Should I set up my car for 1/4 mile or 1/8 mile racing?

[Andrew]

I really like the 1/4 mile but most of my racing is on 1/8 mile tracks. Should I gear the car for 1/8 mile and regear it for 1/4 mile tracks, or set it up for 1/4 mile and leave some on
the table for the 1/8 mile tracks?

[JamesB]

buy two sets of gears and we can change them out when you go 1/4 mile racing. Simple enough......

[SMOKEY]

If you can afford it, I say set it up for 1/8 mile since that is what is around here. Then re-gear it to run FFW in Ennis. I of course couldn't afford that, and would set it up for 1/4 mile racing and say screw it for the 1/8 mile.

[2001 GT]

Originally posted by JamesB
buy two sets of gears

[MattB]

Originally posted by 2001 GT


Put a 9" in it and have 2 different 3rd members. Swapping would be cake.

[Cmarsh93z]

What gears do you have in it now? What are you thinking of going too?

Chris

[Thehead]

i think i would try a different set of gears to see how it would react in the 1/8... the car might not like a smaller gear and those tires... might have to put a BIG tire under it to get it to hook if you swap it over for the 1/8th... or leave on less boost maybe???

[Andrew]

I had a 3.55 gear in it... I'm thinking of going with a 4.10 or 4.30 gear.

[cele3]

Gear it for the 1/8 so I don't have to listen to any excuses!

:p

[SNEAKY]

Originally posted by cele3
Gear it for the 1/8 so I don't have to listen to any excuses!

:p WELL, QUIT TALKING TO YOURSELF.

[cele3]

Originally posted by SNEAKY
WELL, QUIT TALKING TO YOURSELF.

You've got it all wrong....I have an excuse for the 1/4, not the 1/8!

And, don't think you're gonna get your grimy paws on Aimee's Mustang!

[SNEAKY]

Originally posted by cele3
You've got it all wrong....I have an excuse for the 1/4, not the 1/8!

And, don't think you're gonna get your grimy paws on Aimee's Mustang!


what are you refering to sir?

whistles innocently

[Darren M]

3.90's. Good for the corners. ;)

[2tonecpe]

I think you should stick to 1/8th mile. You seem to be bad luck,for others, in the 1/4. I would not go any higher than 73's though. The extra lug on the engine helps build boost.

[OrangeS10]

Gr8White went from .73's to 4.30's and took them back out. The turbo likes to work. My Powerstroke doesnt start running till High Gear. If you go to 4.30's, you will be making a mistake. Leave the .55's in it. Ask GR8White,he'll tell you!

[SNEAKY]

2.73:1

[Andrew]

I understand the concern about the load on the motor, but with an innovative boost controller I can run whatever boost levels I want at whatever time... it still oughtta pull pretty
well. I bet that Grant McReary doesn't have his car geared for 1/4 mile stuff...

[2tonecpe]

Originally posted by Andrew
I understand the concern about the load on the motor, but with an innovative boost controller I can run whatever boost levels I want at whatever time... it still oughtta pull pretty
well. I bet that Grant McReary doesn't have his car geared for 1/4 mile stuff...

Grant is also pulling gears. 5 of them.

[Andrew]

I'm pushing one gear! :D

[aggie97]

Gear for 160+ in the quarter. If you are going to travel to 1/4 mi tracks for FFW or other events, you will continually be changing gears......

Just put some good brakes on it so you don't have to be packing that parachute every 1/8 mi pass!!!!

[Andrew]

I only go to the 1/4 mile 2 times a year or so. It's not that hard to swap the gears out...

I have some aerospace rear brakes that I'm gonna put on.

Originally posted by aggie97
Gear for 160+ in the quarter. If you are going to travel to 1/4 mi tracks for FFW or other events, you will continually be changing gears......

Just put some good brakes on it so you don't have to be packing that parachute every 1/8 mi pass!!!!

[Da Prez]

i say go with gearing for 1/8 and swap to 1/4 gears when you need to...

[AL P]

Since you still have an 8.8, I'd buy another spool and put the other ring gear on it along with the bearings, then setup the pinion gear with the correct shim and bearing and have it sitting there with the carrier bearing races and everything, ready to drop in. I bet you could change them in an hour like that.

[Super Coupe]

With your power i would do a nine inch and just change 3rd members out. Simple and tough.

[GR8WHITE]

Originally posted by OrangeS10
Gr8White went from .73's to 4.30's and took them back out. The turbo likes to work. My Powerstroke doesnt start running till High Gear. If you go to 4.30's, you will be making a mistake. Leave the .55's in it. Ask GR8White,he'll tell you!


My car slowed down going from 3.73's to 4.30's and I lost 3-5 mph in the 1/8th, not to mention being absolutely impossible to 60' with. My 60's went from 1.37-1.39 to 1.49-1.55. Being limited to 6250 rpm didn't help matters, it's not good bouncing off the stock limiter, which takes fuel out:eek: After that I replaced my pill in the MSD to a 6200 to avoid this scenario!!
The car was revving too fast and not building boost like it should. I have 3.55's in now and will try them out this weekend...I think the car will pick up with the 3.55's and I can probably make it through the 1/4 as long as I don't run 150 mph, which isn't likely at 118-119 mph trap speeds through the 1/8th, gonna be close though....4.30's sound good (and probably would be great in a nitrous car), but in my case they were not a good choice. Live-n-learn....

[Turd]

Originally posted by AL P
Since you still have an 8.8, I'd buy another spool and put the other ring gear on it along with the bearings, then setup the pinion gear with the correct shim and bearing and have it sitting there with the carrier bearing races and everything, ready to drop in. I bet you could change them in an hour like that.

ding! ding! ding! WINNER!

[NDSP]

Originally posted by Andrew
I had a 3.55 gear in it... I'm thinking of going with a 4.10 or 4.30 gear.

Turbo cars like load, I would be willing to bet you would slow down in the 1/8th going to that short of gear. Didn't sharer go quicker in the 1/8th when he went with a taller gear? It would be an interesting experiment.

[Andrew]

In higher gears, as the motor is loaded harder, the turbo will make more boost. However, I can turn the boost up to compensate with my boost controller.

Originally posted by NDSP
Turbo cars like load, I would be willing to bet you would slow down in the 1/8th going to that short of gear. Didn't sharer go quicker in the 1/8th when he went with a taller gear? It would be an interesting experiment.

[spankustang]

Leave the gears you have in it now!!! I don't think it would be worth the money to swap

[Andrew]

The gears I have now are trash. I have to buy new ones.

[Boost Addict]

Originally posted by Andrew
In higher gears, as the motor is loaded harder, the turbo will make more boost. However, I can turn the boost up to compensate with my boost controller.

But Andrew,

If the motor is spinning fast enough that it won't make the boost (i.e. not enough load), then it won't matter what the boost controller is set on. I have the Inn. B.C. as well, and we're having severe problems getting it to follow (for other reasons, but it's not magic in it's ability to control boost). Everything else has to be perfect.

FWIW, Shane has 3.73's in his and it really needs a 3.55 (or 3.27!) I don't think you're 1/8th mile times are suffering with the 3.55 at all. With the API, the 3.55 and the turbo...that thing is going to sing...4.10 or 4.30's will kill that car.

JMO.

[SNEAKY]

Originally posted by Boost Addict
But Andrew,

If the motor is spinning fast enough that it won't make the boost (i.e. not enough load), then it won't matter what the boost controller is set on. I have the Inn. B.C. as well, and we're having severe problems getting it to follow (for other reasons, but it's not magic in it's ability to control boost). Everything else has to be perfect.

FWIW, Shane has 3.73's in his and it really needs a 3.55 (or 3.27!) I don't think you're 1/8th mile times are suffering with the 3.55 at all. With the API, the 3.55 and the turbo...that thing is going to sing...4.10 or 4.30's will kill that car.

JMO.
you are crazy

[Boost Addict]

Originally posted by SNEAKY
you are crazy

----Tommy Boy voice on---- Yea, well...you're the.....you're the crazy one. Shut up, Richard! ----Tommy Boy voice off----

Me being crazy has nothing to do with this post! lol

[NoSlix]

Even the turbocharged Outlaw 10.5 cars running 33" tall tires only run 4.10s for 1/8 mile racing. You will slow the car down in going to those lower gears. Tony is right about the load. More leverage means less load on the motor which means boost response will be slower and you'll have less boost........boost controller or not.

[SNEAKY]

Originally posted by Boost Addict
----Tommy Boy voice on---- Yea, well...you're the.....you're the crazy one. Shut up, Richard! ----Tommy Boy voice off----

Me being crazy has nothing to do with this post! lol

check your PMs

[STROKD]

3.27s!

I don't have a Turbo, but I went from 3.73s, to 3.55s, and the car was easier to launch, felt stronger top track, and feels like it builds boost sooner...:o

[Cmarsh93z]

Going to 4.10's or 4.30's is a MAJOR step backwards...you should be trying some more 3.55's or 3.27's.

Chris

[Andrew]

But IF I could make the boost that I wanted with a higher numerical gear ratio, would it be faster?

[SNEAKY]

i say put the 4.10- what ever in, try it, it goes slower in the 1/8 then you have proof. if it goes faster, then every one here is wrong.

it is only money, right.

[Boost Addict]

Originally posted by Andrew
But IF I could make the boost that I wanted with a higher numerical gear ratio, would it be faster?

On Drag Radials or fresh slicks?

On Drag Radials, I'd say no. Simply because the wheel speed will be WAY too high which would basically shock the tire too much.

On fresh slicks....????


Of course, all of this depends on IF you could make boost with those gears.

[Cmarsh93z]

All the fastest Drag radial cars are going to 3.27's...go 4.10's and prove them wrong!!!! :D

Chris
3.25's in a 9inch

[GR8WHITE]

There was really a big difference in how my car reacted- the boost difference (as far as coming into the boost) was very noticeable and my car absolutely fell on it's face (113-115 mph traps). It changed the car completely. Nobody is really mentioning the traction issues going to 4.30's, but it is significant. Perhaps I could have experimented with launch points, airbag etc, but from the way I was spinning it was hopeless. I am excited about getting out and trying the 3.55's!:D

[Tweaked Blazer]

Just do it Andrew, If I bet money I would say it would slow it down! I think you will be making a mistake if you go with 4.30's. Just my O2.

<--------------OrangeS10

[2tonecpe]

Hey hot link man.
Do you know Will with Chris Carlstroms old Fox body. He had a glide and 4.30's and took them out cause it was to violent. I believe he went down to 3.55's. Call Chris or Wes R and ask them about it.