ZZP LNF/LHU High Pressure Fuel Pump Upgrade

Fueling - High Pressure Fuel Pump Upgrade
Fueling - High Pressure Fuel Pump Upgrade
ZZP LNF/LHU High Pressure Fuel Pump Upgrade
ZZP LNF/LHU High Pressure Fuel Pump Upgrade
ZZP LNF/LHU High Pressure Fuel Pump Upgrade
ZZP LNF/LHU High Pressure Fuel Pump Upgrade

ZZP LNF/LHU High Pressure Fuel Pump Upgrade

7 reviews
Regular price $499.99
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This is a bolt on larger mechanical fuel pump for your direct injection LNF, LHU, or LDK engine. This is an absolute must have for any LNF/LHU wanting more than 400whp on E85. We have tested this pump to well over 500 WHP using straight E85, without any indication of a drop in rail pressure all while using the early prototype modified fuel lobe cam, which only had around half the additional 'lift' when compared to our current off the shelf cams.

When coupled with our ZZP cams w/ fuel pump lobe, and Opel injectors, expect enough fuel system to support over 600 WHP on straight E85!

Don't be fooled by others selling off the shelf pumps with an adaptor plate. They have bent, and kinked the inlet line, which is restrictive, and use a wimpy spring which causes the pump to 'float'. ZZPerformance has developed a billet inlet adaptor that clocks the fuel inlet hose to the proper location which not only looks fantastic, it WORKS. We have also developed a new spring, specific to this application to help combat the float issues that others are seeing.

We now carry our HPFP upgrade in two fitments; one for the LNF Cobalt SS, and one for the LHU Buick Regal. If you have a Cobalt SS with an LDK/LHU, you will still choose Cobalt SS fitment. The Regal option pump has the inlet clocked differently to clear the charge pipe. On the Regal you will have to slightly bend your fuel line when connecting. 

Fits Cobalt SS, HHR SS, Pontiac Solstice GXP, Saturn Sky Redline, and Buick Regal.

We highly recommend our LNF fuel filter kit be used with our HPFP upgrade, can be found here.

Customer Reviews
4.9 Based on 7 Reviews
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Germany Germany

Must have to get the juice out of it.

Easy to install on a Opel Astra J OPC/VXR with minor modifications. It's a must have for at lease 500HP and above... the oem HP pump gave up at 480HP.

Scott C.
United States United States

Just what I needed

I was having fueling issues which my scanner showed was due to a failing stock pump. This pump fit great and my cobalt is running amazing. The only issue I had was the stock bracket that the hotside charge pipe bolts to needed to be modified to fit over the ZZP pump. After comparing the cost of stock replacement pumps to the ZZP unit, it was an easy decision to purchase this one.

Eduardo g.
United States United States


I had a couple of trouble installing the pump but at the end what a nice upgrade on my hhr ss .thanks for all the support on ZZP crew

ZZPerformance LNF High Pressure Fuel Pump Upgrade ReviewZZPerformance LNF High Pressure Fuel Pump Upgrade Review
Jason W.
United States United States

Definitely a need for full e85 tune.

I no longer get the P0087 or P0089 can’t remember which one. But the one that says fuel pressure to low/engine power reduced. Install was a cinch, However, make sure you have to pump in the right spot before completely bolting it on. Regardless what the instruction show you. It needs to be in a position where it clears the exhaust manifold first. Meaning that the pump needs to sit at an angle just slightly different than the instruction show you so that it clears the exhaust manifold. Then bolt it in place so you can pivot the pump where it needs to be! “Or it’s going to hit the exhaust manifold!” and you will have to chisel away at the exhaust manifold to clear it. Another option is to hopefully try no to strip the bolts to take it back out again. My bolts started to strip so I couldn’t take them back out to move the pump. I had to take a flat head screwdriver and chisel a little bit of the exhaust manifold aside to pivot the pump properly. This happened when following the instructions on positioning the pump 100%. I love it! Price is a little bit much but if you’re planning on running the E85 you know what you’re going to spend on the car.

Joseph H.
United States United States

Great quality

Awesome pump, easy to install! Great replacement for my failing factory pump.

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