LSX Intake Manifold and Fuel Rails

Looking for some bolt on horse power, after looking at what some people had to say in www.ls1tech.com the F.A.S.T. Intake manifold looked the business, fine bit of craftsmanship, wouldn't look complete with the stock fuel rails so I invested in some F.A.S.T Fuel Rails which can deliver plenty of fuel for my needs, think I read some where in the region of 2000hp, so plenty of room for expansion. Why go for 78mm F.A.S.T. intake manifold when a 90mm is available? well the 78mm with fit the stock throttle body, I didn't have the funds to add a 90mm throttle body to the order. The intakes are identicle apart from where the throttle body mounts. With the mods I had and was planning to do the stock TB (Throttle body) and 90mm TB differences wouldn't make much performance difference. However although you dont tihnk you need more power, the time will come when you do. The new heads and cam which are now on the car, would have benifited from the 90mm TB.

Photos of the F.A.S.T LSX Intake manifold before installation. Fitted the fuel rails. The braided hose and pressure guage is from Speed Flow (UK based) very helpful company, they visualise what you require and send you all the bits you need. I'm all new to these pipe fittings, I got everything I needed to do the job.

Below is the standard LS1 intake manifold coming out. Need to take care taking it out as some pipes at wrapped round the oil pressure sensor, this can easily snap, we managed to take the old manifold off okay without knocking the sensor.
Once the old one clear need to change the bolts that hold in the knock sensors to lower profile ones, these come in the kit and need to be used as the new intake is deeper and will fowl on the old bolt causing damage. While changing these bolts I knocked the oil pressure sensor, breaking it off, whoops, this car wont be going this weekend. Going to order a new part on Monday, hopefully will come next day.

New FAST LSX intake manifold on the left, stock on the right. Need to swap over the throttle body, and move the gaskets from one to the other, they are reusable. not reusing the fuel rails as I have some nice anodised ones to be fitted.

LSX Manifold going in. to help with the install got rid of the AIR and EGR, will modify this with the HPTuners software.

Installation all complete!.

Had a faulty oil pressure sensor, so all came off again and changed the sensor. Off and on again in about 1 hour. Ready for the Can-Am 2005 Show the next day.

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