420A cams

[Christ]

So I've read alot of threads in alot of places about SRT-4 and Turbo 2.4 people swapping 2.0 cams into their 2.4 for more power... I've never seen a dyno sheet or anything on it, and I was kinda wondering exactly where the "more power" is made?

What would 420A cams do in a N/A 2.4? Is there something special about them that I need to know to install them? If they'll move my torque peak down a bit, I'm all for putting them in my van... and shouldn't have any trouble finding them, since 420A's get thrown away every time I turn around.

Just wondering exactly what the mod is worth, and what it would do for N/A apps.

[flaCo]

2.0 DOHC Neon cams got more lift than the 2.4 DOHC N/A Cams , dynoed it's good for about 6 hps @ wheel in a N/A engine with basic bolt ons... I dont know exactly how much gains are in a boosted engine.







More info about 2.0 / 2.4 cams specs (OEM , Crane & Crower)
www.neons.org • View topic - Information: Camshafts

[jory]

From what I've read they shift the powerband up. Which is fine for a smaller car but you might not like them in your van.

[Christ]

Yeah, I'm kinda looking to make more power down low... I don't really ever get on it, I just rev it up to like 3500 or whatever... I don't have a tach either. I have to get a Tach, Vacuum gauge, trans temp gauge (31TH, A413 tranny, with lockup.)

Is there a set of OEM cams that I can get that will move the power band lower? Or just make a little more on the low-mid range?

What about 2.4/2.0 intakes? Which ones should I use to get the best flow for better VE?

Would there be any gains to be had (where I want them) by using just one of the 2.0 cams and one of the 2.4 cams? Which ones would I use?

[flaCo]

Quote:

Is there something special about them that I need to know to install them?

That depends on what's your engine / year / Engine management. If your caravan is a 95-99 2.4 lts change the order in the injectors wiring / Coil Pack & need to turn 90 degrees the cam magnet , (dont remember right now if its clockwise or counterclockwise)

[Christ]

It's a 2000 Caravan base model, 2.4 auto.

According to the local dealer, it was one of like 5 built for this region, and they apparently know nothing about it, b/c the techs stood there for an hour trying to tell me that I have an electronic transmission and it has no bands in it.

[flaCo]

If you use just the exhaust cam you dont have to deal with the cam magnet , Injectors and coil pack

[Christ]

Would the Exhaust cam alone give me any gains on the low-mid side of the RPM range?

[flaCo]

I've always change both cams , I cant tell you what kind of gain are in just changing the exhaust cam... theorically the more lift on the exh. cam helps turbo to spooll faster if you're boosted.

[flaCo]

Upss , sorry , now I see You're N/A

[4Daytonas]

How about advancing the stock Intake cam4-5 degrees? that should pick up the low end and the reduced overlap also should contribute to low end torque.

[flaCo]

My appologise I was a bit confused... forget about all I said about the injectors wiring & coil pack... thats just when you do a complete 2.4 swap and use an 2.0 Engine management (PCM)

You're using a 2.4 with its own 2.4 PCM , so you just need to turn 90 degrees the cam magnet counterclockwise.
here're few links related.

www.neons.org • View topic - 2.0 and 2.4 Intake Cams - differences, and how to use them.

http://forums.neons.org/viewtopic.ph...275914&start=0