CARB or EFI and WHY??????????

[85_SS_302_Coupe]

Because they are at WOT for the entire race! Lol…seriously though, if they needed the extra control (cough..F1 racing…cough) you would see EFI setups in NASCAR. No, it's not the only reason…I'm sure cost too has a great deal to do with it.

BINGO! COST! Not to mention if you want a level playing field where it's team vs. team, then make them manage their engine themselves and not by a computer.


I think they will go to EFI eventually, if nothing more than for safety reasons. I will say i've seen a lot more engine fires with carbs simply because of how the fuel is distributed. F1 ran Webers for most of its history before going to EFI, and i'd be willing to be that safety had a huge role in that switch.

 

[Modular2v]

I don't post up here very often but this thread caught my eye.
I run a 327 10.8-1 comp AFR 185 heads 2.02int 1.60 exh, big cam (won't reveal specs LOL) Victor 5.0 intake, 80MM TB,30lb INJ, Anderson PMS and a bunch of other related crap.
with this combo put 408hp 385 tq to the rear wheels. Runs 11.02@124 N/A
Switched over to Victor JR intake, Quick Fuel pseries 750, same ingition as before,no other changes.
With this setup put down 425hp and 420tq (have not been to the track yet, weather down here sucks!!)
This car sees street time but is mainly a track car. No real big diff in drivability.
Why did I do the switch to carb?
Well I grew up tuning carbs and it's what I know. The EFI was nice but I can feel the car pull harder up in the higher RPM range. I shift @ 7200.

Obviousley (sp) I don't care about mileage.
P.S. when it was EFI it was tuned by the leader in EFI tuning for NMRA. name withheld.

damn good times with the carb it will see 10s!

 

[Modular2v]

Because they are at WOT for the entire race! Lol…seriously though, if they needed the extra control (cough..F1 racing…cough) you would see EFI setups in NASCAR. No, it's not the only reason…I'm sure cost too has a great deal to do with it.

kind of the point us carb guys are trying to make

on a side note....i use to be a hardcore EFI guy and use think of carbs as "controlled fuel leaks" lol

 

[Busted07]

<inserts mandatory post from the legend once known as Stroked&Blown>

Whats a cARbInAtOr ??????

 

[millhouse]

kind of the point us carb guys are trying to make

on a side note....i use to be a hardcore EFI guy and use think of carbs as "controlled fuel leaks" lol

Yeah…but you can't directly relate a NASCAR's budget to that of the average car guy….nor can you relate the budget of the average F1 team to that of NASCAR.

Just a fun tidbit of info…I do believe Ford used the same EEC IV computers used on the mustangs for their F1 cars. I kind of gives you some insight as to how versatile fuel injection can be.

 

[Disturbed90gt]

ill stick with my "controlled fuel leak". i was gonna build my 91 thunderbird with the EFI setup but then i started looking at priced and well..........the car is still stock. my mustang has been converted for that reason

 

[25thmustang]

Im just glad I would rather spend a little more to get a little more... I like jumping in on 20 degree days before a cold track event and having the car start right up. Getting to the track where it is 60 degrees and knowing the cars going to run right, and not having to open the hood minus putting ice on the intake. Not only that but good gas mileage to and from the track as well.

I am also the guy who plans to put AC back in the car sometime in the future, add some different newer seats (I already have 01 Leather seats), navigation, sound dedening and all the comfort stuff. Just because its a Mustang doesnt mean it has to get poor mileage, continuousely need work and tuning, and be uncomfortable!

 

[86bluecobra]

I guess my car was basically built for fun in the summer so the carb was the way to go. It is a pain to let it warm up but thats ok.

As for having to tweak the carb for different weather conditions I'm not going to buy the line you guys are using. I don't touch my carb all that much and I live in western canada and we see huge swings in the weather temp. Maybe it isn't always optimum power but you could never feel the difference in the seat of your pants.

 

[86bluecobra]

I don't post up here very often but this thread caught my eye.
I run a 327 10.8-1 comp AFR 185 heads 2.02int 1.60 exh, big cam (won't reveal specs LOL) Victor 5.0 intake, 80MM TB,30lb INJ, Anderson PMS and a bunch of other related crap.
with this combo put 408hp 385 tq to the rear wheels. Runs 11.02@124 N/A
Switched over to Victor JR intake, Quick Fuel pseries 750, same ingition as before,no other changes.
With this setup put down 425hp and 420tq (have not been to the track yet, weather down here sucks!!)
This car sees street time but is mainly a track car. No real big diff in drivability.
Why did I do the switch to carb?
Well I grew up tuning carbs and it's what I know. The EFI was nice but I can feel the car pull harder up in the higher RPM range. I shift @ 7200.

Obviousley (sp) I don't care about mileage.
P.S. when it was EFI it was tuned by the leader in EFI tuning for NMRA. name withheld.

Very nice times and hp. How streetable is the car? Have enough vacuum for brakes? What kinda suspension are you running?

 

[Modular2v]

Yeah…but you can't directly relate a NASCAR's budget to that of the average car guy….nor can you relate the budget of the average F1 team to that of NASCAR.
Just a fun tidbit of info…I do believe Ford used the same EEC IV computers used on the mustangs for their F1 cars. I kind of gives you some insight as to how versatile fuel injection can be.

Your right nascar has ALOT more money than any given combined number of us on this board! So.......why dont they use efi?

 

[Shamus O'toole]

Very nice times and hp. How streetable is the car? Have enough vacuum for brakes? What kinda suspension are you running?

Manual Brakes, no power steering. D&D Kmember,maximum adj struts, QA1 Adj Shocks, Air bagged, Adj upper and lower control arms. Spool, 33 spline axles,4:30 gears. Not a car I would want to drive every day. But it stops great,holds a straight line, not to fun around corners, But I can drive her to anycar show I want to, and I would take her on the Hot Rod power tour if I had the chance and a fuel truck to go with me!!!LOL

Realy is a fun car. Thats whats its all about.

 

[jrichker]

Your right nascar has ALOT more money than any given combined number of us on this board! So.......why dont they use efi?

NASCAR is like any other sanctioning body, they make the rules for the race cars. EFI is probably barred by a rule of one sort or another. Some local tracks even bar the use of Cleveland style heads - it's an unfair advantage.

NASCAR is a perfect environment for carbs: flat out, minimal time spent in mid RPM range, and fuel consumption is a secondary consideration.

Take an endurance road race like Le Mans and the environment is perfect for EFI: varying speeds from a slow turn to a flat out straightaway, lots of time spent running up and down the RPM range and fuel economy is important to limit the number of pit stops.

 

[Modular2v]

NASCAR is like any other sanctioning body, they make the rules for the race cars. EFI is probably barred by a rule of one sort or another. Some local tracks even bar the use of Cleveland style heads - it's an unfair advantage.

NASCAR is a perfect environment for carbs: flat out, minimal time spent in mid RPM range, and fuel consumption is a secondary consideration.

Take an endurance road race like Le Mans and the environment is perfect for EFI: varying speeds from a slow turn to a flat out straightaway, lots of time spent running up and down the RPM range and fuel economy is important to limit the number of pit stops.

The whole point i and my fellow carb users try to make is carbs are ideal for hard rpm all out performance and they also happen to be the cheapest way to build power. I fully support your statements.......Nascar and le mans, nobody here is likely to ever see it! Most of us here are into straight line point a to point b performance. So efi or carb.....its purely personal choice