86 buick grand national fuel tank capacity

Ffwd again and companies like Aeromotive started coming out with dedicated external fuel pumps that out flowed the single Walbro 255lph pumps. And A LOT of Turbo Buick racers went this way. Twin Walbro 255lph pumps on a custom hangar. Not long after this, Red Armstrong of Quad air debuted the Double Pumper setups. Which, at the time were the best solution.

This solution, especially on Turbo Buicks lasted for ALONG time, until the release of the first Generation of the Walbro 255lph fuel pumps. No high flow intank replacement existed yet, so A LOT of racers removed the stock pump, ran a piece of Fuel injection hose in place of where the stock intank pump used too reside and ran this pump with new fuel pump wiring. Fast fwd a few more years and Bosch came out with the external 286 series of fuel pumps. Many Buick shops used this bandaid on Turbo Buicks for years, until the Bosch pumps came out.

It was at best a gimmic bandaid that A LOT of racers turned to, simply because a bigger intank fuel pump didn't exist yet. It was used in conjunction with the stock intank pump to help 'boost' the pressure. This pump was smaller than the Bosch 286 and 044 external pumps and was typically installed inline on the feed line. mid to late 90's, their solution was the T-Rex external fuel pump. This was first done with Supercharger Mustang kits from Paxton and Vortech. Gather round children as Patrick retells storys from years gone by.īack before we had Walbro 340lph intank replacement pumps, the external Bosch pumps came out. (Patrick get's out his favorite pipe, pulls up his ole faithful rocking chair and has a seat) The last step, is to order a completely new pump and hangar assembly and replace all of the rubber hose butchering you have going on with that Bosch 286 series external pump. Then drop the tank and see what's left on the intank pump hangar. No matter what, that pump needs to be removed.

86 buick grand national fuel tank capacity