Walbro 255lph intank + Walbro 255lph inline

Anyone running this setup or a similar for forced induction car? What is the max horsepower this would support on stock lines.

I will also be running siemens 83lb injectors and near 18-20psi of boost.

TIA.

Unless you run a Boost-a-pump, I think you will be running into problems. The 225lph intank with a BaP can support ~700rw (stock lines). You will need to raise the fuel pressure some as well.

Jason

I ran a walbro 255 with a K-bell booster. With stock supply lines from tank. A 383 w/ ATI-D1 12 psi. The motor was starved @ 5k rpm. Fabricated my own dual 255 pump bkt/ bulkhead tank plate and 2-3/8 dia Aeroquip socketless hose lines. Still running the K-bell boost on pump #1. No problems with delivery now. Running 72# msd injectors w/ acceleronics & lt1-edit.

I was looking at doing the racetronix kit with an boost-a-pump. But the price $220-240 for the racetronix pump and $240 for the boost-a-pump. At that cost i could almost do the dual intank pumps from racetronix.

I already have a walbro inline and was thinking of getting just the racetronix pump with harness for now. Then in the future adding a boost-a-pump and doing away with the inline pump.

Thanks

can't answer your question directly, but like Jason stated ...

I also have one Walbro 340M intank pump ($85 GP) with a voltblaster and stock lines and stock fuel rails. This was able to support 611rwhp with 72#/hr injectors. Many people who did this, like me, toss out the inline fuel pump (T-rex) that may cause a restriction since it flow less than a 340M but better than the stock FP in terms of pressure.

When you run things in series, your weakest link will determine your output.

Just want to make sure that you get the 340M which is a high pressure and high volume pump not just a high volume pump like a regular 255lph. This is more critical for boosted application. The Racetronix system uses the 340M as well.

cheers

Good reading:
http://forums.corvetteforum.com/showthread.php?t=1008469

I can send you a schematic and details of the bulknead for free if you want. I have no problems with the 2 pump mod.

Sure send it to prochargedlt1z@yahoo.com

Thanks!

I was looking at doing the racetronix kit with an boost-a-pump. But the price $220-240 for the racetronix pump and $240 for the boost-a-pump. At that cost i could almost do the dual intank pumps from racetronix.

I already have a walbro inline and was thinking of getting just the racetronix pump with harness for now. Then in the future adding a boost-a-pump and doing away with the inline pump.

Thanks

Cost effective and you get to keep the bucket.
Many people think they need a DP when in fact they do not.
A single in-tank system is good for apx. 550RWHP w/o a bootser in a LT1.