Stock fuel lines, max flywheel HP?
06-17-2012, 11:11 AM
#1
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Stock fuel lines, max flywheel HP? What's the max flywheel HP the stock lines will support. I should be around 550 RWHP. That is through TH350 W/ 5400 stall and 9". So I'm figuring close to 700 FWHP.
06-17-2012, 08:54 PM
#4
The most I ever got out of my stock setup was 525 rwhp with a boost a pump/hotwired. I probably would have got more out of it if I had a front mount regulator/return line. My stock fuel system was dropping a lot of fuel pressure when I got into boost from 60 psi to 40-25. It also seemed like the fuel got extremely hot and I was changing out pumps every few months. It got to the point I had to cut out a trap door. 
06-19-2012, 10:47 PM
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i have made 580 on a mustang dyno with just a single walbro 255 no boost a pump using my own wiring on 12psi. if you're having trouble change your fuel filter.. i changed it before my dyno session and had to dramatically reduce my ve table hahaha. stock fuel system is awesome. i have run it up to 18psi on the single 255 pump and was still upper 11's afr, probably close to being maxxed but still works like a champ. I added methanol and its down mid lower 11's with the methanol on. i have my stock pump hooked up to piggy back but have yet had the need to turn it on. sometimes things ls1tech says wont work, will.
fwiw on 17-18psi i went 104 mph in the 1/8th with ~3900lb raceweight, and spinning to mid track lol. im sure with a good launch and good traction would have gained a few mph., track is cheap and doesnt want to spray compound. as long as the drag cars are hooking they dont care.
just for ***** heres the run notice the spinning lol. 2 bar map sensor is maxed haha
fwiw on 17-18psi i went 104 mph in the 1/8th with ~3900lb raceweight, and spinning to mid track lol. im sure with a good launch and good traction would have gained a few mph., track is cheap and doesnt want to spray compound. as long as the drag cars are hooking they dont care.
just for ***** heres the run notice the spinning lol. 2 bar map sensor is maxed haha
Last edited by got-a-ls1; 06-19-2012 at 10:58 PM.
