Drag Racing Tech
Sponsored by:
Sponsored by:

Optimized MT ET Drag

Thread Tools
 
Search this Thread
 
Old 03-26-2007, 10:15 PM
  #1  
10 Second Club
Thread Starter
iTrader: (25)
 
aNuBiS's Avatar
 
Join Date: Feb 2004
Location: Canada
Posts: 1,240
Likes: 0
Received 0 Likes on 0 Posts

Default Optimized MT ET Drag

I tried asking in the wheel/tire section but apparently these kinds of questions dont get answered there so I am trying here.

I tried searching around, but couldnt find anything consistent.

Those of you running Bogarts or similar 15" wheels, what size MT ET Drag's or similar slicks are you running out back (height/width plz) and same with front runners.

I have a 3.73 gear and an A4 trans. Looking obviously for the best size optimized for the drag strip.

Much appreciated
Old 03-26-2007, 10:33 PM
  #2  
TECH Fanatic
iTrader: (17)
 
SiL3NtXWS6's Avatar
 
Join Date: Jan 2005
Posts: 1,760
Likes: 0
Received 1 Like on 1 Post
Default

max power? Turbo, N20, or NA?

I run a 28X10.5S with 3.73s, M6
Old 03-27-2007, 07:12 AM
  #3  
TECH Senior Member
iTrader: (2)
 
gator's 99TA's Avatar
 
Join Date: Nov 2001
Location: Tampa Bay
Posts: 9,971
Likes: 0
Received 2 Likes on 2 Posts

Default

what is your mph goal? for most 28x10" slicks, an A4 needs a 4.10 gear. what is your converter?
Old 03-27-2007, 10:23 AM
  #4  
10 Second Club
Thread Starter
iTrader: (25)
 
aNuBiS's Avatar
 
Join Date: Feb 2004
Location: Canada
Posts: 1,240
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by SiL3NtXWS6
max power? Turbo, N20, or NA?

I run a 28X10.5S with 3.73s, M6
N/A (however I do have nitrous, but dont use it often)

Not sure on max power yet

Last edited by aNuBiS; 03-27-2007 at 08:44 PM.
Old 03-27-2007, 10:26 AM
  #5  
10 Second Club
Thread Starter
iTrader: (25)
 
aNuBiS's Avatar
 
Join Date: Feb 2004
Location: Canada
Posts: 1,240
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by gator's 99TA
what is your mph goal? for most 28x10" slicks, an A4 needs a 4.10 gear. what is your converter?

I got a PT4000

Would a 28x10 be ok with a 3.73?
Old 03-27-2007, 02:59 PM
  #6  
TECH Senior Member
iTrader: (2)
 
gator's 99TA's Avatar
 
Join Date: Nov 2001
Location: Tampa Bay
Posts: 9,971
Likes: 0
Received 2 Likes on 2 Posts

Default

if you plan on trapping more than 125 yes.
Old 03-28-2007, 12:44 PM
  #7  
Old Drag Racer
iTrader: (5)
 
Smokinstorm's Avatar
 
Join Date: Jul 2004
Location: Outer Banks of NC
Posts: 708
Likes: 0
Received 0 Likes on 0 Posts

Default

I've currently got the 26.4" x 10" x 15" Hoosier slicks mounted on my Bogarts with a 3.90 gear. I need a little more gear and also a little more traction so I'm switching to a 4.30 gear/spool and a 28" x 10" x 15" Hoosier slick. I'm running the same PT4000 converter and plan on trapping close to 130 with the gear/tire change as long as the weather holds out.
Old 03-28-2007, 03:37 PM
  #8  
10 Second Club
Thread Starter
iTrader: (25)
 
aNuBiS's Avatar
 
Join Date: Feb 2004
Location: Canada
Posts: 1,240
Likes: 0
Received 0 Likes on 0 Posts

Default

Let's say I stuck with the 3.73 gear, what would be the best tire possible for the highest trap speed and/or to keep me in the RPM range I want to be in while crossing the 1/4 mi
Old 03-29-2007, 06:00 PM
  #9  
10 Second Club
Thread Starter
iTrader: (25)
 
aNuBiS's Avatar
 
Join Date: Feb 2004
Location: Canada
Posts: 1,240
Likes: 0
Received 0 Likes on 0 Posts

Default

I dont have the ability to do the math to figure this out, would really appreciate the help from the guys on the board!
Old 03-29-2007, 06:49 PM
  #10  
TECH Senior Member
iTrader: (2)
 
gator's 99TA's Avatar
 
Join Date: Nov 2001
Location: Tampa Bay
Posts: 9,971
Likes: 0
Received 2 Likes on 2 Posts

Default

bro,. there are people that want to help you but notice you are not answering any of the questions people asking?

what is your power level?
what is your expected trap speed?
what is your expected ET?
what is your shift points?

there is NO SUCH THING as a best tire size for every combo.
Old 03-29-2007, 07:36 PM
  #11  
11 Second Club
 
1SlowFormula's Avatar
 
Join Date: Jul 2005
Location: West Linn, Oregon
Posts: 1,089
Likes: 0
Received 3 Likes on 3 Posts

Default

Originally Posted by aNuBiS
I dont have the ability to do the math to figure this out, would really appreciate the help from the guys on the board!
Use the calculator in my sig to help, there isn't one directly for you questions but you could use the optimum gear calculation and see what tire size gets you closest to 3.73 for the RPM's and Speed you want to cross the line at...
Old 03-29-2007, 09:53 PM
  #12  
10 Second Club
Thread Starter
iTrader: (25)
 
aNuBiS's Avatar
 
Join Date: Feb 2004
Location: Canada
Posts: 1,240
Likes: 0
Received 0 Likes on 0 Posts

Default

Very helpful thank you.

Wow, says that if I want to trap approx 121mph with approx 3.73 gears, I need a 26" tire, but I would be crossing the line at approx 6000rpm.

I would most certainly need more gear




All times are GMT -5. The time now is 08:45 PM.