I'm surprised you don't opt to run a dual feed rail and integrate a fuel damper & pressure regulator towards the centre of the rail. Is there any concern with doing this on an odd numbered rail (3 injectors one side, two on the other)?
What a Legend! Love your videos, the music, the editing; but I'm here for the one and only Dave Rowe! He is so calm and relaxed, a true master of his art! THANK YOU!!!
Captured every essence possible with humour, information & confidence! The music is the cherry on top especially the cinematic where Dave is working on the car! So cool.
Will the rose joints on the antiroll bar not bind up running them at the same angles ? I had this problem on my own car..... i now run them 90° out to each other.
.... im going to say it .... can you put a RECARO seat in please ... just as a dummy one ... EVERYONE REALLY wants to see a seat in it ... please !!!! 🥰
Sound have mentioned one benefit of having multiple switchable pumps and speed control pumps reduces load on both the electrical system and fuel when not needed in maximum volume… load is heat, over heating the fuel is a real problem on very high horsepower setups 👍
This is an interesting build and a worthy distraction ;-). It will be interesting to see how the slightly longer (by 19.6 cm) wheel base of the "S" compares to the "B" car in "rotation" in rally use. Is the engine canted at +/-27° as with the Group B car?
The controller is needed as the ProTech pumps operate on 3 wires. The controller can then be triggered with on/off control or PWM control. So the m1 will control the pumps speed this way.
Hi Dave: Tech question for my own understanding: I thought that the turbo smart pressure reg is boost referenced but at a linear rate: so you won’t get more fuel into the port at boost; just maintain the same flow by maintaining a steady differential fuel pressure? Please confirm or explain if possible. Flow can be increased over the 1,100 rating by other means such as 4 bar base over 3 bar as you are running.
@@EPSDaveRowe this is where I have a flaw in my understanding. My understanding: 3 bar fuel pressure, 3 bar inlet pressure. Open the injector, pressures equal across the injector orifice = next to no flow as no pressure difference. Now I’m lost. Classic start to a Sunday hangover 🤕
@@EPSDaveRowe this is where you are wrong. The injector is nothing else but a valve. It opens for fuel flow. If you have 5bar fuel pressure and 2bar manifold pressure you will have a 2bar force acting against the 5bar flow. So basically you have a flow of 3bar which in your case is 1100cc. ALSO you never run the injectors with 100% fuelduty.
Dave, while I'm aware that many of the larger injectors are geared around high-flow delivery of E85 or methanol and therefore are unsuited to extended linearity at low fuel mass on gasoline and cannot provide stable stoichiometric idle on this fuel. In the case of Injector Dynamics their injectors above the ID1300 XDS are not recommended for gasoline or racing gasoline. Is this the reason why you're choosing to push the 1100cc injectors hard at 4 Bar rather than move to a higher flow injector?
As far as I know, as a non-automotive wizard, road cars run a Lambda 1, whereas you mentioned. Lambda 0.8. Does that mean you run leaner or richer ? Again, with my knowledge, lean isn’t good and can ruin an engine in a short time.
I was always taught that you have to raise the fuel pressure 1:1 with manifold pressure to have the flow rate stated on the injector data. As 1 bar of manifold pressure would make it harder to spray into so you’d make the fuel pressure 1 bar higher to insure that the injector is 3bar higher. Or are you going to run a rising rate pressure regulator.
Great project and video. Very much looking forward to the rest of the series!
Sadly people like ken block , sabine schmitz ,and true legends alike didnt get to see this amazing car
I'm surprised you don't opt to run a dual feed rail and integrate a fuel damper & pressure regulator towards the centre of the rail. Is there any concern with doing this on an odd numbered rail (3 injectors one side, two on the other)?
Great program and build project. Thanks for sharing
Thanks, this info shows your expertise. I am impressed.
Very interesting, simply amazing! ✌🏻✌🏻✌🏻
What a Legend!
Love your videos, the music, the editing; but I'm here for the one and only Dave Rowe!
He is so calm and relaxed, a true master of his art!
THANK YOU!!!
can't wait until the car is on the street
Captured every essence possible with humour, information & confidence! The music is the cherry on top especially the cinematic where Dave is working on the car! So cool.
Will the rose joints on the antiroll bar not bind up running them at the same angles ? I had this problem on my own car..... i now run them 90° out to each other.
Fantastic build a quality car 👍
I really enjoy watching your videos! So much passion! And thanks for sharing your know how!
Progress is looking good! Would be keen to see the programming of the Motec system to control the fuel pumps.
how far will the car get on that tank at full chat?
Always Great. Loving the build and details
👌sweet and interesting to see and learn about the fuel system and looking forward to the big brake kit unrivalled 👍
.... im going to say it .... can you put a RECARO seat in please ... just as a dummy one ... EVERYONE REALLY wants to see a seat in it ... please !!!! 🥰
Sound have mentioned one benefit of having multiple switchable pumps and speed control pumps reduces load on both the electrical system and fuel when not needed in maximum volume… load is heat, over heating the fuel is a real problem on very high horsepower setups 👍
Yeah 100% not forcing excess fuel around for no reason is only a good thing
😎🏆
It will be amazing when the car is a rolling chassis/shell
This is an interesting build and a worthy distraction ;-).
It will be interesting to see how the slightly longer (by 19.6 cm) wheel base of the "S" compares to the "B" car in "rotation" in rally use.
Is the engine canted at +/-27° as with the Group B car?
I did ask dave the wheelbase of the car . Its nice to now know the wheelbase of the car
@@dspencer8827 Fun fact: the FIA papers for the Group B car are in the FIA database. This is worth a look. The "S" can be found elsewhere.
Is this vehicle going to be driven hard or is it just a show case of what you guys can do? Love the build everything about it good luck!
For sure as I will be driving this car hard. It would be rude not to 👌
Cant the MoTeC PDM directly PWM the pump without the external controller?
No PDM can PWM the Brushless pump as it's an AC three phase waveform. The speed controller changes it from a DC input to AC control.
The controller is needed as the ProTech pumps operate on 3 wires. The controller can then be triggered with on/off control or PWM control. So the m1 will control the pumps speed this way.
@@Benchmark413 ahh ok
@@EPSDaveRowe ahh gotcha!
Do you use custom MoTeC firmware or the generic GP?
I am going to use just the Std GPRP-Pro Software for the project,
Ists very interesting. Whitch fuel pump and injectors you use?
Beautiful build can't wait to see finishd
dog?
lol I will make sure he is in E10 👍
Great stuff Dave. Will you be taking the car to any shows/events this year? Would love to see it 👍
Yeah for sure as soon as its done I want to get to some shows for sure.
And where`s the container for fuel cell? fuel cells like this must be in container, in ATL is available blueprints for each cell dimensions.
Hi Dave: Tech question for my own understanding:
I thought that the turbo smart pressure reg is boost referenced but at a linear rate: so you won’t get more fuel into the port at boost; just maintain the same flow by maintaining a steady differential fuel pressure? Please confirm or explain if possible.
Flow can be increased over the 1,100 rating by other means such as 4 bar base over 3 bar as you are running.
The pressure inside the intake doesn't have an effect on the fuel flow when leaving the injectors.
@@EPSDaveRowe this is where I have a flaw in my understanding. My understanding: 3 bar fuel pressure, 3 bar inlet pressure. Open the injector, pressures equal across the injector orifice = next to no flow as no pressure difference. Now I’m lost. Classic start to a Sunday hangover 🤕
@@EPSDaveRowe this is where you are wrong. The injector is nothing else but a valve. It opens for fuel flow. If you have 5bar fuel pressure and 2bar manifold pressure you will have a 2bar force acting against the 5bar flow. So basically you have a flow of 3bar which in your case is 1100cc. ALSO you never run the injectors with 100% fuelduty.
That fuel system deep-into technical stuff was 🔝🔝🔝!!! Please keep on so 😊
Dave, while I'm aware that many of the larger injectors are geared around high-flow delivery of E85 or methanol and therefore are unsuited to extended linearity at low fuel mass on gasoline and cannot provide stable stoichiometric idle on this fuel. In the case of Injector Dynamics their injectors above the ID1300 XDS are not recommended for gasoline or racing gasoline. Is this the reason why you're choosing to push the 1100cc injectors hard at 4 Bar rather than move to a higher flow injector?
🔥🔥 It's progressing at a pace!
At full Power It Will dry a full tank in about 10 min...probably less than that...
Full 60 liters fuel, gasoline weights pretty much 45 kg. So it is lighter than water.
Great work Dave! 👍🏻
Thanks 👍
As far as I know, as a non-automotive wizard, road cars run a Lambda 1, whereas you mentioned. Lambda 0.8.
Does that mean you run leaner or richer ?
Again, with my knowledge, lean isn’t good and can ruin an engine in a short time.
Yes for sure Lambda 1 is lean for a racecar, thats why I use .80 as a target for the fuel system calculations.
whoaaah, nice! :)
I was always taught that you have to raise the fuel pressure 1:1 with manifold pressure to have the flow rate stated on the injector data. As 1 bar of manifold pressure would make it harder to spray into so you’d make the fuel pressure 1 bar higher to insure that the injector is 3bar higher. Or are you going to run a rising rate pressure regulator.
Thats what we have
Higher than 1:1?
Hi dave what size AN fuel inlet at the rail would you be using
Using an-8 for the rail and hoses and an-6 for the return hose
Please lose the intro / exit music. Does make me fast forward as im not 20. great stuff apart from that though
When the car will be ready and running it will blow a great music for all ears no doubt giving all ear-gasms..
We get it you’re old and complain, if you don’t like it skip but your taste seems rather boring. The music adds to the video and makes it engaging!
1:15 / 18:40
Minus ears😩