NGC and what it means.

D-Railed_Neon · Post by **D-Railed_Neon** » Fri Oct 28, 2011 4:27 am

Sorry guys n00b here, at least to 2gns. I know it's been covered probably 1000 times and before the flaming starts, YES! I spent 10min with the lovely search function trying to figure it out for myself but, from what I understand NGC has something to do with how the PCM tries to control compression and timing and can be a real PITA to get the most out of your mods. I plan to be picking up a R/T intake manifold from one of the members here on 2gn and replacing the entire exhaust system header back in the spring. Naturally the next mod would be a new cam and valve springs but, I have read that NGC neons have issues sometimes with mods like this leaving say and addition of a Crane 12 to my car, almost pointless. Can someone point me in the right direction as to what NGC means, what years fall into this class, and how I can do my HP creating mods, and see the full potential.

Thanks guys!

Donkeypuncher · Post by **Donkeypuncher** » Fri Oct 28, 2011 5:38 am

The NGC computers were only used on the 03-05 neons, so you don't have to worry about it since you have an 02.

D-Railed_Neon · Post by **D-Railed_Neon** » Fri Oct 28, 2011 5:48 am

THANK YOU!!! That is exactly what I wanted to know. Just confirmed purchase arrangements of my R/T intake manifold relay, and wiring. Next will be exhaust then Crane City Baby!! Thank you Donkeypuncher.

darthroush · Post by **darthroush** » Sun Oct 30, 2011 5:40 am

Either way, just to clear it up, engine compression isn't controlled by the computer on any car.

Lantern04rt · Post by **Lantern04rt** » Sun Oct 30, 2011 2:58 pm

darthroush wrote:Either way, just to clear it up, engine compression isn't controlled by the computer on any car.

Lol that would be some trick.

Post by **occasional demons** » Sun Oct 30, 2011 6:51 pm

Lantern04rt wrote:
darthroush wrote:Either way, just to clear it up, engine compression isn't controlled by the computer on any car.
Lol that would be some trick.

Static compression, Agreed.

Dynamic compression, with DOHC, and e controlled cam timing, yeah, the compression could be influenced. Cam overlap, etc, can influence cylinder pressure. (Dynamic compression)

But for factory 2.0/2.4 cylinder heads/valve train, it ain't happening.

darthroush · Post by **darthroush** » Mon Oct 31, 2011 4:14 am

All of those components will change the DCR (aka- cylinder pressure), depending on the specifics of them. When I said compression, I meant the ratio of combustion chamber volume. The DCR is going to be lower than the static anyways.

Jenni · Post by **Jenni** » Mon Oct 31, 2011 5:43 am

new (or next?) generation computer

D-Railed_Neon · Post by **D-Railed_Neon** » Mon Oct 31, 2011 12:41 pm

darthroush wrote:All of those components will change the DCR (aka- cylinder pressure), depending on the specifics of them. When I said compression, I meant the ratio of combustion chamber volume. The DCR is going to be lower than the static anyways.

Sorry should have been more clear. Props to darthroush for picking up what I was putting down lol.

but is there a thread that covers what the differences between an NGC motor and regular are and, what years come with what?

Post by **occasional demons** » Mon Oct 31, 2011 12:45 pm

viewtopic.php?t=16893

D-Railed_Neon · Post by **D-Railed_Neon** » Mon Oct 31, 2011 12:56 pm

ocasional Demons