Written by Graham Hansen and Posted with Permission of CarTechBooks. The jets for this unit are calibrated to produce a nominal 100, 125, 150, and 175 hp. Some aftermarket blocks are also plumbed for improved oiling, even including the capability to spray oil up and cool the bottom surface of the piston in some applications. The difference between a two-plane air gap intake and a single plane race intake were virtually the same within experimental error. It is best to closely match the cam and heads first,as there are less choices-and possible mistakes,in intake manifolds.
It might have made a few more horsepower up to the redline at 8,500, but everyone is staying quiet about that. We can custom-build these short blocks to your specs if you are looking for something little bit out of the norm. These kits are available in either wet or dry configurations, and will not affect day-to-day driving, fuel economy, or reliability. To make that happen, you'll typically want to wire, in sequence, several switches. This is how to build a motor for Nitrous that will outperform and outlive motors not built only for Nitrous use. Clearly, they aren't absolutely necessary, and some folks run nitrous systems without any of these devices. All these units allow the triggering of the nitrous to retard the spark timing.
Although it may not be apparent at first, this is only due to the fact that the added exhaust duration is mostly on the opening side of the cam lobe. Well, a lot can go wrong, but hopefully you'll have adequate safety mechanisms built in to protect your motor when it does. Our original one never worked, and our replacement got burned up once during reprogramming. Must have good quality fuel injectors that won't fail on high pressure, and must have a fuel pump that can supply the pressure ie, not the stock injectors or pump. The cam controls valve motion,key to power or lack of it.
Centrifugals have been around for decades. That means carefully matching the intake manifold, carb, cam, heads, compression, and exhaust as one unit and the engine generally runs better than an engine that has been cobbled together. System Optimization To get the best from a nitrous system requires know-how. Our customer support team is available 7 days a week to help you. This is why no one injects pure oxygen into an engine, since the burn rate would basically turn into a true explosion with devastating consequences to an engine. To do a job like this yourself, we highly recommend the following: Buy a factory service manual.
Nitrous also works best with motors that are stock or mildly modified. A factory windage tray was mocked up to ensure compatibility. The company made a name for itself adapting this durable air mover on to late-model performance cars. Copying a dubious trick I learned from Joe, I rounded off the top of the rod bolt shank and the bolt head itself on a belt sander for clearance. The team needed a redline of 8,500 rpm, which would allow the engine to move enough air without overtaxing the valvetrain. With nitrous,you will not burn as much rubber with the 2.
Take a gander at this hot drag car owned by Thadd Dawson of Durham, North Carolina. . Kits range from 50 to 300 hp. This means the nitrous power is simply an add-on and will give a good increase but not necessarily to its full potential. During the test program a session was done with their Gemini Twin plate system and with 300-hp jets it delivered 330-hp increase.
It should seat fully just by pushing on it. This chapter deals with results rather than going into system design detail. Recognizing this common problem Scat relieves the front of its cranks for proper timing gear seating so there is never a question of the timing gear and hub seating correctly and in the correct location. I had to buy a new clutch as soon as I made my first pass with nitrous on slicks. If the plugs run too hot, the motor can detonate and damage will result.
This extreme lean condition is disaster for the engine, and you're not likely to get a second chance - at least with the same engine. Direct port may be a big jump for some, but by the time you are putting in that 300 shot pill and are still looking for more, you have options and Nitrous Express has you covered. Mahle Clevite bearings are used for the final assembly. A stock f-body fuel pump can usually supply enough fuel for around 450 total horsepower to the motor; any more and you want to get a larger pump. You also want to reduce the gap from the stock 0. Using less is asking for trouble.