Intake design for EFI

[dieselgeek]

Re: Intake design for EFI

<contemplates the team of freaks, effort, and programming it's going to take to run the first DIY variable cam, DI engine...>

[dieselgeek]

Re: Intake design for EFI

most of the newer variable cam timing systems are using a PWM input. Motec and Megasquirt and AEM already support these kinds of outputs (physically, but the programming logic specific to cam tuning/mapping aren't in place). Ford IACs are PWM input...

the real kicker is going to be with the pneumatic or electric valvetrain actuation. Imaging being able to map your cam specs based on load, throttle position, RPM? (just like right now, you are mapping "jets" for specific load and RPM)

[BOWTIE6872]

Re: Intake design for EFI

A carb needs a Plenum!!!!!! any N/A motor does, to use the wave to your advantage

8 webbers dont
carb doesn't need a plenum,, the engine does.. as 8 cyl must share 2 barrels and 4 at wfo.

[dieselgeek]

Re: Intake design for EFI

A carb needs a Plenum!!!!!! any N/A motor does, to use the wave to your advantage

8 webbers dont
carb doesn't need a plenum,, the engine does.. as 8 cyl must share 2 barrels and 4 at wfo.

8 webers DO have plenum volume beneath them.

[JeffMcKC]

Re: Intake design for EFI

A carb needs a Plenum!!!!!! any N/A motor does, to use the wave to your advantage

8 webbers dont
carb doesn't need a plenum,, the engine does.. as 8 cyl must share 2 barrels and 4 at wfo.

I am afraid 8 webers dont make big power either :'( I am talking about making max power not just looking cool or Old School stuff :

[horsewidower]

Re: Intake design for EFI

They make the biggest power available on a NA 2.3 SOHC Ford ;D

I guess its a matter of application.



Well...except for efi. ;)

[dieselgeek]

Re: Intake design for EFI

They make the biggest power available on a NA 2.3 SOHC Ford ;D

I guess its a matter of application.



Well...except for efi. ;)

Perhaps a big peak number. But I doubt they'd make the most average power...

[horsewidower]

Re: Intake design for EFI

Yeah, yeah I know.

I'm on your side, ;) remember.

[JeffMcKC]

Re: Intake design for EFI

They make the biggest power available on a NA 2.3 SOHC Ford ;D

I guess its a matter of application.



Well...except for efi. ;)

I would not agree with that statement you should look at a comp eliminator car, dont think you will find any webers on them and plenty of any kind of four cylinders

[Caveman]

Re: Intake design for EFI

They make the biggest power available on a NA 2.3 SOHC Ford ;D

I guess its a matter of application.



Well...except for efi. ;)

I would not agree with that statement you should look at a comp eliminator car, dont think you will find any webers on them and plenty of any kind of four cylinders

Hmmm... F1 in Europe, back when, I think most cars had multi-carb setups with no plenum, ie., each cylinder got one barrel, and one only; that is until they switched to EFI. ;D

Curious why more 'American' racers didn't go with multi-carbs.... probably because one BIG one is easier to tune, and no carb-syncronizing required...

[CTX-SLPR]

Re: Intake design for EFI

They make the biggest power available on a NA 2.3 SOHC Ford ;D

I guess its a matter of application.



Well...except for efi. ;)

I would not agree with that statement you should look at a comp eliminator car, dont think you will find any webers on them and plenty of any kind of four cylinders

Hmmm... F1 in Europe, back when, I think most cars had multi-carb setups with no plenum, ie., each cylinder got one barrel, and one only; that is until they switched to EFI. ;D

Curious why more 'American' racers didn't go with multi-carbs.... probably because one BIG one is easier to tune, and no carb-syncronizing required...

That would be no common plenum. There still is a plenum under the carb it just doesn't have to share it with another cylinder.

[Matt Cramer]

Re: Intake design for EFI

Hmmm... F1 in Europe, back when, I think most cars had multi-carb setups with no plenum, ie., each cylinder got one barrel, and one only; that is until they switched to EFI. ;D

Curious why more 'American' racers didn't go with multi-carbs.... probably because one BIG one is easier to tune, and no carb-syncronizing required...

Also, a drag car only has to idle and run at wide open throttle - things like throttle response aren't quite the same issue, and independent runner carb setups do quite well at things like throttle response and accuracy. But if you just need to run it flat out, you can get the same amount of power with just one or two carbs for less money.