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View Full Version : neon cam in a td?



Bardo
08-16-2006, 01:34 AM
has anyone thought of useing a neon turbo cam in a td. for the sohc or for the guys (and girls) useing the new 2.4 dohc

Frank
08-16-2006, 07:59 AM
ummm. 2.0/2.4 cams doesnt even come close to working with 2.2/2.5 cams... not even remotely because of the valve train layout and design.

as for the 2.4L guys, they tend to run the 2.0L cam, but that is kind of a mute point because they are all same or similar in design.

Darkapollo
08-16-2006, 11:14 AM
The SRT4 uses the same cams as the NA 2.4... I dont plan on changing my cams out...

TurboGLH
08-16-2006, 01:34 PM
I plan on swaping in a set of 2.0 cams into my srt-4. The 2.0's have more lift, a bit more duration at .050 (but a bit less overall) and also no overlap. That's vs the 2.4 cams used in every 2.4 made.

Stock SRT-4 Cam Specs
Advertised Duration Intake/Exhaust 248/248
Duration @ .050 Intake/Exhaust 194/196
Lobe Separation 113
Gross Lift 325/259

Neon 2.0L DOHC specs
Advertised Duration Intake/Exhaust 243/243
Duration @ .050 Intake/Exhaust 196/196
Lobe Separation 108
Gross Lift 344/315

Bardo
08-16-2006, 06:05 PM
thanks guys just trying to have an idea

Frank
08-16-2006, 06:19 PM
I plan on swaping in a set of 2.0 cams into my srt-4. The 2.0's have more lift, a bit more duration at .050 (but a bit less overall) and also no overlap. That's vs the 2.4 cams used in every 2.4 made.

Stock SRT-4 Cam Specs
Advertised Duration Intake/Exhaust 248/248
Duration @ .050 Intake/Exhaust 194/196
Lobe Separation 113
Gross Lift 325/259

Neon 2.0L DOHC specs
Advertised Duration Intake/Exhaust 243/243
Duration @ .050 Intake/Exhaust 196/196
Lobe Separation 108
Gross Lift 344/315


The SRT-4 cams have just a bit less left and more seperate... they should better for boost and such.... according to the specs that is.


Frank

daytonaturbo87
08-16-2006, 11:46 PM
194/196? Damn that's weak, I was expecting something more around the range of 225-230 @.05

Frank
08-17-2006, 08:07 AM
Not really. Duration doesnt mean crap without head flow numbers and lift. Less duration is preferred when you need more lobe seperation without bleeding air and/or getting reverse flow during compression and combustion cycles. SO the more lobe seperation you want, the less duration you want. If you dont decrease the duration, you get horrible vacuum and idle/drivability effects. Of course the larger lobe seperation is great because you get less exhuast gas in your cylinder during the intake stroke because you are caping off the high exhaust gas pressure sooner.... much like the issue with weak valve springs on the exhaust.

So... here is the real question... what is the difference in lift for both of those cams?


Frank

Dave
08-30-2006, 10:29 AM
So the 2.0 cams have no overlap as opposed to what? Do the 2.4 Stratus' cams have the same specs as the 2.0?

Bardo
08-30-2006, 06:21 PM
i was talking about the sohc

hybridshadow
10-31-2006, 12:17 AM
im in the middle of a hybrid build myself have done a lot of research
2.0 and 2.4 heads are the SAME - same ports valves flow etc. only difference between the 2 are the cams. on the hybrid setup the 2.4 cams run out of gas at around 5500-6000, while the 2.0 cams easily spin to 7500+ and are much more responsive. not just talking out my rear end- a few guys on the other board have confirmed this in their running cars. best part is they're free if you remember to swap cams when you're pilfering your head out of a yard