12 replies to this topic

[Hector Bonilla]

I have a 1993 Miata and I will be racing an endurance race in four weeks. I need the car to run for two hours on one gas tank to reduce the number of stops. I have already bought a 1995 gas tank with 12.7 gallons buti need one more gallon to achieve my goal.

Any thoughts out there?

I heard about bloating the tank with air but I have my doubts it will work.

Thanks
Hector

[Rob Burgoon]

huge fuel lines?

 

How about a milk jug in the cabin? ;-D

[john mueller]

I have a 1993 Miata and I will be racing an endurance race in four weeks. I need the car to run for two hours on one gas tank to reduce the number of stops. I have already bought a 1995 gas tank with 12.7 gallons buti need one more gallon to achieve my goal.

Any thoughts out there?

I heard about bloating the tank with air but I have my doubts it will work.

Thanks
Hector

 

Hector;

Depending on the rules this may be illegal or have alternative filling rules for any volume above the OEM capacity .  I know it is the case in NASA's endurance races.  I've also seen folks install a proper fuel cell as large as 20gal, but the fill rules still usually apply.

[john mueller]

huge fuel lines?

 

How about a milk jug in the cabin? ;-D

 

Huge as in diameter, length or both!  ;-)

[Bench Racer]

Huge as in diameter, length or both!  ;-)

Figure that out, they are chick cars, correct.

[ner88]

If you are running the car in SM it's probably not legal to change or expand the tank beyond OEM.

Read the rules!

At The Devil in The Dark @ NJMP they classified all Miatas in E3 as they did ITA cars.

If we had run as an ITA car a fuel cell is legal, the sups allowed any cell up to 25 gallons.

[davew]

Two words

 

SHORT

 

SHIFT

 

Shifting at normal +/- 7000 will get you about 1:40. Short shift to 6000 and you can get 2:30 easy.

[Hector Bonilla]

I guess it will have to be short shifts, thanks for the help.

[KW78]

I can't believe this topic, it was covered 23 years ago.  Harry has the answer.  Harry always has the answer.  Better try the oil pan thing too.

 

[Johnny D]

How longs your race?

There's alot you can do.

Have you watched a NASCAR race lately?

J~

[RazerX]

bring some extra parts in your car, throw them out when you need a yellow...

[Johnny D]

What I meant by NASCAR is, on road courses, basic strategy is they pit as soon as their in their fuel window, figured out to the end of the race, as others pit later and the yellows come out they catch back up and gain positions. They run the race backwards.

 

"There's a lot you can do"

The situation is fluid, take yellows, you can take advantage or be disadvantaged or maybe no advantage at all by the end of the race.

 

They're many strategies, and all the best laid plains may all go to crap or help you win. The race may fall in your lap or out.

It's just fun trying to figure out which one is best at a given moment, at least for me.

J~

[john mueller]

Or have a gas consumption wizard on your team...  The do exist.