Large diameter fuel line + Stock pump
Aussie - January 9th, 2015 at 08:55 PM
When running a larger diameter fuel line (8.0mm) in combination with a stock mechanical pump, will there be any negative effects on fuel pressure?
modnrod - January 9th, 2015 at 09:59 PM
From the tank to the pump, no.
From the pump to the carb? Possibly (but I've only ever used 5-6mm, so don't know).
psimitar - January 11th, 2015 at 12:07 AM
For such a short pipe run to the carb I doubt it's notice unless you're running bigger carbs but then again for bigger carbs most upgrade to an
electric pump for higher flow rates.
Aussie - January 11th, 2015 at 08:52 AM
| Quote: |
Originally
posted by psimitar
For such a short pipe run to the carb I doubt it's notice unless you're running bigger carbs but then again for bigger carbs most upgrade to an
electric pump for higher flow rates.
|
Yep for dual carbs. Will come out the pump on stock line and then flare up to 8.0mm before a pressure regulator (acting as t-piece) and then split off
to each carb. Stock diameter line will be limited to short sections to and from pump, rest will be 8.0mm. Hoping to maximise volume from stock
pump.
Want to stick with a stock pump for reliability/ease rather than elec.
psimitar - January 11th, 2015 at 08:25 PM
Stock pump can keep up with single venturi twin carbs like the ICT but I'm not sure for bigger twin venturi twin carb set ups.
Joel - January 11th, 2015 at 08:41 PM
A stock pump can keep a pair of IDAs fed.
They usually put out too much rather than not enough.
fish26 - January 11th, 2015 at 10:24 PM
^^^^^ X 2, the stock fuel delivery system has no problem feeding twin carbs, there are plenty of 12sec IDA cars running stock
Aussie - January 13th, 2015 at 01:20 PM
| Quote: |
Originally
posted by Joel
They usually put out too much rather than not enough.
|
That is what I am banking on, hence running a fuel reg to keep a check on pressure at higher RPM. Just hoping to get enough volume through.........
this is not a race motor so do not think there should be a problem.