what would give me more poney's? The cam gear or an underdrive pully?
And if so can you run it with both on, or will the idel be $hitty.

 

I am assuming you have a 2.0 SOHC. The UDP will "free" up about 8-13 hp or so, due to decreasing drag on the engine(less inertia), whereas with the cam gear all you really do is advance or retard your timing. You can do both and it won't be a problem. I'd say do both at the same time and increase the degree on the cam gear 2 degrees to start out with (this will increase acceleration) and advance until you find out what setting you want. Do you have any other mods to the vehicle?

 

i got intake header exahust.

 

The first mod I installed on my car was the underdrive pulley. I have the best type of underdrive pulley. I got it from Howell and I didn't feel a difference/increase in power. U wont get 8-13 hp without good engine/performance mods on your car (upgraded computer, header, Cold air intake, exhaust, plugwires etc). I doubt u would get that much of a gain with a regular SOHC Neon anyway. Modern Performance says the max gain they received with a 1996 Neon ACR (DOHC), 5-speed was 8.2 HP at 5.6 FT-LBS on the dyno. This particular car has a Pacesetter Header, Kirk Cold Air Intake (The Short One), performance plugwires, and a Computer which has been reprogrammed by JET. The hp gains also depend what gear you are testing it in. This was done in the 3rd gear.

As far as the cam gear, I wouldn't recommend it until you upgrade your cam. U wont really get an improvement if u change the cam gear and leave the actual cam stock. If u just get a cam gear by itself, the idle wont really change.

Out of these two, I would recommend the underdrive pulley first. Like I said, I wouldn't get the cam gear without getting an upgraded cam. Then when u get an upgraded cam u should get valve springs to go with it (helps for higher rpm's).

 

Yeah pretty much said it all he did. Basically adjustable cam gears are really to allow you to dial in your cam to specification. You can alter its profile a bit by advancing or retarding the timing but then why not get the cam you are looking for. The adjustment allows you to measure and set the cam to its specification so that the lobe centers are timed correctly providing the performance that you bought. The gears and cams temselves can be of a degree or three depending on several factors such as machine tolerance in cam, gears, and even the crank too. So when you put it together and set it at zero you have no real idea of what you have set anything too until you degree the cam and find out what the hell you have. In school we did this in hot rod and found putting a cam in 2 engines resulted in different readings. A degree or two. But at this wehave to ask how much adjustment do ya get??? You may only have enough to set it to factory spec. Then you adjust and dyno tune to desired setting. Cool huh. Love manufacturing tolerances.

 

aight thanks guys. i might look into the underdrive pully. whats the best one. I saw two on modern performance. Are they the same?

 

The Unorthodox Racing Under Drive Pulley from Modern P. is the best one. U can get the same type of pulley from Howell for cheaper (which I have). My pulley is the same as the Unorthodox Racing Under Drive Pulley.