have been trying to figure out where all my power went. People with much less are making more power.
I went to the track at full weight (all seats, A/C, roll bar, 17's on the front, sway bars, etc. . .) probably around 3700 car only and 27X10 ET Streets, and ran 10.40 at 133 mph on the only clean pass. With only 550 rwhp. At 3700+ lb.
Is my car weak or strong?
Mike
Last edited by IDOXLR8; 06-25-2004 at 06:45 AM.
06-25-2004, 06:42 AM
#11
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Location: Baton Rouge, LA, USA
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IDOXLR8, my cam is on a 114 and the lift is .605" intake / .593" exhaust. I don't have an electronic copy of my dyno sheet, but the torque peaks as soon as you open the throttle (575 ft lb at 3700) and gradually slopes downward. The hp peaks at 6500 with 547. It makes over 500 hp from 4900 and up and only falls to 520 by 7200.
Highlander, you wanted to give it more timing at part throttle, which I see no point in doing. I'm not stepping up to a YS trim because the T trim has the potential to reach my goals. LJ has run 9.90's with an S trim, so I don't think I need a YS. Furthermore, I need to make my current combo work right before making any big changes and throwing more money at it.
My converter is a Vigilante 2800 "0" pump. It acts more like a 4000 due to the torque output of the motor. I don't have a lock-up either (TH-350). What converter is 1st and goal using?
Mike
Highlander, you wanted to give it more timing at part throttle, which I see no point in doing. I'm not stepping up to a YS trim because the T trim has the potential to reach my goals. LJ has run 9.90's with an S trim, so I don't think I need a YS. Furthermore, I need to make my current combo work right before making any big changes and throwing more money at it.
My converter is a Vigilante 2800 "0" pump. It acts more like a 4000 due to the torque output of the motor. I don't have a lock-up either (TH-350). What converter is 1st and goal using?
Mike
06-25-2004, 06:58 AM
#12
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Join Date: Apr 1999
Location: Rochester Hills, MI
Posts: 2,784
Was the car dynoed on a Mustang dyno? I find it weird that your torque numbers peak out right away like that. Although I am running a 6-speed my torque numbers did not peak out til 5300 rpm. If you are looking for a converter than I would highly recommend contacting Marty at Neil Chance converter. They are extremely knowledgeable when it comes to converters for FI applications. Are you possibly encountering belt slippage?
Originally posted by engineermike
IDOXLR8, my cam is on a 114 and the lift is .605" intake / .593" exhaust. I don't have an electronic copy of my dyno sheet, but the torque peaks as soon as you open the throttle (575 ft lb at 3700) and gradually slopes downward. The hp peaks at 6500 with 547. It makes over 500 hp from 4900 and up and only falls to 520 by 7200.
Highlander, you wanted to give it more timing at part throttle, which I see no point in doing. I'm not stepping up to a YS trim because the T trim has the potential to reach my goals. LJ has run 9.90's with an S trim, so I don't think I need a YS. Furthermore, I need to make my current combo work right before making any big changes and throwing more money at it.
My converter is a Vigilante 2800 "0" pump. It acts more like a 4000 due to the torque output of the motor. I don't have a lock-up either (TH-350). What converter is 1st and goal using?
Mike
IDOXLR8, my cam is on a 114 and the lift is .605" intake / .593" exhaust. I don't have an electronic copy of my dyno sheet, but the torque peaks as soon as you open the throttle (575 ft lb at 3700) and gradually slopes downward. The hp peaks at 6500 with 547. It makes over 500 hp from 4900 and up and only falls to 520 by 7200.
Highlander, you wanted to give it more timing at part throttle, which I see no point in doing. I'm not stepping up to a YS trim because the T trim has the potential to reach my goals. LJ has run 9.90's with an S trim, so I don't think I need a YS. Furthermore, I need to make my current combo work right before making any big changes and throwing more money at it.
My converter is a Vigilante 2800 "0" pump. It acts more like a 4000 due to the torque output of the motor. I don't have a lock-up either (TH-350). What converter is 1st and goal using?
Mike
06-25-2004, 07:42 AM
#13
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Originally posted by engineermike
1st and goal, sorry to highjack the thread.
Mike
1st and goal, sorry to highjack the thread.
Mike
No biggie
I'm running a Vigilante from Precision Industries.
It was supposed to be a 2800 stall multi disc converter that I had built for my old motor combo, unfortunately I blew up the motor 3 days after getting the tranny rebuilt and the converter installed
Marc
06-25-2004, 07:58 AM
#14
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Join Date: Apr 1999
Location: Rochester Hills, MI
Posts: 2,784
Originally posted by 1st and goal
Bastard
No biggie
I'm running a Vigilante from Precision Industries.
It was supposed to be a 2800 stall multi disc converter that I had built for my old motor combo, unfortunately I blew up the motor 3 days after getting the tranny rebuilt and the converter installed
Marc
Bastard
No biggie
I'm running a Vigilante from Precision Industries.
It was supposed to be a 2800 stall multi disc converter that I had built for my old motor combo, unfortunately I blew up the motor 3 days after getting the tranny rebuilt and the converter installed
Marc
06-25-2004, 09:01 AM
#15
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Join Date: Apr 2000
Location: Hudson,MA currently Worcester, MA
Posts: 300
Well at the dyno and I quote "Yeah if the car goes much faster and they make me put a 10 point cage and all the saftey equipment I'll just detune the program and run slower"
Can you Guys believe Marc said that!!! I was in shock.
Rob
Can you Guys believe Marc said that!!! I was in shock.
Rob