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Wolf_Tm
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PostPosted: Tue Mar 01, 2011 5:35 pm 
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sklopendra wrote:

3400 cc/min / 4 = 850CC per injector at 2 bar of boost with no over supply, if you talking about 30% included performance reserve, than 850cc must be reduced to 650cc....


What ?!?!??!?!?!?!?
Injectors are NOT in this calculations, we are just talking about PUMP FLOW NUMBERS.

I suspect you didn't understand any part of the calculation 3400cc/min / 7.3 = Predicted BHP, based on BSFC.

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sklopendra
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PostPosted: Tue Mar 01, 2011 5:40 pm 
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Wolf_Tm wrote:

What ?!?!??!?!?!?!?
Injectors are NOT in this calculations, we are just talking about PUMP FLOW NUMBERS.

I suspect you didn't understand any part of the calculation 3400cc/min / 7.3 = Predicted BHP, based on BSFC.


injectors are feeding BHP, and injectors are feeded by fuel pump)

PS sorry Sunny for chatter in your topic)
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Wolf_Tm
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PostPosted: Tue Mar 01, 2011 5:51 pm 
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sklopendra wrote:
Wolf_Tm wrote:

What ?!?!??!?!?!?!?
Injectors are NOT in this calculations, we are just talking about PUMP FLOW NUMBERS.

I suspect you didn't understand any part of the calculation 3400cc/min / 7.3 = Predicted BHP, based on BSFC.


injectors are feeding BHP, and injectors are feeded by fuel pump)



Exactly, but it's a different story.

NOW we are talking about HP permitted by a pump flow number, that is to say BSFC.
If you don't know what BSFC, then this is another story...
like it is another story starting talking about injectors and injectors duty cycle etc etc...

Back on topic, saying that a "pump is good till 1.5 bar" is wrong, and, as I said before, it could be even good for 2 bars of boost, given that Supra pump provides more than 200 lph, and that 200 lph are SAFELY ENOUGH for much more than 400 bhp.

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Sunny
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PostPosted: Tue Mar 01, 2011 6:15 pm 
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Hi,

no problem, i love talking

but what is BSFC?

greetz

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sklopendra
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PostPosted: Tue Mar 01, 2011 6:24 pm 
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Wolf_Tm wrote:
Exactly, but it's a different story.
NOW we are talking about HP permitted by a pump flow number, that is to say BSFC.
If you don't know what BSFC, then this is another story...
like it is another story starting talking about injectors and injectors duty cycle etc etc...
Back on topic, saying that a "pump is good till 1.5 bar" is wrong, and, as I said before, it could be even good for 2 bars of boost, given that Supra pump provides more than 200 lph, and that 200 lph are SAFELY ENOUGH for much more than 400 bhp.

speaking on different languages....
i'm not talking about bhp at all. I have xxxxCC/min injectors, planning X bars of boost, also possible to predict duty cycle of injector "on top" and according to these figures it is possible to choose right type of pump, with no "predicted BHP". (fuel quality=detonation, CR, temps in intake...etc etc affects on fuel consumption as well, that's why i don't beleive in these "predicted bhp"). For example - on 2 bars of boost, 4*1000cc injectors operating at 85%....it is already out of range for supra pump, also we must remember, that performance of pump going down as its getting warmer.
Of course 400 bhp is ok even for walbro, supra pump is much better.

Sunny
yahoo knows everything :-)


Last edited by sklopendra on Tue Mar 01, 2011 6:26 pm, edited 1 time in total.

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Wolf_Tm
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PostPosted: Tue Mar 01, 2011 6:26 pm 
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Sunny wrote:
Hi,
no problem, i love talking


And especially understand what's correct and what's not.



Quote:
but what is BSFC?


You can have an idea of what BSFC is even here:

http://en.wikipedia.org/wiki/Brake_spec ... onsumption

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Sunny
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PostPosted: Tue Mar 01, 2011 7:05 pm 
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Hi,

thanks 8)
Wolf, do you use the supra pump with oem electric in the car?
is there any lower voltage on the pump (without resistor)?

greetz

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Wolf_Tm
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PostPosted: Wed Mar 02, 2011 8:28 am 
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Sunny wrote:

Wolf, do you use the supra pump with oem electric in the car?


Yes, it happened

Quote:
is there any lower voltage on the pump (without resistor)?


No, everything was fine

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Wolf_Tm
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Sunny
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PostPosted: Wed Mar 02, 2011 9:52 am 
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Hi Wolf,

thanks a lot 8)

greetz

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Sunny
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PostPosted: Sun Mar 20, 2011 6:35 pm 
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Hi folks,

i have a little question, i will go for a 2flow radiator which means i have to build a pipe like the rally cars to connect the water line on the downside of the radiator

is it possible to connect the return line like on the picture in front of the radiator, or must i go between radiator and thermostat?

Image

greetz

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Sunny
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PostPosted: Sun Mar 20, 2011 8:14 pm 
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Hi,

EDIT/

i think i found the answer, it is not possible as i shorten the hot water for in front of the backpressure, the return line have to be connected after the radiator so that the circle can work

greetz

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Sunny
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PostPosted: Mon May 09, 2011 7:12 pm 
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Hi,

little update

changed for a apexi 70mm exhaust pipework against 60mm blitz

Image

[img][img]http://img861.imageshack.us/img861/3486/apexi.jpg[/img][/IMG]

Toyo R1R on oem facelift-wheels (225/45 R16)

[img][img]http://img806.imageshack.us/img806/8858/toyo1k.jpg[/img][/IMG]

[img][img]http://img812.imageshack.us/img812/9052/toyo2.jpg[/img][/IMG]

next step is to reposition the battery, what fuse size would you guys advise to me?

greetz

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Last edited by Sunny on Tue May 10, 2011 7:09 pm, edited 1 time in total.

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dale
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PostPosted: Mon May 09, 2011 8:40 pm 
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hi sunny, how do you find the new toyo tread tyres?

are they much better than the T1-R compound and tread?

just wondering as i found the falken fk452 far superior on track and under hard use than the toyo T1-R tyres and the toyo where twice the price nearly.

very interested to hear how they compare to the T1-R
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Kris
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PostPosted: Mon May 09, 2011 9:13 pm 
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Battery fuse 100A or 80A - carry spares, just in case you start the car in gear! :P

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Sunny
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PostPosted: Tue May 10, 2011 2:38 pm 
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Hi,

kris, and want kind of mm² would you go?

i thought 35mm² with 120A fuse, do anyone know what kind of mm² the oem battery wire have?

dale, let me test the tyre some time expecially there is no rain test done yet
i'll give you a feedback and comparison soon, remember me if i should forget 8)

greetz

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