volvoguy23 Posted January 12, 2013 Report Share Posted January 12, 2013 Don't know if this would help or not, just a suggestion http://m.summitracing.com/parts/spe-29310 Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 12, 2013 Author Report Share Posted January 12, 2013 Hey, thanks for the link. I did look at their sheathed hose, but if you look at the specs, that's only rated for 50psi! This is what I'm looking at in terms of hardware to fit 3/8 hard line from the Aeromotive FPR to the 3/8NPT port on my rail: Just have to check locally before I spend 10 bucks to ship such small items Been reading up on JIC and AN fittings - it seems JIC & AN are the same 37º fittings, just AN are just manufactured to a higher standard/closer tolerances, unless I'm misunderstanding. I'll need to see if the standard flaring tool used for brake and fuel lines does 37º flares, that's what I will have access to. AN-06 & JIC-06 apparently are both 9/16-18, AN-05/JIC-05 would be 1/2-20, as TMM9 described in his RN thread. Quote Link to comment Share on other sites More sharing options...
Rod'sT-5 Posted January 12, 2013 Report Share Posted January 12, 2013 H, Maybe you can help me understand your thinking, From what I remember of the 2 pump systems from years back, the in-tank pump was a high volume, low pressure pump used to supply fuel to the main pump, which would raise the pressure as needed. The connecting hose was usually 15-17 mm low pressure hose. You are putting in the tank the DW300 pump which feeds to another external high pressure pump. The second pump is used to raise the fuel volume to the rail to keep fuel pressure from dropping. The second pump cant provide more volume than the in-tank puts out. It seems to me that the second pump can only restrict flow, raise fuel temp, etc. Especially with the small inlet on the second pump. I would think your new in-tank by itself should be enough, given it's specs. Am I missing something? Rod Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 12, 2013 Author Report Share Posted January 12, 2013 H, Maybe you can help me understand your thinking, It seems to me that the second pump can only restrict flow, raise fuel temp, etc. Especially with the small inlet on the second pump. I would think your new in-tank by itself should be enough, given it's specs. Am I missing something? Rod The old systems used 10mm (OD) nylon feed line at best, then 8mm forward of the external pump. Maybe I don't need an external, but I don't see it hurting. Perhaps you are on to something with this thought, however I haven't seen I mentioned in any of the dual pump setups I've looked at - some using dual 044's - which amount to much the same thing, I would suppose. You're thinking the pumps will be at odds with each other? The pump inlet is about 14mm (M18 union) - the elbow fed from the sender/ in tank (or straight barb, depending on how I orient it) is 8mm ID. I can't see it being an heating issue. The lines from the pump forward will all be 10mm (8mm ID), vs the stock 6mm, including the return. I can always create a line splice that eliminates the external pump, either for initial testing , or subsequent removal. Since the aeromotive FPR is 1:1 (I'm presuming without the 1bar cap of rise in pressure seen with stock FPR's, since it states up to 70psi to the rail)? I'm assuming I can actually lean out my WOT and upper fuel cells as a result. Since I can data log FP from the rail, it should be easy to tell if I have any issues running two pumps as planned. Quote Link to comment Share on other sites More sharing options...
Rod'sT-5 Posted January 13, 2013 Report Share Posted January 13, 2013 Its nice having all that data graphed, with all those sensors. Tho for me its confusing to look at, my eyes aren't as sharp as they used to be That 10mm line will be a big help. As you said in the other post, using hard line or braided SS is much more bulletproof and trouble free than rubber hose. By heat, I was thinking about the second fuel pump, just pumping, without any increase in volume or pressure. A coupling in the middle would make things easier later on. I've seen 2 pumps run in parallel, doubling volume before, but not 2 pressure pump in series. Just a note, I'm very impressed with your build, and your method of doing things!! Rod Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 13, 2013 Author Report Share Posted January 13, 2013 By heat, I was thinking about the second fuel pump, just pumping, without any increase in volume or pressure. A coupling in the middle would make things easier later Rod Thank you for the input. I will add a coupler (or alternate line) for bypassing the external pump - easier to plan for that up front. I don't want to end up with any unnecessary complications. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 13, 2013 Author Report Share Posted January 13, 2013 drawing for over/under motor hard line wondering whether to consider aluminum line - I can get that in 10' roll from Summit (100034ERL) I could also delete the right angle main pump outlet and use an M12 to AN-08 male fitting (that I got with the pump) then a Derale 98201 AN-08 female to 3/8" barb adaptor, so I can just run the outlet as a straight shot to the fuel filter.... 1 Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 13, 2013 Author Report Share Posted January 13, 2013 line routings sender current thoughts on overview 2 Quote Link to comment Share on other sites More sharing options...
D s50r Posted January 14, 2013 Report Share Posted January 14, 2013 I always look forward to seeing these drawings!! Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 15, 2013 Author Report Share Posted January 15, 2013 Added some bling today 1 Quote Link to comment Share on other sites More sharing options...
gmsgltr Posted January 15, 2013 Report Share Posted January 15, 2013 uh what? the fpr on the edge of the pic there? Quote Link to comment Share on other sites More sharing options...
andyb5 Posted January 15, 2013 Report Share Posted January 15, 2013 The oil caps Quote Link to comment Share on other sites More sharing options...
hotpantslovebug Posted January 15, 2013 Report Share Posted January 15, 2013 Clean look, bought or custom? Clean look, bought or custom? Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 15, 2013 Author Report Share Posted January 15, 2013 uh what? the fpr on the edge of the pic there? Dual IPD filler caps, lol 1 Quote Link to comment Share on other sites More sharing options...
B Mac Posted January 16, 2013 Report Share Posted January 16, 2013 The rear cap is backwards. No good. Quote Link to comment Share on other sites More sharing options...
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