New 1/8th mile times good for 11's?
11-03-2010, 07:58 PM
#1
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
New 1/8th mile times good for 11's? I ran sunday:
1.96 60ft.
5.303 330ft.
7.959 1/8th mile
94mph
Is it good enough for 11's? I am too far away from a 1/4 mile track to go try it out. The best pass before this one was 8.56 at 91 1/8th mile and 12.74 at 116 1/4 mile with a few less bolt ons and old tune. It is a bolt on car with a cam and is a m6 with 10 bolt and stock gear. What do you think it would go in the 1/4 mile now? Thanks for the input.
1.96 60ft.
5.303 330ft.
7.959 1/8th mile
94mph
Is it good enough for 11's? I am too far away from a 1/4 mile track to go try it out. The best pass before this one was 8.56 at 91 1/8th mile and 12.74 at 116 1/4 mile with a few less bolt ons and old tune. It is a bolt on car with a cam and is a m6 with 10 bolt and stock gear. What do you think it would go in the 1/4 mile now? Thanks for the input.
11-03-2010, 08:07 PM
#3
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
Heck I figured it would be pretty close as I dropped over half a second off the ET and gained 3 mph in just the 1/8th. I wish I was closer and had more time to go find out what it would do.
11-03-2010, 08:12 PM
#4
TECH Fanatic
Join Date: Jan 2010
Location: Euless Tx
Posts: 1,219
Likes: 0
Received 0 Likes
on
0 Posts
Wow, I didn't even notice that you were running an 8.56 in the 8th and a 12.74 in the 1/4. I was just going off of your new 1/8 mile time. Holy crap...The numbers aren't adding up for me for some reason.
11-03-2010, 08:20 PM
#5
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
haha. It is a combination of a big cam (ms4), a 10 bolt that im scared to leave too hard on and a super long stock gear. It is a bad combination for getting out of the hole but will move down the track pretty good past the 60 foot mark. It went 116 mph in the 1/4 with old setup so I think it might go around 119 or 120 if I get to take it back.
Trending Topics
11-06-2010, 09:31 AM
#11
TECH Resident
Thread Starter
iTrader: (12)
Join Date: Jul 2005
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
11-16-2010, 11:05 PM
#15
I would say multiply your 1/8 mile time by 1.56, this seems to be the closest to actually getting 1/4 ET, has worked for friends cars, I am hoping my times are the same as what they calculate out to be I should be in the 11.65-11.75 range with my best 1/8 ET being 7.49 at 92.5.
11-18-2010, 06:31 PM
#18
11 Second Truck Club
iTrader: (2)
Join Date: Jan 2002
Location: Missouri
Posts: 1,412
Likes: 0
Received 0 Likes
on
0 Posts
If you take your 1/4 mile time and divide it by your 1/8 mile time the number you will come up with will be from 1.52 to 1.56 for most cars. If you do this with several timeslips from the same car, you will see it is very close each time. This number (call it a constant if you will) can then be used to convert passes ran at an 1/8th mile track to see what it would have ran in the 1/4 on that pass. I have been doing this on many different vehicles for about 15 years and it is very close. Dig out your timeslips and do the math-it works. As long as the vehicle is fairly consistent .....no major traction issues etc.
With that said, the constant when calculating the OP's numbers is 1.488 I have personally never had a number in that range so I don't know how accurate it would be. I show his 7.959 to be a 11.84 in the 1/4. Will be interesting when he gets new 1/4 slips...
PS, this also works for converting MPH
With that said, the constant when calculating the OP's numbers is 1.488 I have personally never had a number in that range so I don't know how accurate it would be. I show his 7.959 to be a 11.84 in the 1/4. Will be interesting when he gets new 1/4 slips...
PS, this also works for converting MPH
11-18-2010, 06:39 PM
#19
If you take your 1/4 mile time and divide it by your 1/8 mile time the number you will come up with will be from 1.52 to 1.56 for most cars. If you do this with several timeslips from the same car, you will see it is very close each time. This number (call it a constant if you will) can then be used to convert passes ran at an 1/8th mile track to see what it would have ran in the 1/4 on that pass. I have been doing this on many different vehicles for about 15 years and it is very close. Dig out your timeslips and do the math-it works. As long as the vehicle is fairly consistent .....no major traction issues etc.
With that said, the constant when calculating the OP's numbers is 1.488 I have personally never had a number in that range so I don't know how accurate it would be. I show his 7.959 to be a 11.84 in the 1/4. Will be interesting when he gets new 1/4 slips...
PS, this also works for converting MPH
With that said, the constant when calculating the OP's numbers is 1.488 I have personally never had a number in that range so I don't know how accurate it would be. I show his 7.959 to be a 11.84 in the 1/4. Will be interesting when he gets new 1/4 slips...
PS, this also works for converting MPH
Pretty sure I seen this truck in GM hi tech right?
11-19-2010, 12:49 PM
#20
11 Second Truck Club
iTrader: (2)
Join Date: Jan 2002
Location: Missouri
Posts: 1,412
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, that was me. I might possibly be in Hot Rod and/or Car Craft also...my truck got a lot of attention at the LS Fest 'cause its just an old beat up truck with the paint falling off of it.
Speaking of my truck, and back on track with the topic of converting 1/8th mile to 1/4 mile, the "constant" I use for my truck is 1.556 I wanted to run the 13 second index class at the LS Fest but my local track is only 1/8th mile so I worked backwards to figure where I needed to be in the 1/8th to be 13 ohs in the 1/4. 13 divided by 1.556 is 8.354 So I tuned the truck until I had it running 8.37-8.39 My first pass down the 1/4 in that state of tune was a 13.03 so the math is pretty doggone close.
