Ai New Best Track Time/Broken Parts
01-19-2008, 09:31 AM
#1
Ai New Best Track Time/Broken Parts Went to the 8th mile track tonight looking for the good weather. We were expecting some great air, but at the time I ran it was only around zero DA.
60' - 1.65
ET - 7.3X
MPH - 98.47
Unfortunately I only got one NA run in. As I was stopping to make the turn on the return lane, I noticed the gauges getting wierd. Then a check engine light came on and I quickly looked for the issue. Oil pressure was falling like a rock!
I pulled over quickly hoping it was just a burned sensor wire because I didn't hear my valve train getting loud. I pulled the dip stick and it was clean. I pulled the injector fuses and cranked it but no oil pressure on the gauge. I hoped for the best and cranked it over for a friend to listen to.
It started to get loud so we turned it right off. I think I stripped the oil drive gear. Too bad I couldn't get a pass in the cold weather. We were expecting -750 DA by 10pm . I think I have more in it with a better 60ft and clean shifting...it was my first pass off the trailer.
What does everyone running similar MPH trap in the 1/4? Just curious?
60' - 1.65
ET - 7.3X
MPH - 98.47
Unfortunately I only got one NA run in. As I was stopping to make the turn on the return lane, I noticed the gauges getting wierd. Then a check engine light came on and I quickly looked for the issue. Oil pressure was falling like a rock!
I pulled over quickly hoping it was just a burned sensor wire because I didn't hear my valve train getting loud. I pulled the dip stick and it was clean. I pulled the injector fuses and cranked it but no oil pressure on the gauge. I hoped for the best and cranked it over for a friend to listen to.
It started to get loud so we turned it right off. I think I stripped the oil drive gear. Too bad I couldn't get a pass in the cold weather. We were expecting -750 DA by 10pm . I think I have more in it with a better 60ft and clean shifting...it was my first pass off the trailer.
What does everyone running similar MPH trap in the 1/4? Just curious?
01-19-2008, 11:02 AM
#5
I have a roll bar in the car and it is legal to 10.0. With a cage and lisence it would be legal to much lower as I have all the other SFI safety parts.
As for trapping that in a full street trim car, I doubt it. My car is not a full blown race car with gutted interior and many other things, but it wasn't run in street trim. It is however exactly the same from intake to oil pan as when it was a street car. I drove this exact motor for 3k miles.
Changing air intakes, exhaust, th400 and gears make it less desireable to drive on the street. Not to say it couldn't be done. I also have about 200 pounds of weight reduction to go before I call it light. I have most of the free weight reduction done, but none of the weight reduction that costs money.
As for trapping that in a full street trim car, I doubt it. My car is not a full blown race car with gutted interior and many other things, but it wasn't run in street trim. It is however exactly the same from intake to oil pan as when it was a street car. I drove this exact motor for 3k miles.
Changing air intakes, exhaust, th400 and gears make it less desireable to drive on the street. Not to say it couldn't be done. I also have about 200 pounds of weight reduction to go before I call it light. I have most of the free weight reduction done, but none of the weight reduction that costs money.
01-19-2008, 04:26 PM
#6
well i was missing bumper supports ac and swaybar and abck seats spare tire and jack when i daily drove...hell id give up 1.5mph to still trap 96 in a 3500 pound street car thats impressive...what kinda flow numbers and cam specks? and compression/hp tq numbers
01-19-2008, 06:37 PM
#7
Flow numbers were like 277 with great low-mid lift. Cam is smaller than an LE3 and ground for nitrous...lots of exhaust and more LSA than an all out NA cam. Compression is 11:1. Last dyno was 341rwhp and I don't remember the torque. My dyno and track times are through a th400 so more drive train loss and no lock up. The stall is a 3500 so it will hurt dyno numbers too.
My heads/cam are old school though. They are great, but hold nothing to a pair of Ai200cc heads.
My heads/cam are old school though. They are great, but hold nothing to a pair of Ai200cc heads.
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01-19-2008, 09:45 PM
#8
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sucks to break on the first pass. Been there done that before with my big block Luv truck, lol. All the $$$ paying for wife and kids into the track, paying to race, race fuel, niotrous fill and then break on first pass. AAAUUUGGGHHH.
At least it did not window the block and squirt oil all over the track as you go throuhgh the traps ending up into the wall or on the roof. That would have REALLY sucked.
Hopefully some fresh bearings and maybe a crank polishing will be all that is needed.
98 MPH in the 1/8 should be good for 123-125 MPH in the 1/4 if geared for the 1/4 mile. I have always had a faster MPH (1-2 MPH) with all of my cars when spinning a lil and having a crummy 60 ft. When dead hooking the MPH will be slightly less but the car ET's better.
kinda like this . . . . . .
11.10 at 125 MPH with 1.65 60 ft
10.90 at 123 MPH with 1.55 60 ft
You still go from 0-125 MPH in 11.10 seconds but you cross the traps at a 10.90 and 123 MPH.
Lloyd
At least it did not window the block and squirt oil all over the track as you go throuhgh the traps ending up into the wall or on the roof. That would have REALLY sucked.
Hopefully some fresh bearings and maybe a crank polishing will be all that is needed.
98 MPH in the 1/8 should be good for 123-125 MPH in the 1/4 if geared for the 1/4 mile. I have always had a faster MPH (1-2 MPH) with all of my cars when spinning a lil and having a crummy 60 ft. When dead hooking the MPH will be slightly less but the car ET's better.
kinda like this . . . . . .
11.10 at 125 MPH with 1.65 60 ft
10.90 at 123 MPH with 1.55 60 ft
You still go from 0-125 MPH in 11.10 seconds but you cross the traps at a 10.90 and 123 MPH.
Lloyd
01-20-2008, 12:57 AM
#9
Oddly my car has always been somewhat the opposite. It might also be the track I run at most often and its traction.
If I get a crummy launch and come out soft, I lose my momentum from the get go. I have many passes of 1.7 or high 1.6 = 94mph. Low to mid 1.6s = 95-96. And 1.8+ = 93s but mostly due to no traction through part of the track.
I've only consistently 60' in the 1.5s on the bottle and even then it is spoty and track dependent. But my car always seemed to mph better if it was hooked well the whole time. Unless the nose was up from the get go it would never recover.
I'm going to pull the manifold on Monday and take a look from the top. I am 99% sure it is the gear, but we'll see. I'd love to get away with not pulling the motor, but I kind of doubt it will play out that way.
If I get a crummy launch and come out soft, I lose my momentum from the get go. I have many passes of 1.7 or high 1.6 = 94mph. Low to mid 1.6s = 95-96. And 1.8+ = 93s but mostly due to no traction through part of the track.
I've only consistently 60' in the 1.5s on the bottle and even then it is spoty and track dependent. But my car always seemed to mph better if it was hooked well the whole time. Unless the nose was up from the get go it would never recover.
I'm going to pull the manifold on Monday and take a look from the top. I am 99% sure it is the gear, but we'll see. I'd love to get away with not pulling the motor, but I kind of doubt it will play out that way.
01-20-2008, 02:03 AM
#10
Oddly my car has always been somewhat the opposite. It might also be the track I run at most often and its traction.
If I get a crummy launch and come out soft, I lose my momentum from the get go. I have many passes of 1.7 or high 1.6 = 94mph. Low to mid 1.6s = 95-96. And 1.8+ = 93s but mostly due to no traction through part of the track.
I've only consistently 60' in the 1.5s on the bottle and even then it is spoty and track dependent. But my car always seemed to mph better if it was hooked well the whole time. Unless the nose was up from the get go it would never recover.
I'm going to pull the manifold on Monday and take a look from the top. I am 99% sure it is the gear, but we'll see. I'd love to get away with not pulling the motor, but I kind of doubt it will play out that way.
If I get a crummy launch and come out soft, I lose my momentum from the get go. I have many passes of 1.7 or high 1.6 = 94mph. Low to mid 1.6s = 95-96. And 1.8+ = 93s but mostly due to no traction through part of the track.
I've only consistently 60' in the 1.5s on the bottle and even then it is spoty and track dependent. But my car always seemed to mph better if it was hooked well the whole time. Unless the nose was up from the get go it would never recover.
I'm going to pull the manifold on Monday and take a look from the top. I am 99% sure it is the gear, but we'll see. I'd love to get away with not pulling the motor, but I kind of doubt it will play out that way.
01-20-2008, 08:35 AM
#11
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not really refering to coming out soft, lugging, etc. More talking about having the tires hazeand loss of 60 ft due to spinning. I ahve always had auto cars and this has held true.
When trying to peddle the car or leave easy to keep from spinning, the MPH would always be down as mentioned.
I was talking about launching hard and keeping it nailed but having the tires spin a lil more than usual and how that effected my MPH.
Lloyd
When trying to peddle the car or leave easy to keep from spinning, the MPH would always be down as mentioned.
I was talking about launching hard and keeping it nailed but having the tires spin a lil more than usual and how that effected my MPH.
Lloyd
01-20-2008, 10:34 AM
#12
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not really refering to coming out soft, lugging, etc. More talking about having the tires hazeand loss of 60 ft due to spinning. I ahve always had auto cars and this has held true.
When trying to peddle the car or leave easy to keep from spinning, the MPH would always be down as mentioned.
I was talking about launching hard and keeping it nailed but having the tires spin a lil more than usual and how that effected my MPH.
Lloyd
When trying to peddle the car or leave easy to keep from spinning, the MPH would always be down as mentioned.
I was talking about launching hard and keeping it nailed but having the tires spin a lil more than usual and how that effected my MPH.
Lloyd
I know what you mean. I have always trapped better on my worst 60' times. Every car I've owned has been this way.
01-20-2008, 11:27 AM
#13
I run 7.20's @ 95mph in the 1/8th and run mid 11.30's at 118 in 1/4.
__________________
95 Pontiac Formula- Stock engine with ATI Procharger, Moser 12 bolt w/4:30 gears, Rossler trans, Neil Chance 4000 stall, M/T ET streets, 10.914@ 121.90mph, 1.452 60ft. GMHTP November 2010 Feature Car. Check it out at:
https://www.motortrend.com/features/...ebird-formula/
http://www.youtube.com/watch?v=abZ1z...ature=youtu.be
95 Pontiac Formula- Stock engine with ATI Procharger, Moser 12 bolt w/4:30 gears, Rossler trans, Neil Chance 4000 stall, M/T ET streets, 10.914@ 121.90mph, 1.452 60ft. GMHTP November 2010 Feature Car. Check it out at:
https://www.motortrend.com/features/...ebird-formula/
http://www.youtube.com/watch?v=abZ1z...ature=youtu.be
01-20-2008, 12:06 PM
#14
not really refering to coming out soft, lugging, etc. More talking about having the tires hazeand loss of 60 ft due to spinning. I ahve always had auto cars and this has held true.
When trying to peddle the car or leave easy to keep from spinning, the MPH would always be down as mentioned.
I was talking about launching hard and keeping it nailed but having the tires spin a lil more than usual and how that effected my MPH.
Lloyd
When trying to peddle the car or leave easy to keep from spinning, the MPH would always be down as mentioned.
I was talking about launching hard and keeping it nailed but having the tires spin a lil more than usual and how that effected my MPH.
Lloyd
Hopefully I can get it moving a bit faster once it is back together.
01-20-2008, 12:10 PM
#15
That is good to know. If the car went 12Xmph on motor I would be stoked. The th400 with the lack fo lockup can be a killer on the big end though.
I was planning a 6 hour trip to a 1/4mile track in Feb. but it will probably get canceled so I can fix the motor. =(
Guess I'll have to wait and see what it will really do on the big end. I'm happy with the 98+mph in the 8th though.
I was planning a 6 hour trip to a 1/4mile track in Feb. but it will probably get canceled so I can fix the motor. =(
Guess I'll have to wait and see what it will really do on the big end. I'm happy with the 98+mph in the 8th though.
01-20-2008, 02:44 PM
#17
That things got wicked 1/8 mph...I run 7.1s @ 96ish in the 1/8...1/4 mile times/mph in sig...I think you'll be 10.90s-11.10s with a better 60' at around 123-124 with everything perfect...Can't wait to see what you do with a full pass...Good luck...Ai seems to be making stuff that works...
--Alan
--Alan
01-20-2008, 03:34 PM
#18
Very nice numbers. My best N/A at 3700Lbs so far is a 96Mph in the 1/8th.
I just totally redid every thing in the car except the drive train. Trying to hit 3,3xxLbs.
Before I did my very best MPH runs came from 1.50 60ft spinning past the tree. I am figuring I could hit 140 If I get it to pull the top end better
On the oil Pressure problem. I had a cam go away years ago and it ate the teeth off the cam and oil pump drive. I caught it just in time!
Good luck man!
I just totally redid every thing in the car except the drive train. Trying to hit 3,3xxLbs.
Before I did my very best MPH runs came from 1.50 60ft spinning past the tree. I am figuring I could hit 140 If I get it to pull the top end better
On the oil Pressure problem. I had a cam go away years ago and it ate the teeth off the cam and oil pump drive. I caught it just in time!
Good luck man!
You going to make it out to the ltxshootout?